Journal articles: 'Artisanal fishery'

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Squires, Dale, R. Quentin Grafton, Mohammed Ferdous Alam, and Ishak Haji Omar. "Technical efficiency in the Malaysian gill net artisanal fishery." Environment and Development Economics 8, no. 3 (June 25, 2003): 481–504. http://dx.doi.org/10.1017/s1355770x0300263.

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Artisanal fishing communities include some of the ‘poorest of the poor’. Using data from gill net fishers in Malaysia, the paper presents the first technical efficiency study of an artisanal fishery and finds that artisanal fishers are poor, but enjoy a high level of technical efficiency. If the relatively high levels of technical efficiency found in the Malaysian gill net fishery existed in other artisanal fisheries, it suggests that targeted development assistance that has traditionally been focussed on the harvesting sector may be better directed to other priorities in artisanal fishing communities.

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Martínez-Escauriaza, Roi, Francesca Gizzi, Lídia Gouveia, Nuno Gouveia, and Margarida Hermida. "Small-scale fisheries in Madeira: recreational vs artisanal fisheries." Scientia Marina 85, no. 4 (December 7, 2021): 257–70. http://dx.doi.org/10.3989/scimar.05180.022.

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Small-scale recreational and artisanal fisheries are popular activities in the Autonomous Region of Madeira, and to date no information is available on their impact on regional coastal ecosystems. Through fishers’ surveys and official registers of fish landings, we described and characterized these fisheries in Madeira, comparing artisanal and recreational fisheries. In 2017, artisanal boats landed 91 species in fishing ports, while recreational catches landed 58 species. The most frequent catches were Dentex gibbosus, Phycis phycis and Pagrus pagrus for artisanal fishery and P. pagrus, Serranus atricauda and Diplodus spp. for recreational fishery. Comparing the same techniques, artisanal fishery always showed higher catch per unit effort values than recreational boat fishery. Nevertheless, the low number of artisanal fishery boats in comparison with the recreational ones reflected the lower total landings of the artisanal fishery, which in 2017 were 62.3 t, compared with the 509.8 t estimated catches for the recreational fishery. Though the estimated recreational fishing data were based on surveys and thus subject to various biases, this activity seems to negatively affect coastal ecosystems and, together with artisanal fishing, exerts a combined pressure on targeted species. Improved legislation for both fisheries is essential for an appropriate management of resources.

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Anyanwu, Sixtus Onwukwe, Godwill Ibim Wilcox, Beatrice Belema Okafor, and Constance Eneyo. "Influence of socioeconomic characteristics on artisanal fishing in Andoni L. G. A. of Rivers State, Nigeria." African Journal of Biological, Chemical and Physical Sciences 1, no. 1 (April 25, 2022): 8–16. http://dx.doi.org/10.57040/ajbcps.v1i1.191.

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Rivers State possesses abundant natural and ecological resources for sustainable fish production in Nigeria, but the overall output level implied that these resources had not been optimized. Therefore, research is needed to isolate the missing link in the artisanal fish production value chain. The study examined the impact of socioeconomic characteristics on artisanal fish production among fisher folks in Andoni Local Government Area, Rivers State, Nigeria. Thirty artisanal fisher folks randomly selected from four communities through structured questionnaires and interview schedules were used for the study. Descriptive statistics involving frequencies and percentages and regression equations were utilized in the analysis. Age, household size, educational level, Artisanal fishing experience and extension contact played significant roles in determining the output and gross income of artisanal fishermen folks in Andoni L.G.A. To change the direction of management of affairs towards increased artisanal fishery in Rivers State, Nigeria, the study recommended that relevant government agencies saddled with the responsibility of making and implementing decisions in the fishery sub-sector should give pride of place to variables such as age, household size, educational level, Artisanal fishing experience and extension contact.

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Adisa, Rashid Solagberu, Ifabiyi John Oluwaseun, and Opeyemi Gbenga. "DETERMINANTS OF CAPACITY BUILDING NEEDS OF ARTISANAL FISHERS IN KOGI STATE, NIGERIA." Journal of Asian Rural Studies 5, no. 1 (March 26, 2021): 78. http://dx.doi.org/10.20956/jars.v5i1.2706.

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Nigerians are high fish consumers as the per capita consumption is 14.9 kg per year and has the largest market for fish and fishery products in Africa. Artisanal fishers provide fish for large proportion of fish consumed by our teeming population. These set of fishers depend on crude gears and technology and small vessels in capturing multiple fish species. This study examined the determinants of the capacity building needs of artisanal fishers in Kogi State, Nigeria. The study used primary data. The primary data were collected using structured questionnaire. Multistage sampling technique was use to select the respondents. A total number of 292 respondents were selected for the study. Data were analyzed using frequency, percentage, mean and Binary Logistic Regression. The results showed that more than half (71.6%) of the respondents had low knowledge level and majority (87.0%) of the respondents had high capacity building needs. The educational status (p<0.10), years of experience in fishing activities (p<0.10), contacts with extension services (p<0.01) and craft type (p<0.05) are the determinants factors of capacity building needs of the artisanal fishers. The study concluded that the majority of the fisher folks had low knowledge level on fishing practices. Majority of the fisher folks had high capacity building needs. The study therefore recommends the provision of training in the areas of high capacity building needs and that there should be consideration of factors influencing the capacity building needs of artisanal fisher folks during the planning and implementation of any training programme on artisanal fisheries.

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Butler, Edward C., Amber-Robyn Childs, Andrea Saayman, and Warren M. Potts. "Can Fishing Tourism Contribute to Conservation and Sustainability via Ecotourism? A Case Study of the Fishery for Giant African Threadfin Polydactylus quadrifilis on the Kwanza Estuary, Angola." Sustainability 12, no. 10 (May 21, 2020): 4221. http://dx.doi.org/10.3390/su12104221.

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It has been suggested that tourism fisheries can raise the value of landed catch, provide alternative livelihoods for local artisanal fishers and, because recreationally caught fishes are often released, simultaneously conserve stocks. However, for fishing tourism to meet ecotourism standards, sustainable, local economic benefit is imperative. This study aimed to assess the direct economic contribution of the recreational fishery for Polydactylus quadrifilis on the Kwanza Estuary, Angola. The recreational fishery contributed significantly to economic productivity in an otherwise rural area, generating a total revenue (TR) of $236,826 per four-month fishing season. Based on TR, P. quadrifilis was 3.6–32.6 times more valuable than the same fish caught and sold in the artisanal sector. However, high rates of economic leakage (86.1% of local TR) reduced the value of recreationally caught fish to below that of artisanally caught fish. Important sources of economic leakage were via the non-local sourcing of lodge supplies, services and staff and through the repatriation of profits. Capacity building within the local community is suggested to reduce leakages and to create ‘linkages’ with the recreational fishery. Greater community involvement, including the provision of business shares and greater communication and control, is suggested to achieve sustainability and incentivise the protection of recreationally important fishery species.

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Purcell, Steven W., Watisoni Lalavanua, Brian R. Cullis, and Nicole Cocks. "Small-scale fishing income and fuel consumption: Fiji’s artisanal sea cucumber fishery." ICES Journal of Marine Science 75, no. 5 (March 27, 2018): 1758–67. http://dx.doi.org/10.1093/icesjms/fsy036.

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Abstract Understanding the income and costs of fishing is fundamental to managing fisheries and planning interventions to improve efficiency and gender equity. Few studies offer data on fisher incomes and fuel use in small-scale fisheries (SSFs), and fewer have assessed factors influencing variation among fishers and between genders. We interviewed 235 artisanal fishers among 34 island villages in an artisanal sea cucumber fishery in Fiji. Linear mixed models were used to determine the effect of geographic and socioeconomic variables on incomes and fuel use from fishing sea cucumbers. Net income of sea cucumbers to fishers, averaging FJ$8, 171 year−1 (US$4, 494 year−1) (range: FJ$0–52,008 year−1), varied among villages and was 47% lower for women than men. On an average, 60% of fishers’ gross annual income came from fishing and selling sea cucumbers, although this proportion varied greatly even within villages. Fishers who practised gleaning, fished less often, or possessing numerous livelihood income streams, were less economically dependent on sea cucumbers. Men tended to estimate higher incomes for an average day of fishing than women when compared with their recall of last sale. Fuel use varied greatly among regions in Fiji but, overall, averaged 428 L fisher−1 year−1, and represented 28% of gross income. More economical fishing strategies by women resulted in lower fuel use than men per fishing day. Breath-hold divers used less fuel (compared to fishers using scuba) and fishers targeting deep-water species used more fuel than other fishers. A best approximation of 8000 t CO2 year−1 for the carbon footprint of the whole fishery suggests that some SSFs, such as the one studied here, can be significant contributors to greenhouse gas emissions, even compared to many large-scale fisheries globally. Reforms to the management of SSFs should consider regulations that minimize carbon emissions and reduce economic dependency on vulnerable marine resources.

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Abernethy, Kirsten E., Edward H. Allison, Philip P. Molloy, and Isabelle M. Côté. "Why do fishers fish where they fish? Using the ideal free distribution to understand the behaviour of artisanal reef fishers." Canadian Journal of Fisheries and Aquatic Sciences 64, no. 11 (November 1, 2007): 1595–604. http://dx.doi.org/10.1139/f07-125.

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We used the theory of the ideal free distribution (IFD) as a framework to understand the mechanisms underlying fishing site selection by Anguillian artisanal fishers exploiting shallow-water coral reefs. Contrary to the predictions of IFD, fishers did not distribute themselves so that average reward was equal among fishers using different fishing methods or among fishers using the same method. In addition, fishing pressure did not increase with resource availability. Key assumptions of the IFD were not met. The distribution of Anguillian fishers was not "ideal" because lack of knowledge prevented fishers from choosing fishing grounds with the greatest rewards. Not all fishers sought to maximise profit. In addition, all fishers were not "free" to distribute themselves among reefs owing to variation in social, economic, and physical characteristics of fishers that constrained fisher movements and ability to extract resources. This study shows that as a null model the IFD is useful to frame studies designed to gain detailed insights into the complexity and dynamics of a small-scale fishery. Alongside ecological data, this framework may inform efficient and effective development of reef and fishery management practice.

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Dennard, Susan T., M. Aaron MacNeil, Margaret A. Treble, Steven Campana, and Aaron T. Fisk. "Hierarchical analysis of a remote, Arctic, artisanal longline fishery." ICES Journal of Marine Science 67, no. 1 (August 22, 2009): 41–51. http://dx.doi.org/10.1093/icesjms/fsp220.

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Abstract Dennard, S. T., MacNeil, M. A., Treble, M. A., Campana, S., and Fisk, A. T. 2010. Hierarchical analysis of a remote, Arctic, artisanal longline fishery. – ICES Journal of Marine Science, 67: 41–51. This is the first paper to explore trends in catch per unit effort (cpue) through time of a Greenland halibut Reinhardtius hippoglossoides stock targeted by an artisanal, winter fishery in Cumberland Sound on southern Baffin Island, Canada. We modelled cpue data from 1987 to 2003, looking at two questions: what factors have driven cpue trends, and is cpue an accurate index of a stock's abundance? In the context of limited data availability, we used generalized linear models (GLMs) and hierarchical models to assess important predictors of cpue. Hierarchical models with multiple fixed environmental effects contained fishing location or individual fisher as random effects. A month effect showed greatest catch rates during February and March; the monthly North Atlantic Oscillation index was positively associated with catch rates; and a change from decreasing to increasing cpue after 1996 was linked to reduced fishery participation following a large storm. The best Akaike's information criterion-ranked GLM identified a negative relationship of cpue with shark bycatch. Although data limitations precluded conventional stock assessment, our models implicated the environment and fisher behaviour as drivers of cpue trends. Additionally, using multiple hierarchical models to predict cpue provided a more informative analysis for understanding trends in cpue than a GLM alone.

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Novaes, José Luís Costa, and Edmir Daniel Carvalho. "Analysis of artisanal fisheries in two reservoirs of the upper Paraná River basin (Southeastern Brazil)." Neotropical Ichthyology 11, no. 2 (June 2013): 403–12. http://dx.doi.org/10.1590/s1679-62252013005000002.

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We compared the artisanal fisheries, in terms of catch strategies, productivity, and gross per capita income, at two reservoirs: the Barra Bonita (an eutrophic reservoir with some introduced species), and the Jurumirim (an oligotrophic reservoir, with no introduced species). Published data and structured interviews with fishers were used to evaluate fishing activity, fish biomass, and the financial performance of the fisheries. In the Barra Bonita Reservoir we analysed data from 745 fishing trips, from which 86,691.9 kg of fish were landed, with a mean CPUE of 62.4 kg/fisher-1 day-1. The main type of fish caught was tilapia (71,513.5 kg; CPUE of 51.5 kg/fisher-1 day-1), which constituted 82.5% of the biomass caught. In the Jurumirim Reservoir, we analysed data from 2,401 fishing trips, from which 25,093.6 kg of fish were landed, with a mean CPUE of 10.4 kg/fisher-1 day-1. The main type of fish caught was "traíra" (6,158.6 kg; CPUE of 2.6 kg/fisher-1 day-1), which constituted 24.5% of the biomass caught. Ordination analysis (PCA) indicated that there was a difference in composition between the fishing reservoirs and ANCOVA showed that there was a significant difference in fish production between the reservoirs. A Student's t-test showed that fishers in the Barra Bonita Reservoir had a significantly higher gross per capita income than those from the Jurumirim Reservoir. Although the Barra Bonita Reservoir has a higher fish production and the fishers earn a higher gross per capita income, we recommend the Jurumirim Reservoir as a model for artisanal fishery management because fishing activity in this reservoir is viable in the long term and such a model would promote conservation and sustainability. This contrasts with the Barra Bonita Reservoir, in which the fishery is not viable in the long term, due to environmental problems caused by artificial eutrophication and the introduction of alien species. It is also noted that in many countries, management of fisheries based on exotic species has not been viable in the long term.

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Barbosa-Filho, Márcio L. V., Rachel Ann Hauser-Davis, Salvatore Siciliano, Thelma L. P. Dias, Rômulo R. N. Alves, and Eraldo M. Costa-Neto. "Historical Shark Meat Consumption and Trade Trends in a Global Richness Hotspot." Ethnobiology Letters 10, no. 1 (November 5, 2019): 97–103. http://dx.doi.org/10.14237/ebl.10.1.2019.1560.

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Shark catches have increased worldwide, threatening the survival of several species. This study describes historical trends concerning shark consumption and commercialization by artisanal fishers in northeastern Brazil. Semi-structured questionnaires were applied and respondents pointed out that sharks used to be locally regarded as low-quality fish in the past and rejected by fish consumers, with low fisher consumption frequency. However, this has changed in recent decades, as a total of 95.4% (n=62) of the questionnaire respondents reported currently consuming shark meat, while 61.5% (n=40) highlighted its high quality. In addition, most interviewees (90.8%; n=59) reported decreasing numbers of sharks caught over time, following worldwide trends, leading to decreased fisher access to shark meat. Because of this, most respondents (70.7%, n=46) now consider it more advantageous to sell the sharks they catch than to consume them. In addition, the local commercialization of these fish is currently based on immature coastal species (<1 m). Thus, economic and biological studies on local shark populations are suggested in order to preserve local fisher culture and ensure food security for artisanal fisher communities and a long-term sustainable fishery and conservation of exploited species.

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Abubakar, Almubarak A., Gladys M. Okemwa, and Edward N. Kimani. "Comparative assessment of the impacts of artisanal trolling and industrial longlining on yellowfin tuna exploited off the Kenyan coast." Western Indian Ocean Journal of Marine Science 21, no. 2 (February 27, 2023): 131–40. http://dx.doi.org/10.4314/wiojms.v21i2.11.

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The Indian Ocean yellowfin tuna stock has been classified as overfished and remains subject to overfishing by industrial and artisanal fleets despite the implementation of catch reduction measures to rebuild the stocks. This study assessed the impacts of artisanal trolling and industrial pelagic longlining on the population structure of yellowfin tuna exploited in Kenyan waters. Catch data including fork length, sex and gonad maturity was examined for the two fisheries between April 2019 and April 2021. Selection patterns were then compared using eight length-based indicators and a suite of indicator ratios. Results showed that artisanal trolling caught smaller individuals ranging from 32−177 cm with a mean of 76 ± 0.5 cm and a mode of 71 cm. The industrial fishery caught significantly larger individuals (p > 0.05) ranging from 52 – 204 cm with a mean of 137 ± 0.7 cm and a mode of 160 cm. Length at first capture (Lc) for artisanal trolling was estimated at 36 cm and 80 cm for the industrial fishery. Statistical tests further revealed significant differences in length distribution and selectivity curves. It was clear that the fisheries consistently captured distinct components of the yellowfin tuna population structure. The industrial fishery was dominated by mature individuals above length at 50 % maturity (>100 cm, L50) constituting 90 % of the sampled catch of which 56 % were large mega-spawners above the optimum length (> Lopt + 10%). On the other hand, 92 % the artisanal trolling fishery constituted small individuals below L50 and no mega-spawners. Overall, the average monthly sex ratio was skewed to males (F:M ratio = 1: 1.14). Deviations from the expected 1:1 sex-ratio were not significant; however, industrial longline catches were skewed towards large males, and artisanal trolling catches towards small females. The study illustrates application of widely used lengthbased approaches to derive insights on fishery interactions in data limited scenarios.

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Ndarathi, John, Cosmas Munga, Jean Hugé, and Farid Dahdouh-Guebas. "A socio-ecological system perspective on trade interactions within artisanal fisheries in coastal Kenya." Western Indian Ocean Journal of Marine Science 19, no. 2 (April 2, 2021): 29–43. http://dx.doi.org/10.4314/wiojms.v19i2.3.

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Assessments of coastal artisanal fisheries are progressively adopting a social-ecological system (SES) approach as an effective means to accumulate knowledge and integrate findings on different aspects of the fisheries. Ostrom’s SES framework was used to guide assessment of interactions between and within the harvesting and supply-chain processes and the effect of external drivers, seasonal monsoons and tourism, on both processes in a coastal artisanal fishery system in Gazi Bay, Kenya. Specific analyses focused on seasonal catch composition, key resource user groups involved in the fish trade and the resource units traded by each user group. The snowball method was used to identify key resource user groups within the fishery sector, who were then interviewed using semi-structured questionnaires (n = 60). Additionally, existing annual shore-based catch assessment and monthly fish landings data for the years 2014 and 2015 were incorporated for analysis of artisanal catch properties (species composition and weight). Comparison of seasonal catch composition was carried out using sample-based rarefaction curves. Higher fish landings and higher species diversity were recorded during the North-East Monsoon season. Further, a simple fish harvesting-supply network comprising of six key resource user groups (i.e. hotels, fish processing companies, dealers, small-scale fish processors (mama karanga), fish mongers and fishers) was outlined. The tourism industry, through hotels, creates a high demand for fish coinciding with a higher catchability and supply during the calm North-East Monsoon season and consequently, dealers hire migrant fishermen to target pelagic fish. Evidence of interactions within and between different fishery sub-systems, as well as the effect of monsoon seasons and tourism on the exploitation and market dynamics of the multispecies fishery, highlight the need for comprehensive management plans to strengthen self-organization among resource users and to increase adaptive capacity within the fishery system.

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Nunoo, F. K. E. "Achieving sustainable fisheries management: A critical look at traditional fisheries management in the marine artisanal fisheries of Ghana, West Africa." Journal of Energy and Natural Resource Management 2, no. 1 (February 21, 2018): 15–23. http://dx.doi.org/10.26796/jenrm.v2i0.40.

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Sustaining fishery resources is crucial to the survival and wealth of artisanal fishers in Ghana. The artisanal fisheries sector ofGhana provides food, employment, livelihood support and socio-economic benefits to the Ghanaian economy. Fishery resourcesof Ghana are under stress from population pressure, increasing demand of fish and fishery products and open-access regime.Formal fisheries management practices have not yielded the desired results. There is an increasing need for traditional fisheriespractices to be incorporated into formal fisheries management practices. The aim of this paper is to conduct an in-depth studyon traditional marine fisheries management systems in Ghana in order to provide information to enhance the management of theartisanal fisheries.Data was collected through document analysis (between May 2014 and January 2015), field observation andquestionnaire-based interview (between 26th and 30th of July 2014). Results show that the Chief Fisherman and CommunityBased Fisheries Management Committee are important structures in the fisheries management system of Ghana. The ChiefFisherman is the person that leads resolution of disputes and gives access to fishing in the communities. There are a number ofmeasures such as non-fishing days, ban on landing certain fish species during festival periods to prevent overfishing. Taboos andcultural practices such as performing of rituals to ‘sea gods’ and consulting of oracles during certain periods of the year help tomanage the fish stocks. With respect to the performance of the fishing communities, Elmina performed better with combinationof various traditional practices to prevent overfishing. Fishers in Elmina also had adequate knowledge of current fishing rulesand regulations than fishers in Adina, Chorkor and Dixcove. Fishers and fishing communities must be educated on the need toavoid unapproved fishing practices to help keep the fishery resources healthy for sustainable exploitation. Fishers should also beequipped with alternative livelihood jobs in order to reduce the pressure on the fishery resources. A national policy to integratetraditional management practices into formal fisheries management plans should be established.

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Mome, Masud Ara, and Ragnar Arnason. "Monitoring artisanal hilsa fishery for economic efficient fisheries policy." Bangladesh Journal of Zoology 43, no. 1 (December 29, 2015): 37–53. http://dx.doi.org/10.3329/bjz.v43i1.26136.

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The hilsa shad (Tenualosa ilisha) fishery contributes to the largest single species fishery in Bangladesh. In this paper, a simple bio-economic year-class based model was developed from 1987 & 2007 fishing data to describe the fishery and examine its properties. With the help of this model, the optimum sustainable yield of the fishery was calculated and compared to the existing situation. The model was further used to locate socially and economically reasonable dynamic paths from the current situation to the optimal state. The results indicate that the fishing effort (measured in standardized boat units) required maintaining a maximum sustainable economic benefit is about one-third of the current fishing effort. At this sustainable fishing effort level, annual net economic benefits from the fishery amounted for closed to US$ 260 million compared to virtually nothing at present. The present value of the fishery along a moderate effort adjustment path to this long term equilibrium position was US$ 3,650 million at 6% rate of discount. The dynamic path that maximized the present value of the fishery involved quite dramatic effort reductions for the first two years. Such a path would probably increase the present value of the fishery by perhaps 8-10%.Bangladesh J. Zool. 43(1): 37-53, 2015

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Ceni, G., N. F. Fontoura, and H. N. Cabral. "The freshwater artisanal fishery of Patos Lagoon." Journal of Fish Biology 89, no. 1 (June 2, 2016): 337–54. http://dx.doi.org/10.1111/jfb.13004.

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R O, Kareem, Idowu E O, Williams S B, Ayinde I A, and Bashir N O. "Comparative Analysis of Motorized and Manually Propelled Technologies of Artisanal Fisheries in Ijebu Waterside of Ogun State." Sustainable Agriculture Research 2, no. 1 (November 19, 2012): 133. http://dx.doi.org/10.5539/sar.v2n1p133.

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<p>This study was carried out to analyze the comparative analysis of efficiencies of artisanal fisheries in Ijebu Waterside of Ogun State. The objectives determined gross margin analysis; estimate the technical efficiencies of both the manually propelled technology (MPT) and motorized technology (MT) of artisanal fishery systems and determining the factors influencing the technical efficiencies of artisanal fisheries in the study area. A multistage sampling technique was used to select a total of 400 Artisans from the study area. Primary data were collected using structured questionnaire as interview guide, on the socio-economic characteristics, production inputs and output prices. The data collected were analyzed using both descriptive and inferential statistics. Stochastic production frontier model was used to estimate the technical, efficiencies of both motorized and manually propelled technologies in artisanal fishery system as well as the factors influencing the technical, efficiencies of the artisans.</p> <p>The results of the comparison of the MPT and (MT) revealed that the average income per month for MPT was N361,847.48 and the amount accruable per month for the MT was N560,755.57. The results of the comparison of catch efficiency and inefficiency function showed that in MPT, fishing gear, vessel length, number of crew/skippers, quantity of bait and battery were all significant at 5 percent probability level while for MT, fishing gear, outboard engine, battery and miscellaneous quantity were the significant factors. The mean catch efficiency of MPT was 0.92 compared to MT with 0.98. However, the comparison of the inefficiency shows that education, age, and household size are significant factors while education is significant factors in both MPT and MT respectively. The results of the returns-to-scale revealed that the parameters estimate of the MT was higher with 4.35 compared to MPT with 2.56.</p>

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CINNER, J. E., T. DAW, and T. R. McCLANAHAN. "Socioeconomic Factors that Affect Artisanal Fishers’ Readiness to Exit a Declining Fishery." Conservation Biology 23, no. 1 (February 2009): 124–30. http://dx.doi.org/10.1111/j.1523-1739.2008.01041.x.

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BAHOU, Laurent. "How far can Tunas and Sardinellas derived from artisanal fishing be exported for retail trade from Côte D’Ivoire, West Africa?" International Journal of Zoology and Applied Biosciences 7, no. 6 (November 9, 2022): 32–38. http://dx.doi.org/10.55126/ijzab.2022.v07.i06.005.

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In West Africa, marine artisanal fisheries´ usefulness lies in their capability to support people´s increasing demand for fish, as fish-consumption is generally viewed as the first and foremost way to provide a large amount of animal proteins to consumers. Here, information about the marine artisanal fishery located at Sassandra, southwestern Côte d’Ivoire, are provided, talking about the processing, marketing and distribution of two small pelagic species that are targeted by that fishery. The study was carried out as field work activities in February-March and August-September 2021, using a questionnaire to which people working for the benefit of the fishery willingly submitted themselves. The results shed light on marketing and the route to be followed by the fishery products when these are to leave Sassandra for retail trade. Women participation in post-harvesting tasks is also singled out as a way to acknowledge the significant role they play in artisanal fisheries. The study calls on decision Makers to equip attention to equip women with modern ovens as a way to tackle problems facing women in their efforts to process the fish.

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Pereira, Natalia, and Fernando D'Incao. "Relationship between rainfall, pink shrimp harvest (Farfantepenaeus paulensis) and adult stock, associated with El Niño and La Niña phenomena in Patos Lagoon, southern Brazil." Journal of the Marine Biological Association of the United Kingdom 92, no. 7 (March 30, 2012): 1451–56. http://dx.doi.org/10.1017/s0025315412000021.

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The pink shrimp (Farfantepenaeus paulensis) is a very important fishery resource in southern/south Brazil. A great part of the total capture at these regions results from the artisanal fishery activity in Patos Lagoon estuary. The study of this species has importance because it is the main source of income for the communities of artisanal fisheries. This paper relates the climatic effects and the size of the species' adult stock with the harvest of pink shrimp in the estuary, in order to determine the influence of these variables on annual landings (t).

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Roy, Pradip. "A Comparative Social Study among Artisanal Subsistence Marine Fishers of Sundarbans, Paradeep and Chennai." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (April 11, 2021): 1931–40. http://dx.doi.org/10.17762/turcomat.v12i2.1774.

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This paper does a comparative study of the socio-economic condition of the artisanal subsistence marine fishers of the three locations of India namely Sundarbans, Chennai and Paradeep. The small-scale artisanal marine fishers of Chandrapur, Gobindapur, Kalinagar, Ganeshpur villages of Kakdwip Subdivision, Sundarbans along with that of Badakalikhada, Bijaychandrapur, Light House and Kharinali, of Paradeep and Nochi Nagar, Light House, Foreshore Estate, Mandaveli, Mylapore of Chennai were asked the standardised questions. Sundarbans, Paradeep and Chennai have three distinct socio-economic conditions prevailing due to the privatisation of the fishery industry and the distinct difference in income.The purpose of this study is to find the socio-economic condition of the artisanal marine fishers of the Sundarbans, Paradeep and Chennai. A descriptive rapid sampling method has been followed, where the fishers have been questioned about their respective socio-economic status. The paper studies the income difference and the effect of the usages of motorised boats in two three-year slots 2015-2018 and 2018-2020 affluence due to more exposure to the technical changes. The study found that the Chennai fishers were more adept to take the advantage of the new technologies of marine fishing thus far more economical stable, the Paradeep fishers were second in economic stability due to their comparative adaptability. The Sundarbans fishers were least adept with the technological changes in marine fishing, consequently they are least affluent.

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Ditty, John Marr, and Carlos Eduardo de Rezende. "Public participation, artisanal fishers, and the implantation of a coastal megaproject." Sociedade & Natureza 25, no. 1 (April 2013): 51–60. http://dx.doi.org/10.1590/s1982-45132013000100005.

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The present study seeks to identify the perceptions of the marine artisanal fishers of the community of Farol de São Tomé in the municipality of Campos dos Goytacazes, RJ, Brazil, regarding the political decision-making process regulating the implantation of the Açu Superport Industrial Complex (ASIC). The marine artisanal fishery in this community may be threatened by the size and scope of the ASIC, which is to be the largest industrial port complex in Latin America. Data were gathered through interviews with open-ended questions conducted among 13 active marine fishers within the community of Farol de São Tomé. The results of the study indicate that although the fishers desired participation in the ASIC's licensing process, there were insufficient opportunities for such participation and that fishers are suspicious of the motives guiding decisions affecting their region. Fishers also predict adverse changes to their activities. In order to debate operational questions relating to the ASIC we recommend that public hearings be held in the community of Farol de São Tomé.

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ISAAC, V. J., C. O. DA SILVA, and M. L. RUFFINO. "The artisanal fishery fleet of the lower Amazon." Fisheries Management and Ecology 15, no. 3 (June 2008): 179–87. http://dx.doi.org/10.1111/j.1365-2400.2008.00599.x.

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Oliveira, Pablo da Costa, Ana Paula Madeira Di Beneditto, Eduardo Manuel Rosa Bulhões, and Camilah Antunes Zappes. "Artisanal fishery versus port activity in southern Brazil." Ocean & Coastal Management 129 (September 2016): 49–57. http://dx.doi.org/10.1016/j.ocecoaman.2016.05.005.

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Kapapa, Lyidia, Paul Onyango, Nibedita Mukherjee, and Prosper Mfilinge. "Impacts of Climate Change on Small Pelagic Fish Catches in the Coastal Artisanal Fishers Communities of Tanzania." Tanzania Journal of Science 48, no. 4 (December 30, 2022): 747–59. http://dx.doi.org/10.4314/tjs.v48i4.3.

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Climate-related effects occur across all regions in Tanzania, affecting primary sectors such as agriculture and fishing. This study investigated the impacts of climatic change on small pelagic catches in fishers in Kilindoni, Kipumbwi and Kilwa Kivinje villages along the Tanzanian coast. We studied how changes in rainfall, sea surface temperature, wind speed and chlorophyll a affect small pelagic fisheries using primary and secondary data. Qualitative and quantitative methods were applied. Primary data collection involved questionnaires, focus group discussions and key informant interviews. Secondary data was obtained from Tanzania Meteorological Agency and remote sensing from Modi's sensor. Results showed an increase in sea surface temperature (tau = 0.0151, 0.0121, 0.0238 for Kilindoni, Kilwa Kivinje and Kipumbwi, respectively) and unpredictable changes in rainfall patterns which affected small pelagic fisheries. The average rainfall was 284.6, 97.5 and 56.4 mm in Kilindoni, Kilwa Kivinje and Kipumbwi, respectively. In recent years, rain has been unreliable compared to the past 20 years. Unpredictable rainfall, increased sea surface temperature, wind speed and chlorophyll a had negatively impacted the small pelagic fishery. There was a strong relationship between the decline of small pelagic catches and climatic variables. The findings of this study have implications for coastal fisher's livelihood, income and food security. Keywords: Coastal communities; small pelagic fishery; climate change; fisheries; livelihood

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FALOLA, Abraham, Ridwan MUKAİLA, Temitope Esther OLONADE, İbrahum ADESHİNA, and Adedamola Moses ADEWALE. "Nijerya'da geleneksel balıkçılık yapan çiftçilerin refah düzeyleri: Etkili faktörler ve sorunlar." Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi 27, no. 3 (December 1, 2022): 588–600. http://dx.doi.org/10.37908/mkutbd.1114623.

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Aims: Despite the contribution of artisanal fishery to the fishery sector, there is a dearth of information on the welfare of artisanal fish farmers. Therefore, this study investigated the welfare of artisanal fish farmers in Nigeria.Methods and Results: The study used primary data collected from 330 artisanal fish farmers, which were analysed with descriptive statistics, Foster-Greer-Thorbecke index and multiple regression. The results indicated that the artisanal fish farmers had poor access to credit facilities, standard medical facilities, quality and nutritious food, quality education for their children, shelter, drinkable water and environmental security. While the highest share (52.42%) of farmers' expenditures was allocated to food expenditures, only 15.02% was allocated to basic non-food items such as children's education, shelter, clothing and health. Analysis of the relative poverty indices of the farmers showed that the poverty incidence, depth and severity were 0.633, 0.165 and 0.062, respectively. Their welfare was significantly influenced by gender, age, income from artisanal fish farming, income from other sources, access to credit, household size, farming experience and assets. The major constraints to the welfare of the farmers were inadequate credit facilities and a lack of government support.Conclusions: The artisanal fishing households had a low standard of living, poor welfare and high poverty incidence. This study, therefore, advocates institutional support by relevant agencies to improve the welfare of this group of farmers. This could be in form of the provision of modern fishing equipment, adequate and necessary information, modern health care centres, free standard schools and loans at little or no interest rate.Significance and Impact of the Study: This study contributes to the body of knowledge by using the expenditure approach to measure artisanal fishing households’ welfare and the results will serve as a reference point for policymakers to improve the artisanal fish farmers’ and rural households’ welfare.

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Fondo, Esther N., and Benrick Ogutu. "Sustainable crab fishery for Blue Economy in Kenya." Aquatic Ecosystem Health & Management 24, no. 1 (January 2, 2021): 21–26. http://dx.doi.org/10.14321/aehm.024.01.05.

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Abstract Lakes, rivers and oceans provide unique resources and support fisheries and aquaculture worldwide. The fisheries and aquaculture sector of Kenya contributes approximately 0.8% to the country’s GDP. Marine production is about 9 000 tonnes per year. Marine finfish form the bulk of the marine production, while shellfish (e.g. prawns, lobsters and crabs), molluscs (e.g. octopi and squids) are underexploited. The Fishery sector has the potential of about USD 5 billion for the Blue Economy in Kenya. Crab fishery in Kenya is active in some areas of the south and north coast. The crab resources along the Kenyan waters are diverse and a variety of species are edible. The most commonly fished crab by artisanal fishers is the Mangrove Mud Crab Scylla serrata. Semi-commercial and industrial fishers usually have portunid and other deep sea crabs as by-catch in trawl and longline fisheries, which in many cases are unutilized. Exports of live crabs have increased over the years, with exports mainly to Asian countries. Export of frozen crabs started recently. The need to sustainably utilize lake, river and ocean resources is recognized and important in promoting Blue Economy. Sustainable development of crab fishery provides a potential area for the Blue Economy development in Kenya. Research is essential to crab fishery development.

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Mwakaribu, Athman, Cosmas Munga, Mumini Dzoga, Paul Njihia, and Danny Mulala. "Retained fish catches of artisanal fishers is dependent on fishing area, season and fishing gear type: A case study from the south coast of Kenya." Western Indian Ocean Journal of Marine Science 21, no. 2 (February 27, 2023): 11–23. http://dx.doi.org/10.4314/wiojms.v21i2.2.

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The artisanal fishery is one of the sources of livelihood along the Kenya coast. Catches of retained fish of artisanal fishers between two fishing areas on the south coast of Kenya were compared. Artisanal fishers usually retain a portion of their daily catch which is reserved for family consumption while the rest is traded for cash to meet other family needs. This study hypothesized that retained fish catches were influenced by fishing area, fishing gear type and season. Daily fish landings and retained fish catches among artisanal fishers were monitored between August 2020 to July 2021 covering the South East Monsoon (SEM) and North East Monsoon (NEM) in Msambweni and Vanga fishing areas. A total of 60 fishers (30 for each area) were randomly selected and their retained catch monitored on a daily basis. The overall total fish landings were 23.3 tons and 210 tons in Msambweni and Vanga, respectively. The mean catch rate at Msambweni was 3.3 ± 0.12 kg.fisher-1day-1 in the NEM season and 2.2 ± 0.09 kg.fisher-1day-1 in the SEM season. Fish catch rates in Vanga was 8.5 ± 0.28 kg.fisher-1day-1 in the NEM season and 7.9 ± 0.29 kg.fisher-1day-1 in the SEM season. A total of 0.98 tons (only 4.2 %) of fish was retained versus 22.32 tons (95.8 %) not retained by the artisanal fishers in Msambweni, while in Vanga a total of 1.64 tons (only 0.78 %) was retained versus 208.36 tons (99.22 %) not retained. Retained fish catch varied significantly with season and type of fishing gear used (p < 0.05). Among the retained species in Msambweni, Siganus sutor made the highest contribution (53 %), followed by Lethrinus mahsena, (5.08 %). The species Euthynnus affinis and Sphyraena obtusata were mostly retained in Vanga with a contribution of 10.4 % and 10.2 %, respectively. The same retained fish species represented the most abundant species in the overall fish landings, however sizes were significantly smaller than those not retained by fishers (p < 0.05). Results of non-Metric Multidimensional Scaling (nMDS) ordination showed differences in species composition between fishing areas, seasons and fishing gear types with implication on fishers’ retained catches.

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Guard, Martin, and Yunus D. Mgaya. "The Artisanal Fishery for Octopus cyanea Gray in Tanzania." AMBIO: A Journal of the Human Environment 31, no. 7 (December 2002): 528–36. http://dx.doi.org/10.1579/0044-7447-31.7.528.

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Connor Blades, D., J. Walcott, and JA Horrocks. "Leatherback bycatch in an eastern Caribbean artisanal longline fishery." Endangered Species Research 40 (December 19, 2019): 329–35. http://dx.doi.org/10.3354/esr01000.

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Seijo, Juan Carlos. "Individual Transferable Grounds in a Community Managed Artisanal Fishery." Marine Resource Economics 8, no. 1 (April 1993): 78–81. http://dx.doi.org/10.1086/mre.8.1.42629048.

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Bush, Emma R., Rebecca E. Short, E. J. Milner‐Gulland, Kirao Lennox, Melita Samoilys, and Nicholas Hill. "Mosquito Net Use in an Artisanal East African Fishery." Conservation Letters 10, no. 4 (August 29, 2016): 451–59. http://dx.doi.org/10.1111/conl.12286.

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Castillo-Géniz, J. L., J. F. Márquez-Farias, M. C. Rodriguez de la Cruz, E. Cortés, and A. Cid del Prado. "The Mexican artisanal shark fishery in the Gulf of Mexico: towards a regulated fishery." Marine and Freshwater Research 49, no. 7 (1998): 611. http://dx.doi.org/10.1071/mf97120.

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Artisanal shark fisheries have been an important source of food and employment in Mexico for many years. In the Gulf of Mexico, this multispecific fishery is based on the seasonal abundance of several shark and teleost species. To obtain fishery and biological information needed to manage the fishery and conserve shark stocks, intensive monitoring of artisanal shark landings was undertaken from November 1993 to December 1994. The State of Campeche had the highest landings and effort. October 1994 had the highest monthly catch per unit effort for all species and areas combined (27.2 sharks per trip). Rhizoprionodon terraenovae (46%), Sphyrna tiburo (15%), and Carcharhinus limbatus (11%) accounted for most of the landings numerically, and the highest catch per unit effort for C. limbatus occurred late in the year as a result of increased landings attributable to an annual southward migration from USA to Mexican waters. The high proportion of neonate and juvenile sharks in gill-net catches from shallow coastal waters suggests that the main shark nursery areas are under heavy fishing pressure. In light of the heavy exploitation of shark resources, the Mexican National Fisheries Institute recommends a number of precautionary actions to avoid the collapse of this fishery. Resumen. Las pesquerías artesanales de tiburones han sido una importante fuente de alimento y empleo en México durante muchos años. En el Golfo de México, esta pesquería multiespecífica está basada en la abundancia estacional de diversas especies de tiburones y peces. Para obtener la información biológico-pesquera necesaria para manejar la pesquería y conservar los stocks de tiburones, se realizó un monitoreo de las capturas artesanales de tiburón entre noviembre de 1993 y diciembre de 1994. Campeche presentó las mayores capturas y esfuerzo. En octubre de 1994 se registraron las mayores CPUE para todas las especies y áreas combinadas (27.2 tiburones por viaje). Rhizoprionodon terraenovae (46%), Sphyrna tiburo (15%) y Carcharhinus limbatus (11%) constituyeron la mayoría de las capturas numéricamente y las mayores CPUE para C. limbatus se produjeron hacia finales de año a consecuencia del aumento de las capturas atribuible a una migración anual norte-sur desde los E.U. hacia aguas mexicanas. La alta proporción de neonatos y juveniles capturados en redes agalleras en aguas costeras someras sugiere que las principales áreas de crianza están sometidas a una alta presión de pesca. En vista de los niveles de explotación el INP recomienda diversas medidas precautorias para evitar el colapso de la pesquería.

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Demiathi, Manal, Asmae Aknaf, Jamal Settih, Hesham Awadh, Mustapha Aksissou, and Mohamed Analla. "Socioeconomic Aspects and Characteristics of Artisanal Fishing in the Marchica Lagoon (Mediterranean, Morocco)." International Journal of Social Ecology and Sustainable Development 13, no. 1 (January 2022): 1–14. http://dx.doi.org/10.4018/ijsesd.295969.

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Marchica lagoon offers very favourable conditions for practice of artisanal fishing which is the main socioeconomic activity carried out in this coastal ecosystem. However, artisanal fishing there suffers from a lack of control and management due to the absence of a data collection system on the various biological and socioeconomic aspects of this fishery. Thus, it considers serious threaten their sustainability. The main purpose of the paper to give a comprehensive account of artisanal fishing and its socioeconomic aspects in the Marchica lagoon, through a survey carried out at five sites around the lagoon. It has been found that there a low level of education among fishermen. The fishermen practiced two gears, pound net and trammel net. The economical analysis showed that the total annual gross product per boat is about 15766,80 USD, which gives an average monthly income of about 1148, 10USD par boat. Therefore, the wealth produced by these fisheries have a real impact on the quality of the fishermen live. Hence, ensure sustainable development of this fishery.

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Postuma, Felippe A., and Maria A. Gasalla. "On the relationship between squid and the environment: artisanal jigging for Loligo plei at São Sebastião Island (24°S), southeastern Brazil." ICES Journal of Marine Science 67, no. 7 (August 4, 2010): 1353–62. http://dx.doi.org/10.1093/icesjms/fsq105.

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AbstractPostuma, F. A., and Gasalla, M. A. 2010. On the relationship between squid and the environment: artisanal jigging for Loligo plei at São Sebastião Island (24°S), southeastern Brazil. – ICES Journal of Marine Science, 67: 1353–1362. The squid Loligo plei concentrates in the southeastern Brazil Bight, where it has traditionally supported small-scale fisheries around São Sebastião Island (SSI). Sea surface temperature (SST), chlorophyll-a (Chl a), windspeed, wave height, rainfall, and lunar phase are related to fishing records and to the results of a survey of local fishers to investigate how they believe environmental variables might affect catches of L. plei. Daily fishery-dependent data over the years 2005–2009 were obtained from a fishing cooperative and were matched with satellite and meteorological forecast data. Generalized linear models were used to explore the significance of environmental variables in relation to variability in catch and catch per unit effort (cpue). Squid are fished with jigs in water shallower than 20 m, generally where SST is warmer and Chl a and windspeed are lower. Cpue and monthly catches decreased from 2005 to 2008, followed by a slight increase in 2009. The correlations between fishery and environmental data relate well to fishers' oceanological knowledge, underscoring the potential of incorporating such knowledge into evaluations of the fishery.

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DOMINGUEZ, Paloma Sant'Anna, Gabriela Campos ZEINEDDINE, Matheus M. ROTUNDO, Walter BARRELLA, and Milena RAMIRES. "A pesca artesanal no Arquipélago de Fernando de Noronha (PE)." Boletim do Instituto de Pesca 42, no. 1 (March 5, 2016): 241–51. http://dx.doi.org/10.20950/1678-2305.2016v42n1p241.

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DOMINGUEZ, Paloma Sant'Anna, Gabriela Campos ZEINEDDINE, Matheus M. ROTUNDO, Walter BARRELLA, and Milena RAMIRES. "A pesca artesanal no Arquipélago de Fernando de Noronha (PE)." Boletim do Instituto de Pesca 42, no. 1 (March 30, 2016): 241–51. http://dx.doi.org/10.20950/1678-2305.2016v42n1p246.

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Bentes, Bianca, Victoria Judith Isaac, Roberto Vilhena do Espírito-Santo, Thierry Frédou, Morgana Carvalho de Almeida, Keila Renata Moreira Mourão, and Flávia Lucena Frédou. "Multidisciplinary approach to identification of fishery production systems on the northern coast of Brazil." Biota Neotropica 12, no. 1 (March 2012): 81–92. http://dx.doi.org/10.1590/s1676-06032012000100006.

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Artisanal fishing on the northern coast of Brazil is characterized by a set of different fishery modalities. Using a multidisciplinary approach, 20 fishery production systems were identified, with distinct characteristics regarding technology and purpose. The characteristics of each system were classified into five dimensions (ecological, economic, social, technological and political). Multidimensional scaling revealed that some of these 20 systems have greater similarities. Thus, a total of 10 groups were identified.

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Alves, Lázaro Dias, Ana Paula Madeira Di Beneditto, and Camilah Antunes Zappes. "Ethnooceanography of tides in the artisanal fishery in Southeastern Brazil: Use of traditional knowledge on the elaboration of the strategies for artisanal fishery." Applied Geography 110 (September 2019): 102044. http://dx.doi.org/10.1016/j.apgeog.2019.102044.

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Mora, Paulo, Guillermo Figueroa-Muñoz, Luis Cubillos, and Poliana Strange-Olate. "A data-limited approach to determine the status of the artisanal fishery of sea silverside in southern Chile." Marine and Fishery Sciences (MAFIS) 35, no. 2 (April 30, 2022): 275–98. http://dx.doi.org/10.47193/mafis.3522022010508.

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Artisanal fisheries are essential, but for most the status of the stock supporting the fishing activity remains unknown due to lack of data and difficult access to sampling. For example, the artisanal fishery of sea silverside Odontesthes (Austromenidia) regia, in the Los Lagos administrative region of Chile, requires a data-limited approach to determine its status because the fishery administration has not invested in its monitoring. The approach consisted of estimating the spawning potential ratio (SPR) from length-frequency data collected in 2019 using length-based spawning potential ratio (LBSPR) and biological reference points using the only-catch optimized method (OCOM) to catch data covering from 1960 to 2020. In addition, five age-structured sea silverside populations were simulated considering uncertainty in recruitment and utilizing life-history parameters estimated by FishLife. According to LBSPR, the SPR was 0.58 (95% confidence intervals: 0.5-0.7), suggesting a fully exploited fishery status. The OCOM result was inconsistent with the life-history parameters and was discarded as a valid sea silverside stock assessment. The age-structured population simulations indicated evidence of a reduction in the spawning stock biomass close to 75% of the unexploited condition in 1960. Thus, the underexploited status reached a probability close to 49.4%, and the fully exploited status was 41.2%. The framework for a data-limited stock-assessment approach and results obtained here for the sea silverside are starting essential steps that may be emulated in other artisanal data-limited fisheries.

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Kar Soon, Tan, and Julian Ransangan. "Dredging-induced shell damages to hard clam (Meretrix meretrix): a Malaysian case study." Aquatic Living Resources 32 (December 18, 2018): 1. http://dx.doi.org/10.1051/alr/2018025.

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The hard clam (Meretrix meretrix) is a popular edible shellfish in South and Southeast Asia, being heavily exploited by hand dredging in Marudu Bay, Malaysia. The current study was performed to evaluate the shell damages caused by this artisanal dredging gear. Samplings were conducted in triplicates at two sites using both hand dredging and hand collecting (control) sampling methods. The shell length and total weight, damage areas and breakage patterns of each clam were recorded. A questionnaire survey was conducted with local bivalve harvesters to gather information on the fishing pressure in Marudu Bay. Results revealed that the efficiency (fishing yield) of hand dredging gear was three times higher than hand collecting. However, hand dredging gear causes lethal shell damages to small hard clams (<3cm in shell length). Hard clam harvesting is the main occupation of most fishermen in Kg. Popok, but most of them do not comply with the minimum harvesting size established by the fishery department. Moreover, most of the stakeholders are not aware of the negative impacts of hand dredging to the sustainability of the hard clam fishery in Marudu Bay. Therefore, organizing more awareness programs combined with introducing community-based fishery management are highly recommended to promote the sustainability of this artisanal fishery.

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Nunes, Jorge Luiz Silva, and Nivaldo Magalhães Piorski. "A dorsal fold in Gymnura micrura (Bloch and Scheneider, 1801) (Chondrichthyes: Gymnuridae)." Brazilian Archives of Biology and Technology 52, no. 2 (April 2009): 479–82. http://dx.doi.org/10.1590/s1516-89132009000200027.

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This paper reports a dorsal fold which is a membranous structure located on the tail of two juvenile butterfly rays, Gymnura micrura (Bloch & Scheneider, 1801), caught through artisanal fishery in the shallow waters of Maranhão State (Brazil).

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AKPALU, WISDOM. "Fishing regulations, individual discount rate, and fisherman behaviour in a developing country fishery." Environment and Development Economics 13, no. 5 (October 2008): 591–606. http://dx.doi.org/10.1017/s1355770x08004439.

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ABSTRACTStudies of compliance with fishing regulations have been based on fishery crimes where the offender faces a one-period decision problem of maximizing an expected utility. Moreover, the returns from the crimes are uncertain because the offender may lose them if caught. This paper extends these models by considering a fishery crime that generates a flow of returns until the offender is caught and then punished. Consequently, it incorporates into the existing model the influence of dynamic deterrence in which the discount rate affects violation levels. The predictions of the model are tested on data from an artisanal fishery in Ghana.

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Machado, Alexandre M. S., Eduardo L. Hettwer Giehl, Luiza Pacheco Fernandes, Simon N. Ingram, and Fábio G. Daura-Jorge. "Alternative data sources can fill the gaps in data-poor fisheries." ICES Journal of Marine Science 78, no. 5 (April 16, 2021): 1663–71. http://dx.doi.org/10.1093/icesjms/fsab074.

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Abstract Assessing fish stocks harvested by small-scale fisheries is challenging. The lack of official fisheries data constrains the proper management of such fisheries. Thus, alternative sources of information are crucial to enrich data-poor fisheries. Here, we evaluated different sources of data for the mullet (Mugil liza) fishery, one of the most important but overexploited fisheries in Brazil. We gathered three alternative sources of catch data by artisanal fisheries: 14 years of self-reported catches by artisanal fishers across 24 municipalities; 16 years of catches by traditional beach seines mined from news outlets; and 13 years from a single community monitoring their beach seine catches. We tested whether alternative data sources follow the same trends of landing reports from systematic, official monitoring of the industrial fleet. We fitted Bayesian time-series models to test if environmental changes and stock abundance can predict these data. We found that only self-reported catches matched the official reporting trends, thereby improving our understanding of changes in the mullet stock. These findings reveal that self-reported catches by fishers provide reliable additional data useful for management. Self-reporting data are cost-effective, deals with the complexity of small-scale fisheries, and welcomes fishers as key stakeholders in management practices.

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Molloy, PP, JD Reynolds, MJG Gage, and IM Côté. "Effects of an artisanal fishery on non-spawning grouper populations." Marine Ecology Progress Series 392 (October 19, 2009): 253–62. http://dx.doi.org/10.3354/meps08236.

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Marquez, Raquel. "Elasmobranch species in the artisanal fishery of Sucre State, Venezuela." Ciencias Marinas 45, no. 4 (December 20, 2019): 181–88. http://dx.doi.org/10.7773/cm.v45i4.3018.

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Segura-García, Iris, Thu Yain Tun, and Stephen J. Box. "Genetic characterization of the artisanal mud crab fishery in Myanmar." PLOS ONE 13, no. 9 (September 28, 2018): e0204905. http://dx.doi.org/10.1371/journal.pone.0204905.

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Halafo, José S., Robert E. Hecky, and William D. Taylor. "The artisanal fishery of Metangula, Lake Malawi/Niassa, East Africa." African Journal of Aquatic Science 29, no. 1 (January 2004): 83–90. http://dx.doi.org/10.2989/16085910409503795.

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Bizzarro, Joseph J., Wade D. Smith, J. Fernando Márquez-Farías, John Tyminski, and Robert E. Hueter. "Temporal variation in the artisanal elasmobranch fishery of Sonora, Mexico." Fisheries Research 97, no. 1-2 (April 2009): 103–17. http://dx.doi.org/10.1016/j.fishres.2009.01.009.

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Silva-Júnior, Carlos Antonio Beserra, Alex Souza Lira, Leandro Nolé Eduardo, Andrea Pontes Viana, Flávia Lucena-Frédou, and Thierry Frédou. "Ichthyofauna bycatch of the artisanal fishery of penaeid shrimps in Pernambuco, Northeastern Brazil." Boletim do Instituto de Pesca 45, no. 1 (January 5, 2019): 435. http://dx.doi.org/10.20950/1678-2305.2019.45.1.435.

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Gracia, A. "White shrimp (Penaeus setiferus) recruitment overfishing." Marine and Freshwater Research 47, no. 1 (1996): 59. http://dx.doi.org/10.1071/mf9960059.

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White shrimp, Penaeus setiferus, is one of the major species exploited in the Gulf of Mexico. Annual catches reached a peak of 1200-2000 t during 1970-80. In the following years, there was a marked decline that took the fishery to less than one-fifth of its highest production levels. Decline was associated first with decreasing fishing power of the fleet and later with the establishment of a new artisanal drift-net fishery. The artisanal fishery has the following characteristics: it acts selectively on spawners older than eight months, its fishing effort increases during spawning periods when white shrimp school and are more vulnerable to drift-nets, and it has displayed an explosive growth rate due to the high profitability. Previous evidence of a spawning stock-recruitment relationship for white shrimp suggests that a recruitment failure had taken place. The relationship between spawning and recruitment, based on the main cohorts of the two annual generations, exhibited a negative tendency that drove the stock down to near-critical spawner biomasses. Environmental influences on recruitment, although important for annual variations, are unlikely to be responsible for this decline. Decline in yield may be attributable to recruitment overfishing, as spawning stock was reduced to almost 8% of virgin biomass. White shrimp have a high resilience to overfishing, as the stock displayed a quick recovery after the artisanal fishing effort decreased. Managing white shrimp with a precautionary approach requires the maintenance of spawning stock at more than 17-20% of virgin biomass.

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Journal articles on the topic 'Artisanal fishery'

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