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Journal articles on the topic 'Effect of fishing on'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2024

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1

Aida, Gilang Rusrita, Rhochmad Wahyu Illahi, and Tyas Dita Pramesthy. "Analisys of The Effect of Fisherman, Fishing Boat, and Fishery Ports on Catching Fisheries Production in East Java Province." Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan 5, no. 1 (2023): 35–44. http://dx.doi.org/10.47685/barakuda45.v5i1.338.

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The importance of the fisheries sector for East Java Province can be seen from the high capture fisheries production compared to other provinces di Indonesia. In 2021, East Java Province is listed as the province with the highest capture fisheries production in Indonesia. This is suspected to be affected by several factors i.e the numberi of fishermen, fishing vessels, and fishing ports, so analysis is needed to determinei the effect of these factors on capture fisheries in East Java. The aim of this studyi was to determine the effect of the amount of fishermen, fishing boats, and fishing port

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PAN, QIUHUI, MENGPING LI, MINGFENG HE, and XIAOJIA MU. "THE EFFECT OF "CLOSED FISHING" IN CHINA." International Journal of Modern Physics C 18, no. 03 (2007): 391–98. http://dx.doi.org/10.1142/s0129183107010504.

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A fishing model is presented in this paper. A year is divided into four seasons on the basis of the Penna model. We define the rules of death, reproduction, fishing and so on for fish. And "closed fishing" in China is introduced in this model. Then we discuss the population size of fish and the fishing products in the case of "closed fishing" or not. At last the conclusion is obtained that the policy will be significant if fishing intensity is in a certain range. And reducing fishing intensity is essential policy, and "closed fishing" is just an accessorial policy.

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Zhou, Yanheng, and Zhineng Hu. "The Preventive Effect of Outdoor Recreational Fishing on Anxiety Disorder." E3S Web of Conferences 409 (2023): 06001. http://dx.doi.org/10.1051/e3sconf/202340906001.

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Background: Anxiety disorder, a severe global public health problem, has caused many adverse effects. Effectively preventing anxiety disorder is very important. This paper chose recreational fishing as an intervention measure to explore its effect on preventing anxiety disorder. Methods: The prevention effect of recreational fishing on anxiety disorder and the heterogeneity of this effect were analyzed through the ordinal logistic regression model. The robustness of the main results was tested through the multiple linear regression models. Results: “Fishing” significantly affected the anxiety

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Thorlindsson, Thorolfur. "The Skipper Effect in the Icelandic Herring Fishery." Human Organization 47, no. 3 (1988): 199–212. http://dx.doi.org/10.17730/humo.47.3.1584t42x24702552.

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The centrality of the skipper to the economic and social organization of fishing is based on the assumption that he plays an important role in fishing success. This crucial assumption has recently been hotly debated in the social science literature in various contexts. In this study an attempt is made to estimate the role of the skipper in fishing success. The study is based on data from the Icelandic summer herring fishery from the years 1959, 1960 and 1961. The analysis of the data shows a correlation ranging from .59 to .70 for the skippers' catches between fishing seasons. When relevant va

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Ralston, Stephen, and Michael R. O’Farrell. "Spatial variation in fishing intensity and its effect on yield." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 4 (2008): 588–99. http://dx.doi.org/10.1139/f07-174.

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Fishing mortality is rarely, if ever, evenly distributed over space, yet this is a common assumption of many fisheries models. To evaluate the effect of spatial heterogeneity in fishing mortality on yield, we constructed age-structured models that allowed for differing levels of fishing in three regions within the boundaries of a stock and explored alternative assumptions about the life stage in which density-dependent compensation operates. If the fishing mortality rate (F) is not excessive (i.e., F ≤ FMSY defined for the spatially homogeneous case; MSY, maximum sustainable yield), simulation

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Soeprijadi, Liliek, Endang Yuli, Edi Susilo, and Rudianto Rudianto. "Model Joint Business Group Based Knowledge for Fishermen Community Empowerment Strategies (Case Study of Business Diversification on Solid Capture Region Cirebon City)." Business and Management Horizons 1, no. 1 (2013): 96. http://dx.doi.org/10.5296/bmh.v1i1.3485.

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The purpose of this study was to analyze the effect of public capital fishing, fish processing business and micro-business skills to the programs and activities of the agency joint venture (KUB) coastal fishing town of Cirebon: to analyze the effect of public capital fishing, fish processing business and micro-enterprise skills through the agency the joint venture (KUB) fisherman exchange coastal fishing town of Cirebon: to analyze the effect of public capital fishing, fish processing business and micro-enterprise skills through a joint venture group institutions (KUB) and exchange fishing to

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7

Cheon, Deok Hee, and Young Kwan Lee. "Effects of Fishing Village Tourism Motivation on Destination Image, Traveler Satisfaction and Loyalty." Convergence Tourism Contents Society 9, no. 2 (2023): 191–204. http://dx.doi.org/10.22556/jctc.2023.9.2.191.

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Purpose Fishing village tourism is a form of tourism that has been newly started according to the economic revitalization of underdeveloped fishing villages, the increase in leisure time and income of tourists, and the diversification of tourism needs. In order to maintain sustainable fishing village tourism, it is necessary to identify what motives tourists participate in fishing village tourism and to empirically study the effects of these motivation factors on destination image and tourist satisfaction and loyalty. Methods A survey was conducted on tourists who visited Daeyado, Yongsh

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8

Marchal, Paul, Bo Andersen, David Bromley, et al. "Improving the definition of fishing effort for important European fleets by accounting for the skipper effect." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 3 (2006): 510–33. http://dx.doi.org/10.1139/f05-238.

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The scope of this paper is to quantify, for a wide selection of European fisheries, fishing tactics and strategies and to evaluate the benefits of adjusting the definition of fishing effort using these elements. Fishing tactics and strategies were identified by métiers choices and a series of indices. These indices have been derived to reflect shifts in tactics (within a fishing trip) and in strategies (within a year). The ShannonWiener spatial diversity indices of fishing tactics (FT_SW) and strategies (YE_SW) had the greatest impact on catch rates. In particular, FT_SW was always negatively

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9

Lee, Sangheon, Yukio Akiba, Tateki Kurosu, and Masamori Iida. "Effect of Ag2O on fishing effect of bipbsrcacuo superconductor." Electronics and Communications in Japan (Part II: Electronics) 76, no. 8 (1993): 99–109. http://dx.doi.org/10.1002/ecjb.4420760810.

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10

Rochet, Marie-Joëlle, and Verena M. Trenkel. "Which community indicators can measure the impact of fishing? A review and proposals." Canadian Journal of Fisheries and Aquatic Sciences 60, no. 1 (2003): 86–99. http://dx.doi.org/10.1139/f02-164.

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Population and community descriptors that might be used as indicators of the impact of fishing are reviewed. The criteria used for the evaluation of these indicators are meaning, expected effect of fishing, exclusiveness to fishing effects, and measurability. Population indicators such as total mortality rate, exploitation rate, or average length are the most operational indicators because their meaning is clear and the expected effect of fishing on them is well understood so that reference points can be set. On the other hand, indicators based on the composition of species assemblages such as

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11

Metzner, Rebecca. "Fishing Aspirations and Fishing Capacity: Two Key Management Issues." International Journal of Marine and Coastal Law 20, no. 3 (2005): 459–78. http://dx.doi.org/10.1163/157180805775098603.

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AbstractThis article explores a variety of topics related to fishing aspirations and capacity management—two key components of effective management of high seas fisheries. Because of the profound influence of capacity management and capacity reduction measures on the way participants give effect to their aspirations and conduct their fishing operations, the article details the critical linkages between established capacity management options and their respective abilities to address capacity concerns, affect fishing behaviour, and accommodate fishing aspirations. The article begins with a disc

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Amin, Sajjad, Chuang Li, Yousaf Ali Khan, and Amina Bibi. "Fishing grounds footprint and economic freedom indexes: Evidence from Asia-Pacific." PLOS ONE 17, no. 4 (2022): e0263872. http://dx.doi.org/10.1371/journal.pone.0263872.

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Environmental challenges are as wide as the universe so that its different dimensions can be the subject of diverse studies. In this research, using 17 data from Asia-Pacific during the period 2000 to 2017, an attempt has been made to investigate the economic factors responsible for the ecological footprint in the fishing sector. The main contribution of the present study is to investigate the effects of nine economic freedom indicators along with other control variables on environmental pressure on the status of fishery resources. Based on the results, the Kuznets curve hypothesis was confirm

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Labropoulou, M., C. D. Maravelias, and C. Papaconstantinou. "Factors affecting commercial trawl fleet landings in a multispecies fishery." Journal of the Marine Biological Association of the United Kingdom 83, no. 1 (2003): 205–15. http://dx.doi.org/10.1017/s0025315403006982h.

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Retained catches of trawl fleet in Chalkis fishing port-market, Greece, were analysed using generalized linear models (GLMs) in an attempt to identify factors that influence the total landings of the groundfish fisheries. Main effects in the model included a factor for vessel tonnage that determined fishing power, as well as factors for month and fishing area. Covariates examined were all found to have a significant effect on the retained catches, with month and vessel capacity alone explaining 38% and 30% respectively of the total variation of the data. Significant interactions observed indic

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14

Ahnesjö, Jonas, and Tom Danielsson. "Organized recreational fishing in school, knowledge about nature and influence on outdoor recreation habits." Journal of Outdoor and Environmental Education 23, no. 3 (2020): 261–73. http://dx.doi.org/10.1007/s42322-020-00061-8.

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Abstract In this study we have investigated the effectiveness of a one day school-based intervention with recreational fishing (in Swedish called Klassdraget) in increasing environmental awareness, interest in nature and recreational fishing in pupils aged between 8 and 12. Our results suggest a weak positive association between exposure to natural environments in a recreational fishing context and interest in nature and recreational fishing. We found the intervention to have no effect on the frequency of fishing, interest in fishing more, or number of visits in nature during spare time. Knowl

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15

Gaichas, Sarah K., Garrett Odell, Kerim Y. Aydin, and Robert C. Francis. "Beyond the defaults: functional response parameter space and ecosystem-level fishing thresholds in dynamic food web model simulations." Canadian Journal of Fisheries and Aquatic Sciences 69, no. 12 (2012): 2077–94. http://dx.doi.org/10.1139/f2012-099.

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Dynamic food web models are increasingly used to investigate the ecosystem effects of fishing; however, key unknown functional response parameters describing predator-prey interactions strongly influence model behavior. We explored functional response parameter uncertainty and its effect on fishing simulation results using a dynamic food web model of the Gulf of Alaska (GOA) with14 fishing fleets, 104 consumer groups, four primary producer groups, and five detritus pools. After generating millions of potential ecosystems with randomly selected functional response parameters, we assigned groups

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16

Pfeiffer, Lisa, and Trevor Gratz. "The effect of rights-based fisheries management on risk taking and fishing safety." Proceedings of the National Academy of Sciences 113, no. 10 (2016): 2615–20. http://dx.doi.org/10.1073/pnas.1509456113.

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Commercial fishing is a dangerous occupation despite decades of regulatory initiatives aimed at making it safer. We posit that rights-based fisheries management (the individual allocation of fishing quota to vessels or fishing entities, also called catch shares) can improve safety by solving many of the problems associated with the competitive race to fish experienced in fisheries around the world. The competitive nature of such fisheries results in risky behavior such as fishing in poor weather, overloading vessels with fishing gear, and neglecting maintenance. Although not necessarily intend

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17

Gulland, J. A. "The effect of fishing on community structure." South African Journal of Marine Science 5, no. 1 (1987): 839–49. http://dx.doi.org/10.2989/025776187784522225.

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18

Golam Rabbani, Md, Md Akhtaruzzaman Khan, M. Serajul Islam, and Rozina Yeasmin Lucky. "Technical Efficiency of the Setbag Net Fishery in Bangladesh: An Application of a Stochastic Production Frontier Model." Agriculturists 15, no. 2 (2018): 59–65. http://dx.doi.org/10.3329/agric.v15i2.35465.

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A study was conducted to examine the technical efficiency for Setbag net fishing boats operated in the year 2014. A total of 100 samples of Setbag net fishing boats were selected, of which 40 were from Cox’s Bazar, 40 were from Chittagong and 20 were from Bagerhat. Stochastic frontier (with technical inefficiency effect) model was specified and estimated. Results have shown that the estimated mean technical efficiency of Setbag net fishing boats is 84 percent. The efficiency of Setbag net fishing boat was positively associated with total cost, while the number of nets were negatively related t

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19

Alekhnovich, A. V. "Populations of long-clawed crayfish Pontastacus leptodactylus: Effect of commercial fishing on the size and age structure." Vestnik MGTU 26, no. 2 (2023): 93–98. http://dx.doi.org/10.21443/1560-9278-2023-26-2-93-98.

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Fishing affects the population of crayfish, while it changes the size and age characteristics. The size and age parameters of two populations of the narrow-clawed crayfish Pontastacus leptodactylus in the Loktyshi (Brest Region) and Krasnoslobodskoe (Minsk Region) reservoirs in Belarus have been compared. The Krasnoslobodskoye reservoir is intensively exploited with an annual catch of 3–4 tons of crayfish. There is no commercial fishing in the Loktyshi reservoir. Studies show that the average size of individuals in an intensively exploited population is smaller in comparison with a population

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20

Aspen, R. J., S. Vardy, R. G. Perkins, I. R. Davidson, R. Bates, and D. M. Paterson. "The effects of clam fishing on the properties of surface sediments in the lagoon of Venice, Italy." Hydrology and Earth System Sciences 8, no. 2 (2004): 160–69. http://dx.doi.org/10.5194/hess-8-160-2004.

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Abstract. Harvesting of clams(Tapes philippinarum) has important socio-economic and environmental implications for the Venice lagoon area, Italy. Clam harvesting disrupts the structure of benthic communities but the effects upon sediment stability and surface structure remain unclear. The effect of clam fishing on the sediment properties of the lagoon bed was investigated at two different sites, a heavily fished site (San Angelo) and an infrequently fished site (San Giaccomo). Both sites were assessed for immediate impacts of fishing, using indicators of biogenic sediment stabilisation. Sample

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Storero, Lorena P., Maite A. Narvarte, and Raúl A. González. "Marine Protected Areas: reserve effect or natural variability? The Patagonian octopus case." Journal of the Marine Biological Association of the United Kingdom 93, no. 1 (2012): 259–66. http://dx.doi.org/10.1017/s0025315412000525.

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Population characteristics can be influenced by specific factors of the habitat and the natural variability of populations can confuse the effect related to protected environments. This study compares the demographic characteristics of Octopus tehuelchus in three coastal environments: two Marine Protected Areas (San Antonio Bay (SAB) and Islote Lobos (IL)) and a traditional fishing zone (El Fuerte (EF)). Weight–frequency distributions, sex-ratio and recruitment were monthly compared between the three intertidal zones. Octopus tehuelchus was smaller in IL, where fishing intensity is lower or nu

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Prayogi, Putu Agus, and Ni Komang Julyanti Paramita Sari. "The Influence of Personal Selling and Promotion Through Social Media on Tourists' Decisions in Buying Fishing Tour Packages in the Coastal Areas of Bali." Jurnal Manajemen Pelayanan Hotel 7, no. 1 (2023): 300. http://dx.doi.org/10.37484/jmph.070115.

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The purpose of this study was to analyze the effect of promotion on social media and personal selling on guests' decisions in buying fishing tour packages in the coastal areas of Bali. This study used the purposive sampling method to analyze it, samples from guests who had used fishing tour packages in the coastal areas of Bali. Data was taken from 60 customers. It is analyzed with Regression Analysis Technic, it has been validated, reliability, and classical assumptions. Research shows that 1) Promotion on social media has a positive and significant effect on purchasing fishing tour packages

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Shen, Haixue, Martin W. Dorn, Vidar Wespestad, and Terrance J. Quinn. "Schooling pattern of eastern Bering Sea walleye pollock and its effect on fishing behaviour." ICES Journal of Marine Science 66, no. 6 (2009): 1284–88. http://dx.doi.org/10.1093/icesjms/fsp071.

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Abstract Shen, H., Dorn, M. W., Wespestad, V., and Quinn, T. J. 2009. Schooling pattern of eastern Bering Sea walleye pollock and its effect on fishing behaviour. – ICES Journal of Marine Science, 66: 1284–1288 Walleye pollock (Theragra chalcogramma) form persistent midwater and near-bottom schools in the daytime during the winter spawning season in the eastern Bering Sea (EBS). Two spawning areas in the EBS, north of Unimak Island and near the Pribilof Islands, are the main fishing grounds. To study the schooling pattern of pollock and its effect on fishing behaviour on these two fishing grou

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Dunlop, Erin S., Daisuke Goto, and Donald A. Jackson. "Fishing down then up the food web of an invaded lake." Proceedings of the National Academy of Sciences 116, no. 40 (2019): 19995–20001. http://dx.doi.org/10.1073/pnas.1908272116.

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Analysis of commercial catches reveals a serial depletion of some oceanic fish stocks over time, resulting in fisheries focusing on increasingly smaller species closer to the base of the food chain. This effect, described as fishing down the marine food web, is observed when the trophic level of the catch declines over time, raising concerns about the ecosystem impacts of fishing. Freshwater systems also experience harvest, yet do not appear to commonly show the same fishing down response perhaps because time series are too short to witness early depletions, fishing is often recreational, or o

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Marçalo, A., J. Araújo, P. PousãoFerreira, K. Erzini, and Y. Stratoudakis. "Effect of simulated purse seine fishing on acclimated sardines and post-fishing interactions with predators." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 150, no. 3 (2008): S95—S96. http://dx.doi.org/10.1016/j.cbpa.2008.04.187.

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Tua, Amry Mangihut. "THE DROWNING POLICY THE FOREIGN FISHING VESSELS OF ILLEGAL FISHINGBY INDONESIA GOVERNMENT IN INTERNATIONAL LAW PERSPECTIVE." Legal Standing : Jurnal Ilmu Hukum 3, no. 2 (2019): 32. http://dx.doi.org/10.24269/ls.v3i2.1918.

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The drowning of foreign fishing vessels of illegal fishing actors in Indonesia teritory is one of law enforcement efforts to against the eradication of illegal fishing and to enforce the sovereignty of the territory of the Republic of Indonesia. It is a special act mandated in Article 69 paragraph (4) of Law No. 45 of 2009 on fisheries. This sinking policy invites controversy from neighboring countries because it is considered as an action that violates the principle of peaceful dispute resolution and is not regulated in international law. Indonesia keep continues to enforce this policy becaus

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Pfeiffer, Lisa, and Alan C. Haynie. "The effect of decreasing seasonal sea-ice cover on the winter Bering Sea pollock fishery." ICES Journal of Marine Science 69, no. 7 (2012): 1148–59. http://dx.doi.org/10.1093/icesjms/fss097.

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Abstract Pfeiffer, L., and Haynie, A. C. 2012. The effect of decreasing seasonal sea-ice cover on the winter Bering Sea pollock fishery. – ICES Journal of Marine Science, 69: . The winter fishing season for eastern Bering Sea pollock (Theragra chalcogramma) is during the period of maximum seasonal sea-ice extent, but harvesters avoid fishing in ice-covered waters. Global climate models predict a 40% reduction in winter ice cover by 2050, with potential implications for the costs incurred by vessels travelling to and around their fishing grounds and the value of their catch. Additionally, it ma

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Yulinda, E., K. Supian, and M. Saad. "The Effect of Trust on the Fishing Industry Supply Chain Performance in Rokan Hilir Regency Riau Province, Indonesia." IOP Conference Series: Earth and Environmental Science 934, no. 1 (2021): 012044. http://dx.doi.org/10.1088/1755-1315/934/1/012044.

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Abstract This research was conducted in August-October 2020 in Rokan Hilir Regency, the largest central of the fishing industry in Riau Province, Indonesia. The research objective to analyse the effect of trust on the fishing industry supply chain performance in the regency. Respondents were set 270 fishing companies based on the Slovin formula. They were taken purposively in four fishing centres, namely Panipahan (Pasir Limau Kapas district), Bagansiapiapi (Bangko), Kubu Babussalam, and Sinaboi. Collecting data using a closed questionnaire, containing a number of statements measured by a 7-po

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van Hoof, Luc. "Design or pragmatic evolution: applying ITQs in EU fisheries management." ICES Journal of Marine Science 70, no. 2 (2013): 462–70. http://dx.doi.org/10.1093/icesjms/fss189.

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Abstract Van Hoof, L. 2013. Design or pragmatic evolution: applying ITQs in EU fisheries management. – ICES Journal of Marine Science, 70: 462–470. Among the proposals for the 2012 revision of the EU Common Fisheries Policy, a strong case is made for the introduction of a system of rights-based management. The EU perceives individual fishing concessions as an important instrument for capacity management. We will use the introduction of individual tradable quotas in the management of the Dutch North Sea beam trawl fisheries as a case for exploring the effect of the introduction of such an instr

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Neves, João Bernardo, Filipe Martinho, and Miguel Ângelo Pardal. "Effect of illegal glass eel (Anguilla anguilla) fishery on estuarine fish stocks: a case study in the Mondego Estuary, Portugal." Marine and Freshwater Research 69, no. 11 (2018): 1692. http://dx.doi.org/10.1071/mf17364.

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Illegal fishing is a critical activity that affects a wide range of species, leading to a decline in total abundance and the overexploitation of target and non-target species. In Portugal, despite fishing for eel juveniles not being allowed, a substantial amount of illegal fishing takes place during the migratory season (October–March). The aim of this study was to investigate the effects of glass eel fishing in the Mondego estuary on target and non-target species. Samples were collected between November 2011 and March 2013 during the autumn and winter (dry and regular respectively with regard

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Huda, Samsul, Siti Naviah, and Natasya Habibah. "Prayang Innovation Technology on Capture Results." Jurnal Perikanan dan Kelautan 25, no. 3 (2020): 179. http://dx.doi.org/10.31258/jpk.25.3.179-183.

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Prayang is traditional fishing gear, a prohibition on the use of cantrang fishing gear by the Ministry of Maritime Affairs and Fisheries (KKP) requires an alternative replacement fishing gear, considering that the condition of the Java sea waters is already overfished. The study aims to determine the effect of using different color lights on prayang fishing gear on catches. The research method is an experiment by applying "light fishing" technology. The initial stage of the study was the use of lighting aids with different colors. Based on the results of statistical tests the lamp color treatm

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Zhang, Jie, Donlin Fan, Hongchang He, Bin Xiao, Yuankang Xiong, and Jinke Shi. "Forecasting Albacore (Thunnus alalunga) Fishing Grounds in the South Pacific Based on Machine Learning Algorithms and Ensemble Learning Model." Applied Sciences 13, no. 9 (2023): 5485. http://dx.doi.org/10.3390/app13095485.

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To achieve high-precision forecasting of different grades of albacore fishing grounds in the South Pacific Ocean, we used albacore fishing data and marine environmental factors data from 2009 to 2019 as data sources. An ensemble learning model (ELM) for albacore fishing grounds forecasting was constructed based on six machine learning algorithms. The overall accuracy (ACC), fishing ground forecast precision (P) and recall (R) were used as model accuracy evaluation metrics, to compare and analyze the accuracy of different machine learning algorithms for fishing grounds forecasting. We also expl

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Takashina, Nao. "On the spillover effect and optimal size of marine reserves for sustainable fishing yields." PeerJ 8 (August 25, 2020): e9798. http://dx.doi.org/10.7717/peerj.9798.

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Marine reserves are an essential component of modern fishery management. Marine reserves, which represent a management tradeoff between harvesting and conservation, are fundamental to maintenance of fisheries. Finding optimal reserve sizes that improve fishing yields is not only of theoretical interest, but also of practical importance to facilitate decision making. Also, since the migratory behavior of some species influences the spillover effect of a marine reserve, this is a key consideration when assessing performance of marine reserves. The relationship between optimal reserve size and mi

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Kang, Seok-Kyu. "Economic Effect of Mongsanpo Fishing Village Tourism Festival." Journal of Fisheries Business Administration 53, no. 3 (2022): 17–26. http://dx.doi.org/10.12939/fba.2022.53.3.017.

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Kaiser, M. J., H. Hinz, R. M. Callaway, A. Nall, and C. L. Biles. "Resource degradation: a subtle effect of bottom fishing." Marine Biology 146, no. 2 (2004): 401–8. http://dx.doi.org/10.1007/s00227-004-1440-5.

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Shepperson, Jennifer L., Niels T. Hintzen, Claire L. Szostek, Ewen Bell, Lee G. Murray, and Michel J. Kaiser. "A comparison of VMS and AIS data: the effect of data coverage and vessel position recording frequency on estimates of fishing footprints." ICES Journal of Marine Science 75, no. 3 (2017): 988–98. http://dx.doi.org/10.1093/icesjms/fsx230.

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Abstract Understanding the distribution of fishing activity is fundamental to quantifying its impact on the seabed. Vessel monitoring system (VMS) data provides a means to understand the footprint (extent and intensity) of fishing activity. Automatic Identification System (AIS) data could offer a higher resolution alternative to VMS data, but differences in coverage and interpretation need to be better understood. VMS and AIS data were compared for individual scallop fishing vessels. There were substantial gaps in the AIS data coverage; AIS data only captured 26% of the time spent fishing comp

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Zhou, Shijie, Ross M. Daley, Michael Fuller, Cathy M. Bulman, and Alistair J. Hobday. "A data-limited method for assessing cumulative fishing risk on bycatch." ICES Journal of Marine Science 76, no. 4 (2019): 837–47. http://dx.doi.org/10.1093/icesjms/fsy206.

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Abstract To assess fishing effects on data-poor species, impact can be derived from spatial overlap between species distribution and fishing effort and gear catchability. Here, we enhance the existing sustainability assessment for fishing effect method by estimating gear efficiency and heterogeneous density from sporadic catch data. We apply the method to two chondrichthyan bycatch species, Bight Skate and Draughtboard Shark in Australia, to assess cumulative fishing mortality (Fcum) from multiple fisheries. Gear efficiency is estimated from a Bayesian mixture distribution model and fish densi

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Prasetyo, Andhika Prima, and Rudy Masuswo Purwoko. "INTER-SPECIFIC COMPETITION AND FISHING EFFECT TO POPULATION DYNAMIC OF BALI SARDINE (SARDINELLA LEMURU)." Indonesian Fisheries Research Journal 22, no. 2 (2017): 85. http://dx.doi.org/10.15578/ifrj.22.2.2016.85-90.

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Stock-recruitment relationship of Bali sardine was investigated based on Beverton-Holt model by assuming inter-specific competition. Model is modified to incorporate the effect of fishing pressure that is density-independent to population dynamic by developing scenario fishing on adult and/or juvenile population. The results show that harvested adult the dramatic decline of recruitment supply. However, harvested juvenile is led to the positive response to population size, as an increase in fishing mortality rate will reduce competition mortality rate. Precautionary approach required by conside

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OLU, Joshua, Anuoluwapo OLAPEJO, Damilare A. ADETUNJI, and Olusegun A. ADETUNJI. "Assessment of Climate Change Variables Impact on Fishing Livelihood of some Fishing Communities in Badagry Local Government Area of Lagos, Nigeria." Environmental Studies Journal 2, no. 1 (2023): 13–32. http://dx.doi.org/10.36108/esj/3202.20.0120.

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This study examined the impact of climate change variables on fishing livelihood in some communities in Badagry Local Government Area of Lagos State, Nigeria. It utilized a well-structured questionnaire that was distributed among the 306 respondents randomly to inquire into the demographic, fishing activities, perception on climate change and adaptation mechanism of respondents to climate change. It was found that 86.3% of the respondents were familiar with the climate change variables such as rainfall, windfall, drought etc. Also, 92.5%, and 85.8% of the respondents claimed to know that errat

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Dowling, Natalie A., Stephen J. Hall, and Richard McGarvey. "Simulations of random fishing behaviour as an independent validation for the effect of active targeting of greenlip abalone (Haliotis laevigata) aggregations." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 2 (2004): 260–72. http://dx.doi.org/10.1139/f03-164.

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Although active targeting of abalone aggregations is documented for various species, its impact on large aggregations is poorly understood. As large aggregations make the greatest contribution to reproductive success, yet are vulnerable to exploitation, it is important to understand how targeted fishing impacts aggregation structure. If observed postfishing patterns are equally likely to have occurred in response to more random, nontargeted fishing, then changes in aggregation patterns cannot be directly attributed to aggregation-based targeting behaviour. The effect of targeted fishing on gre

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Darton, Darton, Sri Wiyati Mahrani, Ansir Ansir, Aidin Hudani Awasinombu, and Rachmat Rialdi Hasan. "PENGARUH KEPEMIMPINAN TRANSFORMASIONAL DAN MOTIVASI KERJA TERHADAP KINERJA KARYAWAN PADA KANTOR PELABUHAN PERIKANAN SAMUDERA KENDARI." Jurnal Manajemen dan Kewirausahaan 14, no. 2 (2022): 468. http://dx.doi.org/10.55598/jmk.v14i2.27095.

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This study aims (1) to determine the effect of transformational leadership and work motivation on employee performance at the ocean kendari fishing port office, (2) to determine the effect of transformational leadership influence on employee performance at the kendari ocean fishing port office, (3) to determine the effect of motivation work on employee performance at the Kendari Ocean Fishery Port Office. The object of this research is the employee at the Kendari Ocean Fishery Port Office. The population in this study were employees at the Kendari Ocean Fishery Port office, amounting to 80 peo

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Mefo, U. Ekine, Ifeanyi-Amos D.I., Okidim E., I. A., and A. A. Okuduwor. "Effect of Crude Oil Pollution on Artisanal Fishing in Asari- Toru, Akuku-Toru and Degema Local Government Areas of Rivers State, Nigeria." International Journal of Agriculture and Earth Science 8, no. 6 (2023): 15–22. http://dx.doi.org/10.56201/ijaes.v8.no6.2022.pg15.22.

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This study analyzed the effect of crude oil production on artisanal fishing in selected local government areas of Rivers State. Purposive and random sampling technique were used in selecting respondents for the study. The sample size for the study was made up of 90 artisanal fishing folks. Data were elicited from fishing folks with a structured questionnaire which were administered to the respondents. Percentage, mean, costs and returns and multiple regression were used for the analyses of data. The result showed that the mean age of respondents was 40 years, while the mean house hold size was

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Clarke, Sarah, and Oliver Tully. "BACI monitoring of effects of hydraulic dredging for cockles on intertidal benthic habitats of Dundalk Bay, Ireland." Journal of the Marine Biological Association of the United Kingdom 94, no. 7 (2014): 1451–64. http://dx.doi.org/10.1017/s0025315414000630.

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Hydraulic dredging for bivalves, such as cockles (Cerastoderma edule), has the potential to cause significant impacts on marine intertidal benthos. Although this fishing activity is common in northern European Natura 2000 sites such impacts may be incompatible with conservation objectives for designated habitats and species within these sites. In 2009–2010 a spatially nested control-impact study was undertaken before (t0), 8–9 days after (t1) and 4 months (t2) following dredging and extraction of 108 tonnes of cockles from a standing stock of 2158 tonnes in Dundalk Bay. This study failed to de

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Avilés-Polanco, Gerzaín, Marco Antonio Almendarez-Hernández, Luis Felipe Beltrán-Morales, and Fernando Aranceta-Garza. "Cost Efficiencies of the Shrimp Fishery in Mexico: A Stochastic Frontier Analysis." Fishes 8, no. 9 (2023): 472. http://dx.doi.org/10.3390/fishes8090472.

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Fishing sector fuel subsidies are designed to increase profitability by reducing costs. However, despite the number of liters of fuel subsidized in 2018 in Mexico, there is no information available on the effectiveness of the subsidies in reducing cost inefficiencies. The purpose of this study was to estimate the cost efficiency of shrimp fishing companies in Mexico, as well as measure the impact of fuel subsidies on the cost inefficiency of the sector from 2003 to 2018. The True Fixed Effects model was used to represent a Cobb–Douglas stochastic production frontier, which included a shrimp fi

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Sbm, Nugroho, Deden Diner Iskandar, and Waridin Waridin. "The Effect of Environmentally Unfriendly Fishing Gear on The Welfare of Fisher in Morodemak Village, Demak Regency." International Journal of Environmental Engineering and Development 2 (July 2, 2024): 184–94. http://dx.doi.org/10.37394/232033.2024.2.16.

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This study aims to see the effect of the use of fishing gear that is not environmentally friendly on the welfare level of fisher in Morodemak Village, Demak Regency. The method used in this study is a snowballing technique for sample collection through interviews so that 50 respondents are obtained, then the analysis method used is cross-tabulation and descriptive statistics. The results of this study found that the majority of Morodemak fisher use environmentally unfriendly fishing gear such as sodo, large trawls, especially small trawls. The use of environmentally unfriendly fishing gear by

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Keppeler, Friedrich Wolfgang, Gustavo Hallwass, and Renato Azevedo Matias Silvano. "Influence of protected areas on fish assemblages and fisheries in a large tropical river." Oryx 51, no. 2 (2016): 268–79. http://dx.doi.org/10.1017/s0030605316000247.

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AbstractProtected areas are one of the main tools for biological conservation worldwide. Although they have contributed to an increase in fish abundance and alleviated the impacts of fishing on marine ecosystems, the impacts of fishing and of protected areas in freshwater ecosystems are less well known. We compared fishing productivity and fish assemblage descriptors of two distinct protected areas designated for sustainable use of natural resources and an unprotected area in the Tapajós River, in the Brazilian Amazon. Two hypotheses were tested: (1) fishers from protected areas have higher ca

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Purnama, Nanda Rizki, Rianjuanda Rianjuanda, Alga Armansyah, Edy Miswar, Chaliluddin Chaliluddin, and Kavinta Melanie. "The Effect of Using Ordinary Lights and Petromak Lights in Hands Fishing Tools on the Types of Catches in Simeulue Waters." Jurnal Kelautan dan Perikanan Indonesia 3, no. 1 (2023): 11–19. http://dx.doi.org/10.24815/jkpi.v3i1.31516.

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The development of hand line fisheries has not experienced much significant progress when compared to other fishing gear. The effectiveness of handline is determined by its design and construction, operation does not require large capital, handline fishing also uses aids such as bait and FADs. The use of light in handline fishing gear to attract phototactic fish. The research objectives were to determine the type and weight of fish caught on handline fishing gear using two different types of lights and to determine the effect of regular light and petromax on fish caught using handline fishing

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TSUMURA, Ryosuke, Nobuo KIMURA, Yasuzumi HUJIMORI, and Toshihiro IWAMORI. "Effect of the Motion Reduction Mooring Device for Fishing Work in the Scallop Cultivation Fishing Boat." Journal of Japan Institute of Navigation 116 (2007): 243–48. http://dx.doi.org/10.9749/jin.116.243.

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Pham, Ca-Van, Hui-Cheng Wang, Sheng-Hung Chen, and Jie-Min Lee. "The Threshold Effect of Overfishing on Global Fishery Outputs: International Evidence from a Sustainable Fishery Perspective." Fishes 8, no. 2 (2023): 71. http://dx.doi.org/10.3390/fishes8020071.

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Using global fishery outputs from 62 countries during the period 2001–2020, this study applies the threshold panel data model of Hansen (2000) to empirically explore the nonlinear relations between the number of fishing vessels, fishers, and fishery production, with distinct overfishing stocks (overfishing) and fish caught by trawling or dredging techniques (trawling) as the threshold variables. Our findings show that the levels of fishery outputs could be increased by different combinations of primary factors, such as the number of fishing vessels and fishers. More specifically, when the numb

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Marçalo, Ana, Tiago A. Marques, João Araújo, Pedro Pousão-Ferreira, Karim Erzini, and Yorgos Stratoudakis. "Fishing simulation experiments for predicting the effects of purse-seine capture on sardine (Sardina pilchardus)." ICES Journal of Marine Science 67, no. 2 (2009): 334–44. http://dx.doi.org/10.1093/icesjms/fsp244.

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Abstract Marçalo, A., Marques, T. A., Araújo, J., Pousão-Ferreira, P., Erzini, K., and Stratoudakis, Y. 2010. Fishing simulation experiments for predicting the effects of purse-seine capture on sardine (Sardina pilchardus). – ICES Journal of Marine Science, 67: 334–344. To study the impact of purse-seine fishing on deliberately released sardine, two laboratory experiments were performed to explore the effect of net confinement for 10, 20, 40, and 60 min at 18 and 23°C. A third experiment considered two levels of fish density while confined for 20 and 40 min at 16°C. Analysis of cortisol and ha

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