Relevant bibliographies by topics / Fisheries assessment / Dissertations / Theses
To see the other types of publications on this topic, follow the link: Fisheries assessment.

Dissertations / Theses on the topic 'Fisheries assessment'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Fisheries assessment.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Stephens, Andi. "Assessment in salmon and groundfish fisheries /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2005. http://uclibs.org/PID/11984.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

McCafferty, James Ross. "An assessment of inland fisheries in South Africa using fisheries-dependent and fisheries-independent data sources." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1005072.

Full text
Abstract:
The role of inland fisheries as contributors to local and national economies in developing African countries is well documented. In South Africa, there is increasing interest in inland fisheries as vehicles for achieving national policy objectives including food security, livelihoods provision, poverty alleviation and economic development but there is surprisingly little literature on the history, current status, and potential of inland fishery resources. This lack of knowledge constrains the development of management strategies for ensuring the biological sustainability of these resources and
APA, Harvard, Vancouver, ISO, and other styles
3

Bakhshi, Andisheh. "Length-structured approach to fisheries stock assessment." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28512.

Full text
Abstract:
Modern fishing fleets have the capacity to over-exploit fish stocks. Inaccurate assessments could overestimate the stock size and as a result Total Allowable Catches (TAC) are set too high for sustainable stock conservation. Fisheries management need robust and reliable stock assessments to ensure that the species and environmental effect of fishing is sustainable. Since the demand for ecosystem based approaches to management has increased, the needs for improved estimates of un-assessed abundance have risen. Managers simply need to know how many fish left in the see and how much to limit the
APA, Harvard, Vancouver, ISO, and other styles
4

Nam, Jong-Oh. "Korean fisheries : policies, stock assessment and compliance issues /." View online ; access limited to URI, 2007. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3298374.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Davis, Michelle L. "Assessment of the South Atlantic red porgy (Pagrus pagrus) population under a moratorium." Connect to this title online, 2003. http://scholar.lib.vt.edu/theses/available/etd-01062004-090503/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Marshall, Matthew David Maceina Michael J. "Assessment of electofishing bias, angler exploitation, and a creel survey, and flathead catfish population assessment in Lake Wilson, Alabama." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SUMMER/Fisheries_and_Allied_Aquacultures/Thesis/Marshall_Matthew_55.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Tesfamichael, Dawit. "Assessment of the Red Sea ecosystem with emphasis on fisheries." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42797.

Full text
Abstract:
A comprehensive assessment of the Red Sea large marine ecosystem (LME), with emphasis on fisheries, was carried out using several approaches. The assessment started with a multidisciplinary rapid appraisal of the sustainability of the fisheries using standardized attributes in ecological, economic, social, technical and ethical fields. Then a time-series assessment of the fishery was carried out using data from interviews and the reconstruction of catch from 1950 - 2006. A case study to estimate the unreported catch by quantifying qualitative information on incentives to misreport was carried
APA, Harvard, Vancouver, ISO, and other styles
8

Perez-Comas, José Antonio. "Assessment of mesh size selectivity under commercial fishing conditions /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/5368.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Reis, Marcelo. "Chondrichthyan Bycatch: Risk Assessment, Spatiotemporal trends and Contributions to Management." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/19985.

Full text
Abstract:
Bycatch is one common aspect of fisheries worldwide and recognized as one of the significant impacts over protected and threatened species, chondrichthyans among them. This thesis aims to help mitigate and provide tools to aid the conservation of chondrichthyans. In the first data chapter I developed a model of risk assessment to quantify relative vulnerability of the group based on spatial overlap of natural distributions and fishing events and related to the species resilience. In this study I used commercial fisheries data provided by the Australian Fisheries Management Authority and applie
APA, Harvard, Vancouver, ISO, and other styles
10

Ebil, Syazana. "Assessment of demersal fishery resources in Brunei Darussalam." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/57704/.

Full text
Abstract:
A problem commonly encountered in stock assessments of tropical marine resources in developing countries is data paucity, which invariably results from the lack of both human and economic capacity within the government to implement and maintain programmes for data collection and analysis. With special reference to the demersal fishery of Brunei Darussalam, this thesis examines approaches for extracting useful information from data-poor fisheries to assess the state of resources and inform fishery management actions. By using official fishery statistics, augmented by local ecological knowledge
APA, Harvard, Vancouver, ISO, and other styles
11

Rahman, Md Khalilur. "Fish-based assessment of ecological health of English lowland rivers." Thesis, University of Hull, 2001. http://hydra.hull.ac.uk/resources/hull:11842.

Full text
Abstract:
Riverine fisheries in England are under pressure from a variety of activities, including increasing intensification of land-use, urbanisation, rising demands for water abstraction, pollution, proliferation of exotic species, climate change and recreational activities. As a result, the integrity of English rivers has changed. In this study, an attempt was made to measure the ecological health of 22 English lowland rivers from the Thames, Trent and Yorkshire Ouse catchments using a variety of tools. The objective was to modify the Index of Biotic Integrity (IBI) for use on English lowland rivers
APA, Harvard, Vancouver, ISO, and other styles
12

Dodgen, Rose Elizabeth. "Patterns in size distribution and catch of rockfish (Sebastes spp.) in fisheries-independent and fisheries- dependent hook-and-line surveys on the Central Coast of California." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2183.

Full text
Abstract:
Stock assessments are statistical models which characterize the state of a population of fish. Data for stock assessment models of West Coast nearshore groundfish come largely from fisheries-dependent sources. Incorporating fisheries-independent data would increase data availability. A potential source of fisheries-independent data which is comparable to existing fisheries-dependent data is the California Collaborative Fisheries Research Program (CCFRP), a Marine Protected Area (MPA) monitoring study. We are interested in understanding the context in which CCFRP could be implemented into asses
APA, Harvard, Vancouver, ISO, and other styles
13

Mkumbo, Oliva Charles. "Assessment and management of Nile perch (Lates niloticus L.) stocks in the Tanzanian waters of Lake Victoria." Thesis, University of Hull, 2002. http://hydra.hull.ac.uk/resources/hull:13307.

Full text
Abstract:
Lake Victoria contributes more than 60% of the total fish yield in each of the respective riparian countries, Kenya, Uganda and Tanzania. Nile perch Lates niloticus contributed more than 60% to the total yield from the lake. Although accused of causing ecological instability of the ecosystem due to its predatory effects, the fishing industry became socially and economically dependable on the Nile perch. In the mid 1990s signs of overfishing were observed and concerns for the sustainability of the fishery were raised. To properly manage a fishery, knowledge of the factors that regulate the dyna
APA, Harvard, Vancouver, ISO, and other styles
14

Deng, Xiaoying. "A comparative analysis of fish stock assessment methods, spatial-temporal versus VPA." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ57106.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Brouwer, Stephen Leonard. "An assessment of the South African east coast linefishery from Kei Mouth to Stil Bay." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1005076.

Full text
Abstract:
During the period April 1994 and February 1996 as part of an investigation into the national Iinefishery, the east coast shore fishery and the recreational and commercial ski-boat fisheries were surveyed, at eight sites between Kei Mouth in the East and Stil Bay in the West. Roving creel, access point and aerial surveys were used. A questionnaire was developed for each sector to gather data on catch and effort, fisher demographics, economics, fisher attitudes towards, and knowledge of, the current management regulations and assess the efficacy of the fisheries inspectorate. During the access p
APA, Harvard, Vancouver, ISO, and other styles
16

Aubert, Hernan 1963. "Assessment of the potential for culture of the Chinese clam (Chione gnidia) in the estuary of La Cruz, Sonora, Mexico." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/278727.

Full text
Abstract:
Growth and mortality of the chinese clam (chione gnidia) were examined in the Estuary of La Cruz, Sonora, Mexico from 1987 to 1989. Clams were reared in trays in two habitats of the Estuary of La Cruz, the pool and the canal, where four experiments were carried out. In experiment 1 growth and mortality under two densities and two environments was assessed. Experiment 2 yielded information on growth and mortality of clams growing on four different substrates and at two densities. Experiment 3 assessed growth and mortality in high density conditions, and experiment 4 assessed growth after a peri
APA, Harvard, Vancouver, ISO, and other styles
17

Caneco, Bruno. "Modelling catch sampling uncertainty in fisheries stock assessment : the Atlantic-Iberian sardine case." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/4474.

Full text
Abstract:
The statistical assessment of harvested fish populations, such as the Atlantic-Iberian sardine (AIS) stock, needs to deal with uncertainties inherent in fisheries systems. Uncertainties arising from sampling errors and stochasticity in stock dynamics must be incorporated in stock assessment models so that management decisions are based on realistic evaluation of the uncertainty about the status of the stock. The main goal of this study is to develop a stock assessment framework that accounts for some of the uncertainties associated with the AIS stock that are currently not integrated into stoc
APA, Harvard, Vancouver, ISO, and other styles
18

Currie, Jock. "Historical baselines and a century of change in the demersal fish assemblages on South Africa's Agulhas Bank." Doctoral thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27385.

Full text
Abstract:
Accurate interpretation of recent variability observed in fish populations, species compositions, distribution ranges or ecological indicators, depends on knowledge of their past dynamics and historical states. The onset of systematic fisheries data collection typically lagged decades or even centuries behind modern fishing exploits. As a consequence, pre-disturbed reference points and descriptions of subsequent change are rarely available. A remarkably detailed set of historical trawl survey data from South Africa provided such a rare opportunity. Government-funded exploration of the Agulhas
APA, Harvard, Vancouver, ISO, and other styles
19

Uzonnah, Nwamaka Mary-Immaculata. "Assessment of the population structure of the South African sardine Sardinops sagax using a multi-method approach and the morphological and molecular characterization of a stock-discriminating digenean parasite biotag of the genus Cardiocephaloides." Doctoral thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27244.

Full text
Abstract:
An understanding of the population structure of commercially exploited species is essential for effective fisheries management. Fish stocks are typically identified based on the observation of differences in genetic and/or phenotypic characteristics between fish from discrete units. Recent deliberations on the management of the South African purse-seine sardine fishery recognises the likely existence of two stocks, one on the west and another on the south coasts, following studies that have documented spatial variability in several phenotypic characteristics of this species around South Africa
APA, Harvard, Vancouver, ISO, and other styles
20

Jones, Kate. "Monitoring, Assessment, and Management of the Green Sea Urchin (Strongylocentrotus droebachiensis) Fishery in Maine." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/JonesKX2006.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Williams, Chris F. "Impact assessment of non-native parasites in freshwater fisheries in England and Wales." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/410.

Full text
Abstract:
Non-native parasites pose a significant threat to aquatic bio-diversity and fishery development. Many factors have facilitated the introduction of non-native parasites into England and Wales. Identifying the effects of these parasites and the importance of any changes to wild fish populations represents a considerable challenge. However, in order for the Environment Agency to identify future disease threats, effectively manage resources and implement practical and sustainable control measures, the risks posed by these parasites to fisheries must be better understood. A structured, risk-assessm
APA, Harvard, Vancouver, ISO, and other styles
22

Japp, David William. "An assessment of the South African longline fishery with emphasis on stock integrity of kingklip, Genypterus capensis (Pisces : ophidiidae)." Thesis, Rhodes University, 1989. http://hdl.handle.net/10962/d1004660.

Full text
Abstract:
The South African demersal longline experiment is assessed with emphasis on the target species, kingklip Genypterus capensis. The hypothesis that kingklip on the South African coast comprise a unit stock is tested. Recommendations for the management of the fishery are made. Longlining was found to be commercially viable. Techniques have been developed to target on either kingklip or the Cape hakes, Herluccius capensis and H. paradoxus. Longline fishermen exploit the kingklip spawner stock from August to No v ember by taking advantage of prespawning aggregations on the South-East Coast . Effort
APA, Harvard, Vancouver, ISO, and other styles
23

Mellet, Bernice. "Ecological risk assessment of fisheries on sea turtles in the South Western Indian Ocean." Thesis, Nelson Mandela Metropolitan University, 2015. http://hdl.handle.net/10948/9957.

Full text
Abstract:
The SWIO is an area of great biodiversity and included in the diverse species that occupy the region are five species of sea turtles that include green turtles, hawksbills, leatherbacks, loggerheads and olive ridleys. Despite considerable conservation efforts at sea turtle rookeries in the South Western Indian Ocean, only green and loggerhead turtle populations have shown an increase in population size in recent years (<10 years), whereas leatherbacks remained stable and hawksbills and olive ridleys declined. This begs the question if fisheries (or other offshore pressures) are responsible for
APA, Harvard, Vancouver, ISO, and other styles
24

Huynh, Quang C. "Extensions and Applications of Mean Length Mortality Estimators for Assessment of Data-Limited Fisheries." W&M ScholarWorks, 2017. https://scholarworks.wm.edu/etd/1516639583.

Full text
Abstract:
For data-limited fisheries, length-based mortality estimators are attractive as alternatives to age-structured models due to the simpler data requirements and ease of use of the former. This dissertation develops new extensions of mean length-based mortality estimators and applies them to federally-managed stocks in the southeastern U.S. and U.S. Caribbean. Chapter 1 presents a review of length-based methods from the literature. Common themes regarding the methodology, assumptions, and diagnostics in these length-based methods are discussed. In Chapter 2, a simulation study evaluates the perfo
APA, Harvard, Vancouver, ISO, and other styles
25

Rijal, Staci Faye. "Informing U.S. Caribbean fisheries management through simulation modeling: a case of length-based mortality estimation models." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/36379.

Full text
Abstract:
Length-based stock assessment models estimating mortality rates are attractive choices for assessing fisheries with data deficiencies. The U.S. Caribbean is exploring using these models and trying to optimize their commercial sampling program for such a model. <p> A simulation model was constructed to compare two length-based mortality estimators, the Beverton-Holt and Gedamke-Hoenig models. The simulations also tested aspects of the Gedamke-Hoenig model previously not thoroughly addressed, such as the effects of varied life history parameters, violating the assumptions of constant growth an
APA, Harvard, Vancouver, ISO, and other styles
26

Walmsley, Sarah Ann. "The assessment and management of bycatch and discards in the South African demersal trawl fishery." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1005071.

Full text
Abstract:
Over the past few decades it has become recognised that an ecosystem approach is required to manage world fisheries. Management strategies must ensure that non-target (bycatch) as well as target catches are sustainable. To achieve this, detailed commercial catch and biological information is required. The composition of catches made by trawlers operating off the south and west coasts of South Africa was investigated. Distinct fishing areas were identified on each coast, based on target species and fishing depth. Catch composition differed markedly among the areas defined. Although hake Merlucc
APA, Harvard, Vancouver, ISO, and other styles
27

Martins, de Lucena Flavia. "Species interaction in fish stock assessment and management in southern Brazil : a bio-economic approach." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327604.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Halls, Ashley Stewart. "An assessment of the impact of hydraulic engineering on floodplain fisheries and species assemblages in Bangladesh." Thesis, Imperial College London, 1997. http://hdl.handle.net/10044/1/7704.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Bundy, Alida. "Assessment and management of multispecies, multigear fisheries, a case study from San Miguel Bay, the Philippines." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ27114.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Heery, Eliza Crenshaw. "The impact of bias in length frequency data on an age structured fisheries stock assessment model." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/32865.

Full text
Abstract:
Statistical age-structured models are widely used in fisheries stock assessment. These models have been become increasingly complex over recent decades, allowing them to incorporate a larger variety of fisheries data. These typically include information regarding annual fishery yields, indices of abundance and catch composition data, which reflect the distribution of ages in the harvested population each year. In some fisheries, age composition can be determined annually through the examination of annuli on hard parts, such as otoliths or scales. These methods are, however, costly, time co
APA, Harvard, Vancouver, ISO, and other styles
31

Huchzermeyer, Carl Friedrich. "Fish and fisheries of Bangweulu wetlands, Zambia." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1003927.

Full text
Abstract:
Bangweulu Wetlands is a 6000 km² public-private-partnership conservation area in northeastern Zambia, lying on the south-eastern margins of the Bangweulu Swamps, Congo River system. The area is important for wildlife conservation, tourism and as a fishing ground for the local inhabitants. This study provides a baseline of the fish and fisheries of this area. The conservation area is situated on the transition zone between woodland, floodplain and swamp. A total of 42 fish species representing 12 taxonomic families were collected. The fish fauna of the area was characterised by a diversity of s
APA, Harvard, Vancouver, ISO, and other styles
32

Stoffle, Richard W. "Antigua Mithrax Crab Mariculture Presentation." University of Arizona Libraries, Special Collections, 2013. http://hdl.handle.net/10150/297465.

Full text
Abstract:
This presentation was created to supplement the Mithrax Crab culture technical report Caribbean Fishermen Farmers and provide images that can further convey an understanding of the analysis and findings presented in the Antigua portion of the report.
APA, Harvard, Vancouver, ISO, and other styles
33

Stoffle, Richard W. "Caribbean Fisherman Farmers: A Social Impact Assessment of Smithsonian King Crab Mariculture." Institute for Social Research, University of Michigan, 1986. http://hdl.handle.net/10150/293023.

Full text
Abstract:
This is an assessment of the social and cultural factors that potentially will influence the transfer of Caribbean King Crab or Mithrax mariculture as it has been developed in two West Indian project sites. The projects are located in Nonsuch Bay, Antigua, and Buen Hombre,Dominican Republic. The projects derive from an original proposal entitled "A New Mariculture Project for the Lesser Antilles," which was submitted by the Smithsonian Institution, Marine Systems Laboratory (MSL), to the U.S. Agency for International Development (AID). That project was funded as AID Project No. 598 -065. This
APA, Harvard, Vancouver, ISO, and other styles
34

Jordan, Tia. "An assessment of the small-scale fisheries in the Kogelberg district of the Western Cape, South Africa." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/997.

Full text
Abstract:
Small-scale fisheries play a critical role in communities by contributing to food security, poverty alleviation and source of income. The study focused on the Kleinmond small-scale fishery and estimated the current economic value of the fishery as well as exploring the potential for increasing this and also whether it is being used in a way that ensures sustainable harvesting of the marine resources. It was important to evaluate the ecological, economic and social dimensions of the fishing community in order to address the problems currently facing the community. The study draws on previous re
APA, Harvard, Vancouver, ISO, and other styles
35

Sakata, Tommy Taira. "An assessment of area licence configurations in the B.C. salmon fishery." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24911.

Full text
Abstract:
There has been much discussion of the merits and limitations of area licensing, i.e., a fishery management tool which restricts fishermen to certain geographic areas, in the British Columbia," Canada, salmon fishery. To date there has been little formal evaluation of the implications of this policy tool for salmon fishery management. In the reports by Pearse (1982), Sinclair (1978) and Fleet Rationalization Committee (1982) some insights on the subject are provided, but an evaluation in terms of specific criteria is lacking. This study evaluates five area licence configurations in the context
APA, Harvard, Vancouver, ISO, and other styles
36

Mackenzie, Bernard Louis. "An assessment of the shore baitfishery in the Eastern Cape." Thesis, Rhodes University, 2005. http://eprints.ru.ac.za/165/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Hutchens, Stan Jonathan. "Inventory and Assessment of the Reptile and Amphibian Community of Bull Neck Swamp, Washington County, North Carolina." NCSU, 2008. http://www.lib.ncsu.edu/theses/available/etd-02012008-151409/.

Full text
Abstract:
Recent declines in reptile and amphibian populations across the globe have encouraged an increased desire to discover, document, and monitor these taxa. Arguably, the greatest cause is land-use change. Management interests for Bull Neck Swamp (BNS) encouraged research to inventory the reptile and amphibian community and to document possible impacts of land-use practices, such as silviculture and site preparation. Four habitat preserves were delineated based on plant community, leaving 1, 554ha (3, 841ac) available for management. Comparisons between habitat assemblages were used to determine i
APA, Harvard, Vancouver, ISO, and other styles
38

Voges, Elizabeth. "Assessment of patterns in the Namibian hake fishery based on commercial fisheries data, in relation to environmental factors." Doctoral thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/6192.

Full text
Abstract:
Bibliography: p. 109-122.<br>This thesis explores the relationships between commercial data and those obtained from research surveys in an attempt to broaden the database available for management, and to cover seasonal and inter-annual changes in density estimates of Cape hake (Merluccius capensis). It also attempts to explain hake variability of in terms of environmental indices based on satellite remote sensing, carefully chosen to reflect underlying oceanographic processes. The influence of various factors on catch rates (CPUE) is investigated using a general linear model.
APA, Harvard, Vancouver, ISO, and other styles
39

Al-Oufi, Hamed Said. "Social and economic factors influencing the emergence of collective action in a traditional fishery of Oman : an empirical assessment of three coastal fishing towns in south Al-Batinah." Thesis, University of Hull, 1999. http://hydra.hull.ac.uk/resources/hull:3871.

Full text
Abstract:
Overexploitation of many fish stocks underlines the need for more effort directed towards stock management so that the sustainability of resources is assured. To avert the tragic consequences of overfishing in coastal waters, a growing body of theoretical and empirical research provides evidence in support of cooperation among resource users to manage their commons. This study aimed to investigate the factors that contribute to the emergence and evolution of collective action in fishermen's communities to manage their coastal fish resources in South Al-Batinah, Sultanate of Oman. The study emp
APA, Harvard, Vancouver, ISO, and other styles
40

Spillman, Claire. "A modelling assessment of hydrodynamics and biogeochemistry of the northern Adriatic Sea, and effects on clam dynamics in Barbamarco Lagoon, Italy /." Connect to this title, 2006. http://theses.library.uwa.edu.au/adt-WU2008.0002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Stoffle, Richard W. "Dominican Republic Mithrax Crab Mariculture Presentation." University of Arizona Libraries, Special Collections, 2013. http://hdl.handle.net/10150/297468.

Full text
Abstract:
This presentation was created to supplement the Mithrax Crab culture technical report Caribbean Fishermen Farmers and provide images that can further convey an understanding of the analysis and findings presented in the Dominican Republic portion of the report.
APA, Harvard, Vancouver, ISO, and other styles
42

Alderson, Jessica Lynn. "Assessment of the urban public's knowledge of white-tailed deer management in two Texas communities." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3083.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Keller, Stefanie. "Life-history, ecology and fisheries of cephalopods in the western Mediterranean." Doctoral thesis, Universitat de les Illes Balears, 2017. http://hdl.handle.net/10803/401646.

Full text
Abstract:
Cephalopods constitute an important faunistic group in marine ecosystems, representing keystone elements in marine food webs. Additionally, they are an important fishing resource, and their contribution to worldwide fishery landings has been rising significantly over the last decades. In the Mediterranean Sea, several local short-term studies on cephalopod abundance and distribution exist, but few integrate longer time scales and larger areas. The present thesis work combines large-scale, long-term studies on cephalopods community composition, diversity and abundance (Part I) with small-scale,
APA, Harvard, Vancouver, ISO, and other styles
44

Zhang, Yafei. "Exploring spatial heterogeneity of CPUE year trend and nonstationarity in fisheries stock assessment, an example based on Atlantic Weakfish (Cynoscion regalis)." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/78094.

Full text
Abstract:
Quantitative population dynamics modeling is needed to evaluate the stock status and fisheries management plans to provide robust model and management strategies. Atlantic Weakfish (Cynoscion regalis), one important commercial and recreational fish species along the west coast of Atlantic Ocean that was found to be declining in recent years, was selected as an example species. My study aimed to explore the possible spatial heterogeneity of CPUE (catch per unit effort) year trend based on three fishery independent surveys and explore the influence of nonstationary natural mortality on the fishe
APA, Harvard, Vancouver, ISO, and other styles
45

Álvarez, Berastegui Diego. "Integration of marine habitat information into the study of fish ecology: New approaches for ecosystem based fisheries management." Doctoral thesis, Universitat de les Illes Balears, 2016. http://hdl.handle.net/10803/650392.

Full text
Abstract:
The overexploitation of marine living resources challenges the scientific community for developing new analytical approaches providing effective tools for marine management, ensuring long-term conservation of the harvested and threatened species. Currently, the scientific efforts are mainly focused on the development of techniques and concepts to improve the assessment and management of these populations from a holistic point of view within the framework of the Ecosystem Based Management (EBM). While the principles and objectives of EBM have been accepted by the scientific community and
APA, Harvard, Vancouver, ISO, and other styles
46

Ramírez, Téllez John Gabriel. "Adressing the reliability of data-poor stock assessment methods to provide advice on the status of small-scale fisheries." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/668302.

Full text
Abstract:
Small-scale fishers are often identified as key players in the recovery of overexploited fish and invertebrate stocks supplying food for rural people and contributing to achieving healthy marine ecosystems. Stocks harvested by small-scale fisheries tend to be largely unassessed, but methods based on the data-limited toolbox exist that help provide information on exploitation status for fished stocks that do not have historical time series of catches, as usually occur in small-scale fisheries. Many of the data-limited methods follow length-based assessment approaches, which assume steady state,
APA, Harvard, Vancouver, ISO, and other styles
47

Previero, Marília. "The snapper and grouper fisheries of the Abrolhos Bank, East Brazil shelf: fleet patterns, exploitation status and risk assessment." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/21/21134/tde-18022019-134135/.

Full text
Abstract:
The fishery is a complex and dynamic socio-ecological system involving several actors and knowledge areas. Along the Brazilian coast the small-scale fisheries are very common and provide important ecosystem services. This fishery modality are usually data-poor in terms of catch and abundance data, landing records, quantification of vessels and fishing gear used. This data-limited condition frequently hampers fishery assessments and effective managements. That is the case in the Abrolhos Bank, East Brazil, a wide portion of the shallow continental shelf that encompass a complex benthic habitat
APA, Harvard, Vancouver, ISO, and other styles
48

Nthimo, Mokitinyane Francis. "The biology of commercially important fish species and a preliminary assessment of the fisheries potential of Katse Dam, Lesotho." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1005081.

Full text
Abstract:
The construction of the Katse dam was completed in 1996. The dam started filling in 1995 and reached full capacity in early 1998. It forms part of Phase 1A of the Lesotho Highlands Water Project (LHWP). The main aim of the project is to provide revenue to Lesotho, by transferring water from the catchment of the Senqu (Orange) River in Lesotho to South Africa’s major industrial and population centres. During the implementation of the project, an estimated 130 people were displaced. However, the most serious impact has been the loss of the traditional way of life in the form of arable and grazin
APA, Harvard, Vancouver, ISO, and other styles
49

Reis, Enir Girondi. "An assessment of the exploitation of the white croaker Micropogonias furieri (Pisces, Sciaenidae) by the artisanal and industrial fisheries in coastal waters of southern Brazil." Thesis, University of East Anglia, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332297.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Torre, Cosio Jorge. "Inventory, monitoring and impact assessment of marine biodiversity in the Seri Indian territory, Gulf of California, Mexico." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/280215.

Full text
Abstract:
The conservation of marine ecosystems is at least 20 years behind terrestrial and freshwater ecosystems due to the difficulties in studying and monitoring these dynamic and complex environments. Furthermore, marine environment receive less attention because human impacts are less visible in the sea, and oceans are viewed as global commons. The purpose of the present dissertation is to contribute to the knowledge of marine conservation through the development of three components in natural resources management: inventory, monitoring, and assessment of impacts. I elaborate a multi-taxa inventory
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Fisheries assessment' for other source types:
Journal articles Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography