Biology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheries

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dc.contributor.advisorBranch, George Men_ZA
dc.contributor.advisorCockcroft, Andrewen_ZA
dc.contributor.authorGroeneveld, Johan Conraden_ZA
dc.date.accessioned2014-08-13T14:19:18Z
dc.date.available2014-08-13T14:19:18Z
dc.date.issued2000en_ZA
dc.descriptionIncludes bibliography.en_ZA
dc.description.abstractRecent declines in the biomass of the closely-related deep-water rock lobsters Palinurus gilchristi and P.delagoae off South Africa suggest that both these resources are currently overfished, and that the existing management procedures are inadequate. A lack of detailed fisheries, biological and ecological knowledge is partly to blame, as this deficiency limits the scope and utility of resource assessments, and impairs the capacity of managers to forumulate species-specific management strategies. This thesis aimed to expand the biological and ecological bases on which effective resource assessment rests, and to recommend methods to improve the management of these deep-water rock lobster populations. The steps taken were: (1) determination and interspecies comparison of biological parameters, including spatial and temporal size composition trends, somatic growth rates, size at sexua maturity, female fecundity, mortality rates, moulting, recruitment and migration; (2) assessment of the effect of fishing with different gear types or arrays on abundance and its indices; and (3) incorporation of new information into resource assessments, with recommendations aiming to improve the management of the fisheries.en_ZA
dc.identifier.apacitationGroeneveld, J. C. (2000). <i>Biology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheries</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/6260en_ZA
dc.identifier.chicagocitationGroeneveld, Johan Conrad. <i>"Biology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheries."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2000. http://hdl.handle.net/11427/6260en_ZA
dc.identifier.citationGroeneveld, J. 2000. Biology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheries. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Groeneveld, Johan Conrad AB - Recent declines in the biomass of the closely-related deep-water rock lobsters Palinurus gilchristi and P.delagoae off South Africa suggest that both these resources are currently overfished, and that the existing management procedures are inadequate. A lack of detailed fisheries, biological and ecological knowledge is partly to blame, as this deficiency limits the scope and utility of resource assessments, and impairs the capacity of managers to forumulate species-specific management strategies. This thesis aimed to expand the biological and ecological bases on which effective resource assessment rests, and to recommend methods to improve the management of these deep-water rock lobster populations. The steps taken were: (1) determination and interspecies comparison of biological parameters, including spatial and temporal size composition trends, somatic growth rates, size at sexua maturity, female fecundity, mortality rates, moulting, recruitment and migration; (2) assessment of the effect of fishing with different gear types or arrays on abundance and its indices; and (3) incorporation of new information into resource assessments, with recommendations aiming to improve the management of the fisheries. DA - 2000 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2000 T1 - Biology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheries TI - Biology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheries UR - http://hdl.handle.net/11427/6260 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6260
dc.identifier.vancouvercitationGroeneveld JC. Biology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheries. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2000 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6260en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.titleBiology and ecology of the deep-water rock lobsters Palinurus gilchristi and Palinurus delagoae in relation to their fisheriesen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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