The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast

 

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dc.contributor.advisor Griffiths, Charles L en_ZA
dc.contributor.author Prosch, Richardt Murray en_ZA
dc.date.accessioned 2016-09-28T19:08:37Z
dc.date.available 2016-09-28T19:08:37Z
dc.date.issued 1986 en_ZA
dc.identifier.citation Prosch, R. 1986. The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/21998
dc.description.abstract Lampanyctodes hectoris, commonly called lanternfish, is a myctophid and was first recorded in the South African pelagic catches in 1969. The average annual landings since then have been approximately 4% of the pelagic catch, the largest being 42 560 metric tons in 1973 (10,45% of the total landing). Maurolicus muelleri, commonly called lightfish, is a sternoptychid, and is not taken commercially. An attempt was made to document the basic biology of these two species before possible commercial fishing pressure brings about a change in these parameters. Samples of L. hectoris taken from commercial catches and research cruises, and samples of M. muelleri obtained from research cruises were analysed to obtain the biological parameters. L. hectoris spawning in the southern Benguela Current System occurs throughout the year, but mainly during the late winter to early spring with a peak in spring. M. muelleri spawning occurs throughout the year with a peak in spring/early summer and a smaller peak in winter. Maturity analysis show the same pattern, and also indicate that M. muelleri spawning has both a vertical and a horizontal dimension and its eggs were found in the temperature range 14 to 11°c. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Zoology en_ZA
dc.title The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Biological Sciences en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Prosch, R. M. (1986). <i>The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/21998 en_ZA
dc.identifier.chicagocitation Prosch, Richardt Murray. <i>"The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1986. http://hdl.handle.net/11427/21998 en_ZA
dc.identifier.vancouvercitation Prosch RM. The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1986 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/21998 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Prosch, Richardt Murray AB - Lampanyctodes hectoris, commonly called lanternfish, is a myctophid and was first recorded in the South African pelagic catches in 1969. The average annual landings since then have been approximately 4% of the pelagic catch, the largest being 42 560 metric tons in 1973 (10,45% of the total landing). Maurolicus muelleri, commonly called lightfish, is a sternoptychid, and is not taken commercially. An attempt was made to document the basic biology of these two species before possible commercial fishing pressure brings about a change in these parameters. Samples of L. hectoris taken from commercial catches and research cruises, and samples of M. muelleri obtained from research cruises were analysed to obtain the biological parameters. L. hectoris spawning in the southern Benguela Current System occurs throughout the year, but mainly during the late winter to early spring with a peak in spring. M. muelleri spawning occurs throughout the year with a peak in spring/early summer and a smaller peak in winter. Maturity analysis show the same pattern, and also indicate that M. muelleri spawning has both a vertical and a horizontal dimension and its eggs were found in the temperature range 14 to 11°c. DA - 1986 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1986 T1 - The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast TI - The biology, distribution and ecology of Lampanyctodes hectoris and Maurolicus muelleri along the South-African coast UR - http://hdl.handle.net/11427/21998 ER - en_ZA


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