Articles by Keyword: Catch And Effort

Search results for Catch And Effort

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  1. Quantifying commercial catch and effort of monkfish <em>Lophius vomerinus</em> and <em>L. vaillanti</em> off Namibia

    Quantifying commercial catch and effort of monkfish <em>Lophius vomerinus</em> and <em>L. vaillanti</em> off Namibia

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Abundance and exploitation patterns of monkfish Lophius vomerinus and L. vaillanti were investigated for use as inputs into a stock assessment framework to be used for management of the Namibian monkfish resource. Total numbers of monkfish caught per size-class were...
  2. Catch and effort of the shore and skiboat linefisheries along the South African Eastern Cape Coast

    Catch and effort of the shore and skiboat linefisheries along the South African Eastern Cape Coast

    Item type: Journal Article • Journal: South African Journal of Marine Science
    An assessment of catch and effort in the Eastern Cape shore and skiboat linefisheries was undertaken between 1994 and 1996 by means of roving creel and access point surveys. Catch-and-effort data were obtained from direct observation of 3 273 shore-fishers,...
  3. An assessment of the recreational fishery in the St Lucia estuarine system, KwaZulu-Natal, South Africa

    An assessment of the recreational fishery in the St Lucia estuarine system, KwaZulu-Natal, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    St Lucia is one of the largest estuarine systems in Africa, and attracts thousands of anglers each year. Catchcard data from the National Marine Linefish System for the years 1986–1999 were analysed to determine catch composition, catch per unit effort...
  4. Catch-and-effort estimates for the gillnet and beach-seine fisheries in the Western Cape, South Africa

    Catch-and-effort estimates for the gillnet and beach-seine fisheries in the Western Cape, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Total catch and effort for the inshore net-fisheries in the Western Cape, South Africa, were estimated by means of face-to-face questionnaire, telephone and access point surveys, analysis of factory records and compulsory catch returns. In most areas, gillnet fishing effort...
  5. GLM-based standardization of the catch per unit effort series for South African west coast hake, focusing on adjustments for targeting other species

    GLM-based standardization of the catch per unit effort series for South African west coast hake, focusing on adjustments for targeting other species

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Catch per unit effort (cpue) data for the South African west coast Cape hakes Merluccius capensis and M. paradoxus were standardized by applying the Generalized Linear Modelling (GLM) technique. The resulting standardized series indicated that resource abundance declined at a...
  6. CATCH AND EFFORT IN THE LAKE KARIBA SARDINE FISHERY

    CATCH AND EFFORT IN THE LAKE KARIBA SARDINE FISHERY

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The fishery for Limnothrissa on Lake Kariba, which produced nearly 25 000 t in 1985, is backed by a comprehensive statistical system which increases the chance of using catch and effort models to manage it. The way in which effort...
  7. A preliminary quantitative assessment of gillnet fishing in subtropical Lake Tzaneen, Northern Province, South Africa

    A preliminary quantitative assessment of gillnet fishing in subtropical Lake Tzaneen, Northern Province, South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Between January 1998 and January 1999 a quantitative investigation was done on the fish populations of Lake Tzaneen, Northern Province, South Africa. Two graded series of multi-filament gillnets were set overnight every six weeks capturing 14 species of fish. Of...
  8. An Assessment of the Recreational and Commercial Skiboat Fishery in the Transkei

    An Assessment of the Recreational and Commercial Skiboat Fishery in the Transkei

    Item type: Journal Article • Journal: African Journal of Marine Science
    A survey of the recreational and commercial skiboat linefishery in the Transkei was conducted from March 1997 to April 1999. Effort by commercial skiboats was substantially higher than by recreational skiboats, and catch rates on commercial boats were much higher...
  9. Assessment of the Linefishery in Two Urban Estuarine Systems In Kwazulu-natal, South Africa

    Assessment of the Linefishery in Two Urban Estuarine Systems In Kwazulu-natal, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    The recreational linefisheries in Durban Harbour and the Mgeni Estuary were surveyed using roving creel and access-point surveys during the period January–December 2000. In total, 3 351 shore-anglers and 652 boat-anglers were checked for catch-and-effort information, and 432 shore-anglers were...
  10. White shark and other chondrichthyan interactions with the beach-seine (treknet) fishery in False Bay, South Africa

    White shark and other chondrichthyan interactions with the beach-seine (treknet) fishery in False Bay, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    Public perception has been that an apparent increase in the nearshore occurrence of white sharks Carcharodon carcharias in False Bay, on the south coast of South Africa, can at least be partly attributed to beach-seine (treknet) operations attracting sharks into...