Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii

DS Schoeman, AC Cockcroft, DL Van Zyl, PC Goosen

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    Alterations to the operational fishing gear used in the South African west coast rock lobster Jasus lalandii fishery and their resultant impacts are investigated. The most important developments have been: (i) a change during the 1960s from hand-hauled hoopnets to winch-hauled traps, with a concomitant modification of vessels; (ii) the introduction of deck-grid sorters in 1975; (iii) an increase during 1984 of minimum mesh aperture from 62 to 100 mm (stretched), with a concomitant decrease in the length of the trap codend; (iv) a decrease in the minimum legal size during the early 1990s; and (v) the introduction of bottom-grid traps in 1994. Most of these alterations have been driven by a tradeoff between the need for greater operational efficiency and concerns surrounding the issue of how best to deal with the problem of catching and releasing specimens smaller than the minimum legal size.
    LanguageEnglish
    Pages365-369
    JournalSOUTH AFRICAN JOURNAL OF MARINE SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR SEEWETENSKAP
    Volume24
    Publication statusPublished - 2002

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    Cite this

    Schoeman, DS., Cockcroft, AC., Van Zyl, DL., & Goosen, PC. (2002). Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii. 24, 365-369.
    Schoeman, DS ; Cockcroft, AC ; Van Zyl, DL ; Goosen, PC. / Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii. 2002 ; Vol. 24. pp. 365-369.
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    abstract = "Alterations to the operational fishing gear used in the South African west coast rock lobster Jasus lalandii fishery and their resultant impacts are investigated. The most important developments have been: (i) a change during the 1960s from hand-hauled hoopnets to winch-hauled traps, with a concomitant modification of vessels; (ii) the introduction of deck-grid sorters in 1975; (iii) an increase during 1984 of minimum mesh aperture from 62 to 100 mm (stretched), with a concomitant decrease in the length of the trap codend; (iv) a decrease in the minimum legal size during the early 1990s; and (v) the introduction of bottom-grid traps in 1994. Most of these alterations have been driven by a tradeoff between the need for greater operational efficiency and concerns surrounding the issue of how best to deal with the problem of catching and releasing specimens smaller than the minimum legal size.",
    author = "DS Schoeman and AC Cockcroft and {Van Zyl}, DL and PC Goosen",
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    Schoeman, DS, Cockcroft, AC, Van Zyl, DL & Goosen, PC 2002, 'Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii', vol. 24, pp. 365-369.

    Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii. / Schoeman, DS; Cockcroft, AC; Van Zyl, DL; Goosen, PC.

    Vol. 24, 2002, p. 365-369.

    Research output: Contribution to journalArticle

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    T1 - Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii

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    AU - Cockcroft, AC

    AU - Van Zyl, DL

    AU - Goosen, PC

    PY - 2002

    Y1 - 2002

    N2 - Alterations to the operational fishing gear used in the South African west coast rock lobster Jasus lalandii fishery and their resultant impacts are investigated. The most important developments have been: (i) a change during the 1960s from hand-hauled hoopnets to winch-hauled traps, with a concomitant modification of vessels; (ii) the introduction of deck-grid sorters in 1975; (iii) an increase during 1984 of minimum mesh aperture from 62 to 100 mm (stretched), with a concomitant decrease in the length of the trap codend; (iv) a decrease in the minimum legal size during the early 1990s; and (v) the introduction of bottom-grid traps in 1994. Most of these alterations have been driven by a tradeoff between the need for greater operational efficiency and concerns surrounding the issue of how best to deal with the problem of catching and releasing specimens smaller than the minimum legal size.

    AB - Alterations to the operational fishing gear used in the South African west coast rock lobster Jasus lalandii fishery and their resultant impacts are investigated. The most important developments have been: (i) a change during the 1960s from hand-hauled hoopnets to winch-hauled traps, with a concomitant modification of vessels; (ii) the introduction of deck-grid sorters in 1975; (iii) an increase during 1984 of minimum mesh aperture from 62 to 100 mm (stretched), with a concomitant decrease in the length of the trap codend; (iv) a decrease in the minimum legal size during the early 1990s; and (v) the introduction of bottom-grid traps in 1994. Most of these alterations have been driven by a tradeoff between the need for greater operational efficiency and concerns surrounding the issue of how best to deal with the problem of catching and releasing specimens smaller than the minimum legal size.

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    Schoeman DS, Cockcroft AC, Van Zyl DL, Goosen PC. Changes to regulations and the gear used in the South African commercial fishery for Jasus lalandii. 2002;24:365-369.