Cephalopod fisheries: a future global upside to past overexploitation of living marine resources? Results of an international workshop, 31 August – 2 September 1997, Cape Town, South Africa

Cephalopod fisheries: a future global upside to past overexploitation of living marine resources? Results of an international workshop, 31 August – 2 September 1997, Cape Town, South Africa
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头足类渔业:过去过度开发海洋生物资源的未来全球优势?1997 年 8 月 31 日至 9 月 2 日在南非开普敦举行的国际研讨会的结果

DOI:
10.2989/025776198784126557
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发表时间:
1998
期刊:
影响因子:
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通讯作者:
W. Sauer
W. Sauer
中科院分区:
--
文献类型:
--
作者:
M. Lipiński;D. Butterworth;C. J. Augustyn;J. Brodziak;G. Chrsty;S. Clers;G. Jackson;R. O'dor;D. Pauly;L. V. Purchase;M. Roberts;B. Roel;Y. Sakurai;W. Sauer

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头足类渔业的管理战略与有鳍鱼类渔业面临的挑战相似。头足类动物生命周期的特殊性以及头足类动物渔业可以从其他渔业获得的管理经验中受益这一事实可能有助于防止错误和管理失败。在为期三天的研讨会上,确定了头足类生物学的特点、建议的研究领域和管理的关键结论,并强调了头足类和鱼类之间的差异。其中,生命周期的了解、空间分布、种群补充关系和年龄确定/生长研究被确定为研究的主要优先事项。强调了从生理学和遗传学角度理解生命周期的基本方面及其对理解种群动态的重要性。同样,理论生态学在管理中也发挥着作用,例如空间分布策略在生存中的作用。环境研究在通过产卵生物学一级的联系预测种群趋势方面也越来越重要。在此期间,头足类动物可以使用适用于短寿命鱼类的类似原则进行管理。其中,恒定比例收获策略被认为是最有效的。
Management strategies for cephalopod fisheries present similar challenges to those encountered in fisheries for finfish. Peculiarities of cephalopod life cycles and the fact that cephalopod fisheries can benefit from management experiences gained in other fisheries may help to preclude mistakes and management failures. During a three-day workshop, features of cephalopod biology, recommended areas of research and key conclusions for management were identified and points of differences between cephalopods and fish were highlighted. Among these, life-cycle understanding, spatial distribution, stock-recruitment relationship and age determination/growth studies were identified as key priorities for research. Physiological and genetic approaches to understanding basic aspects of the life cycle, and their importance for understanding population dynamics, were stressed. Similarly, theoretical ecology has a role to play in management, e.g. the role of a spatial distribution strategy in survival. Environmental studies are also emerging as being important in the possible prediction of population trends through links that operate at the level of spawning biology. In the interim, cephalopods can be managed using similar principles to those applied to short-lived fish species. Among these, constant proportion harvest strategies were identified as the most effective.