A fishery-independent survey of juvenile shortfin mako (Isurus oxyrinchus) and blue (Prionace glauca) sharks in the Southern California Bight, 1994-2013
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- 作者：Rosa Runciea ; Rosa.Runcie@noaa.gov" class="auth_mail" title="E-mail the corresponding author ; David Holtsb ; James Wraithb ; Yi Xuc ; Darlene Ramonb ; Rand Rasmussenb ; Suzanne Kohinb
- 关键词：Pelagic shark longline survey ; Catch-per-unit-effort (CPUE) ; Shark size sampling ; Northeast Pacific Ocean ; Blue shark ; Shortfin mako shark
- 刊名：Fisheries Research
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：183
- 期：Complete
- 页码：233-243
- 全文大小：2528 K
文摘
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A longline survey for blue and shortfin mako sharks off California was conducted.
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Age 0–2 blue and shortfin mako sharks comprised the majority of the catch.
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Catch rates varied over time and space.
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Local relative abundance was higher before the early 2000s for both species.
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There were no clear trends in the median sizes of sharks caught by year.