Global patterns of sex- and age-specific variation in seabird bycatch

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• 作者：Dimas Gianuca^a ; ^b ; ^{dg286@exeter.ac.uk} ; Richard A. Phillips^b ; ^{raphil@bas.ac.uk} ; Stuart Townley^a ; ^{s.b.townley@exeter.ac.uk} ; Stephen C. Votier^a ; ^{s.c.votier@exeter.ac.uk}
• 关键词：Age ratio ; Incidental mortality ; Seabirds ; Fisheries management ; Sex ratio
• 刊名：Biological Conservation
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：205
• 期：Complete
• 页码：60-76
• 全文大小：2124 K
• 卷排序：205

文摘

We reviewed 44 studies reporting sex and age composition of seabird bycatch. Bycatch was highly biased by sex (65% of 123 samples) and age (92% of 114 samples). Sex- and age-biases in bycatch were mainly related to differential at-sea distributions. Population impacts of bycatch are exacerbated by sex- and age-biased mortality. Recording of seabird sex and age should be routine in bycatch observer programs.