Effects of Horseshoe Crab Harvest in Delaware Bay on Red Knots: Are Harvest Restrictions Working?

被引：75

作者：

Niles, Lawrence J.

Bart, Jonathan ^{[1
]}

Sitters, Humphrey P. ^{[2
]}

Dey, Amanda D. ^{[3
]}

Clark, Kathleen E. ^{[3
]}

Atkinson, Phillip W. ^{[4
]}

Baker, Allan J.

Bennett, Karen A.

Kalasz, Kevin S.

Clark, Nigel A. ^{[4
]}

Clark, Jacquie ^{[4
]}

Gillings, Simon ^{[4
]}

Gates, Albert S.

Gonzalez, Patricia M.

Hernandez, Daniel E.

Minton, Clive D. T. ^{[5
]}

Morrison, R. I. Guy ^{[6
]}

Porter, Ronald R.

Ross, R. Ken ^{[7
]}

Veitch, C. Richard

机构：

[1] US Geol Survey, Forest & Rangeland Ecosyst Sci Ctr, Snake River Field Stn, Boise, ID USA

[2] Int Wader Study Grp Bulletin, Exeter, Devon, England

[3] New Jersey Div Fish & Wildlife, Endangered & Nongame Species Program, Trenton, NJ USA

[4] British Trust Ornithol, Norfolk, VA USA

[5] Victoria Wader Studies Grp, Melbourne, Vic, Australia

[6] Carleton Univ, Natl Wildlife Res Ctr, Ottawa, ON K1S 5B6, Canada

[7] Populat Management Unit, Ottawa, ON, Canada

来源：

BIOSCIENCE | 2009年 / 59卷 / 02期

关键词：

red knot; Calidris canutus rufa; Delaware Bay; horseshoe crab; Limulus polyphemus; LIMULUS-POLYPHEMUS; MIGRANT SHOREBIRDS; BODY STORES; POPULATION TRENDS; ABUNDANCE; EGGS; SURVIVAL; SITE;

D O I：

10.1525/bio.2009.59.2.8

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Each May; red knots (Calidris canutus rufa) congregate in Delaware Bay during their northward migration to feed on horseshoe crab eggs (Limulus polyphemus) and refuel for breeding in the Arctic. During tire 1990s, the Delaware Bay harvest of horseshoe crabs for bait increased 10 fold, leading to a more than 90% decline in the availability of their eggs for knots. The proportion of knots achieving weights of more than 180 grains by 26-28 May, their main departure period, dropped from 0.6-0.8 to 0.14-0.4 over 1997-2007. During tire same period, the red knot population stopping in Delaware Bay declined by more than 75%, in part because the annual survival rate of adult knots wintering in Tierra del Fuego declined. Despite restrictions, the 2007 horseshoe crab harvest was still greater than the 1990 harvest, and no recovery of knots was detectable. We propose an adaptive management strategy with recovery goals and annual monitoring that, if adopted, will both allot,, red knot and horseshoe crab populations to rccover and permit a sustainable harvest of horseshoe crabs.

引用

页码：153 / 164

页数：12

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Atkinson, Philip W. ;

Baker, Allan J. ;

Bennett, Karen A. ;

Clark, Nigel A. ;

Clark, Jacquie A. ;

Cole, Kimberly B. ;

Dekinga, Anne ;

Dey, Amanda ;

Gillings, Simon ;

Gonzalez, Patricia M. ;

Kalasz, Kevin ;

Minton, Clive D. T. ;

Newton, Jason ;

Niles, Lawrence J. ;

Piersma, Theunis ;

Robinson, Robert A. ;

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