Loggerhead turtles Caretta caretta (Linnaeus) preying on the invading gastropod Rapana venosa (Valenciennes) in the Rio de la Plata Estuary

被引：12

作者：

Carranza, Alvar ^{[1
,3
]}

Estrades, Andres ^{[3
,4
]}

Scarabino, Fabrizio ^{[3
,5
]}

Segura, Angel ^{[2
,3
]}

机构：

[1] Fac Ciencias, UNDECIMAR, Montevideo 11400, Uruguay

[2] Fac Ciencias, Secc Oceanol, Montevideo 11400, Uruguay

[3] Museo Nacl Hist Nat, Montevideo, Uruguay

[4] KARUMBE, Montevideo, Uruguay

[5] Direcc Nacl Recursos Acuat, Montevideo, Uruguay

来源：

MARINE ECOLOGY-AN EVOLUTIONARY PERSPECTIVE | 2011年 / 32卷 / 02期

关键词：

Biological invasions; Caretta caretta; predation; Rapana venosa; Uruguay; FEEDING ECOLOGY; BLACK-SEA; MURICIDAE; WHELK; URUGUAY;

D O I：

10.1111/j.1439-0485.2010.00424.x

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Here we report the first observations of loggerhead turtles Caretta caretta preying on a conspicuous molluscan invader, the rapa whelk Rapana venosa. An average number of 136 opercula were found in stomach contents of five turtles, the curved carapace length ranging in from 51 to 112 cm. No other alimentary items were found in the turtles analyzed. We suggest that the rapa whelk may constitute up to 100% of the diet for immature and mature loggerheads in the Rio de la Plata estuary (Uruguay), highlighting the plastic nature of the foraging behavior of loggerheads.

引用

页码：142 / 147

页数：6

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