Biton Porsmoguer Sebastián, Bănaru Daniela, Béarez Philippe, Dekeyser Ivan, Merchán Fornelino Manuel, Boudouresque Charles F
Aix-Marseille University, UM 110, MIO (Mediterranean Institute of Oceanography), Campus de Luminy, Case 901, Marseille, France ; Asociación CHELONIA, C/Aristóteles, 3, Madrid, Spain.
Aix-Marseille University, UM 110, MIO (Mediterranean Institute of Oceanography), Campus de Luminy, Case 901, Marseille, France.
PLoS One. 2014 Feb 12;9(2):e88488. doi: 10.1371/journal.pone.0088488. eCollection 2014.
The stomach content of 113 individuals of shortfin mako Isurus oxyrinchus was analyzed. Individuals were sampled at landing in Vigo (Spain) and captured by sea-surface long-liners in the vicinity of the Azores Archipelago and between Azores and the Iberian Peninsula, in March and October 2012, and March 2013. Teleosts constituted the dominant item, mainly Atlantic saury Scomberesox saurus (87% of teleost prey). Among them, 94% were deprived of both head and the caudal fin, while the flesh and bones of the body were preserved. The presence of eye's lenses, the number of which was consistent with the number of fish remains, likely rules out the elimination of the heads before ingestion. There is no obvious explanation for this unexpected and unrecorded pattern of digestion.
对113条尖吻鲭鲨（Isurus oxyrinchus）个体的胃内容物进行了分析。这些个体于2012年3月和10月以及2013年3月在西班牙维戈上岸时进行采样，是在亚速尔群岛附近以及亚速尔群岛与伊比利亚半岛之间被海面延绳钓捕获的。硬骨鱼是主要食物，主要是大西洋秋刀鱼（Scomberesox saurus，占硬骨鱼猎物的87%）。其中，94%的鱼头部和尾鳍被去除，而身体的肉和骨头得以保留。眼睛晶状体的存在，其数量与鱼残骸的数量一致，这可能排除了在摄入前去除头部的情况。对于这种意外且未记录的消化模式，没有明显的解释。
