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タイトル: First record of a leptocephalus larva ingested by a chaetognath
著者: Johnson, Travis B.
Miller, Michael J.
Tsukamoto, Katsumi
Terazaki, Makoto
キーワード: chaetognath
leptocephalus
feeding
Sagitta (Flaccisagitta) hexaptera
Nemichthys scolopaceus
発行日: 2006年6月25日
出版者: International Coastal Research Center, Ocean Research Institute, the University of Tokyo
掲載誌情報: Coastal marine science. Vol.30No.2, 2006.6, pp. 469-472
抄録: An approximately 17mm Nemichthys scolopaceus leptocephalus was found in the gut of a 25mm chaetognath, Sagitta (Flacdsagitta) hexaptera, collected in the North Equatorial Current region of the western North Pacific. The chaetognath was photographed before preservation. The leptocephalus was folded in half and was positioned deep within the hindgut. Although the chaetognath was caught during sampling for leptocephali, its location in the hindgut suggests that the leptocephalus could have been ingested prior to capture by the net. This first record of ingestion of this unique type of fish larva suggests that if contact is made with small leptocephali, it is possible for them to be ingested by relatively large sized chaetognaths that may identify them as potential prey.
URI: http://hdl.handle.net/2261/5672
ISSN: 13493000
出現カテゴリ:Coastal Marine Science
Coastal Marine Science

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