交配疤痕揭示了未成熟雌性蓝鲨（Prionace glauca）的配偶大小。

Mating scars reveal mate size in immature female blue shark Prionace glauca.

作者信息

Calich H J, Campana S E

机构信息

Department of Biology, Dalhousie University, Halifax, NS, B3H 4J1, Canada.

Population Ecology Division, Bedford Institute of Oceanography, Dartmouth, NS, B2Y 4A2, Canada.

出版信息

J Fish Biol. 2015 Jun;86(6):1845-51. doi: 10.1111/jfb.12671. Epub 2015 Apr 23.

DOI:10.1111/jfb.12671

PMID:25903032

Abstract

The objective of this study was to determine the size and maturity status of the male blue sharks Prionace glauca attempting to mate with small, immature females in the north-west Atlantic Ocean. The relationship between male curved fork length (LFC ) and jaw gape was used in conjunction with the diameter of the mating scar to estimate the LFC and infer the maturity status of the male shark that produced the mating scar. The results indicate that mature males with a mean ± s.d. LFC of 218 cm ± 23 cm were attempting to mate with sexually immature females.

摘要

本研究的目的是确定在西北大西洋试图与小型未成熟雌鲨交配的雄性大青鲨（Prionace glauca）的大小和成熟状态。利用雄性曲叉长（LFC）与颌间距之间的关系，并结合交配疤痕的直径来估计LFC，并推断产生交配疤痕的雄鲨的成熟状态。结果表明，平均±标准差LFC为218厘米±23厘米的成熟雄鲨试图与性未成熟的雌鲨交配。