Extremely early maturity found in Okinawan gobioid fishes

被引：29

作者：

Kon, T ^{[1
]}

Yoshino, T ^{[1
]}

机构：

[1] Univ Ryukyus, Fac Sci, Dept Marine Sci, Okinawa 9030213, Japan

来源：

ICHTHYOLOGICAL RESEARCH | 2002年 / 49卷 / 03期

关键词：

gobioidei; progenesis; warm waters; otolith; daily increments;

D O I：

10.1007/s102280200031

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Extremely small animals including fishes have been reported with discussion of the causes and consequences of their miniaturization. Here we demonstrate, for the first time, very early (i.e., 23-60 days old and 42-67 days old) sexual maturity in two groups of gobioid fishes (Schindleria and Paedogobius, respectively) in warm water, based on the otolith increments. The generation time of Schindleria is the shortest known among vertebrates under natural conditions. We discuss the occurrence and evolutionary significance of the progenesis found in gobioid fishes.

引用

页码：224 / 228

页数：5

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