帆鳍鲷（Poecilia latipinna）及其共生的性寄生鱼，雌核发育的亚马逊鲷（Poecilia formosa）的摄食率。

Feeding rates in the sailfin molly Poecilia latipinna and its coexisting sexual parasite, the gynogenetic Amazon molly Poecilia formosa.

机构信息

Systematics and Evolutionary Biology, Institute of Biology and Environmental Sciences, University of Oldenburg, Carl von Ossietzky-Str 9-11, 26129 Oldenburg, Germany.

出版信息

J Fish Biol. 2010 Jul;77(1):285-91. doi: 10.1111/j.1095-8649.2010.02672.x.

DOI:10.1111/j.1095-8649.2010.02672.x

PMID:20646153

Abstract

Feeding rates of the gynogenetic Amazon molly Poecilia formosa and one of its sexual hosts, the sailfin molly Poecilia latipinna, were measured under winter and summer temperature conditions. Food consumption of the unisexual P. formosa in winter conditions was significantly higher than that of P. latipinna, and it is hypothesized that the resulting food stress might have an important influence on the population composition of these closely related fishes via higher winter mortality in P. formosa.

摘要

在冬季和夏季温度条件下，测量了雌核发育的亚马逊丽鱼（Poecilia formosa）和其一个性宿主帆鳍丽鱼（Poecilia latipinna）的摄食率。在冬季条件下，雌雄同体的 P. formosa 的食物消耗量明显高于 P. latipinna，据推测，这种食物压力可能通过在 P. formosa 中更高的冬季死亡率对这些密切相关的鱼类的种群组成产生重要影响。