Ontogenetic diet shifts and temporal separations in gonad development of two icefish species in Hongze Lake, China

IF 2.8 2区生物学 Q2 ECOLOGY Freshwater Biology Pub Date : 2024-05-19 DOI:10.1111/fwb.14258

Fei Cheng, Lishuang Zhao, Juan Cao, Meixiang Jia, Yacheng Li, Yushun Chen, Songguang Xie

引用次数: 0

Abstract

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

中国洪泽湖两种冰鱼性腺发育的同源食性转变和时空分离

通过时间、空间和/或营养维度进行资源分配被认为是同域物种之间长期共存的一种机制。我们于2015年7月至2016年6月在中国洪泽湖对两个同域冰鱼物种[Protosalanx hyalocranius (Abbott, 1901) 和Neosalanx taihuensis (Chen, 1956)]进行了月度采样。我们评估了这样一个假设，即性腺发育动态分离和本体食性转变的综合效应促进了两种冰鱼整个生命周期过程中时间和营养维度的资源分配。因此，两个物种在性腺发育过程中的能量和营养投资存在季节性差异。因此，P. hyalocranius（GSI在1月达到峰值）和N. taihuensis（GSI在3月达到峰值）性腺发育的时间分离表明产卵时间和随之而来的幼虫丰度峰值可能存在分离，这表明生命早期阶段猎物消耗的重叠减少。P.hyalocranius的主要食物在其个体发育过程中从桡足类转变为桡足类，然后是虾，最后是鱼，而N. taihuensis的主要食物在其个体发育过程中逐渐从桡足类转变为桡足类。我们的研究结果支持一种关联策略的假说，这种策略结合了时间（性腺发育和随后产卵时间的分离）和营养（个体发育过程中食物的转变）两个维度，用于P. hyalocranius和N. taihuensis之间的资源分配，这可能是同域短寿命鱼类之间长期共存的一个重要机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Freshwater Biology 生物-海洋与淡水生物学

CiteScore

5.90

自引率

3.70%

发文量

162

审稿时长

2 months

期刊介绍： Freshwater Biology publishes papers on all aspects of the ecology of inland waters, including rivers and lakes, ground waters, flood plains and other freshwater wetlands. We include studies of micro-organisms, algae, macrophytes, invertebrates, fish and other vertebrates, as well as those concerning whole systems and related physical and chemical aspects of the environment, provided that they have clear biological relevance. Studies may focus at any level in the ecological hierarchy from physiological ecology and animal behaviour, through population dynamics and evolutionary genetics, to community interactions, biogeography and ecosystem functioning. They may also be at any scale: from microhabitat to landscape, and continental to global. Preference is given to research, whether meta-analytical, experimental, theoretical or descriptive, highlighting causal (ecological) mechanisms from which clearly stated hypotheses are derived. Manuscripts with an experimental or conceptual flavour are particularly welcome, as are those or which integrate laboratory and field work, and studies from less well researched areas of the world. Priority is given to submissions that are likely to interest a wide range of readers. We encourage submission of papers well grounded in ecological theory that deal with issues related to the conservation and management of inland waters. Papers interpreting fundamental research in a way that makes clear its applied, strategic or socio-economic relevance are also welcome. Review articles (FRESHWATER BIOLOGY REVIEWS) and discussion papers (OPINION) are also invited: these enable authors to publish high-quality material outside the constraints of standard research papers.