The strength of density dependence on body size of young-of-the-year masu salmon, Oncorhynchus masou, varies over ontogeny in Horokashubuto stream, Hokkaido, northern Japan

IF 1.6 3区 农林科学 Q3 FISHERIES
Koh Hasegawa, Jumpei Okado, Genki Sahashi, Sho Fukui, Yuhei Ogura, Kazumasa Ohkuma
{"title":"The strength of density dependence on body size of young-of-the-year masu salmon, Oncorhynchus masou, varies over ontogeny in Horokashubuto stream, Hokkaido, northern Japan","authors":"Koh Hasegawa,&nbsp;Jumpei Okado,&nbsp;Genki Sahashi,&nbsp;Sho Fukui,&nbsp;Yuhei Ogura,&nbsp;Kazumasa Ohkuma","doi":"10.1111/eff.12776","DOIUrl":null,"url":null,"abstract":"<p>The relationships between body size and density of salmonids in natural streams have been well studied, and density-dependent growth (somatic growth) is interpreted as the principal mechanism responsible for the relationship. Moreover, the body size–density relationship is known to vary over ontogeny. However, the relationship has been studied mostly by experimental procedures (e.g. stocking fish into streams), and knowledge about the relationship in natural populations (e.g. no human-induced input of fish) is still inadequate. In this study, we compared the relationships between body size and density of young-of-the-year (YOY) masu salmon, <i>Oncorhynchus masou</i>, between different ontogenetic stages, that is, fry (spring) and juveniles (autumn). We used the monitoring data of YOY body sizes and densities across three study sites collected from Horokashubuto stream in Hokkaido, northern Japan, from 2014 to 2022. In the juvenile stage, YOY body size correlated negatively with increasing density. This pattern is typical of the density dependence of salmonid growth demonstrated in many previous studies. In the fry stage, however, YOY body size correlated positively with increasing density. This study suggested that the patterns of density dependence vary as functions of the ontogenetic stages of salmonids.</p>","PeriodicalId":11422,"journal":{"name":"Ecology of Freshwater Fish","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ecology of Freshwater Fish","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/eff.12776","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"FISHERIES","Score":null,"Total":0}
引用次数: 0

Abstract

The relationships between body size and density of salmonids in natural streams have been well studied, and density-dependent growth (somatic growth) is interpreted as the principal mechanism responsible for the relationship. Moreover, the body size–density relationship is known to vary over ontogeny. However, the relationship has been studied mostly by experimental procedures (e.g. stocking fish into streams), and knowledge about the relationship in natural populations (e.g. no human-induced input of fish) is still inadequate. In this study, we compared the relationships between body size and density of young-of-the-year (YOY) masu salmon, Oncorhynchus masou, between different ontogenetic stages, that is, fry (spring) and juveniles (autumn). We used the monitoring data of YOY body sizes and densities across three study sites collected from Horokashubuto stream in Hokkaido, northern Japan, from 2014 to 2022. In the juvenile stage, YOY body size correlated negatively with increasing density. This pattern is typical of the density dependence of salmonid growth demonstrated in many previous studies. In the fry stage, however, YOY body size correlated positively with increasing density. This study suggested that the patterns of density dependence vary as functions of the ontogenetic stages of salmonids.

日本北部北海道 Horokashubuto 溪流中的马苏鲑(Oncorhynchus masou)幼年体型与密度相关性的强度随个体发育而变化
对自然溪流中鲑科鱼类的体型与密度之间的关系进行了深入研究,密度依赖性生长(体细胞生长)被认为是造成这种关系的主要机制。此外,已知体型与密度的关系会随着个体发育而变化。然而,对这一关系的研究主要是通过实验程序(如向溪流中投放鱼类)进行的,对自然种群(如没有人类诱导的鱼类输入)中这一关系的了解仍然不足。在这项研究中,我们比较了不同发育阶段(即鱼苗(春季)和幼鱼(秋季))的马苏鲑(Oncorhynchus masou)幼鱼体型和密度之间的关系。我们使用了从 2014 年到 2022 年在日本北部北海道 Horokashubuto 溪流采集的三个研究地点的 YOY 体型和密度监测数据。在幼鱼阶段,幼鱼的体型与密度的增加呈负相关。这种模式与之前许多研究中证实的鲑鱼生长密度依赖性具有典型的相似性。然而,在鱼苗阶段,幼鱼的体型与密度的增加呈正相关。这项研究表明,密度依赖性的模式随鲑鱼发育阶段的不同而变化。
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 求助全文
来源期刊
Ecology of Freshwater Fish
Ecology of Freshwater Fish 农林科学-海洋与淡水生物学
CiteScore
4.10
自引率
0.00%
发文量
45
审稿时长
12-24 weeks
期刊介绍: Ecology of Freshwater Fish publishes original contributions on all aspects of fish ecology in freshwater environments, including lakes, reservoirs, rivers, and streams. Manuscripts involving ecologically-oriented studies of behavior, conservation, development, genetics, life history, physiology, and host-parasite interactions are welcomed. Studies involving population ecology and community ecology are also of interest, as are evolutionary approaches including studies of population biology, evolutionary ecology, behavioral ecology, and historical ecology. Papers addressing the life stages of anadromous and catadromous species in estuaries and inshore coastal zones are considered if they contribute to the general understanding of freshwater fish ecology. Theoretical and modeling studies are suitable if they generate testable hypotheses, as are those with implications for fisheries. Manuscripts presenting analyses of published data are considered if they produce novel conclusions or syntheses. The journal publishes articles, fresh perspectives, and reviews and, occasionally, the proceedings of conferences and symposia.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信