{"title":"Pink Salmon Oncorhynchus gorbuscha (Salmoniformes, Salmonidae) from the Continental Coast of the Sea of Okhotsk. Communication 2: Juveniles","authors":"S. L. Marchenko","doi":"10.1134/s1063074023070106","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Data on juvenile pink salmon from the continental coast of the Sea of Okhotsk for the 1960th–2010th are summarized. Timing and dynamics of downstream migration, qualitative characteristics, and feeding habits are considered. Brief information on the early marine life period is provided. Mass downstream migration of pink salmon fry begins when river water warms up to 2.5–4.0°C. Pink salmon fry migrate from rivers to the coastal marine waters diurnally. During downstream migration, their body length and weight usually do not vary significantly, but the proportion of fish that have switched to external feeding increases. On a long-term scale, the relative abundance of externally feeding juveniles in rivers is higher in the years of weak spring floods.</p>","PeriodicalId":49584,"journal":{"name":"Russian Journal of Marine Biology","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Marine Biology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1134/s1063074023070106","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Data on juvenile pink salmon from the continental coast of the Sea of Okhotsk for the 1960th–2010th are summarized. Timing and dynamics of downstream migration, qualitative characteristics, and feeding habits are considered. Brief information on the early marine life period is provided. Mass downstream migration of pink salmon fry begins when river water warms up to 2.5–4.0°C. Pink salmon fry migrate from rivers to the coastal marine waters diurnally. During downstream migration, their body length and weight usually do not vary significantly, but the proportion of fish that have switched to external feeding increases. On a long-term scale, the relative abundance of externally feeding juveniles in rivers is higher in the years of weak spring floods.
期刊介绍：
The Russian Journal of Marine Biology was founded in 1975 by Alexey V. Zhirmunsky, member of the Russian Academy of Sciences. The Russian Journal of Marine Biology covers a wide range of research and some applied aspects of marine biology as a synthetic science related to various fields of study on marine biota and environment. It presents fundamental research on biological processes at molecular, cellular, organismal, and populational levels in marine organisms. Consideration is given to marine objects as models in life sciences. The journal also publishes papers dedicated to events in Russian and international marine biological science and the history of biology.
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