Seasonal and Annual Variations in the Scale Circulus Spacings of Pink Salmon, Oncorhynchus gorbuscha (Walbaum, 1792) (Salmonidae)

Kaev A. M.; Romasenko L. V; Kaev D. A.

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Seasonal and Annual Variations in the Scale Circulus Spacings of Pink Salmon, Oncorhynchus gorbuscha (Walbaum, 1792) (Salmonidae)

机译：Seasonal and Annual Variations in the Scale Circulus Spacings of Pink Salmon, Oncorhynchus gorbuscha (Walbaum, 1792) (Salmonidae)

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Specimens of pink salmon Oncorhynchus gorbuscha (Walbaum, 1792) caught in nearshore waters and rivers of the southeastern coast of Sakhalin Island in 2005-2020 are used as the material for study. The average number of circuli counted on their scales was 36.3 (SD = 2.43), with a range from 33.6 to 38.1 in different year classes. To compare the intercirculus spaces on scales from different fish, all circulus spacing patterns are normalized to 36 circuli. The value of Fisher's test in the assessment of the difference between intercirculus spaces in fish from samples collected during a season averaged at 1.95; in fish collected in different years, it was 29.89, which indicates significant differences in the profile of circulus spacing patterns between fish from different year classes.

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《Russian journal of marine biology》 |2022年第2期|91-100|共10页
作者
Kaev A. M.; Romasenko L. V; Kaev D. A.;
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作者单位

Far Eastern Fed Univ;

Russian Fed Res Inst Fisheries & Oceanog SakhNIRO;

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原文格式 PDF
正文语种英语
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pink salmon; Sakhalin Island; scales; number of circuli; intercirculus spaces;

Seasonal and Annual Variations in the Scale Circulus Spacings of Pink Salmon, Oncorhynchus gorbuscha (Walbaum, 1792) (Salmonidae)

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