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Background Chum salmon (Oncorhynchus keta) is one of the most abundant Pacific salmon species and spends much of its life in the open ocean. Due to its offshore distribution, knowledge of the migration ecology of chum salmon, including vertical habitat ...
Takaaki K. Abe +7 more
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At the northwestern coast of the Okhotsk Sea, pink salmon finds its spawning grounds both in big rivers (Uda, Okhota, and some other) and small streams because the size, slopes, and structure of alluvial sediments of the majority of local water bodies ...
Sergey F. Zolotukhin +2 more
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Seasonal Changes in the Total Lipid Content of Immature Chum Salmon in the Bering Sea and North Pacific Ocean during the Summer and Fall of 2002-2004 [PDF]
本報告は2002年から2004年の夏期(6月-7月)と秋期(9月)にベーリング海および北太平洋で採集された未成熟サケの筋肉内総脂質含量と水分含量に関する報告である。合計1282尾の未成熟サケの筋肉からクロロホルムとメタノールを用いて抽出し重量法により総脂質量を測定した。夏期に採取した海洋生活1年の若齢魚では総脂質含量は秋期に採集された個体より有意に低い値を示した。夏期に採取した海洋生活1年の個体の筋肉内平均総脂質含量はそれぞれ2002年で1.8%(供試尾数48尾)、2003年で2.1%(供試尾数89尾)、
ナカジマ, アユミ +23 more
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Relationships between brown bears and chum salmon at McNeil River, Alaska [PDF]
Thesis (M.S.) University of Alaska Fairbanks, 2007Since 1967, the McNeil River State Game Sanctuary (MRSGS) has been managed by the Alaska Department of Fish and Game to 'provide permanent protection for brown bears'. Up to 144 bears have been identified
Peirce, Joshua McAllister
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Bioenergetics and survival of chum (Oncorhynchus keta) and pink (O. gorbuscha) salmon in heated seawater [PDF]
The use of heated seawater for enhancing the culture of Pacific salmon was investigated. Food consumption rate, gross food conversion efficiency, growth rate, and survival of chum (Oncorhynchus keta) and pink (O.
Kepshire, Bernard Michael
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Novice fisherman David Warnberg with a nice chum salmon taken at Alexander Creek, Alaska.
Roberts, Jack
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esults of salmon fishery in the Khabarovsk Region in 2024
The catch of pacific salmon in the water bodies of the Khabarovsk Territory in 2024 was initially forecasted in 51.7∙103 t. During the fishing season, one adjustment was made for pink salmon in the Primorye fishing subzone where the allowable annual ...
D. V. Kotsyuk, V. I. Ostrovsky
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Behavioral experiments and measurements of magnetic remanences in chum salmon fry were made in order to examine whether or not salmon use the magnetic compass to orient their migratory movements in open sea.
北村, 章二 +11 more
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Diurnal Variations in the Upstream Migration of Adult Masu Salmon (Oncorhynchus masou) in Rivers of Hokkaido during the Spawning Season [PDF]
産卵期におけるサクラマス親魚の遡上活動の日周変動について、十勝川水系猿別川と尻別川水系目名川の下流に位置するサケマス捕獲場で観察した。サクラマスの遡上活動は日中に活発化して夜間にはほとんど移動しないのに対し、同時に採捕されたサケおよびカラフトマスは夜間にも遡上し、日中の遡上時間帯もサクラマスとサケ間で有意に異なった。上流域を産卵場として選択するサクラマスの遡上行動は、流れの中で遡上障害物を視覚で認識することの出来る日中に活発化すると考えられた。Diurnal variations of adult ...
マヤマ, ヒロシ +2 more
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To clarify the migration routes of juvenile chum salmon (Oncorhynchus keta) originating from Japanese rivers, Japan-Russia cooperative surveys were undertaken in waters off southeastern Hokkaido, Sakhalin, and the Kuril Islands (excluding the 12 nautical
上野, 康弘 +5 more
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