Results 51 to 60 of about 2,117 (203)
Behavior of Juvenile Walleye Pollock Theragra chalcogramma in Relation to Time and Illuminance.
小型水槽においてスケトウダラ稚魚の活動性への時刻と照度の影響を調べるため, 明暗(LD), 恒常暗(DD), 恒常明(LL)の3種類の条件下での行動と数種の照度下(0.1,1.0,100lx)における対網行動を記録した。スケトウダラ稚魚の活動量は, LD条件の下で消灯する18 : 00以後に減少し, 点灯する6 : 00から増加した。しかし, 同様のリズムは他の条件では認められず, 概日リズムは確認されなかった。対網行動から推定された網の通過率の照度にともなう減少はゆるやかであった。活動リズムに着目し, 曳網類による昼夜での採取率も推定した。
Fujimori, Yasuzumi +4 more
openaire +2 more sources
Feeding and growth of seasonal cohorts of larval walleye pollock (Theragra chalcogramma) in Auke Bay, Alaska [PDF]
Thesis (M.S.) University of Alaska Fairbanks, 1989Larval walleye pollock, Theragra chalcogramma (Pallas), typically occur in the water column in synchrony with peak densities of prey.
Sterritt, David A.
core
Distribution of Walleye Pollock Theragra chalcogramma off Southwestern Hokkaido in the Japan Sea in Spring [PDF]
In order to elucidate the distribution pattern of walleye pollock Theragra chalcogramma off southwestern Hokkaido in the Japan Sea, trawling and acoustic surveys, and hydrographic observations were conducted in early April from 1989 to 1993.
高橋, 豊美 +5 more
core +1 more source
First record of intersexuality in walleye pollock Theragra chalcogramma (Pallas, 1814)
We report the first record of intersexuality in walleye pollockTheragra chalcogramma(Pallas, 1814) caught in the Bering and Okhotsk seas. Prevalence of intersexuality was low (0.0003–0.0016%). We describe intersex gonads at the macro- and microscopic levels (using histological methods).
K. Zhukova, A.M. Privalikhin
openaire +1 more source
The aim of this paper was to investigate the critical aggregation concentration and aggregation number of acid-soluble collagen from walleye pollock (Theragra chalcogramma) skin using the fluorescence probe pyrene.
Zhao, Xue, Li, Bafang, Yan, Mingyan
core
No abstracts are to be cited without prior reference to the author.The age-0 stage of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea is an important component of the pelagic food web.
A. J. Paul (12173387) +2 more
core +1 more source
Recent Year Class Strengths of Walleye Pollock (Theragra chalcogramma) Pacific Population and Oceanographic Conditions for First-feeding Pollock Larvae [PDF]
To understand the survival in the first-feeding stage of walleye pollock, Theragra chalcogramma, of the Pacific population in strong year classes(1991, 1994, 1995 and 2000), hydrographic and food conditions in winter in Funka Bay (nursery ground for ...
中谷, 敏邦
core
To develop a lower salt traditional seafood product, frozen intestines of Theragra chalcogramma (Alaska pollock) were thawed, washed, fermented and then seasoned to make Changran Jeotkal.
Jo, C. +5 more
core +1 more source
Prey-predator interactions of walleye pollock Theragra chalcogramma and water temperature.
The influence of water temperatures on prey-predator interaction of walleye pollock was ex-amined in the eastern Bering Sea during summers from 1979 to 1984. Walleye pollock was parti-tioned into 18 categories by sex and body lengths. The common occurrence of Greenland turbot, arrowtooth flounder, Pacific halibut, flathead sole, large Pacific cod ...
Kihara, Kohei, Shimada, Allen M.
openaire +2 more sources
We collected and reared Theragra chalcogramma walleye pollock brood-stock for use in natural spawning tests and undertook to obtain domestic pollock via fertilized egg capture, development of fertilized eggs, and absorption of yolk sac after hatching ...
Seo Joo-young, O. Kwon
semanticscholar +1 more source

