A Yesso Scallop Population Exposed to Climate-Induced and Anthropogenic Habitat Changes in Amur Bay, Sea of Japan

Oceanology ◽  
2019 ◽  
Vol 59 (1) ◽  
pp. 75-85 ◽  
Author(s):  
A. V. Silina
Author(s):  
Irina A. Prushkovskaya ◽  
Ira B. Tsoy

The study of diatoms in the sediments of the Amur Bay (Sea of Japan), formed over the last 2000 years, showed that the sharp short-term drops in the concentration of diatoms coincide with the minima of bromine content, which can be explained by the influence of typhoons or other catastrophic events leading to floods and used later in paleoreconstructions.


Author(s):  
Nina I. Grigoryeva

Исследована скорость роста культивируемых моллюсков подвесного выращивания в зал. Посьета (зал. Петра Великого, Японское море) за 1970–2011 гг. Приведены ростовые характеристики приморского гребешка (Mizuhopecten yessoensis (Jay, 1857)), тихоокеанской мидии (Mytilus trossulus Gould, 1850) и тихоокеанской (гигантской) устрицы (Crassostrea gigas (Thunberg, 1793)) в течение первых трех лет развития. Методами энтропийного анализа исследованы сроки достижения личинками и спатом определенных размеров. Выявлены временные интервалы и рассчитана вероятность наступления этих сроков. Обсуждается влияние техники культивирования на скорость роста. Ключевые слова: скорость роста, личинки, спат, приморский гребешок Mizuhopecten yessoensis, тихоокеанская мидия Mytilus trossulus, тихоокеанская устрица Crassostrea gigas, залив Посьета, Японское море. The growth rates of cultivated mollusks were studied in Possjet Bay (Peter the Great Bay, Sea of Japan) during 1970–2011. The growth characteristics were presented for the Yesso scallop (Mizuhopecten yessoensis (Jay, 1857)), the blue mussel (Mytilus trossulus Gould, 1850), and the Pacific (giant) oyster (Crassostrea gigas (Thunberg, 1793)) during the first three years of life. The average amount of time of the larvae and spat reaching certain sizes was determined using the method of entropy analysis. The time intervals were identified and the probability of these intervals to happen were also calculated. The influence of the cultivation techniques on the growth rate is discussed. Key words: growth rate, larvae, spat, Yesso scallop Mizuhopecten yessoensis, blue mussel Mytilus trossulus, Pacific oyster Crassostrea gigas, Possjet Bay, Sea of Japan.


2019 ◽  
Vol 46 (3) ◽  
pp. 432-442
Author(s):  
S. A. Cherkashin ◽  
M. V. Simokon’ ◽  
T. S. Pryazhevskaya

2015 ◽  
Vol 53 (8) ◽  
pp. 726-734
Author(s):  
A. A. Mar’yash ◽  
N. D. Khodorenko ◽  
V. I. Zvalinskii ◽  
P. Ya. Tishchenko

2019 ◽  
Vol 46 (2) ◽  
pp. 172-177
Author(s):  
D. M. Polyakov ◽  
A. A. Maryash ◽  
A. V. Mozherovsky

The average content of the elements Fe, Mn, Zn, Pb, Cu, Cr, V, Co, Cd, Ni, As, and Mo in the subcolloidal fraction of bottom sediments in the northern and central parts of the Amur Bay (in Russia) was determined. An increase of 5–17% in the content of the metals Pb, Co, Ni, Zn, Cr, V, and As in bottom sediments affected directly by the Razdolnaya River was determined and was found to be associated with sorption on Fe and Mn oxyhydroxides. An increase of 21–55% in the content of the metals Cu and Mo and of the metalloid As compared to their average content in the bottom sediments of the bay was found to be associated with the accumulation by humic substances.


2003 ◽  
Vol 5 (2) ◽  
pp. 82-95 ◽  
Author(s):  
A. A. Begun ◽  
T. Yu. Orlova ◽  
A. Yu. Zvyagintsev

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