КФУ. Карточка публикации. Size-Weight Composition and Age Structure of White-Eye Bream Abramis Sapa (Pallas, 1814) in the Catches from Sviyaga Bay of the Kuibyshev Reservoir

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SIZE-WEIGHT COMPOSITION AND AGE STRUCTURE OF WHITE-EYE BREAM ABRAMIS SAPA (PALLAS, 1814) IN THE CATCHES FROM SVIYAGA BAY OF THE KUIBYSHEV RESERVOIR

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2019

Язык

русский

Авторы, сотрудники КФУ

Андреева Татьяна Викторовна, автор

Галанин Игорь Федорович, автор

Галанина Анна Петровна, автор

Кузнецов Владимир Вячеславович, автор

Авторы, студенты КФУ

Зиганшин Ильшат Ильясович, автор

Библиографическое описание на языке оригинала

Andreeva T.V., Kuznetsov V.V., Galanin I.F., Galanina A.P. and Ziganshin I.I. Size-Weight Composition and Age Structure of White-Eye Bream Abramis Sapa (Pallas, 1814) in the Catches from Sviyaga Bay of the Kuibyshev Reservoir/ T.V. Andreeva, V.V. Kuznetsov, I.F.Galanin, A.P. Galanina and I.I. Ziganshin // Journal of International Pharmaceutical Research. – 2019.- №4. – P.517–522.

Аннотация

The article deals with the structure and basic biological parameters of white-eye bream Abramis sapa (Pallas, 1814), which give the information about the state of population of this specie in the conditions of Sviyaga Bay of the Kuibyshev Reservoir. Gender, size and age structure of white-eye bream were considered, on the basis of the control catches, obtained as a result of gill net fishing in 2013-2017. It was found, that the male/female ratio was 1:1, with some predominance of females in certain years. Weight and standard length varied over years and were slightly lower than in the previous periods of study. The observed trend towards a certain decrease in the size of white-eye bream may be associated with the presence and availability of food supply, its composition. White-eye bream females have larger sizes and greater body mass than males, and due to this, they can successfully compete for food with main competitors. Moreover, the females are able to avoid pressure of juvenile fish of predatory species. The age structure shows relatively unstable state of the white-eye bream population in the reservoir. The age structure of white-eye bream in the period 2013-2017 was represented by 2-9 years-old fish. The age of most fish ranged from 4 to 5 years; 8-9 years-old fish were noted only in some years and comprised from 3 to 6% of the control catches. The index of Fulton's condition factor to a greater extent reflects the physiological state, first of all, the degree of maturity of reproductive products and the degree of fish feeding, i.e. the amount of food in the digestive tract.

Ключевые слова

white-eye bream, Abramis sapa, age structure, size-weight parameters, the Kuibyshev Reservoir

Название журнала

Journal of International Pharmaceutical Research

URL

https://ijprjournals.com/jipr/index.php/ijpr/article/view/247/250

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https://repository.kpfu.ru/?p_id=214876

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Андреева Татьяна Викторовна	ru_RU
dc.contributor.author	Галанин Игорь Федорович	ru_RU
dc.contributor.author	Галанина Анна Петровна	ru_RU
dc.contributor.author	Кузнецов Владимир Вячеславович	ru_RU
dc.contributor.author	Зиганшин Ильшат Ильясович	ru_RU
dc.date.accessioned	2019-01-01T00:00:00Z	ru_RU
dc.date.available	2019-01-01T00:00:00Z	ru_RU
dc.date.issued	2019	ru_RU
dc.identifier.citation	Andreeva T.V., Kuznetsov V.V., Galanin I.F., Galanina A.P. and Ziganshin I.I. Size-Weight Composition and Age Structure of White-Eye Bream Abramis Sapa (Pallas, 1814) in the Catches from Sviyaga Bay of the Kuibyshev Reservoir/ T.V. Andreeva, V.V. Kuznetsov, I.F.Galanin, A.P. Galanina and I.I. Ziganshin // Journal of International Pharmaceutical Research. – 2019.- №4. – P.517–522.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=214876	ru_RU
dc.description.abstract	Journal of International Pharmaceutical Research	ru_RU
dc.description.abstract	The article deals with the structure and basic biological parameters of white-eye bream Abramis sapa (Pallas, 1814), which give the information about the state of population of this specie in the conditions of Sviyaga Bay of the Kuibyshev Reservoir. Gender, size and age structure of white-eye bream were considered, on the basis of the control catches, obtained as a result of gill net fishing in 2013-2017. It was found, that the male/female ratio was 1:1, with some predominance of females in certain years. Weight and standard length varied over years and were slightly lower than in the previous periods of study. The observed trend towards a certain decrease in the size of white-eye bream may be associated with the presence and availability of food supply, its composition. White-eye bream females have larger sizes and greater body mass than males, and due to this, they can successfully compete for food with main competitors. Moreover, the females are able to avoid pressure of juvenile fish of predatory species. The age structure shows relatively unstable state of the white-eye bream population in the reservoir. The age structure of white-eye bream in the period 2013-2017 was represented by 2-9 years-old fish. The age of most fish ranged from 4 to 5 years; 8-9 years-old fish were noted only in some years and comprised from 3 to 6% of the control catches. The index of Fulton's condition factor to a greater extent reflects the physiological state, first of all, the degree of maturity of reproductive products and the degree of fish feeding, i.e. the amount of food in the digestive tract.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	white-eye bream	ru_RU
dc.subject	Abramis sapa	ru_RU
dc.subject	age structure	ru_RU
dc.subject	size-weight parameters	ru_RU
dc.subject	the Kuibyshev Reservoir	ru_RU
dc.title	Size-Weight Composition and Age Structure of White-Eye Bream Abramis Sapa (Pallas, 1814) in the Catches from Sviyaga Bay of the Kuibyshev Reservoir	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU