KFU. Card publication. 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

Form of presentation

Articles in international journals and collections

Year of publication

2019

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Authors, employees of KFU

Andreeva Tatyana Viktorovna, author

Galanin Igor Fedorovich, author

Galanina Anna Petrovna, author

Kuznecov Vladimir Vyacheslavovich, author

Authors, students KFU

Ziganshin Ilshat Ilyasovich, author

Bibliographic description in the original language

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.

Annotation

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.

Keywords

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

The name of the journal

Journal of International Pharmaceutical Research

URL

http://ijprjournals.com/abstract.php?id=1587

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=214876&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Andreeva Tatyana Viktorovna	ru_RU
dc.contributor.author	Galanin Igor Fedorovich	ru_RU
dc.contributor.author	Galanina Anna Petrovna	ru_RU
dc.contributor.author	Kuznecov Vladimir Vyacheslavovich	ru_RU
dc.contributor.author	Ziganshin Ilshat Ilyasovich	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/eng/?p_id=214876&p_lang=2	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	Articles in international journals and collections	ru_RU