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Dynamics of Stock and the Existing Harvest Control Rule of NEA Cod

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dc.contributor.author Borisov, V.M.
dc.date.accessioned 2021-01-20T07:41:38Z
dc.date.available 2021-01-20T07:41:38Z
dc.date.issued 2015
dc.identifier.citation Commercial species and their biology: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 155. - P. 20-30 ru_RU
dc.identifier.isbn 978-85382-453-9
dc.identifier.issn 2307-3497
dc.identifier.uri http://dspace.vniro.ru/handle/123456789/7444
dc.description.abstract The setae of the mouthparts of juveniles and adults of the giant freshwater prawn Macrobrachium rosenbergii and the australian red claw crayfish Cherax quadricarinatus was examined. Prawn M. rosenbergii and crayfish C. quadricarinatus are important objects of world freshwater aquaculture. Main types of setae and its distribution on the mouthparts were determined. The interpretation of setae with relation to intensity and direction of mechanical impacts is given. The structures on the setae surface vary in dependence of mechanical load intensity. The following sequence of structures types as long thin setulas, short setulas, denticles, the absence of external elements combined with thick shorten setaes, have direct correlation with intensity of the mechanical impact. The presence of denticles and ordering short setulas indicates that only one side of setae is under the mechanical action. The fact of impact of significant body size transformation during ontogenesis on the setae distribution on the mouthparts was established. The tendency of length reduction and/or disappearance of setulas and denticles was observed. Lenth of setae decreases against the body size. The increase of number of setae takes place and tight grouping of main types of setae occurs. An assumption made that with increase of body size the efficiency of separate setulas decreases and, for adult individual, groups of setae should be considered as functional units. ru_RU
dc.language.iso other ru_RU
dc.publisher VNIRO Publishing ru_RU
dc.subject The Barents Sea ru_RU
dc.subject Cod ru_RU
dc.subject Stocks ru_RU
dc.subject Fishery ru_RU
dc.subject Regulation ru_RU
dc.subject Spawning ru_RU
dc.title Dynamics of Stock and the Existing Harvest Control Rule of NEA Cod ru_RU
dc.type Article ru_RU

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