Commercial rearing of the sea cucumber Apostichopus japonicus in Peter the great bay: Methodical peculiarities and results of the work of a mariculture farm in Sukhodol Bight

Commercial rearing of the sea cucumber Apostichopus japonicus in Peter the great bay: Methodical... Methodical approaches to commercial rearing of sea cucumber at mariculture farms in Peter the Great Bay in the Sea of Japan are discussed. This includes two basic phases, viz., intermediate rearing of underyearlings in cages and sea ranching. The survival rate of juvenile sea cucumbers during intermediate rearing in cages in Sukhodol Bight (Ussuri Bay) was shown to depend on the body size and rearing density of the juveniles and its value varied from 35 to 82%. The survival rate of two-year-old juveniles on artificial reefs reached 85%. Monitoring studies of the bottom sites showed that for the entire period of functioning of the farm, 8 years, a sea cucumber colony with the average distribution density of 1.5 inds/m2 was formed on an area of about 30 ha. The harvest of the commercial production of sea cucumbers purchased at hatcheries can be calculated taking the survival rates of juveniles during the first years of their life into account. The calculation of the production of juvenile sea cucumbers picked by collectors was based on an appraisal of the current state of their aggregation (abundance, biomass, and size structure) with use of conservation protection measures (the allowable harvest rate of 6.4%). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Commercial rearing of the sea cucumber Apostichopus japonicus in Peter the great bay: Methodical peculiarities and results of the work of a mariculture farm in Sukhodol Bight

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074010070072
Publisher site
See Article on Publisher Site

Abstract

Methodical approaches to commercial rearing of sea cucumber at mariculture farms in Peter the Great Bay in the Sea of Japan are discussed. This includes two basic phases, viz., intermediate rearing of underyearlings in cages and sea ranching. The survival rate of juvenile sea cucumbers during intermediate rearing in cages in Sukhodol Bight (Ussuri Bay) was shown to depend on the body size and rearing density of the juveniles and its value varied from 35 to 82%. The survival rate of two-year-old juveniles on artificial reefs reached 85%. Monitoring studies of the bottom sites showed that for the entire period of functioning of the farm, 8 years, a sea cucumber colony with the average distribution density of 1.5 inds/m2 was formed on an area of about 30 ha. The harvest of the commercial production of sea cucumbers purchased at hatcheries can be calculated taking the survival rates of juveniles during the first years of their life into account. The calculation of the production of juvenile sea cucumbers picked by collectors was based on an appraisal of the current state of their aggregation (abundance, biomass, and size structure) with use of conservation protection measures (the allowable harvest rate of 6.4%).

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Jan 18, 2011

References

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