REPRODUCTIVE CONDITION OF THE TROPICAL BLACK-LIP PEARL OYSTER, Pinctada margaritifera (LINNAEUS) IN TWO FOOD CONDITIONS

DC Field Value Language
dc.contributor.author 강도형 -
dc.contributor.author 김한준 -
dc.contributor.author 이대원 -
dc.contributor.author Abu Affan -
dc.contributor.author 박흥식 -
dc.date.accessioned 2020-07-17T01:50:08Z -
dc.date.available 2020-07-17T01:50:08Z -
dc.date.created 2020-02-11 -
dc.date.issued 2008-05-23 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/30019 -
dc.description.abstract Reproductive condition and spawning of black-lip pearl oyster, Pinctada margaritifera was studied in two regimes of food; food-added (AF) and no food-added (NAF) using cultured oysters. Prior to conduct the experiment, 20 oysters of initial sample were collected to observe the gonadal condition. Two different regimes were assessed in the tanks supplied with 10 &micro;m filtered seawater for two months. In AF treatment, oysters were fed daily with algal paste of 200 cells &micro;l-1. Gonad samples were taken from the oysters every month and processed for histological analysis. Condition index (CI) and gonadal maturity were estimated to assess reproductive status, and muscular dry weight (MDW) were calculated to assess an energy storage of oyster in each sampling date. Most of initial oysters were in fully matured. Water temperature and salinity fluctuated from 28.2 to 31.2ºC and from 33.8 to 34.5 ppt, respectively; two parameters were not influenced in oyster reproduction during the study. The CI of oysters in both regimes were constant until a month, but the CI significantly decreased to the lowest level in NAF in two months later (p<0.05). Oyster MDW in AF was not changed in each sampling date while the MDW decreased significantly at two months later in the NAF. Oysters in the AF were spawned in a month later while the ripe gametes of oysters were still remained in the NAF. The AF showed more suitable condition to ready for spawning than the NAF. Interestingly, oysters were not spawned artificially at one month later in the NAF because oysters were maintained their energy level in food lack condition. Our data suggested that the food supply is very important factor to accelerate the spawning activity of P. margartifera in brooding season. -
dc.description.uri 1 -
dc.language English -
dc.publisher WORLD AQUACULTURE SOCIETY -
dc.relation.isPartOf World Aquaculture 2008 -
dc.title REPRODUCTIVE CONDITION OF THE TROPICAL BLACK-LIP PEARL OYSTER, Pinctada margaritifera (LINNAEUS) IN TWO FOOD CONDITIONS -
dc.type Conference -
dc.citation.conferencePlace US -
dc.citation.endPage 309 -
dc.citation.startPage 309 -
dc.citation.title World Aquaculture 2008 -
dc.contributor.alternativeName 강도형 -
dc.contributor.alternativeName 김한준 -
dc.contributor.alternativeName 이대원 -
dc.contributor.alternativeName Abu Affan -
dc.contributor.alternativeName 박흥식 -
dc.identifier.bibliographicCitation World Aquaculture 2008, pp.309 -
dc.description.journalClass 1 -
Appears in Collections:
Jeju Research Institute > Jeju Marine Research Center > 2. Conference Papers
Marine Environmental & Climate Research Division > Marine Ecosystem Research Center > 2. Conference Papers
Marine Resources Research Division > Marine Bio-Resources Research Unit > 2. Conference Papers
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