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The effects of environmental factors on survival, growth and biochemical composition of transplanted oysters ( O streaedulis L innaeus, 1758) from A egean Sea to southern B lack Sea
Author(s) -
Çelik Meryem Yeşim,
Karayücel Sedat,
Karayücel İsmihan,
Eyüboğlu Bora,
Öztürk Recep
Publication year - 2015
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.12253
Subject(s) - biology , oyster , salinity , zoology , seawater , condition index , physiological condition , fishery , ecology
This study examined survival, growth rate and biochemical composition of oysters ( O strea edulis ) when transplanted from A egean Sea to southern B lack Sea (Sinop) and maintained offshore in a submerged long‐line from December 2008 to December 2009. In December 2009, the mean length and live weight were 92.52 ± 1.40 mm and 109.60 ± 2.41 g respectively. Mean specific growth rate (SGR) was found as 1.29 ± 0.16%. Meat yield ranged from 7.90 to 11.47%. Mean moisture and ash were 81.40 ± 0.52% and 9.50 ± 0.55% respectively. Protein content was between 36.57% and 61.31% with a mean of 50.17 ± 2.13%, while lipid content was between 4.83% and 10.86% with a mean of 7.74 ± 0.49%. Carbohydrate content was between 20.88% and 46.89% with a mean of 32.59 ± 2.38%. The study demonstrated that protein, lipid and carbohydrate were used for different metabolic needs of oysters. Mortality was dependent on physiological stress related to the gonadal activity, temperature and inorganic matter in seawater. Consequently, the low salinity rate has a negative impact on growth rate of oyster. However, there was not a serious adaptation problem in transplanted oysters from A egean Sea to B lack Sea.