scholarly journals Seasonal variation in the biochemical composition, condition index, and meat yield of the non-indigenous pearl oyster Pinctada imbricata radiata (Leach, 1814) from the West of the Aegean Sea, Greece

2021 ◽  
Author(s):  
John A. Theodorou ◽  
Maria Makri ◽  
Xanthi Douvi ◽  
Alexis Ramfos ◽  
Efthimios Spinos
Keyword(s):  
Seasonal Variation ◽  
Biochemical Composition ◽  
Aegean Sea ◽  
Condition Index ◽  
Pearl Oyster ◽  
The West ◽  
Meat Yield ◽  
Composition Condition ◽  
Pinctada Imbricata

scholarly journals Condition Index, Meat Yield and Biochemical Composition of Mediterranean Mussel (Mytilus Galloprovincialis Lamarck, 1819) from Canakkale Strait, Turkey

2021 ◽  
Vol 36 (1) ◽  
pp. 308-314
Author(s):  
Harun Yildiz ◽  
Pervin Vural ◽  
Sefa Acarli
Keyword(s):  
Total Lipid ◽  
Negative Correlation ◽  
Biochemical Composition ◽  
Mytilus Galloprovincialis ◽  
Condition Index ◽  
Meat Yield ◽  
Open Sea ◽  
Mediterranean Mussel ◽  
The Mean ◽  
Sea Cage

The present study was performed in Çanakkale Strait from September 2012 to August 2013. Biochemical composition (protein, total lipid, moisture, and ash), condition index, and meat yield of Mediterranean mussel, Mytilus galloprovincialis in the net systems hung out the open sea cage units monthly. The mean condition index and meat yield of M. galloprovincialis were found 8.12±0.48 and 16.07±0.70%, respectively. A positive correlation was found between condition index and protein, carbohydrate, and meat yield whereas a negative correlation was seen between condition index and weight, length, lipid, moisture, and ash. In terms of seasons, condition index and protein values were high in autumn, lipid values in summer, and carbohydrate values in spring.

scholarly journals Reproductive biology of the rayed pearl oyster (Pinctada imbricata radiata, Leach 1814) in Izmir Bay

2021 ◽  
Vol 50 (1) ◽  
pp. 87-97
Author(s):  
Selcuk Yigitkurt
Keyword(s):  
Gonad Index ◽  
Reproductive Activity ◽  
Condition Index ◽  
Pearl Oyster ◽  
Strong Positive Correlation ◽  
Spawning Activity ◽  
Izmir Bay ◽  
First Maturity ◽  
Pinctada Imbricata

Abstract The present study was carried out to determine gonadal stages and quality of pearl oyster meat (Pinctada imbricata radiata, Leach, 1814) in Izmir Bay (Turkey). Pearl oyster samples were collected from the study area at a depth of ~5 m between February 2013 and January 2014. The highest and lowest temperature was measured in July and January as 27°C and 14.2°C, respectively. The maximum chlorophyll a value of 4.640 μg l−1 was calculated in May and the lowest value of 1.009 μg l−1 was recorded in April. Individuals reached their first maturity in April. Spawning activity was observed from June to September and the gonad index (GI) was at the highest level during those months. The development was observed from April to February. The overall female to male ratio was 1.32:1 (p < 0.05) and it did not affect the GI (p > 0.05). There is a strong positive correlation between the GI and temperature (p < 0.05). The highest condition index (CI) was recorded in May as 12.31 ± 0.51, whereas the lowest one in January as 7.37 ± 0.22. As a result, this study revealed that the pearl oyster population in the region is characterized by high reproductive activity, especially during the summer months.

Meat Yield, Condition Index, and Biochemical Composition of Mussels (Mytilus galloprovincialisLamarck, 1819) in Sinop, South of the Black Sea

2012 ◽  
Vol 21 (3) ◽  
pp. 198-205 ◽  
Author(s):  
Meryem Yeşim Çelik ◽  
Sedat Karayücel ◽  
İsmihan Karayücel ◽  
Recep Öztürk ◽  
Bora Eyüboğlu
Keyword(s):  
Black Sea ◽  
Biochemical Composition ◽  
Yield Condition ◽  
Condition Index ◽  
The Black Sea ◽  
Meat Yield

The cladocerans of the Aegean Sea: Occurrence and seasonal variation

1973 ◽  
Vol 20 (2) ◽  
pp. 137-143 ◽  
Author(s):  
M. Mora�tou-Apostolopoulou ◽  
V. Kiortsis
Keyword(s):  
Seasonal Variation ◽  
Aegean Sea
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