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Öğe A Preliminary Survey on Settlement and Recruitment Patterns of Mediterranean Mussel (Mytilus galloprovincialis) in Dardanelles, Turkey(Kafkas Univ, Veteriner Fakultesi Dergisi, 2010) Yildiz, Harun; Lok, Aynur; Acarli, Sefa; Serdar, Serpil; Kose, AysunIn this study, the settlement and growth of the Mediterranean mussel, Mytilus galloprovincialis, was monitored from September 2002 to February 2004 in Kilya Bay, Dardanelles. Water temperature ranged between 8.3-25 degrees C, the average chlorophyll-a was 0.70 mu gL(-1). The mussel abundances on the ropes in Kilya Bay, indicated the highest density of mussels in November 2002 (14184 ind. 0.25 m(-1)) and March 2003 (15485 ind. 0.25 m(-1)) and lowest in February 2004 (3713 ind. 0.25 m(-1)). Settlement was significantly different between samplings (P<0.05). At the end of 18 months. 91.36% of spat on rope was smaller than 2.8 mm. The highest percentage of length class was 1.5-2.79 mm with 40.26%. Even though mussel size reached a maximum of 55.7 mm, their density was very low, 0.20%.Öğe Growth and mortality of Mediterranean mussel Mytilus galloprovincialis Lam., 1819, in relation to size on longline in Mersin Bay, Izmir (Turkey-Aegean Sea)(Blackwell Publishing, 2007) Lok, Aynur; Acarli, Sefa; Serdar, Serpil; Kose, Aysun; Yildiz, HarunThe growth and mortality rate of different size of mussels, Mytilus galloprovincialis, were compared in Mersin bay, Izmir. Mussel sampling was performed on a monthly basis over 1 year, together with hyrobiological parameters. Water temperature, salinity, chlorophyll a, total particulate matter (TPM) and particulate organic carbon (POC) were determined. Average chlorophyll a, TPM and POC values were 3.88 +/- 1.62 mu g L-1, 13.12 +/- 3.68 mg L-1 and 252 +/- 121.89 mu g L-1 respectively. Initial mean lengths of mussels for each size group were 10 mm (9.91 +/- 0.25 mm), 20 mm (20.14 +/- 0.29 mm), 30 mm (30.66 +/- 0.21 mm), 40 mm (40.14 +/- 0.21 mm), 50 mm (50.62 +/- 0.21 mm), 60 mm (59.77 +/- 0.21 mm) and 70 mm (69.47 +/- 0.62 mm). Maximum growth in length occurred during the spring-summer months. The annual length increments of mussel size groups were 46.22, 41.42, 30.3, 28.03, 20.63, 16.34 and 12.03 mm from small to large size groups respectively. Small mussels grew faster than large mussels and reached commercial size at the same time. Mortality was < 5% for all groups at the end of the experiment.Öğe Growth and survival rates of carpet shell clam (Tapes decussatus Linnaeus, 1758) using various culture methods in Sufa (Homa) Lagoon, Izmir, Turkey(Elsevier Sci Ltd, 2007) Serdar, Serpil; Lok, Aynur; Kose, Aysun; Yildiz, Harun; Acarli, Sefa; Goulletquer, PhilippeThe carpet shell clam (Tapes decussatus Linnaeus, 1758) is a candidate species for aquaculture development in Turkish waters. Our study aimed to assess the efficiency of three different methods (i.e., net, box and fenced ground) to maximize clam production. Two different net materials (hard plastic net and polyamide net) were tested in the net method trials. Conducted over 1 year between October 2001 and October 2002, an initial calibrated clam population, characterized by a 26.25 +/- 0.035 mm shell length and 3.85 +/- 0.06 g total wet weight was sampled on a monthly basis to carry out the experiments. By the end of the rearing cycle, clams reached 34.13 +/- 0.38 mm and 9.09 +/- 10.27 g in shell length and total wet weight, respectively. Significant differences in shell length and total wet weight among culture methods (P < 0.05) were reported. Both maximum growth and total wet weight, as well as survival rate (64%) were obtained using the hard plastic net method. Those overall results were likely due to both limited algae accumulation and crab predation when using hard plastic net. Therefore, this method appears the most suitable to develop further larger experimental clam aquaculture trials. Additional studies required to develop clam culture in Turkish waters are discussed. (c) 2007 Elsevier B. V. All rights reserved.Öğe Mussel (Mytilus galloprovincialis Lamarck, 1819) spat settlement and growth performances on artificial collectors in Dardanelles(Ege Univ, 2005) Yildiz, Harun; Lok, Aynur; Serdar, Serpil; Acarli, Sefa; Kose, AysunThis study was conducted in Kilya (Poyraz) Bay, Dardanelles between May 2002 - June 2003. Net rope 1 was hung in May 2002, net rope 2 was hung in June 2002. After one month, attachment of mussel spat on net rope 1, 2 were 2045 individual and 8813 individual in June 2002 and July 2002, respectively. It was determined that reproduction of mussel continued all over the year. But mussels which were pediveliger and postlarvae stages survival rate was determined too low in summer season. After one year, mussel length was found between 30 - 50 mm in net rope 1 collector. On the other hand, mussel length was measured between 20 - 30 mm in net rope collector.Öğe Rope culture of mediterranean mussels (Mytilus galloprovincialis L. 1819) in the Dardanelles.(Ege Univ, 2006) Yildiz, Harun; Lok, Aynur; Kose, Aysun; Serdar, Serpil; Acarli, SefaThe present study was conducted in Kilya (Poyraz) Bay, Dardanelles between May 2002-May 2003. At the beginning of study, mortality rate was high (% 8.34) due to handling stress. Higher mortality rates encountered during summer were minimum in the winter. A significant correlation (R-2=0.90) was found between mussel growth and chlorophyll-a concentrations. Maximum growth rate were obtained when chlorophyll-a concentrations peaked in May and June, whereas growth rate were minimumin winter. Our results indicated that spats reached to market size (> 50 mm) in 12 months.