Yazar "Serdar, S." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Determination of the growth performance ofMytilus galloprovincialisin nets at Gokceada Island
    (Taylor & Francis Ltd, 2020) Keskin, I; Ekici, A.; Serdar, S.
    In this study, which was conducted between November 2017 and October 2018 at Gokceada Island, the specific growth rate (SGR), a length-weight correlation with a regression to determine the growth pattern of mussel spat, and survival rates of Mediterranean mussel spat were determined. Mediterranean mussels collected from the wild (N = 120) were grouped on each net (N = 40). Then, chlorophyll-a, water temperature, salinity, pH and particulate matter values were collected on a monthly basis, in triplicate. the mean chlorophyll-a was 0.21 +/- 0.12 mu g L-1, mean water temperature was 18.32 +/- 5.46 degrees C, mean salinity was 34.65 +/- 2.38 parts per thousand, and mean pH was 8.12 +/- 0.04, while the composite of total particulate matter (TPM) was 17.88 +/- 11.25 mg L-1. Length-weight correlation analysis indicated a strong correlation between the two parameters (r = 0.91). According to the results of the regression analysis performed between length and weight, a growth of negative allometry was detected in Mediterranean mussels (W = 0.0003L(2.7254)). Although the mussel survival rate was 77.5% in August 2018, it decreased to 13.3% by the end of the study in October 2018, due to the increase in the quantity of fouling organisms that gathered on the nets. At the beginning of the study, in November 2017, the average length was 19.58 +/- 0.29 mm; 12 months later, in October 2018, it had increased to 43.77 +/- 1.02 mm. These data indicate that according to the general linear model analysis, temperature was the only parameter affecting Mediterranean mussel growth among the environmental variables TPM, particulate organic matter, particulate inorganic matter, temperature, salinity, chlorophyll-a and pH. Since chlorophyll-a, which is an important parameter for the growth of mussels, remained at low levels in this study, its effect on growth has not been determined statistically.
  • Küçük Resim Yok
    Öğe
    Impact of planting season on growth and survival of the carpet shell clam (Tapes decussatus, linnaeus 1758)
    (Soc Israeli Aquaculture & Marine Biotechnology, 2007) Serdar, S.; Lok, A.
    The growth and survival of juvenile carpet shell clams, Tapes decussatus, planted in autumn (October-April) and spring (April-October) in Sufa Lagoon near Izmir, Turkey, were compared. Clams of 20.39 +/- 0.24 mm were sown in October (Group I) and clams of 20.43 +/- 0.23 mm were sown in April (Group 11). Seedlings were sown in plastic boxes at a density of 160 clarn/m(2). Temperature ranged 8-32 degrees C, salinity 38-43 parts per thousand, and chlorophyll a 4.04-30.93 mu g/l. In six months, the clams in Group I reached 23.16 mm while the clams in Group II reached 24.02 mm (p < 0.05). Survival was 80% in Group I and 77.5% in Group II (p>0.05).