EN
Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea)
Öz
AbstractThe present paper reports the abundance and biomass of Dasyatis centroura (Mitchill, 1815), D. marmorata (Steindachner, 1892), D. pastinaca (Linnaeus, 1758), and D. tortonesei Capapé, 1975 at various depth levels and seasons in the Gulf of Antalya, and total length-weight (TL-W), disc length–weight (DL-W) and disc width weight (DW-W) relationship of 391 individuals of D. pastinaca, 21 individuals of D. marmorata, and five individuals of D. centroura, caught in trawling surveys. A total of 116 hauls were carried out, between August 2009 and April 2010 seasonally in the Gulf of Antalya, at six stations and six depth levels (25, 50, 75, 100, 150, 200 m) using a commercial bottom trawl. Dasyatis species were sampled from 65 hauls and the frequency of occurrence was 56.03% for D. pastinaca, 11.21% for D. marmorata, 2.59% for D. centroura and 0.86% for D. tortonesei. The overall mean abundance and biomass was 55.32 ind./km2 and 107.53 kg/km2 for D. pastinaca; 2.54 ind./km2 and 2.56 kg/km2 for D. marmorata, 0.50 ind./km2 and 25.97 kg/km2 for D. centroura and 0.25 ind./km2 and 1.34 kg/km2 for D. tortonesei. The general TL-W, DL-W and DW-W were described by the equations: W = 0.023*TL2.76; W = 0.0999*DL2.74 and W = 0.037*DW2.97 for D. pastinaca; W = 0.002*TL3.23; W = 0.034*DL3.02 and W = 0.0045*DW3.59 for D. marmorata; and W = 0.00001*TL4.04; W = 1.481*DL2.16 and W= 0.141*DW2.59 for D.centroura.
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
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Bölüm
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Yayımlanma Tarihi
20 Eylül 2015
Gönderilme Tarihi
20 Eylül 2015
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 2015 Cilt: 21 Sayı: 2
APA
Özbek, E. Ö., Çardak, M., & Kebapçioğlu, T. (2015). Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea). Journal of Black Sea / Mediterranean Environment, 21(2), 169-190. https://izlik.org/JA99GC24YX
AMA
1.Özbek EÖ, Çardak M, Kebapçioğlu T. Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea). Journal of Black Sea / Mediterranean Environment. 2015;21(2):169-190. https://izlik.org/JA99GC24YX
Chicago
Özbek, Elif Özgür, Mine Çardak, ve Turhan Kebapçioğlu. 2015. “Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea)”. Journal of Black Sea / Mediterranean Environment 21 (2): 169-90. https://izlik.org/JA99GC24YX.
EndNote
Özbek EÖ, Çardak M, Kebapçioğlu T (01 Ağustos 2015) Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea). Journal of Black Sea / Mediterranean Environment 21 2 169–190.
IEEE
[1]E. Ö. Özbek, M. Çardak, ve T. Kebapçioğlu, “Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea)”, Journal of Black Sea / Mediterranean Environment, c. 21, sy 2, ss. 169–190, Ağu. 2015, [çevrimiçi]. Erişim adresi: https://izlik.org/JA99GC24YX
ISNAD
Özbek, Elif Özgür - Çardak, Mine - Kebapçioğlu, Turhan. “Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea)”. Journal of Black Sea / Mediterranean Environment 21/2 (01 Ağustos 2015): 169-190. https://izlik.org/JA99GC24YX.
JAMA
1.Özbek EÖ, Çardak M, Kebapçioğlu T. Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea). Journal of Black Sea / Mediterranean Environment. 2015;21:169–190.
MLA
Özbek, Elif Özgür, vd. “Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea)”. Journal of Black Sea / Mediterranean Environment, c. 21, sy 2, Ağustos 2015, ss. 169-90, https://izlik.org/JA99GC24YX.
Vancouver
1.Elif Özgür Özbek, Mine Çardak, Turhan Kebapçioğlu. Spatio-temporal patterns of abundance, biomass and length-weight relationships of Dasyatis species (Pisces: Dasyatidae) in the Gulf of Antalya, Turkey (Levantine Sea). Journal of Black Sea / Mediterranean Environment [Internet]. 01 Ağustos 2015;21(2):169-90. Erişim adresi: https://izlik.org/JA99GC24YX