Gaga Gölü (Ordu, Türkiye)’nden yakalanan tatlısu ıstakozu (Astacus leptodactylus Eschscholtz, 1823)’nda ağırlık-uzunluk ilişkisi ve et verimi
Bu çalışmada Gaga Gölü’nden yakalanan tatlısu ıstakozu (Astacus leptodactylus)’nun ağırlık-uzunluk ilişkisi ve et verimi incelendi. Aynı karapaks uzunluk grubundaki erkek ve dişi tatlısu ıstakozlarının (kerevit) karapaks genişliği, abdomen uzunluğu, abdomen genişliği, toplam uzunluğu, kıskaç uzunluğu, kıskaç genişliği ve kıskaç ayak uzunluğu karşılaştırıldığında erkeklerin dişilerden istatistiksel olarak önemli derecede uzun olduğu belirlendi (P
The relationships between length-weight, and meat content of freshwater crayfish (Astacus leptodactylus Eschscholtz, 1823) caught from Gaga Lake (Ordu-Turkey).
In this study, length-weight relation and meat content were investigated in freshwater crayfish (Astacus leptodactylus Eschscholtz, 1823) caught from Gaga Lake. In the comparison of carapace width, abdomen length, abdomen width, total length, chelae length, cheliped width and cheliped length between males and females; it was found that significantly bigger those of the females (P<0.001 for each case). The results showed that there was a linear relationship (rmales= 0.87 and rfemales= 0.90) between carapace length and body weight of males and females. In addition, regression coefficients showed that negative allometric body weight increase occurs in both sexes (slope males= 2.55 and slopefemales= 2.49). Furthermore, regression analyzes showed that while there was a linear relationship (rmales= 0.75) between abdomen meat content and carapace length in males, there was not a linear relation (rfemales= 0.48) in that of females. The results also showed that, there was a negative allometric growth in abdomen meat content of male and female (slopemales= 1.83 and slopefemales= 1.23), but there was a positive allometric growth in the chelea meat content of the females and males (slopemales= 4.79 and slopefemales= 3.73). On the other hand, as regarding total meat content there was a positive allometric growth in the total meat content of males (slopemales= 3.18), but there was a negative allometric growth in the total meat content of females (slope females= 1.92), and it was found that the abdomen, chelae and total meat content of males was significantly higher than those of the females (P<0.001 for each case).
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- Aiken, D.E., Waddy, S.L. 1992. The growth process in crayfish. Reviews in Aquatic Sciences, 6(3-4):335-381.
- Balık, S., Ustaoğlu, M.R., Sarı, H.M., Berber, S. 2005. Determination of traits some growth and morphometric of crayfish (Astacus leptodactylus Eschscholtz, 1823) at Demirköprü Dam Lake (Manisa) (in Turkish with English abstract). Ege Journal of Fisheries and Aquatic Sciences, 22(1- 2):83-89.
- Barım Öz, Ö. 2007 Morphometric Analysis and Meat Yield of Freshwater Crayfish, Astacus leptodactylus Eschscholtz, 1823, in Çemisgezek Region of Keban Dam Lake (in Turkish with English abstract). Fırat Üniv. Fen Bilimleri Ens., Fen ve Mühendislik Bilimleri Dergisi, 19(3):301-307.
- Bolat, Y. 2001. An estimation in the population density of freshwater crayfish (Astacus leptodactylus salinus Normdan, 1842) living in Hoyran Area of Eğirdir Lake, Isparta, Turkey (in Turkish with English abstract). Ph.D. thesis, Süleyman Demirel Üniversitesi, 116 p.
- Bolat, Y., Aksoylar, M.Y. 2003. Determination the relationship between of lenght-weight with carapace length–total length and changing the period of the shell of freshwater crayfish, Astacus leptodactylus (Esch 1823) from Eğirdir Lakes (in Turkish with English abstract). Süleyman Demirel Üniversitesi, Eğirdir Su Ürünleri Fakültesi Dergisi, 2(10):26-31.
- Büyükçapar, H.M., Alp, A., Kaya, M., Çiçek, Y. 2006. The length-weight relationships, and meat yield of crayfish (Astacus leptodactylus Eschscholtz, 1823) in the Mamasın Reservoir (Aksaray, Turkey) (in Turkish with English abstract). Ege Journal of Fisheries and Aquatic Sciences, 23(1-2):21–25.
- Çaklı, Ş. 2008. Fish Processing Technology (in Turkish with English abstract). Ege Üniversitesi Yayınları, Su Ürünleri Fakültesi Yayın No: 76. Bornova-İzmir, ISBN: 978-975-483-762-9, 95s.
- Çevik, C., Tekelioğlu, N. 1997. The determine of same bio-ecological, morphometric spesification and disease status of crayfish (Astacus leptodactylus) living in Seyhan Dam Lake (in Turkish with English abstract). IX. Ulusal Su Ürünleri Sempozyumu 17-19 Eylül, Eğirdir- Isparta.
- Erdemli, A.Ü. 1982. A research on the freshwater crayfish (Astacus leptodactylus, Esch., 1823) populations of Beyşehir, Eğridir, Akşehir, Eber Lakes and Apa Dam Lake (in Turkish with English abstract). Doğa Bilim Dergisi: Veterinerlik ve Hayvancılık, 7(2):313-318.
- Erdemli, A.Ü. 1987. A comparative investigation between the crayfish caught from Hotamıs Lake and Mamasın Dam Lake. Doğa TU. Zooloji D.C., 1:15-23. 11s.
- Erkbay, C. 2004. Biological characteristic, stock status in Sera Lake (Trabzon) and aquaculture possibility in the Black Sea Region (in Turkish with English abstract). Ph.D. thesis, KTÜ, Fen Bilimleri Enst. Balıkçılık Teknolojisi Mühendisliği A.B.D. 71 s.
- Guan, R.Z., Wiles, P.R. 1999. Growth and reproduction of the introduced crayfish Pacifastacus leniusculus in a British lowland river. Fisheries Research, 42:245-259.
- Güner, U., Balık, S. 2002. Relationship between lenght-weight egg productivity of crayfishes (Astacus leptodactylus Eschscholtz, 1823) in lake Işıklı (Çivril-Denizli) (in Turkish with English abstract). Ege Journal of Fisheries and Aquatic Sciences, 19(1-2):109-113.
- Harlıoğlu, M.M. 1999. The relationship between lenght-weight, and meat yield of freshwater crayfish, Astacus leptodactylus Eschscholtz, in the Ağın Region of Keban Dam Lake (in Turkish with English abstract). Turkish Journal of Zoology, 23(3):949-957.
- Harlıoğlu, M.M., Holdich, D.M. 2001. Meat yields in the introduced freshwater crayfish, Pacifastacus leniusculus and Astacus leptodactylus (in Turkish with English abstract). Aquaculture Research, 32:411-417.
- Harlıoğlu, M.M., Harlıoğlu, A.G. 2005. The comparison of morphometric analysis and meat yield contents of freshwater crayfish, Astacus leptodactylus (Esch., 1823) caught from İznik, Eğirdir Lakes and Hirfanlı dam lake (in Turkish with English abstract). Fırat Üniversitesi Mühendislik Fakültesi Dergisi, 17(2):412-423.
- Holdich, D.M. 1999. The negative effects of established crayfish introductions. In: Crayfish in Europe as Alien Species. How to Make the Best of a Bad Situation? Ghrardi, F., Holdich, D.M. (eds). Balkema, Rotterdam/Brookfield, pp: 31-47.
- Özdemir, M. 2006. Geography of Bolaman River (in Turkish with English abstract). Atatürk Kültür, Dil ve Tarih Yüksek Kurumu, Türk Tarih Kurumu Yayınları, , Ankara, XXVII. Dizi, sayı 6, 556.
- Lowery, R.S. 1988. In: Freshwater crayfish: biology, management and exploitation, Holdich D.M., Lowery R.S. (eds), Chapman & Hall, London, pp: 83-113.
- Rhodes, C.P., Holdich, D.M. 1984. Length-weight relationship, muscle production and proximate composition of the freshwater crayfish Austropotamobius pallipes (Lereboullet). Aquaculture, 37:107-123.
- Romaire, R.P., Forester, J.S., Avault, J.V. 1977. Length-weight relationships of two commercially important crayfishes of the genus Procambarus. Freshwater Crayfish, 3:463-470.
- Skurdal, J., Taugbøl, T. 2002. Astacus, biology of freshwater crayfish, In: D.M. holdich (ed), Chapter: 12, Blackwell Science Ltd., 674 p.
- Taş, B. 2011. Investigation of Water Quality of Lake Gaga (Ordu, Turkey) (in Turkish with English abstract). The Black Sea Journal of Sciences, 1(3):43-61.
- ISSN: 1300-1590
- Yayın Aralığı: Yılda 4 Sayı
- Başlangıç: 1984
- Yayıncı: Aynur Lök
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