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Age, growth and length-weight relationship of Coelorinchus caelorhincus (Risso, 1810) in the Adriatic Sea
Isajlovic, I.; Vrgoc, N.; Zorica, B.; Peharda, M.; Krstulovic-Sifner, S.; Piccinetti, C. (2009). Age, growth and length-weight relationship of Coelorinchus caelorhincus (Risso, 1810) in the Adriatic Sea. Acta Adriat. 50(1): 23-30
In: Acta Adriatica. Institute of Oceanography and Fisheries: Split. ISSN 0001-5113; e-ISSN 1846-0453, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoord
    Marien/Kust
Author keywords
    age; growth; length-weight relationship; C. caelorhincus; Adriatic Sea

Auteurs  Top 
  • Isajlovic, I.
  • Vrgoc, N.
  • Zorica, B.
  • Peharda, M., meer
  • Krstulovic-Sifner, S.
  • Piccinetti, C.

Abstract
    Samples of Coelorinchus caelorhincus were collected by bottom trawl during MEDITS ("Mediterranean International Trawl Survey') in June 2003 in the northern and central Adriatic Sea. A total of 175 specimens of C. caelorhincus were used for analysis, of which 90 were males, 84 females and 1 indeterminate. Pre-anal length (PAL) in males ranged between 39 and 77 mm ((x) over bar =50.91 +/- 7.63 mm) and in females between 29 and 115 mm ((x) over bar =55.86 +/- 16.3 mm). The length-weight relationship for the whole sample was W=0.0004PAL(2.65) (r(2)=0.922) indicating negative allometric growth. The age structure of C. caelorhincus was determined from sagittal otolith readings. Maximum otolith length (LO) increased proportionally to fish length (LO=2.585+0.09PAL, r(2)=0.946). Age ranged from 2 to 8 years, with the majority of specimens being 3 (30%) and 4 (31%) years old. The von Bertalanffy growth parameters were: L(infinity)=128 mm, K=0.105 year(-1) and t(0) = -1.277 year.

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