Growth and length-weight relationships of the horse mackerel, Trachurus mediterraneus ponticus (Aleev, 1956), off the Bulgarian Black Sea coast

M. Yankova,V. Raykov,D. Gerdzhikov,Petya Bogomilova Frateva

Published 2010 in Turkish Journal of Zoology

ABSTRACT

Between April 2007 and October 2008 we collected 1995 horse mackerel specimens from the territorial waters of the Bulgarian Black Sea. Age, length, and weight of these specimens were determined to estimate length-weight relationships and age composition. The present study utilized otolith characterization to determine age. The sex ratio was 1:1.36686 (M:F). The prevalent age classes were 2+, 3+, and 4+. The exponent b of equation resulted in the value 3.3046, which indicates that the weight growth is positive allometric. Growth parameters of the von Bertalanffy equation were separately evaluated for females and males as follows: L\infinity = 19.66, K = 0.3075 y-1, to = -0.8359, and W\infinity = 69.676, and L\infinity = 18.78, K = 0.3373 y-1, to = -0.8247, and W\infinity = 62.037, respectively. The maximum age was 6+ years for females and 5+ for males.

PUBLICATION RECORD

  • Publication year

    2010

  • Venue

    Turkish Journal of Zoology

  • Publication date

    2010-01-01

  • Fields of study

    Biology, Environmental Science

  • Identifiers
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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