Determination of the recruitment to stock and reproduction period for flounder (Platichthys flesus luscus Pallas, 1811) along the Trabzon-Rize Coast, Eastern Black Sea


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Ciloglu E.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, vol.29, no.1, pp.43-48, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 1
  • Publication Date: 2005
  • Title of Journal : TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Page Numbers: pp.43-48

Abstract

The length and weight distribution of flounder (Platichthys flesus luscus Pallas, 1811) were 14.2-34.1 cm and 28.879-611.0 g, respectively. The samples were distributed between the 0 and VII age groups. Von Bertalanffy growth parameters for flounder were = 41.241 [1-e(-0161(t+3.240))]for females, L-t= 33.567[1-e(-0181(t+3,525))] for males and L-t = 40.577[1-e(-0.142(t+3.105))] for the sexes combined. Reproduction took place from December to March but peaked in December. Two recruitment periods were determined for flounder: the first was January to July, and the second August to November. The proportions of recruitment in the first and second periods were 68.13% and 31.87%, respectively.

The length and weight distribution of flounder (Platichthys flesus luscus Pallas, 1811) were 14.2-34.1 cm and 28.879-611.0 g, respectively. The samples were distributed between the 0 and VII age groups. Von Bertalanffy growth parameters for flounder were = 41.241 [1-e(-0161(t+3.240))]for females, L-t= 33.567[1-e(-0181(t+3,525))] for males and L-t = 40.577[1-e(-0.142(t+3.105))] for the sexes combined. Reproduction took place from December to March but peaked in December. Two recruitment periods were determined for flounder: the first was January to July, and the second August to November. The proportions of recruitment in the first and second periods were 68.13% and 31.87%, respectively.