Acta Adriatica, Vol. 52 No. 2, 2011.
Izvorni znanstveni članak
Investigation of Length-Weight Relationships for 10 commercial fish species as a possible trophic state index of Coastal Lagoons
Dimitrios K. MOUTOPOULOS
; Tehnološko-obrazovni institut u Mesolonghi, Odjel za akvakulturu i uprava ribarstva, Grčka
Katerina KOUKOU
; Tehnološko-obrazovni institut u Mesolonghi, Odjel za akvakulturu i uprava ribarstva, Grčka
Vassiliki VAVAROUTA
; Tehnološko-obrazovni institut u Mesolonghi, Odjel za akvakulturu i uprava ribarstva, Grčka
Alexios RAMFOS
; Tehnološko-obrazovni institut u Mesolonghi, Odjel za akvakulturu i uprava ribarstva, Grčka
George KATSELIS
; Tehnološko-obrazovni institut u Mesolonghi, Odjel za akvakulturu i uprava ribarstva, Grčka
Sažetak
Length-weight (L-W) relationships were estimated and compared for 10 commercially important fish species caught during September-December 2004 from two lagoons in the Ionian Sea based on similar length ranges. The median value of the exponent b of the L-W relationships was 3.091 and ranged from 2.444 to 3.536. The larger specimens of the mid-trophic level species (i.e. Sparus aurata, Diplodus annularis and D. sargus) were heavier at the same length in the less eutrophic lagoon. In contrast, most of the low-trophic level species (i.e. Mugilidae) did not show significant (P>0.05) differences of the L-W parameters between the studied lagoons. The estimated parameters of the L-W relationships for each species between the two lagoons in relation to their trophic state are also discussed. Our findings indicated that the L-W relationships of the mid-trophic level species may be possibly used as an index of the trophic state in lagoons.
Ključne riječi
Length-weight relationship; trophic state index; lagoon; Ionian Sea
Hrčak ID:
89730
URI
Datum izdavanja:
30.11.2011.
Posjeta: 1.583 *