Naslov
Some Biological Parameters of the Thin-Lippes Mullet Liza Ramda (Pisces, Mugilidae) in the Neretva River Delta (Eastern Adriatic, Croatian Coast)
(Some Biological Parameters of the Thin-Lippes Mullet Liza Ramada (Pisces, Mugilidae) in the Neretva River Delta (Eastern Adriatic, Croatian Coast))

Autori
Glamuzina, Branko ; Dulčić, Jakov ; Conides, Alexis ; Bartulović, Vlasta ; Matić-Skoko, Sanja ; Papaconstantinou, Costas

Izvornik
Life & Environment = Vie et Milieu (1980) (0240-8759) 57 (2007), 3; 131-136

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Mugilidae; Liza Ramada; age; growth; mortality; reproduction

Sažetak
Aspects concerning age, growth, reproduction and recruitment were analysed in the thin-lipped mullet, Liza ramada collected in Neretva river delta estuary (East Adriatic, Croatian coastline). The study was based on the collection of a total of 362 individuals on a monthly basis. The Bertalanffy growth curve parameters were estimated: TL∞ =59.96 cm, K=0.269 year-1, to=-0.455. Natural mortality was estimated at 0.32 year-1. Total mortality (Z) was estimated at 0.70 year-1 (range 0.55-0.85 year-1). Fishing mortality was estimated at 0.38 year-1 and the exploitation ratio at E=0.54. The gonad-somatic index profile shows a single peak during the year in October. The sex ratio profile shows skewed sex ratios throughout the year except the period prior to reproduction peak.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

Napomena
Vie et Milieu (1980) ; str. 7-13

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