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Article 2

Some biological parameters of the thin-lipped mullet Liza ramada (Pisces, Mugilidae) in the Neretva r River delta (Eastern Adriatic, Croatian coast)

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B. GLAMUZINA1*, J. DULCIC2, A. CONIDES 3, V. BARTULOVIC1, S. MATIC-SKOKO2, C. PAPACONSTANTINOU
1Department for Aquaculture, University of Dubrovnik, Cira Carica 4, 20000 Dubrovnik, Croatia
2Institute of Oceanography and Fisheries, POB 500, 21000 Split, Croatia
3Hellenic Centre for Marine Research, Agios Kosmas, Hellinikon, 16610 Athens, Greece
* Corresponding author: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

ABSTRACT. – 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 von Bertalanffy growth curve parameters were estimated: TL = 59.96 cm, K = 0.269 year-1, t0 = -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 gonado-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. This L. ramada population is suggested to be in good status.

You are here: Volume 57 (2007) Issue 3 Article 2
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