Kevrekidis, T., N. Gouvis, and A. Koukouras (1997) Population dynamics, reproduction and growth of Upogebia pusilla (Decapoda, Thalassinidea) in the Evros Delta (north Aegean Sea). Crustaceana70(7): 799–812. PDF is 708kB
Population dynamics, reproduction and growth of _Upogebia pusilla_ (Decapoda, Thalassinidea) in the Evros Delta (north Aegean Sea)
Secondary Title
Crustaceana
Secondary Authors
Tertiary Title
Tertiary Authors
Volume
70
Issue
7
Pages
799–812
Place published
Published
Date
URL
Abstract
Monthly samples of Upogebia pusilla were collected from February 1983 to February 1984 in an area of the Evros Delta located close to the sea, where salinity and temperature of the water ranged from 4 to 25% and 4.3° to 24.5°C, respectively. Population density and wet weight biomass varied greatly, being higher in summer. Young shrimps appeared in August and had a maximum life span of approximately three years. Ovigerous females were found from April to August. The frequency of females among the collected individuals was 0.393. The smallest ovigerous female had a total length (TL) of 39 mm, while the maximum TL for females was 82 mm and for males 106 mm. Growth in age classes I and II was greater in the period from July to August. Mean growth of carapace length (CL) was described by the Von Bertalanffy function. A positive correlation existed between total length and CL or wet weight (W).