Acta Adriatica, Vol. 51 No. 1, 2010.
Izvorni znanstveni članak
Growth, size class frequency and reproduction of purple sea urchin, Paracentrotus lividus (Lamarck, 1816) in Bistrina Bay (Adriatic Sea, Croatia)
Sanja TOMŠIĆ
orcid.org/0000-0001-9881-5475
; Odjel za akvakulturu, Sveučilište u Dubrovniku, Ćira Carića 4, 20000 Dubrovnik,Hrvatska
Alexis CONIDES
; Helenski Centar za morska istraživanja, Agios Kosmas, Hellinikon, 166 10 Atena, Grčka
Iris DUPČIĆ RADIĆ
; Odjel za akvakulturu, Sveučilište u Dubrovniku, Ćira Carića 4, 20000 Dubrovnik,Hrvatska
Branko GLAMUZINA
; Odjel za akvakulturu, Sveučilište u Dubrovniku, Ćira Carića 4, 20000 Dubrovnik,Hrvatska
Sažetak
This paper presents research data on the growth, size class frequency and reproduction of the sea urchin Paracentrotus lividus in Bistrina Bay, eastern Adriatic Sea coast, Croatia. The population was sampled on a monthly basis and from depths ranging between 0 and 3 m from the surface. Size class frequency of the test diameter showed that the population size ranges between 10 and 65 mm in the area with the main population in the class 30-45 mm. The von Bertalanffy growth parameters were found: TD∞=7.07 cm, K=0.182, to=-1.403 years. The estimated longevity was found to be 15.06 years. The gonad somatic index annual distribution showed that the peak of reproduction occurs in April. The average GSI values range between 1.33±0.96% in September and 4.83±2.02% in April.
Ključne riječi
Paracentrotus lividus; growth; size class frequency; reproduction; Adriatic Sea
Hrčak ID:
55816
URI
Datum izdavanja:
1.7.2010.
Posjeta: 2.926 *