Original scientific paper

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 ; Department for Aquaculture, University of Dubrovnik, Ćira Carića 4, 20000 Dubrovnik, Croatia
Alexis CONIDES ; Hellenic Centre for Marine Research, Agios Kosmas, Hellinikon, 166 10 Athens, Greece
Iris DUPČIĆ RADIĆ ; Department for Aquaculture, University of Dubrovnik, Ćira Carića 4, 20000 Dubrovnik, Croatia
Branko GLAMUZINA ; Department for Aquaculture, University of Dubrovnik, Ćira Carića 4, 20000 Dubrovnik, Croatia

Abstract

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.

Keywords

Paracentrotus lividus; growth; size class frequency; reproduction; Adriatic Sea

Hrčak ID:

55816

URI

https://hrcak.srce.hr/55816

Publication date:

1.7.2010.

Article data in other languages: croatian

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