Naslov
Biodiversity and distribution of cephalopods caught by bottom trawling in the Northern and Central Adriatic Sea

Autori
Krstulović Šifner, Svjetlana ; Peharda, Melita ; Vrgoč, Nedo ; Isajlović, Igor ; Dadić, Vlado ; Petrić, Mirela

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Cephalopod International Advisory Council - CIAC Symposium / CIAC - Vigo, 2009, 75-76

Skup
Cephalopod International Advisory Council Symposium

Mjesto i datum
Vigo, Španjolska, 03.09.2009. - 11.09.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cephalopods; assemblages; distribution; bottom trawling; Adriatic Sea

Sažetak
A time series (1996-2004) of bottom trawl surveys performed in the scope of the MEDITS project was analysed in order to identify and describe the cephalopod assemblages in the Northern and Central Adriatic Sea. A total of 32 cephalopd species was caught, belonging to 8 families. All species were previously registered in tha Adriatic Sea but 6 of them were found for the first time in the area of investigation. The abundance index of cephalopods was greatest in depths 100 to 200 m and biomass index in 10-50 m depth stratum. Taxonomic diversity and distinctness indices had higher values in shallow waters (down to 100 m), and total taxonomic distinctness index increased with depth. Results indicated depth structuring of cephalopods assemblages in the Northern and Central Adriatic Sea. It was found that, based on abundance data, the most important species for stratum 10-50 m was Eledone moschata, in stratum 50-100 m Alloteuthis media, S. elegans and E. moschata, for depths between 100– 200 m A. media and I. coindetii and for depth stratum 200– 500 m I. coindetii and Eledone cirrhosa. Statistical methods proved the significant difference between cephalopod assemblages in defined depth strata, with 10-50 m and 50-100 m strata being the most similar. In addition, based on the values of biomass indices and their commercial importance 5 cephalopod species were chosen and their spatial distibution and recent trends were described.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Biotehnologija

POVEZANOST RADA