Naslov
MASS MORTALITY OF SESILE MARINE INVERTEBRATES IN THE ADRIATIC SEA: A SIGN OF GLOBAL WARMING

Autori
Kružić, Petar ; Kipson, Silvija

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

Izvornik
Zbornik sažetaka priopćenja 10. Hrvatskog biološkog kongresa / Besendorfer V., Kopjar, N., Vidaković-Cifrek, Ž., Tkalec, M., Bauer, M., Lukša, Ž. - Zagreb, 2009, 224-225

Skup
10. Hrvatski biološki kongres

Mjesto i datum
Osijek, Hrvatska, 14.09.2009. - 20.09.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Mass mortality; global warming; Adriatic Sea

Sažetak
Mass mortality of marine invertebrates is becoming more common all over the world, both in tropical and temperate seas. A mass mortality event has been observed during the summers of 1999, 2001 and 2004 along the coasts of National Park Mljet, national Park Kornati and Dugi Otok Island. This event has severely affected a wide array of sessile filter-feeder invertebrates from hard-substratum communities, such as sponges (keratose sponges from genus Spongia), cnidarians (particularly the anthozoans Corallium rubrum, Paramuricea clavata, genus Eunicella and stony coral Cladocora caespitosa), ascidians (Halocynthia papillosa) and bryozoans (Myriapora truncata, Pentapora fascialis). Numerous cases of bleaching of the scleractinian coral Cladocora caespitosa, resulting in the total or partial death of colonies, was observed, especially in National Park Mljet, where this species is quite abundant. Exceptionally high and constant temperatures of the whole water column (up to 24 °C, for over one month, down to 35 m depth) could have determined an environmental context favourable to the mass mortality event. In such conditions, the impacted sessile invertebrates have probably reached their higher thermo tolerance, the exposure time having lethal consequences either directly, leading to some physiological depletion or indirectly by triggering the virulence of pathogens. The aim of the present report is to provide results of the mortality events, presenting preliminary quantitative data from selected sites of the Adriatic Sea and discussing possible causes.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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