Naslov
UZGOJ TROPSKOG STRAŽNJOŠKRŽNJAKA ELYSIA CLARKI (PIERCE, CURTIS, MASSEY, BASS, KARL & FINNEY, 2006) (OPISTHOBRANCHIA, MOLLUSCA) S NAGLASKOM NA RANE RAZVOJNE STADIJE U UVJETIMA KLIMATSKIH PROMJENA
(ELYSIA CLARKI (PIERCE, CURTIS, MASSEY, BASS, KARL & FINNEY, 2006) (OPISTHOBRANCHIA, MOLLUSCA) CULTURE IN A CHANGING OCEAN WITH EMPHASIS ON EARLY ONTOGENY)

Autori
Bilan, Meri

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad

Fakultet
Sveučilišni odjel za studije mora

Mjesto
Split

Datum
16.09

Godina
2016

Stranica
42

Mentor
Grubišić, Leon

Neposredni voditelj
Gisela Dionísio

Ključne riječi
Climate change, Elysia clarki, early life stages

Sažetak
This study investigated the interactive effects of warming and CO2‐driven acidification on fertilization, development and juvenile survival a tropical Opisthobranch, Elysia clarki. This marine tropical sea slug is commonly used as biological tool for scientific research particularly to study chemical ecology and photosymbiotic associations. Four experimental treatments (varying from 26 ºC to 30 ºC and pH from 8 to 7.5) were tested in all combinations and compared with the control scenario (26 ºC, pH 8). E. clarki was severely impacted by the effects of warming and acidification. Contrary to global warming, ocean acidification reduced the number of egg masses per individual and development in both species. Also, severe veliger deformities (body, shell and oral apparatus) were observed at ocean warming and acidification treatment (60% deformations). Concomitantly, for this sea slug the future scenario is not promising, since juvenile’s survival was negatively impacted. Our study emphasizes the need for experiments that address ocean warming and acidification on Opisthobranchs concurrently and place single stressor studies in context.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

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