Naslov
Environmental and aquaculture interactions – two decades of experience in Croatia

Autori
Žužul, Iva ; Šegvić-Bubić, Tanja ; Talijančić, Igor ; Grubišić, Leon ; Žuvić, Luka ; Lepen Pleić, Ivana ; Bušelić, Ivana ; Hrabar, Jerko

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

Izvornik
14th International Aquaculture Conference, Book of Abstracts / Filić, Želimir - : Hrvatska gospodarska komora (HGK), 2023, 114-114

Skup
14th International Aquaculture Conference

Mjesto i datum
Vukovar, Hrvatska, 29.03.2023. - 31.03.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
mariculture, farm escapes, management

Sažetak
Today, modern scientific methods are increasingly being used to support aquaculture and marine environmental management to better understand the complex impacts of aquaculture on native populations. As selective schemes progress and the number of selection rounds increases, genome and phenotypic target traits tend to diverge between wild and farmed populations, while genetic variation in the latter decreases. In the last decade, the scientific community in Croatia has started to monitor the interactions between the most common species in mariculture, seabream and seabass, and the marine environment using genetic and genomic techniques (mtDNA, microsatellites, SNPs) and phenotypic fish traits (body, otolith and scale shape, condition index, coloration). This is particularly important for wild fish populations, as many farmers base their production on fingerling originating from French, Italian, and Greek hatcheries, and fish can escape during farming due to storms, fish manipulation, or net holes. In 2011 and 2022, hybrid and farmed gilthead seabream and sea bass were detected at moderate levels (13-15%) in farmed affected areas, indicating successful introgression of farmed fish into wild populations. Therefore, contingency plans should be designed and established to maximize the recapture of escaped fish following an escape event. The AquaPop-Croatian Science Foundation project created the first database of morphometric and multilocus data from farmed and wild sea bream, which can serve as a basis for developing strategies similar to those in Norway. In addition, long-term coexistence requires novel methods to prevent escapes, supported by genomic tools to control sex or maturation along with production of locally domesticated fish.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA