Naslov
MORPHOLOGICAL CHARACTERIZATION OF NORWAY LOBSTER Nephrops norvegicus (LINNAEUS, 1758) POPULATIONS IN THE ADRIATIC SEA

Autori
Mašanović, Marina ; Talijančić, Igor ; Šegvić Bubić, Tanja ; Žuvić, Luka ; Žužul Vrgoć, Iva

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

Izvornik
7th FACULTY OF SCIENCE PhD STUDENT SYMPOSIUM, BOOK OF ABSTRACTS / Pavlek, Katarina - : Prirodoslovno-matematički fakultet Sveučilišta u Zagrebu, 2023, 93-93

Skup
7th FACULTY OF SCIENCE PhD STUDENT SYMPOSIUM

Mjesto i datum
Zagreb, Hrvatska, 21.04.2023. - 22.04.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Morphometry, allometry, Nephrops norvegicus, Mediterranean Sea

Sažetak
Norway lobster, Nephrops norvegicus, is one of the most valuable commercial crustacean species in the Mediterranean trawl and creel fishery, with most stocks showing a declining trend and overfished status in the last decade [1]. Although knowledge of important parameters for stock assessment is well established [2], research on morphology is still sparse, despite its influence on foraging, behaviour, and other life history traits. The present study focuses on the morphological characteristics of Norway lobster in the Adriatic Sea with the aim of determining the size at morphometric maturity, the shape of the cephalothorax and the median tooth of populations inhabiting channels and open sea areas. The average size at the onset of morphometric maturity was 3.9 cm in individuals from the open sea, while it was 4.3 cm in lobsters from channel areas. On average, individuals from the open sea had a more slender and elongated shape of the cephalothorax than those from channels, while the median tooth crown of individuals from the open sea displayed an arrow-shaped form that differed from the broader crown of lobsters from channel areas. Based on morphological characteristics, the results suggest that selection on phenotypic traits may be related to variations in feeding niches and to an adaptive response to gear selectivity in the channels and the open sea. Therefore, these findings should be taken into account in the future management of the Nephrops fishery in the Adriatic Sea.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA