Naslov
THE CROATIAN SEA CUCUMBER FISHERY: COLLECTING ONLY HOLOTHURIA TUBULOSA?

Autori
Sertić, Maya ; Baričević, Ana ; Kružić, Petar ; Hamer, Bojan ;

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

Izvornik
Abstract book / 52nd European Marine Biology Symposium, 25 - 29 September 2017, Piran, Slovenia / Andreja Ramšak, Janja Francé, Martina Orlando-Bonaca, Valentina Turk, Vesna Flander-Putrle, Patricija Mozetič, Lovrenc Lipej, Tinkara Tinta, Domen Trkov, Timotej Turk Dermastia & Alenka Malej - Piran : National Institute of Biology, Marine Biology Station (NIB), 2017, 104-104

ISBN
978-961-93486-5-9

Skup
52nd European Marine Biology Symposium - EMBS 52

Mjesto i datum
Piran, Slovenija, 25.09.2017. - 29.09.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
SEA CUCUMBER FISHERY, Holothuria

Sažetak
Having overexploited the western Pacific Ocean, the sea cucumber fishery has expanded to new regions of the world to supply the Asian market with this traditional delicacy. Sea cucumbers were removed from the Croatian marine protected species list in 2013, and 2017 marked the beginning of a commercial sea cucumber fishery in the Eastern Adriatic Sea. However, holothuroid species are difficult to distinguish, and the status of several taxa in the Mediterranean Sea has been a source of dispute for over a century. This is the first study to genetically analyze sea cucumbers in the Adriatic Sea. We used genetic barcoding of the mitochondrial gene cytochrome c oxidase subunit 1 (COI) to verify the existence and estimate the relative abundance of Holothuria mammata Grube, 1840 in the eastern Adriatic Sea. Holothuria mammata is a species that has rarely been reported in this region and strongly resembles the common species Holothuria tubulosa Gmelin, 1791. In addition to specimens collected from the northern and central Adriatic, we barcoded a specimen previously identified as H. sp. cf. mammata based on its morphological characteristics (Zavodnik, 2003). While genetic analyses showed that Zavodnik’s specimen is actually H. tubulosa, 30% of the collected specimens were genetically identified as H. mammata. These results call into question the historically accepted sea cucumber assemblage in the Adriatic Sea, which regarded H. mammata as a rare species and generally disregarded its presence in large census studies. Such species distribution data are extremely important in developing and monitoring a sustainable fishery.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA