DNA barcoding of the northern Northeast Atlantic skates (Chondrichthyes, Rajiformes), with remarks on the widely distributed starry ray

Lynghammar, A, Christiansen, JS, Griffiths, A, Fevolden, SE, Hop, H and Bakken, T 2014, 'DNA barcoding of the northern Northeast Atlantic skates (Chondrichthyes, Rajiformes), with remarks on the widely distributed starry ray' , Zoologica Scripta, 43 (5) , pp. 485-495.

Full text not available from this repository.

Abstract

The skate fauna in the northern Northeast (NE) Atlantic is poorly investigated, and misidentifications are common. Here, 'DNA barcoding' was used to analyse 105 specimens of 15 species previously reported from the area to investigate the occurrence of species. Of these 15 species, three were new to the region and confirmed with voucher specimens. Three previously reported taxa were not obtained from the study area, providing a total number of 12 skate species for the northern NE Atlantic. Only one specimen of the critically endangered Dipturus batis complex was found. It occurs frequently in the literature and commercial fisheries catch records, and we argue that the vast majority of these are misidentifications. Due to striking differences in Amblyraja radiata life history parameters across the North Atlantic, cryptic species diversity has previously been suspected. A total of 80 A. radiata cytochrome c oxidase subunit I sequences from across the North Atlantic were sampled, and the highest fixation index (FST) was found when maximising geographical distance (FST = 0.133). A lower index was found when grouped according to life history (FST = 0.067). These results are not strongly supportive for the occurrence of cryptic species.

Item Type: Article
Schools: Schools > School of Environment and Life Sciences
Journal or Publication Title: Zoologica Scripta
Publisher: Blackwell Publishing Ltd
ISSN: 0300-3256
Depositing User: WM Taylor
Date Deposited: 21 Oct 2016 09:58
Last Modified: 21 Oct 2016 09:58
URI: http://usir.salford.ac.uk/id/eprint/40430

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)