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@article{Barker:2022:10.1111/jfb.15133,
author = {Barker, J and Davies, J and Goralczyk, M and Patel, S and O'Connor, J and Evans, J and Sharp, R and Gollock, M and Wood, FR and Rosindell, J and Bartlett, C and Garner, BJ and Jones, D and Quigley, D and Wray, B},
doi = {10.1111/jfb.15133},
journal = {Journal of Fish Biology},
pages = {640--658},
title = {The distribution, ecology and predicted habitat use of the Critically Endangered angelshark (Squatina squatina) in coastal waters of Wales and the central Irish Sea},
url = {http://dx.doi.org/10.1111/jfb.15133},
volume = {101},
year = {2022}
}

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TY - JOUR
AB - The angelshark (Squatina squatina) has the northernmost range of any angel shark species, but there is limited information on its distribution, habitat use and ecology at higher latitudes. To address this, Angel Shark Project: Wales gathered 2231 S. squatina records and 142 anecdotal resources from fishers, coastal communities and archives. These spanned the coastal waters of Wales and the central Irish Sea and were dated from 1812 to 2020, with 97.62% of records within 11.1 km (6 nm) of the coast. Commercial, recreational and charter boat fishers provided the majority of S. squatina records (97.18%), with significantly more sightings from three decades (1970s, 1980s and 1990s) and in the months of September, June, August and July (in descending order). The coastal area between Bardsey Island and Strumble Head had the most S. squatina records (n = 1279), with notable concentrations also found in Carmarthen Bay, Conwy Bay and the Outer Severn Estuary. Species distribution models (SDM) identified four environmental variables that had significant influence on S. squatina distribution, depth, chlorophyll-a concentration, sea surface temperature (SST) and salinity, and these varied between the quarters (Q) of the year. SDM model outputs predicted a larger congruous area of suitable habitat in Q3 (3176 km2) compared to Q2 (2051 km2), with suitability along the three glacial moraines (Sarn Badrig, Sarn-y-Bwch and Sarn Cynfelyn) strongly presented. Comparison of modelled environmental variables at the location of S. squatina records for each Q identified reductions in depth and salinity, and increases in chlorophyll-a and SST when comparing Q2 or Q3 with Q1 or Q4. This shift may suggest S. squatina are making seasonal movements to shallow coastal waters in Q2 and Q3. This is supported by 23 anecdotal resources and may be driven by reproductive behaviour, as there were 85 records of S. squatina individuals ≤60 cm in the dataset, inferred as recently b
AU - Barker,J
AU - Davies,J
AU - Goralczyk,M
AU - Patel,S
AU - O'Connor,J
AU - Evans,J
AU - Sharp,R
AU - Gollock,M
AU - Wood,FR
AU - Rosindell,J
AU - Bartlett,C
AU - Garner,BJ
AU - Jones,D
AU - Quigley,D
AU - Wray,B
DO - 10.1111/jfb.15133
EP - 658
PY - 2022///
SN - 0022-1112
SP - 640
TI - The distribution, ecology and predicted habitat use of the Critically Endangered angelshark (Squatina squatina) in coastal waters of Wales and the central Irish Sea
T2 - Journal of Fish Biology
UR - http://dx.doi.org/10.1111/jfb.15133
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000821053600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://onlinelibrary.wiley.com/doi/10.1111/jfb.15133
UR - http://hdl.handle.net/10044/1/105662
VL - 101
ER -

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