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Variability in behaviour of four fish species attracted to baited underwater cameras in the North Sea

Lookup NU author(s): Dr Benjamin Wigham


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Baited underwater camera (BUC) systems to estimate demersal fish abundance are becoming increasingly considered as an alternative to traditional survey methods, particularly in environments that contain sensitive habitats or protected species. Based on 27 replicate deployments of BUCs at 100 m depth in the northern North Sea, in rank order of abundance, hagfish (Myxine glutinosa), flatfish mainly dabs (Limanda limanda), whiting (Merlangius merlangus) and haddock (Melanogramus aeglefinus) were observed consistently at baits. Higher maximum numbers (N max) occurred during daytime in all species with the most significant effect in flatfish, 18 in daytime and 5 at night-time. Bottom current had no significant effect on numbers of whiting, flatfish or haddock. The N max of hagfish was strongly related to current speed in a non-linear way with an increase in numbers up to 10 cm s−1 and then decrease in N max at higher water speeds. Understanding and accounting for such species-specific influences is important in the design of long term monitoring surveys using baited cameras.

Publication metadata

Author(s): Martinez I, Jones EG, Davie SL, Neat FC, Wigham BD, Priede IG

Publication type: Article

Publication status: Published

Journal: Hydrobiologia

Year: 2011

Volume: 670

Issue: 1

Pages: 23-34

Print publication date: 30/03/2011

ISSN (print): 0018-8158

ISSN (electronic): 1573-5117

Publisher: Springer


DOI: 10.1007/s10750-011-0672-x

Notes: Baited camera – Current – Demersal fish – North Sea – Fisheries


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Funder referenceFunder name
020501-2Early Stage Research