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Feeding habits and dietary overlap in spiny dogfish Squalus acanthias (Squalidae) and narrowmouth catshark Schroederichthys bivius (Scyliorhinidae)

Content Provider	Scilit
Author	Laptikhovsky, V. V. Arkhipkin, A. I. Henderson, A. C.
Copyright Year	2001
Description	Spiny dogfish Squalus acanthias and narrowmouth catshark Schroederichthys bivius are the only two shark species commonly inhabiting the Falkland Islands shelf. The present study was undertaken to investigate their feeding habits and possible dietary overlap between the species. The diet of the spiny dogfish was dominated by Falkland herring Sprattus fuegensis and squid Loligo gahi, though it also preyed on a wide range of other fish and invertebrates. Catsharks showed a preference for invertebrates. The diet of both species showed marked variations with season, and ontogenic shifts were also evident. Dietary overlap was minimal in winter (15·4%) and maximal in spring (61·1%), the latter being due to both species preying upon spawning aggregations of S. fuegensis.
Related Links	https://www.cambridge.org/core/services/aop-cambridge-core/content/view/E222CF5E133BB25113AA7E388D00E838/S0025315401004994a.pdf/div-class-title-feeding-habits-and-dietary-overlap-in-spiny-dogfish-span-class-italic-squalus-acanthias-span-squalidae-and-narrowmouth-catshark-span-class-italic-schroederichthys-bivius-span-scyliorhinidae-div.pdf
Ending Page	1018
Page Count	4
Starting Page	1015
ISSN	00253154
e-ISSN	14697769
DOI	10.1017/s0025315401004994
Journal	Journal of the Marine Biological Association of the United Kingdom
Issue Number	6
Volume Number	81
Language	English
Publisher	Cambridge University Press (CUP)
Publisher Date	2001-12-10
Access Restriction	Open
Subject Keyword	Journal of the Marine Biological Association of the United Kingdom Dietary Overlap Spiny Dogfish Squalus Acanthias Schroederichthys Bivius Narrowmouth Catshark Feeding Habits
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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