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- Title
Sicklefin devilray and common remora prey jointly on baitfish.
- Authors
Solleliet-Ferreira, S.; Macena, B.C.L.; Laglbauer, B.J.L.; Sobral, A.F.; Afonso, P.; Fontes, J.
- Abstract
Devil rays are considered pelagic filter-feeders but direct observation of their foraging in the wild is very scarce and their feeding ecology is known essentially from indirect methods. On September 2018, a group of 16 sicklefin devil rays were observed preying on bait balls of longspine snipefish (Macroramphosus scolopax), together with their associated common remora (Remora remora), at Princess Alice seamount, Azores (mid-north Atlantic). Image analysis of these events and that of another devil ray feeding event on myctophids from the Pacific Ocean allowed the description of a new behavioural pattern ('feeding pivot'). The significance of these behaviours is discussed in the broader context of mobulids' feeding ecology, and a potential adaptive significance for the silver funnel surrounding the mouth of this species is proposed.
- Subjects
AZORES; IMAGE analysis; BAITFISH; FORAGE
- Publication
Environmental Biology of Fishes, 2020, Vol 103, Issue 8, p993
- ISSN
0378-1909
- Publication type
Article
- DOI
10.1007/s10641-020-00990-9