Synaphobranchid eel swarms on abyssal seamounts: Largest aggregation of fishes ever observed at abyssal depths

Leitner, Astrid B.; Durden, Jennifer M.; Smith, Craig R.; Klingberg, Eric D.; Drazen, Jeffrey C.

doi:10.1016/j.dsr.2020.103423

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Synaphobranchid eel swarms on abyssal seamounts: Largest aggregation of fishes ever observed at abyssal depths

2021
By Leitner, Astrid B. ; Durden, Jennifer M. ; Smith, Craig R. ; ...
Source: Deep–Sea Research I 167 (2021) 103423

[PDF-2.83 MB]

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Journal Title:

Deep Sea Research Part I: Oceanographic Research Papers
Personal Author:

Leitner, Astrid B. ; Durden, Jennifer M. ; Smith, Craig R. ; Klingberg, Eric D. ; Drazen, Jeffrey C.

Leitner, Astrid B. ; Durden, Jennifer M. ; Smith, Craig R. ; Klingberg, Eric D. ; Drazen, Jeffrey C. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; Ocean Exploration Program

OAR (Oceanic and Atmospheric Research) ; Ocean Exploration Program Less -
Description:

The abyssal seafloor makes up three quarters of the ocean floor, and it is generally characterized as a food-limited habitat with low numbers of megafauna, particularly fishes. Baited camera observations from three abyssal seamount summits in the equatorial Pacific challenge this idea. On each of two deployments at the southernmost seamount, over 100 synaphobranchid eels (Ilyophis arx) were recorded feeding on standard bait (1 kg mackerel). This is the highest number of fishes per kg of bait ever recorded below 1000 m, including observations from large organic falls such as cetacean and shark carcasses. It is also the highest number that has ever been recorded at carrion of any kind or size at abyssal depths. We suggest an abyssal ‘seamount effect’ may be responsible, highlighting the potential importance of seamounts in structuring abyssal communities.
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Abyssal Zone Ocean Bottom
Source:

Deep–Sea Research I 167 (2021) 103423
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https://doi.org/10.1016/j.dsr.2020.103423
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Journal Article
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urn:sha256:2592f725999df41d83baf296ec4232146f600401d5c606c6a11eead61363919a
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https://repository.library.noaa.gov/view/noaa/28518/noaa_28518_DS1.pdf
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Synaphobranchid eel swarms on abyssal seamounts: Largest aggregation of fishes ever observed at abyssal depths

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