Consumption of large bathyal food fall, a six month study in the NE Atlantic
We deployed 2 porpoise (Phocoena phocoena) carcasses at bathyal depth (2555 to 2710 m) in the Porcupine Seabight, NE Atlantic for periods of 1 wk and 6 mo respectively. Consumption rates of 0.085 and 0.078 kg h–1 were similar to those observed at abyssal depths in the Atlantic, and 1 order of magnit...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/70/ http://www.int-res.com/articles/meps2006/310/m310p065.pdf https://doi.org/10.3354/meps310065 |
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ftnerc:oai:nora.nerc.ac.uk:70 2024-06-09T07:49:03+00:00 Consumption of large bathyal food fall, a six month study in the NE Atlantic Kemp, Kirsty M. Jamieson, Alan J. Bagley, Philip M. McGrath, Helen Bailey, David M. Collins, Martin A. Priede, Imants G. 2006 http://nora.nerc.ac.uk/id/eprint/70/ http://www.int-res.com/articles/meps2006/310/m310p065.pdf https://doi.org/10.3354/meps310065 unknown Inter-Research Kemp, Kirsty M.; Jamieson, Alan J.; Bagley, Philip M.; McGrath, Helen; Bailey, David M.; Collins, Martin A. orcid:0000-0001-7132-8650 Priede, Imants G. 2006 Consumption of large bathyal food fall, a six month study in the NE Atlantic. Marine Ecology Progress Series, 310. 65-76. https://doi.org/10.3354/meps310065 <https://doi.org/10.3354/meps310065> Zoology Ecology and Environment Publication - Article PeerReviewed 2006 ftnerc https://doi.org/10.3354/meps310065 2024-05-15T08:39:04Z We deployed 2 porpoise (Phocoena phocoena) carcasses at bathyal depth (2555 to 2710 m) in the Porcupine Seabight, NE Atlantic for periods of 1 wk and 6 mo respectively. Consumption rates of 0.085 and 0.078 kg h–1 were similar to those observed at abyssal depths in the Atlantic, and 1 order of magnitude slower than at bathyal depth in the Pacific. A distinct succession of scavenging species was observed at both carcasses: the abyssal grenadier Coryphaenoides armatus and the cusk eel Spectrunculus grandis numerically dominated the initial phase of carcass consumption and, once the bulk of the soft tissue had been removed (by Day 15), were succeeded by the squat lobster Munidopsis crassa. The blue hake Antimora rostrata and amphipod numbers were unexpectedly low, and consumption was attributed largely to direct feeding by C. armatus. The interaction of a crustacean prey species (M. crassa) and cephalopod predator (Benthoctopus sp.) was observed for the first time, revealing that large food falls also attract secondary predators that do not utilise the food fall directly. The staying time of a single parasitised C. armatus (18 h) greatly exceeded previous estimates (≤8 h). This study describes the first large food fall to be monitored at high frequency over a 6 mo period, and the first observations of a large food fall at bathyal depth in the NE Atlantic. It enables direct comparison with similarly sized food falls at abyssal depth, much larger megacarrion falls, and similar studies differing in geographic location, in particular those carried out under Pacific whale migration corridors. Article in Journal/Newspaper Phocoena phocoena Natural Environment Research Council: NERC Open Research Archive Pacific Hake ENVELOPE(15.612,15.612,66.797,66.797) Porcupine Seabight ENVELOPE(-13.000,-13.000,50.500,50.500) Marine Ecology Progress Series 310 65 76 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Zoology Ecology and Environment |
spellingShingle |
Zoology Ecology and Environment Kemp, Kirsty M. Jamieson, Alan J. Bagley, Philip M. McGrath, Helen Bailey, David M. Collins, Martin A. Priede, Imants G. Consumption of large bathyal food fall, a six month study in the NE Atlantic |
topic_facet |
Zoology Ecology and Environment |
description |
We deployed 2 porpoise (Phocoena phocoena) carcasses at bathyal depth (2555 to 2710 m) in the Porcupine Seabight, NE Atlantic for periods of 1 wk and 6 mo respectively. Consumption rates of 0.085 and 0.078 kg h–1 were similar to those observed at abyssal depths in the Atlantic, and 1 order of magnitude slower than at bathyal depth in the Pacific. A distinct succession of scavenging species was observed at both carcasses: the abyssal grenadier Coryphaenoides armatus and the cusk eel Spectrunculus grandis numerically dominated the initial phase of carcass consumption and, once the bulk of the soft tissue had been removed (by Day 15), were succeeded by the squat lobster Munidopsis crassa. The blue hake Antimora rostrata and amphipod numbers were unexpectedly low, and consumption was attributed largely to direct feeding by C. armatus. The interaction of a crustacean prey species (M. crassa) and cephalopod predator (Benthoctopus sp.) was observed for the first time, revealing that large food falls also attract secondary predators that do not utilise the food fall directly. The staying time of a single parasitised C. armatus (18 h) greatly exceeded previous estimates (≤8 h). This study describes the first large food fall to be monitored at high frequency over a 6 mo period, and the first observations of a large food fall at bathyal depth in the NE Atlantic. It enables direct comparison with similarly sized food falls at abyssal depth, much larger megacarrion falls, and similar studies differing in geographic location, in particular those carried out under Pacific whale migration corridors. |
format |
Article in Journal/Newspaper |
author |
Kemp, Kirsty M. Jamieson, Alan J. Bagley, Philip M. McGrath, Helen Bailey, David M. Collins, Martin A. Priede, Imants G. |
author_facet |
Kemp, Kirsty M. Jamieson, Alan J. Bagley, Philip M. McGrath, Helen Bailey, David M. Collins, Martin A. Priede, Imants G. |
author_sort |
Kemp, Kirsty M. |
title |
Consumption of large bathyal food fall, a six month study in the NE Atlantic |
title_short |
Consumption of large bathyal food fall, a six month study in the NE Atlantic |
title_full |
Consumption of large bathyal food fall, a six month study in the NE Atlantic |
title_fullStr |
Consumption of large bathyal food fall, a six month study in the NE Atlantic |
title_full_unstemmed |
Consumption of large bathyal food fall, a six month study in the NE Atlantic |
title_sort |
consumption of large bathyal food fall, a six month study in the ne atlantic |
publisher |
Inter-Research |
publishDate |
2006 |
url |
http://nora.nerc.ac.uk/id/eprint/70/ http://www.int-res.com/articles/meps2006/310/m310p065.pdf https://doi.org/10.3354/meps310065 |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) ENVELOPE(-13.000,-13.000,50.500,50.500) |
geographic |
Pacific Hake Porcupine Seabight |
geographic_facet |
Pacific Hake Porcupine Seabight |
genre |
Phocoena phocoena |
genre_facet |
Phocoena phocoena |
op_relation |
Kemp, Kirsty M.; Jamieson, Alan J.; Bagley, Philip M.; McGrath, Helen; Bailey, David M.; Collins, Martin A. orcid:0000-0001-7132-8650 Priede, Imants G. 2006 Consumption of large bathyal food fall, a six month study in the NE Atlantic. Marine Ecology Progress Series, 310. 65-76. https://doi.org/10.3354/meps310065 <https://doi.org/10.3354/meps310065> |
op_doi |
https://doi.org/10.3354/meps310065 |
container_title |
Marine Ecology Progress Series |
container_volume |
310 |
container_start_page |
65 |
op_container_end_page |
76 |
_version_ |
1801381145317736448 |