Behavioural observations on the scavenging fauna of the Patagonian slope

M A Collins, C Yau, C P Nolan, P M Bagley, I G Priede

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The scavenging fauna of the Patagonian slope (900-1750 m), east of the Falkland Islands was investigated using the Aberdeen University Deep Ocean Submersible (AUDOS), an autonomous baited camera vehicle designed to photograph scavenging fish and invertebrates. The AUDOS was deployed on ten occasions in Falkland waters. Nine experiments were of 10-14 h duration and baited with 800 g of squid and one experiment: lasted six days, baited with a 10 kg toothfish (Dissostichus eleginoides). Analysis of photographs revealed considerable patchiness in the composition of the scavenging fauna. Hagfish (Myxine cf fernholmi) dominated three of the shallower experiments including the 6-d experiment, arriving quickly from down-current, holding station at the bait and consuming the soft tissues first, with consumption rates of up to 200 g h(-1). In the other experiments, stone crabs (Lithodidae), the blue-hake (Antimora rostrata) and amphipods were the primary consumers, but the rate of bait consumption was lower. Patagonian toothfish (D. eleginoides) were attracted to the bait at each experiment, but did not attempt to consume the bait. The patchiness in the fauna may be a result of depth, substratum and topography, but in general the rapid response of the scavenging fauna indicates that carrion is rapidly dispersed, with little impact on the local sediment community.

Original languageEnglish
Pages (from-to)963-970
Number of pages8
JournalJournal of the Marine Biological Association of the United Kingdom
Volume79
Publication statusPublished - 1999

Keywords

  • DEEP-SEA FLOOR
  • DEMERSAL FISHES
  • NORTHEAST ATLANTIC
  • ACOUSTIC TRACKING
  • FALKLAND ISLANDS
  • NEKTON FALLS
  • DISPERSAL
  • COMMUNITY
  • ABUNDANCE
  • HAGFISH

Cite this

Collins, M. A., Yau, C., Nolan, C. P., Bagley, P. M., & Priede, I. G. (1999). Behavioural observations on the scavenging fauna of the Patagonian slope. Journal of the Marine Biological Association of the United Kingdom, 79, 963-970.

Behavioural observations on the scavenging fauna of the Patagonian slope. / Collins, M A ; Yau, C ; Nolan, C P ; Bagley, P M ; Priede, I G .

In: Journal of the Marine Biological Association of the United Kingdom, Vol. 79, 1999, p. 963-970.

Research output: Contribution to journalArticle

Collins, M A ; Yau, C ; Nolan, C P ; Bagley, P M ; Priede, I G . / Behavioural observations on the scavenging fauna of the Patagonian slope. In: Journal of the Marine Biological Association of the United Kingdom. 1999 ; Vol. 79. pp. 963-970.
@article{82ef820e93944c34978b1f0db31b5b02,
title = "Behavioural observations on the scavenging fauna of the Patagonian slope",
abstract = "The scavenging fauna of the Patagonian slope (900-1750 m), east of the Falkland Islands was investigated using the Aberdeen University Deep Ocean Submersible (AUDOS), an autonomous baited camera vehicle designed to photograph scavenging fish and invertebrates. The AUDOS was deployed on ten occasions in Falkland waters. Nine experiments were of 10-14 h duration and baited with 800 g of squid and one experiment: lasted six days, baited with a 10 kg toothfish (Dissostichus eleginoides). Analysis of photographs revealed considerable patchiness in the composition of the scavenging fauna. Hagfish (Myxine cf fernholmi) dominated three of the shallower experiments including the 6-d experiment, arriving quickly from down-current, holding station at the bait and consuming the soft tissues first, with consumption rates of up to 200 g h(-1). In the other experiments, stone crabs (Lithodidae), the blue-hake (Antimora rostrata) and amphipods were the primary consumers, but the rate of bait consumption was lower. Patagonian toothfish (D. eleginoides) were attracted to the bait at each experiment, but did not attempt to consume the bait. The patchiness in the fauna may be a result of depth, substratum and topography, but in general the rapid response of the scavenging fauna indicates that carrion is rapidly dispersed, with little impact on the local sediment community.",
keywords = "DEEP-SEA FLOOR, DEMERSAL FISHES, NORTHEAST ATLANTIC, ACOUSTIC TRACKING, FALKLAND ISLANDS, NEKTON FALLS, DISPERSAL, COMMUNITY, ABUNDANCE, HAGFISH",
author = "Collins, {M A} and C Yau and Nolan, {C P} and Bagley, {P M} and Priede, {I G}",
year = "1999",
language = "English",
volume = "79",
pages = "963--970",
journal = "Journal of the Marine Biological Association of the United Kingdom",
issn = "0025-3154",
publisher = "Cambridge University Press",

}

TY - JOUR

T1 - Behavioural observations on the scavenging fauna of the Patagonian slope

AU - Collins, M A

AU - Yau, C

AU - Nolan, C P

AU - Bagley, P M

AU - Priede, I G

PY - 1999

Y1 - 1999

N2 - The scavenging fauna of the Patagonian slope (900-1750 m), east of the Falkland Islands was investigated using the Aberdeen University Deep Ocean Submersible (AUDOS), an autonomous baited camera vehicle designed to photograph scavenging fish and invertebrates. The AUDOS was deployed on ten occasions in Falkland waters. Nine experiments were of 10-14 h duration and baited with 800 g of squid and one experiment: lasted six days, baited with a 10 kg toothfish (Dissostichus eleginoides). Analysis of photographs revealed considerable patchiness in the composition of the scavenging fauna. Hagfish (Myxine cf fernholmi) dominated three of the shallower experiments including the 6-d experiment, arriving quickly from down-current, holding station at the bait and consuming the soft tissues first, with consumption rates of up to 200 g h(-1). In the other experiments, stone crabs (Lithodidae), the blue-hake (Antimora rostrata) and amphipods were the primary consumers, but the rate of bait consumption was lower. Patagonian toothfish (D. eleginoides) were attracted to the bait at each experiment, but did not attempt to consume the bait. The patchiness in the fauna may be a result of depth, substratum and topography, but in general the rapid response of the scavenging fauna indicates that carrion is rapidly dispersed, with little impact on the local sediment community.

AB - The scavenging fauna of the Patagonian slope (900-1750 m), east of the Falkland Islands was investigated using the Aberdeen University Deep Ocean Submersible (AUDOS), an autonomous baited camera vehicle designed to photograph scavenging fish and invertebrates. The AUDOS was deployed on ten occasions in Falkland waters. Nine experiments were of 10-14 h duration and baited with 800 g of squid and one experiment: lasted six days, baited with a 10 kg toothfish (Dissostichus eleginoides). Analysis of photographs revealed considerable patchiness in the composition of the scavenging fauna. Hagfish (Myxine cf fernholmi) dominated three of the shallower experiments including the 6-d experiment, arriving quickly from down-current, holding station at the bait and consuming the soft tissues first, with consumption rates of up to 200 g h(-1). In the other experiments, stone crabs (Lithodidae), the blue-hake (Antimora rostrata) and amphipods were the primary consumers, but the rate of bait consumption was lower. Patagonian toothfish (D. eleginoides) were attracted to the bait at each experiment, but did not attempt to consume the bait. The patchiness in the fauna may be a result of depth, substratum and topography, but in general the rapid response of the scavenging fauna indicates that carrion is rapidly dispersed, with little impact on the local sediment community.

KW - DEEP-SEA FLOOR

KW - DEMERSAL FISHES

KW - NORTHEAST ATLANTIC

KW - ACOUSTIC TRACKING

KW - FALKLAND ISLANDS

KW - NEKTON FALLS

KW - DISPERSAL

KW - COMMUNITY

KW - ABUNDANCE

KW - HAGFISH

M3 - Article

VL - 79

SP - 963

EP - 970

JO - Journal of the Marine Biological Association of the United Kingdom

JF - Journal of the Marine Biological Association of the United Kingdom

SN - 0025-3154

ER -