Baited camera observations of deep-sea demersal fishes of the Northeast Atlantic Ocean at 15o - 28oN off West Africa

Imants George Priede, Philip Michael Bagley

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

For the first time the autonomous free-fall vehicle AUDOS was deployed at low latitudes in the northeast Atlantic Ocean. Observations of deep demersal fishes attracted to baited cameras were made at three stations near upwelling areas off West Africa: Canaries (27degrees20'N, 16degrees59'W), Cape Verde Terrace (17degrees45'N, 20degrees30'W), and Cape Verde Abyssal Plain (15degrees00'N, 20degrees30'W). The grenadier Coryphaenoides (Nematonurus) armatus was the main species attracted to the bait. Other fish species observed at bait were the eel Histiobranchus bathybius, a zoarcid, and the ophidiids Barathrites iris and Spectrunculus grandis. A comparison was made between this study area and the stations Porcupine Abyssal Plain (48degrees50'N, 16degrees30'W), which is eutrophic, and Madeira Abyssal Plain (31degrees00'N, 20degrees00'W), which is oligotrophic. These are situated on either side of a proposed faunal divide at 40degrees00'N with a high abundance of large species of rattails to the north and lower biomass of smaller fish species to the south. This study revealed a high abundance of large C. (N.) armatus at 17degrees00'N, which is a violation of this putative zoogeographic divide. It is suggested that high primary productivity and upwelling off West Africa sustain this assemblage of deep demersal fishes.

Original languageEnglish
Pages (from-to)307-314
Number of pages7
JournalMarine Biology
Volume141
DOIs
Publication statusPublished - 2002

Keywords

  • SCAVENGER ASSEMBLAGES
  • ARABIAN SEA
  • CONSUMPTION
  • CARCASSES
  • TRACKING
  • BEHAVIOR

Cite this

Baited camera observations of deep-sea demersal fishes of the Northeast Atlantic Ocean at 15o - 28oN off West Africa. / Priede, Imants George; Bagley, Philip Michael.

In: Marine Biology, Vol. 141, 2002, p. 307-314.

Research output: Contribution to journalArticle

Priede, Imants George ; Bagley, Philip Michael. / Baited camera observations of deep-sea demersal fishes of the Northeast Atlantic Ocean at 15o - 28oN off West Africa. In: Marine Biology. 2002 ; Vol. 141. pp. 307-314.
@article{3912aff2dce642c39d40d9ce8c41e84c,
title = "Baited camera observations of deep-sea demersal fishes of the Northeast Atlantic Ocean at 15o - 28oN off West Africa",
abstract = "For the first time the autonomous free-fall vehicle AUDOS was deployed at low latitudes in the northeast Atlantic Ocean. Observations of deep demersal fishes attracted to baited cameras were made at three stations near upwelling areas off West Africa: Canaries (27degrees20'N, 16degrees59'W), Cape Verde Terrace (17degrees45'N, 20degrees30'W), and Cape Verde Abyssal Plain (15degrees00'N, 20degrees30'W). The grenadier Coryphaenoides (Nematonurus) armatus was the main species attracted to the bait. Other fish species observed at bait were the eel Histiobranchus bathybius, a zoarcid, and the ophidiids Barathrites iris and Spectrunculus grandis. A comparison was made between this study area and the stations Porcupine Abyssal Plain (48degrees50'N, 16degrees30'W), which is eutrophic, and Madeira Abyssal Plain (31degrees00'N, 20degrees00'W), which is oligotrophic. These are situated on either side of a proposed faunal divide at 40degrees00'N with a high abundance of large species of rattails to the north and lower biomass of smaller fish species to the south. This study revealed a high abundance of large C. (N.) armatus at 17degrees00'N, which is a violation of this putative zoogeographic divide. It is suggested that high primary productivity and upwelling off West Africa sustain this assemblage of deep demersal fishes.",
keywords = "SCAVENGER ASSEMBLAGES, ARABIAN SEA, CONSUMPTION, CARCASSES, TRACKING, BEHAVIOR",
author = "Priede, {Imants George} and Bagley, {Philip Michael}",
year = "2002",
doi = "10.1007/s00227-002-0833-6",
language = "English",
volume = "141",
pages = "307--314",
journal = "Marine Biology",
issn = "0025-3162",
publisher = "Springer Heidelberg",

}

TY - JOUR

T1 - Baited camera observations of deep-sea demersal fishes of the Northeast Atlantic Ocean at 15o - 28oN off West Africa

AU - Priede, Imants George

AU - Bagley, Philip Michael

PY - 2002

Y1 - 2002

N2 - For the first time the autonomous free-fall vehicle AUDOS was deployed at low latitudes in the northeast Atlantic Ocean. Observations of deep demersal fishes attracted to baited cameras were made at three stations near upwelling areas off West Africa: Canaries (27degrees20'N, 16degrees59'W), Cape Verde Terrace (17degrees45'N, 20degrees30'W), and Cape Verde Abyssal Plain (15degrees00'N, 20degrees30'W). The grenadier Coryphaenoides (Nematonurus) armatus was the main species attracted to the bait. Other fish species observed at bait were the eel Histiobranchus bathybius, a zoarcid, and the ophidiids Barathrites iris and Spectrunculus grandis. A comparison was made between this study area and the stations Porcupine Abyssal Plain (48degrees50'N, 16degrees30'W), which is eutrophic, and Madeira Abyssal Plain (31degrees00'N, 20degrees00'W), which is oligotrophic. These are situated on either side of a proposed faunal divide at 40degrees00'N with a high abundance of large species of rattails to the north and lower biomass of smaller fish species to the south. This study revealed a high abundance of large C. (N.) armatus at 17degrees00'N, which is a violation of this putative zoogeographic divide. It is suggested that high primary productivity and upwelling off West Africa sustain this assemblage of deep demersal fishes.

AB - For the first time the autonomous free-fall vehicle AUDOS was deployed at low latitudes in the northeast Atlantic Ocean. Observations of deep demersal fishes attracted to baited cameras were made at three stations near upwelling areas off West Africa: Canaries (27degrees20'N, 16degrees59'W), Cape Verde Terrace (17degrees45'N, 20degrees30'W), and Cape Verde Abyssal Plain (15degrees00'N, 20degrees30'W). The grenadier Coryphaenoides (Nematonurus) armatus was the main species attracted to the bait. Other fish species observed at bait were the eel Histiobranchus bathybius, a zoarcid, and the ophidiids Barathrites iris and Spectrunculus grandis. A comparison was made between this study area and the stations Porcupine Abyssal Plain (48degrees50'N, 16degrees30'W), which is eutrophic, and Madeira Abyssal Plain (31degrees00'N, 20degrees00'W), which is oligotrophic. These are situated on either side of a proposed faunal divide at 40degrees00'N with a high abundance of large species of rattails to the north and lower biomass of smaller fish species to the south. This study revealed a high abundance of large C. (N.) armatus at 17degrees00'N, which is a violation of this putative zoogeographic divide. It is suggested that high primary productivity and upwelling off West Africa sustain this assemblage of deep demersal fishes.

KW - SCAVENGER ASSEMBLAGES

KW - ARABIAN SEA

KW - CONSUMPTION

KW - CARCASSES

KW - TRACKING

KW - BEHAVIOR

U2 - 10.1007/s00227-002-0833-6

DO - 10.1007/s00227-002-0833-6

M3 - Article

VL - 141

SP - 307

EP - 314

JO - Marine Biology

JF - Marine Biology

SN - 0025-3162

ER -