Bathymetric distribution of some benthic and benthopelagic species attracted to baited cameras and traps in the deep eastern Mediterranean

E G Jones, A Tselepides, P M Bagley, M A Collins, I G Priede

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

A series of baited camera and trap experiments in the eastern Mediterranean Sea between 1500 and 4264 m depth attracted a variety of opportunistic scavengers, with species composition changing with increasing depth, At the shallower stations (1500 to 1800 m), decapod crustaceans and fishes, dominated by elasmobranchs such as Hexanchus griseus, were attracted to and actively consumed the bait. Some of these species were observed at depths exceeding their previously reported ranges. This was believed to be a result of the absence of deep-water scavengers from the adjacent Atlantic due to dispersal barriers and elevated temperatures at depth. The diversity of bait-attending fauna declined with increasing depth. Elasmobranchs were not observed below 2500 m, and below 4000 m only the caridean shrimp Acanthephyra eximia and the macrourid Chalinura mediterranea were present; at this latter depth, bait consumption was negligible. This shift in species composition was reflected in changes in first arrival times. Increasing first arrival times of H. griseus suggested a decline in relative abundance from 1500 to 2500 m, whilst those of C. mediterranea indicated an increase in relative abundance from 1800 to 4264 m.

Original languageEnglish
Pages (from-to)75-86
Number of pages12
JournalMarine Ecology Progress Series
Volume251
Publication statusPublished - 2003

Keywords

  • baited camera
  • autonomous lander
  • Hexanchus griseus
  • Chalinura mediterranea
  • NORTHEAST ATLANTIC-OCEAN
  • DEMERSAL FISH
  • CONTINENTAL-SHELF
  • CRETAN SEA
  • MEGAFAUNAL ASSEMBLAGES
  • RELATIVE DENSITY
  • UNDERWATER VIDEO
  • FEEDING-HABITS
  • ROCKALL TROUGH
  • DEPTH

Cite this

Bathymetric distribution of some benthic and benthopelagic species attracted to baited cameras and traps in the deep eastern Mediterranean. / Jones, E G ; Tselepides, A ; Bagley, P M ; Collins, M A ; Priede, I G .

In: Marine Ecology Progress Series, Vol. 251, 2003, p. 75-86.

Research output: Contribution to journalArticle

@article{7ddb5cc75f60440a84c3991c453e459c,
title = "Bathymetric distribution of some benthic and benthopelagic species attracted to baited cameras and traps in the deep eastern Mediterranean",
abstract = "A series of baited camera and trap experiments in the eastern Mediterranean Sea between 1500 and 4264 m depth attracted a variety of opportunistic scavengers, with species composition changing with increasing depth, At the shallower stations (1500 to 1800 m), decapod crustaceans and fishes, dominated by elasmobranchs such as Hexanchus griseus, were attracted to and actively consumed the bait. Some of these species were observed at depths exceeding their previously reported ranges. This was believed to be a result of the absence of deep-water scavengers from the adjacent Atlantic due to dispersal barriers and elevated temperatures at depth. The diversity of bait-attending fauna declined with increasing depth. Elasmobranchs were not observed below 2500 m, and below 4000 m only the caridean shrimp Acanthephyra eximia and the macrourid Chalinura mediterranea were present; at this latter depth, bait consumption was negligible. This shift in species composition was reflected in changes in first arrival times. Increasing first arrival times of H. griseus suggested a decline in relative abundance from 1500 to 2500 m, whilst those of C. mediterranea indicated an increase in relative abundance from 1800 to 4264 m.",
keywords = "baited camera, autonomous lander, Hexanchus griseus, Chalinura mediterranea, NORTHEAST ATLANTIC-OCEAN, DEMERSAL FISH, CONTINENTAL-SHELF, CRETAN SEA, MEGAFAUNAL ASSEMBLAGES, RELATIVE DENSITY, UNDERWATER VIDEO, FEEDING-HABITS, ROCKALL TROUGH, DEPTH",
author = "Jones, {E G} and A Tselepides and Bagley, {P M} and Collins, {M A} and Priede, {I G}",
year = "2003",
language = "English",
volume = "251",
pages = "75--86",
journal = "Marine Ecology Progress Series",
issn = "0171-8630",
publisher = "Inter-Research",

}

TY - JOUR

T1 - Bathymetric distribution of some benthic and benthopelagic species attracted to baited cameras and traps in the deep eastern Mediterranean

AU - Jones, E G

AU - Tselepides, A

AU - Bagley, P M

AU - Collins, M A

AU - Priede, I G

PY - 2003

Y1 - 2003

N2 - A series of baited camera and trap experiments in the eastern Mediterranean Sea between 1500 and 4264 m depth attracted a variety of opportunistic scavengers, with species composition changing with increasing depth, At the shallower stations (1500 to 1800 m), decapod crustaceans and fishes, dominated by elasmobranchs such as Hexanchus griseus, were attracted to and actively consumed the bait. Some of these species were observed at depths exceeding their previously reported ranges. This was believed to be a result of the absence of deep-water scavengers from the adjacent Atlantic due to dispersal barriers and elevated temperatures at depth. The diversity of bait-attending fauna declined with increasing depth. Elasmobranchs were not observed below 2500 m, and below 4000 m only the caridean shrimp Acanthephyra eximia and the macrourid Chalinura mediterranea were present; at this latter depth, bait consumption was negligible. This shift in species composition was reflected in changes in first arrival times. Increasing first arrival times of H. griseus suggested a decline in relative abundance from 1500 to 2500 m, whilst those of C. mediterranea indicated an increase in relative abundance from 1800 to 4264 m.

AB - A series of baited camera and trap experiments in the eastern Mediterranean Sea between 1500 and 4264 m depth attracted a variety of opportunistic scavengers, with species composition changing with increasing depth, At the shallower stations (1500 to 1800 m), decapod crustaceans and fishes, dominated by elasmobranchs such as Hexanchus griseus, were attracted to and actively consumed the bait. Some of these species were observed at depths exceeding their previously reported ranges. This was believed to be a result of the absence of deep-water scavengers from the adjacent Atlantic due to dispersal barriers and elevated temperatures at depth. The diversity of bait-attending fauna declined with increasing depth. Elasmobranchs were not observed below 2500 m, and below 4000 m only the caridean shrimp Acanthephyra eximia and the macrourid Chalinura mediterranea were present; at this latter depth, bait consumption was negligible. This shift in species composition was reflected in changes in first arrival times. Increasing first arrival times of H. griseus suggested a decline in relative abundance from 1500 to 2500 m, whilst those of C. mediterranea indicated an increase in relative abundance from 1800 to 4264 m.

KW - baited camera

KW - autonomous lander

KW - Hexanchus griseus

KW - Chalinura mediterranea

KW - NORTHEAST ATLANTIC-OCEAN

KW - DEMERSAL FISH

KW - CONTINENTAL-SHELF

KW - CRETAN SEA

KW - MEGAFAUNAL ASSEMBLAGES

KW - RELATIVE DENSITY

KW - UNDERWATER VIDEO

KW - FEEDING-HABITS

KW - ROCKALL TROUGH

KW - DEPTH

M3 - Article

VL - 251

SP - 75

EP - 86

JO - Marine Ecology Progress Series

JF - Marine Ecology Progress Series

SN - 0171-8630

ER -