The relationship between numbers of fish attracted to baited cameras and population density: Studies on demersal grenadiers Coryphaenoides (Nematonurus) armatus in the abyssal NE Atlantic Ocean

Imants George Priede, N R Merrett

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The number of Coryphaenoides (Nematonurus) armatus attracted to baits (N-peak) at depths of 2000-5000 m in the NE Atlantic Ocean is shown to vary with fish density (n km(-2)) in accordance with the equation:

N-peak = dn/x (1 - exp((-c exp (-nk) -m)x))

where c = 350, d = 4.095 x 10(-3), k = 0.0037, m = 10, x = 0.005 which predicts a dome-shaped relationship with a maximum number observed at intermediate population densities. This results from more rapid arrival of fish at high densities being offset by shorter staying times in the food-rich environment of high-density localities. Caution is advised when using attraction of fish to baited cameras as an index of stock abundance. (C) 1998 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)133-137
Number of pages5
JournalFisheries Research
Volume36
Issue number2-3
Publication statusPublished - 15 Jun 1998

Keywords

  • Macrouridae
  • abundance index
  • bait
  • Coryphaenoides
  • deep-sea
  • optimal foraging
  • EASTERN NORTH-ATLANTIC
  • PORCUPINE SEABIGHT
  • NORTHEASTERN ATLANTIC
  • ASSEMBLAGE STRUCTURE
  • CORYPHAENOIDES-(NEMATONURUS)-ARMATUS
  • MACROURIDAE
  • TRACKING
  • BEHAVIOR
  • PACIFIC
  • SLOPE

Cite this

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title = "The relationship between numbers of fish attracted to baited cameras and population density: Studies on demersal grenadiers Coryphaenoides (Nematonurus) armatus in the abyssal NE Atlantic Ocean",
abstract = "The number of Coryphaenoides (Nematonurus) armatus attracted to baits (N-peak) at depths of 2000-5000 m in the NE Atlantic Ocean is shown to vary with fish density (n km(-2)) in accordance with the equation:N-peak = dn/x (1 - exp((-c exp (-nk) -m)x))where c = 350, d = 4.095 x 10(-3), k = 0.0037, m = 10, x = 0.005 which predicts a dome-shaped relationship with a maximum number observed at intermediate population densities. This results from more rapid arrival of fish at high densities being offset by shorter staying times in the food-rich environment of high-density localities. Caution is advised when using attraction of fish to baited cameras as an index of stock abundance. (C) 1998 Elsevier Science B.V. All rights reserved.",
keywords = "Macrouridae, abundance index, bait, Coryphaenoides, deep-sea, optimal foraging, EASTERN NORTH-ATLANTIC, PORCUPINE SEABIGHT, NORTHEASTERN ATLANTIC, ASSEMBLAGE STRUCTURE, CORYPHAENOIDES-(NEMATONURUS)-ARMATUS, MACROURIDAE, TRACKING, BEHAVIOR, PACIFIC, SLOPE",
author = "Priede, {Imants George} and Merrett, {N R}",
year = "1998",
month = "6",
day = "15",
language = "English",
volume = "36",
pages = "133--137",
journal = "Fisheries Research",
issn = "0165-7836",
publisher = "Elsevier Science B. V.",
number = "2-3",

}

TY - JOUR

T1 - The relationship between numbers of fish attracted to baited cameras and population density: Studies on demersal grenadiers Coryphaenoides (Nematonurus) armatus in the abyssal NE Atlantic Ocean

AU - Priede, Imants George

AU - Merrett, N R

PY - 1998/6/15

Y1 - 1998/6/15

N2 - The number of Coryphaenoides (Nematonurus) armatus attracted to baits (N-peak) at depths of 2000-5000 m in the NE Atlantic Ocean is shown to vary with fish density (n km(-2)) in accordance with the equation:N-peak = dn/x (1 - exp((-c exp (-nk) -m)x))where c = 350, d = 4.095 x 10(-3), k = 0.0037, m = 10, x = 0.005 which predicts a dome-shaped relationship with a maximum number observed at intermediate population densities. This results from more rapid arrival of fish at high densities being offset by shorter staying times in the food-rich environment of high-density localities. Caution is advised when using attraction of fish to baited cameras as an index of stock abundance. (C) 1998 Elsevier Science B.V. All rights reserved.

AB - The number of Coryphaenoides (Nematonurus) armatus attracted to baits (N-peak) at depths of 2000-5000 m in the NE Atlantic Ocean is shown to vary with fish density (n km(-2)) in accordance with the equation:N-peak = dn/x (1 - exp((-c exp (-nk) -m)x))where c = 350, d = 4.095 x 10(-3), k = 0.0037, m = 10, x = 0.005 which predicts a dome-shaped relationship with a maximum number observed at intermediate population densities. This results from more rapid arrival of fish at high densities being offset by shorter staying times in the food-rich environment of high-density localities. Caution is advised when using attraction of fish to baited cameras as an index of stock abundance. (C) 1998 Elsevier Science B.V. All rights reserved.

KW - Macrouridae

KW - abundance index

KW - bait

KW - Coryphaenoides

KW - deep-sea

KW - optimal foraging

KW - EASTERN NORTH-ATLANTIC

KW - PORCUPINE SEABIGHT

KW - NORTHEASTERN ATLANTIC

KW - ASSEMBLAGE STRUCTURE

KW - CORYPHAENOIDES-(NEMATONURUS)-ARMATUS

KW - MACROURIDAE

KW - TRACKING

KW - BEHAVIOR

KW - PACIFIC

KW - SLOPE

M3 - Article

VL - 36

SP - 133

EP - 137

JO - Fisheries Research

JF - Fisheries Research

SN - 0165-7836

IS - 2-3

ER -