Application of depletion methods to estimate stock size in the squid Loligo forbesi in Scottish waters (UK)

Iain Alexander Graham Young; Graham John Pierce; H. I. Daly; Maria Begona Santos Vazquez; Linda Napier Key; N. Bailey; Jean-Paul Robin; A. J. Bishop; Gabriele Stowasser; M Nyegaard; S Cho; M. Rasero; Joao Pereira

doi:10.1016/j.fishres.2004.04.013

Application of depletion methods to estimate stock size in the squid Loligo forbesi in Scottish waters (UK)

Iain Alexander Graham Young, Graham John Pierce, H. I. Daly, Maria Begona Santos Vazquez, Linda Napier Key, N. Bailey, Jean-Paul Robin, A. J. Bishop, Gabriele Stowasser, M Nyegaard, S Cho, M. Rasero, Joao Pereira

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

Abundance of the loliginid squid Loligo forbesi in Western and Northern Scottish (UK) waters (ICES fishery subdivisions lVa and VIa) 1989-1998 was estimated using "depletion" methods. Fishery catch and effort data for UK and French fishing vessels were obtained from official government statistics. Biological data were collected during monthly sampling visits to Kinlochbervie (Scotland, UK) fish market. Effects of using different indices for natural mortality and different model fits were evaluated. The results indicate initial (pre-fishing season) annual population sizes in the order of 10(6) animals. Significant between-year variation in the seasonal pattern of body weight and recruitment indicates that contemporaneous biological data, collected every month (or more frequently) are needed to underpin annual estimates. (C) 2004 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	211-227
Number of pages	16
Journal	Fisheries Research
Volume	69
Issue number	2
DOIs	https://doi.org/10.1016/j.fishres.2004.04.013
Publication status	Published - Sept 2004

Keywords

Loligo forbesi
stock assessment
depletion model
English-Channel
Northeast Atlantic
Falkland Islands
Cephalopoda
population
fishery
loliginidae
abundance
recruitment
migration

Access to Document

10.1016/j.fishres.2004.04.013

Cite this

Young, I. A. G., Pierce, G. J., Daly, H. I., Santos Vazquez, M. B., Key, L. N., Bailey, N., Robin, J.-P., Bishop, A. J., Stowasser, G., Nyegaard, M., Cho, S., Rasero, M., & Pereira, J. (2004). Application of depletion methods to estimate stock size in the squid Loligo forbesi in Scottish waters (UK). Fisheries Research, 69(2), 211-227. https://doi.org/10.1016/j.fishres.2004.04.013

@article{41f17208933c4da18f212f7998b00269,

title = "Application of depletion methods to estimate stock size in the squid Loligo forbesi in Scottish waters (UK)",

abstract = "Abundance of the loliginid squid Loligo forbesi in Western and Northern Scottish (UK) waters (ICES fishery subdivisions lVa and VIa) 1989-1998 was estimated using {"}depletion{"} methods. Fishery catch and effort data for UK and French fishing vessels were obtained from official government statistics. Biological data were collected during monthly sampling visits to Kinlochbervie (Scotland, UK) fish market. Effects of using different indices for natural mortality and different model fits were evaluated. The results indicate initial (pre-fishing season) annual population sizes in the order of 10(6) animals. Significant between-year variation in the seasonal pattern of body weight and recruitment indicates that contemporaneous biological data, collected every month (or more frequently) are needed to underpin annual estimates. (C) 2004 Elsevier B.V. All rights reserved.",

keywords = "Loligo forbesi, stock assessment, depletion model, English-Channel, Northeast Atlantic, Falkland Islands, Cephalopoda, population, fishery, loliginidae, abundance, recruitment, migration",

author = "Young, {Iain Alexander Graham} and Pierce, {Graham John} and Daly, {H. I.} and {Santos Vazquez}, {Maria Begona} and Key, {Linda Napier} and N. Bailey and Jean-Paul Robin and Bishop, {A. J.} and Gabriele Stowasser and M Nyegaard and S Cho and M. Rasero and Joao Pereira",

year = "2004",

month = sep,

doi = "10.1016/j.fishres.2004.04.013",

language = "English",

volume = "69",

pages = "211--227",

journal = "Fisheries Research",

issn = "0165-7836",

publisher = "Elsevier Science B. V.",

number = "2",

}

TY - JOUR

T1 - Application of depletion methods to estimate stock size in the squid Loligo forbesi in Scottish waters (UK)

AU - Young, Iain Alexander Graham

AU - Pierce, Graham John

AU - Daly, H. I.

AU - Santos Vazquez, Maria Begona

AU - Key, Linda Napier

AU - Bailey, N.

AU - Robin, Jean-Paul

AU - Bishop, A. J.

AU - Stowasser, Gabriele

AU - Nyegaard, M

AU - Cho, S

AU - Rasero, M.

AU - Pereira, Joao

PY - 2004/9

Y1 - 2004/9

N2 - Abundance of the loliginid squid Loligo forbesi in Western and Northern Scottish (UK) waters (ICES fishery subdivisions lVa and VIa) 1989-1998 was estimated using "depletion" methods. Fishery catch and effort data for UK and French fishing vessels were obtained from official government statistics. Biological data were collected during monthly sampling visits to Kinlochbervie (Scotland, UK) fish market. Effects of using different indices for natural mortality and different model fits were evaluated. The results indicate initial (pre-fishing season) annual population sizes in the order of 10(6) animals. Significant between-year variation in the seasonal pattern of body weight and recruitment indicates that contemporaneous biological data, collected every month (or more frequently) are needed to underpin annual estimates. (C) 2004 Elsevier B.V. All rights reserved.

AB - Abundance of the loliginid squid Loligo forbesi in Western and Northern Scottish (UK) waters (ICES fishery subdivisions lVa and VIa) 1989-1998 was estimated using "depletion" methods. Fishery catch and effort data for UK and French fishing vessels were obtained from official government statistics. Biological data were collected during monthly sampling visits to Kinlochbervie (Scotland, UK) fish market. Effects of using different indices for natural mortality and different model fits were evaluated. The results indicate initial (pre-fishing season) annual population sizes in the order of 10(6) animals. Significant between-year variation in the seasonal pattern of body weight and recruitment indicates that contemporaneous biological data, collected every month (or more frequently) are needed to underpin annual estimates. (C) 2004 Elsevier B.V. All rights reserved.

KW - Loligo forbesi

KW - stock assessment

KW - depletion model

KW - English-Channel

KW - Northeast Atlantic

KW - Falkland Islands

KW - Cephalopoda

KW - population

KW - fishery

KW - loliginidae

KW - abundance

KW - recruitment

KW - migration

U2 - 10.1016/j.fishres.2004.04.013

DO - 10.1016/j.fishres.2004.04.013

M3 - Article

SN - 0165-7836

VL - 69

SP - 211

EP - 227

JO - Fisheries Research

JF - Fisheries Research

IS - 2

ER -

Application of depletion methods to estimate stock size in the squid Loligo forbesi in Scottish waters (UK)

Abstract

Keywords

Access to Document

Fingerprint

Cite this