Growth of the king mackerel (Scomberomorus commerson) off the coast of Natal, South Africa- from length and age data

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Growth parameter estimates for the king mackerel Scomberomorus commerson captured in the multi-species, multi-user fishery off Natal, South Africa, were obtained from a length- and an age-based method. Length composition analysis and age estimates derived from otolith readings yielded Von Bertalanffy growth parameters that adequately describe the growth of young king mackerel (less than 6 years). These growth parameters were based on the assumption that two opaque bands were laid down annually. Consistent with other recent age studies, growth of young king mackerel is very rapid, and the growth curves from both length composition analysis and otoliths reasonably predict the time at liberty for tagged individuals. The reproducibility of otolith readings was described by an index, the average per cent error, which is equal to 20.25% and is higher than than recorded in another study.

Original languageEnglish
Pages (from-to)63-79
Number of pages17
JournalFisheries Research
Volume20
Issue number1
DOIs
Publication statusPublished - 1994

Fingerprint

Scomberomorus
mackerel
otoliths
South Africa
coasts
otolith
coast
reproducibility
fisheries
growth curve
fishery
Africa
parameter
methodology

ASJC Scopus subject areas

  • Aquatic Science

Cite this

@article{8a87870d2931463a933ea4e68bc63dde,
title = "Growth of the king mackerel (Scomberomorus commerson) off the coast of Natal, South Africa- from length and age data",
abstract = "Growth parameter estimates for the king mackerel Scomberomorus commerson captured in the multi-species, multi-user fishery off Natal, South Africa, were obtained from a length- and an age-based method. Length composition analysis and age estimates derived from otolith readings yielded Von Bertalanffy growth parameters that adequately describe the growth of young king mackerel (less than 6 years). These growth parameters were based on the assumption that two opaque bands were laid down annually. Consistent with other recent age studies, growth of young king mackerel is very rapid, and the growth curves from both length composition analysis and otoliths reasonably predict the time at liberty for tagged individuals. The reproducibility of otolith readings was described by an index, the average per cent error, which is equal to 20.25{\%} and is higher than than recorded in another study.",
author = "Anesh Govender",
year = "1994",
doi = "10.1016/0165-7836(94)90006-X",
language = "English",
volume = "20",
pages = "63--79",
journal = "Fisheries Research",
issn = "0165-7836",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Growth of the king mackerel (Scomberomorus commerson) off the coast of Natal, South Africa- from length and age data

AU - Govender, Anesh

PY - 1994

Y1 - 1994

N2 - Growth parameter estimates for the king mackerel Scomberomorus commerson captured in the multi-species, multi-user fishery off Natal, South Africa, were obtained from a length- and an age-based method. Length composition analysis and age estimates derived from otolith readings yielded Von Bertalanffy growth parameters that adequately describe the growth of young king mackerel (less than 6 years). These growth parameters were based on the assumption that two opaque bands were laid down annually. Consistent with other recent age studies, growth of young king mackerel is very rapid, and the growth curves from both length composition analysis and otoliths reasonably predict the time at liberty for tagged individuals. The reproducibility of otolith readings was described by an index, the average per cent error, which is equal to 20.25% and is higher than than recorded in another study.

AB - Growth parameter estimates for the king mackerel Scomberomorus commerson captured in the multi-species, multi-user fishery off Natal, South Africa, were obtained from a length- and an age-based method. Length composition analysis and age estimates derived from otolith readings yielded Von Bertalanffy growth parameters that adequately describe the growth of young king mackerel (less than 6 years). These growth parameters were based on the assumption that two opaque bands were laid down annually. Consistent with other recent age studies, growth of young king mackerel is very rapid, and the growth curves from both length composition analysis and otoliths reasonably predict the time at liberty for tagged individuals. The reproducibility of otolith readings was described by an index, the average per cent error, which is equal to 20.25% and is higher than than recorded in another study.

UR - http://www.scopus.com/inward/record.url?scp=0028165566&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028165566&partnerID=8YFLogxK

U2 - 10.1016/0165-7836(94)90006-X

DO - 10.1016/0165-7836(94)90006-X

M3 - Article

AN - SCOPUS:0028165566

VL - 20

SP - 63

EP - 79

JO - Fisheries Research

JF - Fisheries Research

SN - 0165-7836

IS - 1

ER -