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<meta content="Tracey, Sean R." name="eprints.creators_name" />
<meta content="Lyle, Jeremy M." name="eprints.creators_name" />
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<meta content="Jeremy.Lyle@utas.edu.au" name="eprints.creators_id" />
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<meta content="2007-11-23 04:31:13" name="eprints.datestamp" />
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<meta content="Age validation, growth modeling,
and mortality estimates for striped trumpeter
(Latris lineata) from southeastern Australia:
making the most of patchy data" name="eprints.title" />
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<meta content="Age estimates for striped
trumpeter (Latris lineata) from Tasmanian
waters were produced by
counting annuli on the transverse
section of sagittal otoliths and were
validated by comparison of growth
w ith k nown-age indiv iduals and
modal progression of a strong recruitment
pulse. Estimated ages ranged
from one to 43 years; fast growth
rates were observed for the first five
years. Minimal sexual dimorphism
was shown to exist between length,
weight, and growth characteristics of
striped trumpeter. Seasonal growth
variability was strong in individuals
up to at least age four, and growth
rates peaked approximately one month
after the observed peak in sea surface
temperature. A modified two-phase
von Bertalanffy growth function was
fitted to the length-at-age data, and
the transition between growth phases
was linked to apparent changes in
physiological and life history traits,
including offshore movement as fish
approach maturity. The two-phase
curve was found to represent the
mean length at age in the data better
than the standard von Bertalanffy
g rowth function. Total mortality
was estimated by using catch curve
analysis based on the standard and
two-phase von Bertalanffy growth
functions, and estimates of natural
mortality were calculated by using
two empirical models, one based on
longevity and the other based on the
parameters L∞ and k from both growth
functions. The interactions between
an inshore gillnet fishery targeting
predominately juveniles and an offshore
hook fishery targeting predominately
adults highlight the need to
use a precautionary approach when
developing harvest strategies." name="eprints.abstract" />
<meta content="2005" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Fishery Bulletin" name="eprints.publication" />
<meta content="103" name="eprints.volume" />
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<meta content="Akaike, H.
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parameters. Can. J. Fish. Aquat. Sci. 38:1128−1140" name="eprints.referencetext" />
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and mortality estimates for striped trumpeter
(Latris lineata) from southeastern Australia:
making the most of patchy data" name="DC.title" />
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<meta content="Lyle, Jeremy M." name="DC.creator" />
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<meta content="Age estimates for striped
trumpeter (Latris lineata) from Tasmanian
waters were produced by
counting annuli on the transverse
section of sagittal otoliths and were
validated by comparison of growth
w ith k nown-age indiv iduals and
modal progression of a strong recruitment
pulse. Estimated ages ranged
from one to 43 years; fast growth
rates were observed for the first five
years. Minimal sexual dimorphism
was shown to exist between length,
weight, and growth characteristics of
striped trumpeter. Seasonal growth
variability was strong in individuals
up to at least age four, and growth
rates peaked approximately one month
after the observed peak in sea surface
temperature. A modified two-phase
von Bertalanffy growth function was
fitted to the length-at-age data, and
the transition between growth phases
was linked to apparent changes in
physiological and life history traits,
including offshore movement as fish
approach maturity. The two-phase
curve was found to represent the
mean length at age in the data better
than the standard von Bertalanffy
g rowth function. Total mortality
was estimated by using catch curve
analysis based on the standard and
two-phase von Bertalanffy growth
functions, and estimates of natural
mortality were calculated by using
two empirical models, one based on
longevity and the other based on the
parameters L∞ and k from both growth
functions. The interactions between
an inshore gillnet fishery targeting
predominately juveniles and an offshore
hook fishery targeting predominately
adults highlight the need to
use a precautionary approach when
developing harvest strategies." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Age validation, growth modeling, and mortality estimates for striped trumpeter (Latris lineata) from southeastern Australia: making the most of patchy data</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Tracey, Sean R.</span> and <span class="person_name">Lyle, Jeremy M.</span> (2005) <xhtml:em>Age validation, growth modeling, and mortality estimates for striped trumpeter (Latris lineata) from southeastern Australia: making the most of patchy data.</xhtml:em> Fishery Bulletin, 103 (1). pp. 169-183. ISSN 0090-0656</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_3327' );" href="http://eprints.utas.edu.au/2525/1/Tracey_Lyle_FishBull.pdf" onmouseout="EPJS_HidePreview( event, 'doc_preview_3327' );"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a><div class="ep_preview" id="doc_preview_3327"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/2525/thumbnails/1/preview.png" class="ep_preview_image" border="0" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/2525/1/Tracey_Lyle_FishBull.pdf"><span class="ep_document_citation">PDF</span></a> - Requires a PDF viewer<br />405Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://fishbull.noaa.gov/fcontent.htm">http://fishbull.noaa.gov/fcontent.htm</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Age estimates for striped
trumpeter (Latris lineata) from Tasmanian
waters were produced by
counting annuli on the transverse
section of sagittal otoliths and were
validated by comparison of growth
w ith k nown-age indiv iduals and
modal progression of a strong recruitment
pulse. Estimated ages ranged
from one to 43 years; fast growth
rates were observed for the first five
years. Minimal sexual dimorphism
was shown to exist between length,
weight, and growth characteristics of
striped trumpeter. Seasonal growth
variability was strong in individuals
up to at least age four, and growth
rates peaked approximately one month
after the observed peak in sea surface
temperature. A modified two-phase
von Bertalanffy growth function was
fitted to the length-at-age data, and
the transition between growth phases
was linked to apparent changes in
physiological and life history traits,
including offshore movement as fish
approach maturity. The two-phase
curve was found to represent the
mean length at age in the data better
than the standard von Bertalanffy
g rowth function. Total mortality
was estimated by using catch curve
analysis based on the standard and
two-phase von Bertalanffy growth
functions, and estimates of natural
mortality were calculated by using
two empirical models, one based on
longevity and the other based on the
parameters L∞ and k from both growth
functions. The interactions between
an inshore gillnet fishery targeting
predominately juveniles and an offshore
hook fishery targeting predominately
adults highlight the need to
use a precautionary approach when
developing harvest strategies.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/300000.html">300000 Agricultural, Veterinary and Environmental Sciences</a><br /><a href="http://eprints.utas.edu.au/view/subjects/300703.html">300000 Agricultural, Veterinary and Environmental Sciences > 300700 Fisheries Sciences > 300703 Aquaculture</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2525</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Scholarly Publications Librarian</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">23 Nov 2007 15:31</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2525;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=2525">item control page</a></p>
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