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How seasonal temperature variations may influence the structure of annual squid populations

How seasonal temperature variations may influence the structure of annual squid populations Previous laboratory studies have established that temperature is highly influential in affecting both the growth and life span of Cephalopoda. A major unresolved question is how such sensitivity to environmental factors may determine population structure. Extending a hypothesis first advanced by Forsythe (1993, in: Recent Advances in Fisheries Biology (T. Okutani, R. K. O'Dor, & T. Kubdera, eds.), Tokyo, Tokai University Press), we formulate a simple individual-level model which incorporates a two-stage growth response for squid hatchlings exposed to continuous seasonal fluctuations of temperature. We show that in seasonally fluctuating temperatures such a growth ‘duality’ can directly affect the size distribution of squid over the year and we demonstrate how in seasonally warming waters this mechanism may lead to younger individuals surpassing the size of older individuals. By postulating that development status can be inferred directly from size, we go on to propose a circle-map model of the whole squid life cycle. Numerical investigations into the iterative dynamics support the hypothesis that the progeny from such a population can rapidly separate to a low number of tightly synchronized cohorts within a few generations. Key words Cephalopoda squid growth maturation life cycle synchrony seasonal temperature fluctuations © 1998 Oxford University Press « Previous | Next Article » Table of Contents This Article Math Med Biol (1998) 15 (2): 187-209. doi: 10.1093/imammb/15.2.187 » Abstract Free Full Text (PDF) Free Classifications Article Services Article metrics Alert me when cited Alert me if corrected Find similar articles Similar articles in Web of Science Add to my archive Download citation Request Permissions Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Scopus Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by GRIST, E. P. M. Articles by CLERS, S. D. Search for related content PubMed Articles by GRIST, E. P. M. Articles by CLERS, S. D. Related Content Load related web page information Share Email this article CiteULike Delicious Facebook Google+ Mendeley Twitter What's this? Search this journal: Advanced » Current Issue September 2015 32 (3) Alert me to new issues The Journal About this journal Publishers' Books for Review Rights & Permissions Dispatch date of the next issue Conflict of Interest Policy We are mobile – find out more This journal is a member of the Committee on Publication Ethics (COPE) Journals Career Network Published on behalf of The Institute of Mathematics and its Applications Impact factor: 1.658 5-Yr impact factor: 2.045 Editors Professor Oliver E. Jensen Professor John R. King Professor James P. Keener View full editorial board For Authors Instructions to authors Author Self Archiving Policy Submit now! Open access options for authors - visit Oxford Open This journal enables compliance with the NIH Public Access Policy Alerting Services Email table of contents Email Advance Access CiteTrack XML RSS feed Corporate Services Advertising sales Reprints Supplements var taxonomies = ("SCI01480", "SCI01530"); Most Most Read A new relation between prevalence and incidence of a chronic disease Computer Simulation of Sitka Spruce: Spatial Branching Models for Canopy Growth and Root Structure A multiscale analysis of nutrient transport and biological tissue growth in vitro Effective equations for anisotropic glioma spread with proliferation: a multiscale approach and comparisons with previous settings Modelling the interaction between the host immune response, bacterial dynamics and inflammatory damage in comparison with immunomodulation and vaccination experiments » View all Most Read articles Most Cited An Age-Structured Model of Pre- and Post-Vaccination Measles Transmission A Preliminary Study of the Transmission Dynamics of the Human Immunodeficiency Virus (HIV), the Causative Agent of AIDS Estimating parameters in stochastic compartmental models using Markov chain methods An analysis of B cell selection mechanisms in germinal centers A hybrid mathematical model of solid tumour invasion: the importance of cell adhesion » View all Most Cited articles Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. 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How seasonal temperature variations may influence the structure of annual squid populations

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Publisher
Oxford University Press
Copyright
Copyright © 2015 Institute of Mathematics and its Applications
ISSN
1477-8599
eISSN
1477-8602
DOI
10.1093/imammb/15.2.187
Publisher site
See Article on Publisher Site

Abstract

Previous laboratory studies have established that temperature is highly influential in affecting both the growth and life span of Cephalopoda. A major unresolved question is how such sensitivity to environmental factors may determine population structure. Extending a hypothesis first advanced by Forsythe (1993, in: Recent Advances in Fisheries Biology (T. Okutani, R. K. O'Dor, & T. Kubdera, eds.), Tokyo, Tokai University Press), we formulate a simple individual-level model which incorporates a two-stage growth response for squid hatchlings exposed to continuous seasonal fluctuations of temperature. We show that in seasonally fluctuating temperatures such a growth ‘duality’ can directly affect the size distribution of squid over the year and we demonstrate how in seasonally warming waters this mechanism may lead to younger individuals surpassing the size of older individuals. By postulating that development status can be inferred directly from size, we go on to propose a circle-map model of the whole squid life cycle. Numerical investigations into the iterative dynamics support the hypothesis that the progeny from such a population can rapidly separate to a low number of tightly synchronized cohorts within a few generations. Key words Cephalopoda squid growth maturation life cycle synchrony seasonal temperature fluctuations © 1998 Oxford University Press « Previous | Next Article » Table of Contents This Article Math Med Biol (1998) 15 (2): 187-209. doi: 10.1093/imammb/15.2.187 » Abstract Free Full Text (PDF) Free Classifications Article Services Article metrics Alert me when cited Alert me if corrected Find similar articles Similar articles in Web of Science Add to my archive Download citation Request Permissions Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Scopus Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by GRIST, E. P. M. Articles by CLERS, S. D. Search for related content PubMed Articles by GRIST, E. P. M. Articles by CLERS, S. D. Related Content Load related web page information Share Email this article CiteULike Delicious Facebook Google+ Mendeley Twitter What's this? Search this journal: Advanced » Current Issue September 2015 32 (3) Alert me to new issues The Journal About this journal Publishers' Books for Review Rights & Permissions Dispatch date of the next issue Conflict of Interest Policy We are mobile – find out more This journal is a member of the Committee on Publication Ethics (COPE) Journals Career Network Published on behalf of The Institute of Mathematics and its Applications Impact factor: 1.658 5-Yr impact factor: 2.045 Editors Professor Oliver E. Jensen Professor John R. King Professor James P. Keener View full editorial board For Authors Instructions to authors Author Self Archiving Policy Submit now! Open access options for authors - visit Oxford Open This journal enables compliance with the NIH Public Access Policy Alerting Services Email table of contents Email Advance Access CiteTrack XML RSS feed Corporate Services Advertising sales Reprints Supplements var taxonomies = ("SCI01480", "SCI01530"); Most Most Read A new relation between prevalence and incidence of a chronic disease Computer Simulation of Sitka Spruce: Spatial Branching Models for Canopy Growth and Root Structure A multiscale analysis of nutrient transport and biological tissue growth in vitro Effective equations for anisotropic glioma spread with proliferation: a multiscale approach and comparisons with previous settings Modelling the interaction between the host immune response, bacterial dynamics and inflammatory damage in comparison with immunomodulation and vaccination experiments » View all Most Read articles Most Cited An Age-Structured Model of Pre- and Post-Vaccination Measles Transmission A Preliminary Study of the Transmission Dynamics of the Human Immunodeficiency Virus (HIV), the Causative Agent of AIDS Estimating parameters in stochastic compartmental models using Markov chain methods An analysis of B cell selection mechanisms in germinal centers A hybrid mathematical model of solid tumour invasion: the importance of cell adhesion » View all Most Cited articles Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department. Online ISSN 1477-8602 - Print ISSN 1477-8599 Copyright © 2015 Institute of Mathematics and its Applications Oxford Journals Oxford University Press Site Map Privacy Policy Cookie Policy Legal Notices Frequently Asked Questions Other Oxford University Press sites: Oxford University Press Oxford Journals China Oxford Journals Japan Academic & Professional books Children's & Schools Books Dictionaries & Reference Dictionary of National Biography Digital Reference English Language Teaching Higher Education Textbooks International Education Unit Law Medicine Music Online Products & Publishing Oxford Bibliographies Online Oxford Dictionaries Online Oxford English Dictionary Oxford Language Dictionaries Online Oxford Scholarship Online Reference Rights and Permissions Resources for Retailers & Wholesalers Resources for the Healthcare Industry Very Short Introductions World's Classics function fnc_onDomLoaded() { var query_context = getQueryContext(); PF_initOIUnderbar(query_context,":QS:default","","JRN"); PF_insertOIUnderbar(0); }; if (window.addEventListener) { window.addEventListener('load', fnc_onDomLoaded, false); } else if (window.attachEvent) { window.attachEvent('onload', fnc_onDomLoaded); } var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); try { var pageTracker = _gat._getTracker("UA-189672-16"); pageTracker._setDomainName(".oxfordjournals.org"); pageTracker._trackPageview(); } catch(err) {}

Journal

Mathematical Medicine and BiologyOxford University Press

Published: Jun 1, 1998

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