Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approach
The patterns of allometric growth of the grapsid crab Pachygrapsus marmoratus were investigated with an information-theoretic approach. This approach is beneficial, more robust, and may reveal more information than the classical approaches (e.g. hypothesis testing). No differentiation in allometric...
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Consejo Superior de Investigaciones Científicas
2007-06-01
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doaj-912e27e9321c4406bc8fbde853a970902021-05-05T13:49:42ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342007-06-0171238339410.3989/scimar.2007.71n238317Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approachNikos Prototapas0Stelios Katsanevakis1Maria Thessalou-Legaki2George Verriopoulos3Department of Zoology-Marine Biology, Faculty of Biology, University of AthensDepartment of Zoology-Marine Biology, Faculty of Biology, University of AthensDepartment of Zoology-Marine Biology, Faculty of Biology, University of AthensDepartment of Zoology-Marine Biology, Faculty of Biology, University of AthensThe patterns of allometric growth of the grapsid crab Pachygrapsus marmoratus were investigated with an information-theoretic approach. This approach is beneficial, more robust, and may reveal more information than the classical approaches (e.g. hypothesis testing). No differentiation in allometric growth was detected between right and left chelar propods in either sex. Significant sexual differentiation in the allometric growth of chelar propods, abdominal somites and telson was found. It was shown that the allometry of chelar propodus width may be used to identify puberty in males, as there is a marked breakpoint at a carapace width of ~16.0 mm. For females, puberty was identified by the breakpoint in the allometry of the third and fourth abdominal somites at a carapace width of ~16.5 mm. In many cases (e.g. in chelar propods of males, or in most abdominal somites and the telson in females) the classic allometric equation log Y = log a + b log X has no essential support and non-linear allometric models between the log-transformed morphometric characters have to be used.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/17aicallometrybreakpointcrabgrowthinformation-theory |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nikos Prototapas Stelios Katsanevakis Maria Thessalou-Legaki George Verriopoulos |
spellingShingle |
Nikos Prototapas Stelios Katsanevakis Maria Thessalou-Legaki George Verriopoulos Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approach Scientia Marina aic allometry breakpoint crab growth information-theory |
author_facet |
Nikos Prototapas Stelios Katsanevakis Maria Thessalou-Legaki George Verriopoulos |
author_sort |
Nikos Prototapas |
title |
Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approach |
title_short |
Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approach |
title_full |
Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approach |
title_fullStr |
Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approach |
title_full_unstemmed |
Relative growth of the semi-terrestrial crab Pachygrapsus marmoratus: an information-theory approach |
title_sort |
relative growth of the semi-terrestrial crab pachygrapsus marmoratus: an information-theory approach |
publisher |
Consejo Superior de Investigaciones Científicas |
series |
Scientia Marina |
issn |
0214-8358 1886-8134 |
publishDate |
2007-06-01 |
description |
The patterns of allometric growth of the grapsid crab Pachygrapsus marmoratus were investigated with an information-theoretic approach. This approach is beneficial, more robust, and may reveal more information than the classical approaches (e.g. hypothesis testing). No differentiation in allometric growth was detected between right and left chelar propods in either sex. Significant sexual differentiation in the allometric growth of chelar propods, abdominal somites and telson was found. It was shown that the allometry of chelar propodus width may be used to identify puberty in males, as there is a marked breakpoint at a carapace width of ~16.0 mm. For females, puberty was identified by the breakpoint in the allometry of the third and fourth abdominal somites at a carapace width of ~16.5 mm. In many cases (e.g. in chelar propods of males, or in most abdominal somites and the telson in females) the classic allometric equation log Y = log a + b log X has no essential support and non-linear allometric models between the log-transformed morphometric characters have to be used. |
topic |
aic allometry breakpoint crab growth information-theory |
url |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/17 |
work_keys_str_mv |
AT nikosprototapas relativegrowthofthesemiterrestrialcrabpachygrapsusmarmoratusaninformationtheoryapproach AT stelioskatsanevakis relativegrowthofthesemiterrestrialcrabpachygrapsusmarmoratusaninformationtheoryapproach AT mariathessaloulegaki relativegrowthofthesemiterrestrialcrabpachygrapsusmarmoratusaninformationtheoryapproach AT georgeverriopoulos relativegrowthofthesemiterrestrialcrabpachygrapsusmarmoratusaninformationtheoryapproach |
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1721460964449058816 |