Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura)
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.11646/zootaxa.5196.4.6 http://hdl.handle.net/11449/247872 |
Resumo: | The morphology of juveniles of Mithraculus forceps A. Milne-Edwards, 1875, raised in the laboratory, is described. The larvae were obtained from ovigerous females collected in the wild, maintained in the rearing system for culture of crabs (400 L). A total of 229 larvae (zoea I), from 7 females were distributed in lots of 20 larvae kept in glass flasks (500 ml), with seawater circulation and temperature and salinity constants, which were checked daily for molts or deaths. After the larvae reached the juvenile stage, exuviae and dead specimens were deposited in a scientific collection. We analyzed the external morphology (N = 10 ind.) of each size class (total = 8). We determined the number of size classes, based on carapace width CW vs. carapace length CL (mm) and its dispersion points, in which we can observe non-hierarchical groupings with no size classes overlapping. We analyzed the relative growth of the juveniles using the technique “Standard Major Axis’’ (Type II regression). The relationships CW vs. CL and CW vs. AW showed negative allometry (b < 1; p < 0.05). The relationships CW vs. CPH and CW vs. CPL are isometric (b = 1; p > 0.05). The most remarkable morphological characters of the juveniles (first size class) are the following: spines at the anterior margin of the carapace, inner marginal teeth in the propodus and dactylus of the chelipeds, number of articles in the antennular endopod and the maxillular endopod, absence of setae on the maxillar endopod, and absence of rudimentary pleopods. |
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Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura)crabsculturedevelopmentjuvenilesMithracidaeThe morphology of juveniles of Mithraculus forceps A. Milne-Edwards, 1875, raised in the laboratory, is described. The larvae were obtained from ovigerous females collected in the wild, maintained in the rearing system for culture of crabs (400 L). A total of 229 larvae (zoea I), from 7 females were distributed in lots of 20 larvae kept in glass flasks (500 ml), with seawater circulation and temperature and salinity constants, which were checked daily for molts or deaths. After the larvae reached the juvenile stage, exuviae and dead specimens were deposited in a scientific collection. We analyzed the external morphology (N = 10 ind.) of each size class (total = 8). We determined the number of size classes, based on carapace width CW vs. carapace length CL (mm) and its dispersion points, in which we can observe non-hierarchical groupings with no size classes overlapping. We analyzed the relative growth of the juveniles using the technique “Standard Major Axis’’ (Type II regression). The relationships CW vs. CL and CW vs. AW showed negative allometry (b < 1; p < 0.05). The relationships CW vs. CPH and CW vs. CPL are isometric (b = 1; p > 0.05). The most remarkable morphological characters of the juveniles (first size class) are the following: spines at the anterior margin of the carapace, inner marginal teeth in the propodus and dactylus of the chelipeds, number of articles in the antennular endopod and the maxillular endopod, absence of setae on the maxillar endopod, and absence of rudimentary pleopods.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Loma Linda UniversityConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)NEBECC Study Group on Crustacean Biology Ecology and Culture Master Science Program of Zoology Institute of Biosciences University of the State of São Paulo (UNESP), Campus of Botucatu, State of São PauloFederal Institute of Education Science and Technology of São Paulo (IFSP), Campus of Avaré, State of São PauloNEBECC Study Group on Crustacean Biology Ecology and Culture Master Science Program of Zoology Institute of Biosciences University of the State of São Paulo (UNESP), Campus of Botucatu, State of São PauloCNPq: #481435/2011-5CNPq: #486337/2013-8Universidade Estadual Paulista (UNESP)Science and Technology of São Paulo (IFSP)Galiotti, Lucas Lopes [UNESP]Antunes, Mariana [UNESP]Bolla, Eduardo A. [UNESP]Negreiros-Fransozo, Maria Lucia [UNESP]2023-07-29T13:28:12Z2023-07-29T13:28:12Z2022-10-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article567-587http://dx.doi.org/10.11646/zootaxa.5196.4.6Zootaxa, v. 5196, n. 4, p. 567-587, 2022.1175-53341175-5326http://hdl.handle.net/11449/24787210.11646/zootaxa.5196.4.62-s2.0-85141792163Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengZootaxainfo:eu-repo/semantics/openAccess2023-07-29T13:28:12Zoai:repositorio.unesp.br:11449/247872Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:38:17.966688Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) |
title |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) |
spellingShingle |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) Galiotti, Lucas Lopes [UNESP] crabs culture development juveniles Mithracidae |
title_short |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) |
title_full |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) |
title_fullStr |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) |
title_full_unstemmed |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) |
title_sort |
Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura) |
author |
Galiotti, Lucas Lopes [UNESP] |
author_facet |
Galiotti, Lucas Lopes [UNESP] Antunes, Mariana [UNESP] Bolla, Eduardo A. [UNESP] Negreiros-Fransozo, Maria Lucia [UNESP] |
author_role |
author |
author2 |
Antunes, Mariana [UNESP] Bolla, Eduardo A. [UNESP] Negreiros-Fransozo, Maria Lucia [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Science and Technology of São Paulo (IFSP) |
dc.contributor.author.fl_str_mv |
Galiotti, Lucas Lopes [UNESP] Antunes, Mariana [UNESP] Bolla, Eduardo A. [UNESP] Negreiros-Fransozo, Maria Lucia [UNESP] |
dc.subject.por.fl_str_mv |
crabs culture development juveniles Mithracidae |
topic |
crabs culture development juveniles Mithracidae |
description |
The morphology of juveniles of Mithraculus forceps A. Milne-Edwards, 1875, raised in the laboratory, is described. The larvae were obtained from ovigerous females collected in the wild, maintained in the rearing system for culture of crabs (400 L). A total of 229 larvae (zoea I), from 7 females were distributed in lots of 20 larvae kept in glass flasks (500 ml), with seawater circulation and temperature and salinity constants, which were checked daily for molts or deaths. After the larvae reached the juvenile stage, exuviae and dead specimens were deposited in a scientific collection. We analyzed the external morphology (N = 10 ind.) of each size class (total = 8). We determined the number of size classes, based on carapace width CW vs. carapace length CL (mm) and its dispersion points, in which we can observe non-hierarchical groupings with no size classes overlapping. We analyzed the relative growth of the juveniles using the technique “Standard Major Axis’’ (Type II regression). The relationships CW vs. CL and CW vs. AW showed negative allometry (b < 1; p < 0.05). The relationships CW vs. CPH and CW vs. CPL are isometric (b = 1; p > 0.05). The most remarkable morphological characters of the juveniles (first size class) are the following: spines at the anterior margin of the carapace, inner marginal teeth in the propodus and dactylus of the chelipeds, number of articles in the antennular endopod and the maxillular endopod, absence of setae on the maxillar endopod, and absence of rudimentary pleopods. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-10-21 2023-07-29T13:28:12Z 2023-07-29T13:28:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.11646/zootaxa.5196.4.6 Zootaxa, v. 5196, n. 4, p. 567-587, 2022. 1175-5334 1175-5326 http://hdl.handle.net/11449/247872 10.11646/zootaxa.5196.4.6 2-s2.0-85141792163 |
url |
http://dx.doi.org/10.11646/zootaxa.5196.4.6 http://hdl.handle.net/11449/247872 |
identifier_str_mv |
Zootaxa, v. 5196, n. 4, p. 567-587, 2022. 1175-5334 1175-5326 10.11646/zootaxa.5196.4.6 2-s2.0-85141792163 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Zootaxa |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
567-587 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129230366572544 |