Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae)
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum Biological Sciences |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47430 |
Resumo: | The crab Ucides cordatus is an important feature of mangroves in the North and Northeast of Brazil. In 2002 a large mortality was reported on this species in the Jaguaribe River Estuary. In order to investigate the possible causes specimens were collected monthly between May 2002 and December 2003 at five sites: Fortim (E1), Fortim (E2), Cumbe (E3) Aracati (E4) and Guajiru (E5). The mangrove structure and environmental parameters (salinity, pH, temperature and DO) were also evaluated. Water was collected for suspended solids analysis, BOD and nutrient levels. Salinity decreased in the rainy season, with no significant variation of pH and temperature. Dissolved oxygen levels had a mean of 5.7 mg L-1. Suspended solids increased at site E4, with BOD varying at E1 and E2 during the dry season. The same was observed at sites E1, E2 and E3 during the rainy season. Ammonia levels at E1 and E2 and phosphorus in all seasons, increased with rain events. Four lines of investigation were adopted: biometry, histology, hematology, and bioassay. There was no significant difference between animals in biometrics and histology showed no cellular alterations. However, hematology showed a significant difference between the E1 and E3 sites due to depletion in the number of hemocytes in E1, probably in response to environmental impacts. This can lead to poor immunity, leading to opportunistic pathogen infections such as viruses, bacteria and fungi. The bioassay showing no abnormal behavior or mortality. The structure the of mangrove was developed in all areas, except in E5 which served as a control site, with significant environmental stress with high levels of herbivorous growth (> 50%) and a salinity of around 50 ‰. It is believed that the mortality of the crabs was an occasional occurrence, probably due to toxin production by some fungal organism. |
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Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) Biometric parameters; Crustacea; Histology; BioassayThe crab Ucides cordatus is an important feature of mangroves in the North and Northeast of Brazil. In 2002 a large mortality was reported on this species in the Jaguaribe River Estuary. In order to investigate the possible causes specimens were collected monthly between May 2002 and December 2003 at five sites: Fortim (E1), Fortim (E2), Cumbe (E3) Aracati (E4) and Guajiru (E5). The mangrove structure and environmental parameters (salinity, pH, temperature and DO) were also evaluated. Water was collected for suspended solids analysis, BOD and nutrient levels. Salinity decreased in the rainy season, with no significant variation of pH and temperature. Dissolved oxygen levels had a mean of 5.7 mg L-1. Suspended solids increased at site E4, with BOD varying at E1 and E2 during the dry season. The same was observed at sites E1, E2 and E3 during the rainy season. Ammonia levels at E1 and E2 and phosphorus in all seasons, increased with rain events. Four lines of investigation were adopted: biometry, histology, hematology, and bioassay. There was no significant difference between animals in biometrics and histology showed no cellular alterations. However, hematology showed a significant difference between the E1 and E3 sites due to depletion in the number of hemocytes in E1, probably in response to environmental impacts. This can lead to poor immunity, leading to opportunistic pathogen infections such as viruses, bacteria and fungi. The bioassay showing no abnormal behavior or mortality. The structure the of mangrove was developed in all areas, except in E5 which served as a control site, with significant environmental stress with high levels of herbivorous growth (> 50%) and a salinity of around 50 ‰. It is believed that the mortality of the crabs was an occasional occurrence, probably due to toxin production by some fungal organism.Universidade Estadual De Maringá2020-02-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4743010.4025/actascibiolsci.v42i1.47430Acta Scientiarum. Biological Sciences; Vol 42 (2020): Publicação contínua; e47430Acta Scientiarum. Biological Sciences; v. 42 (2020): Publicação contínua; e474301807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47430/751375149363Copyright (c) 2020 Acta Scientiarum. Biological Scienceshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessValentim-Neto, Pedro AlexandreGesteira, Tereza Cristina Vasconcelos2020-05-05T12:49:05Zoai:periodicos.uem.br/ojs:article/47430Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2020-05-05T12:49:05Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) |
title |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) |
spellingShingle |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) Valentim-Neto, Pedro Alexandre Biometric parameters; Crustacea; Histology; Bioassay |
title_short |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) |
title_full |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) |
title_fullStr |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) |
title_full_unstemmed |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) |
title_sort |
Health State, morphological characterization and biometric parameters in the mangrove crab Ucides cordatus Linnaeus, 1763 (Brachyura: Ocypodidae) |
author |
Valentim-Neto, Pedro Alexandre |
author_facet |
Valentim-Neto, Pedro Alexandre Gesteira, Tereza Cristina Vasconcelos |
author_role |
author |
author2 |
Gesteira, Tereza Cristina Vasconcelos |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Valentim-Neto, Pedro Alexandre Gesteira, Tereza Cristina Vasconcelos |
dc.subject.por.fl_str_mv |
Biometric parameters; Crustacea; Histology; Bioassay |
topic |
Biometric parameters; Crustacea; Histology; Bioassay |
description |
The crab Ucides cordatus is an important feature of mangroves in the North and Northeast of Brazil. In 2002 a large mortality was reported on this species in the Jaguaribe River Estuary. In order to investigate the possible causes specimens were collected monthly between May 2002 and December 2003 at five sites: Fortim (E1), Fortim (E2), Cumbe (E3) Aracati (E4) and Guajiru (E5). The mangrove structure and environmental parameters (salinity, pH, temperature and DO) were also evaluated. Water was collected for suspended solids analysis, BOD and nutrient levels. Salinity decreased in the rainy season, with no significant variation of pH and temperature. Dissolved oxygen levels had a mean of 5.7 mg L-1. Suspended solids increased at site E4, with BOD varying at E1 and E2 during the dry season. The same was observed at sites E1, E2 and E3 during the rainy season. Ammonia levels at E1 and E2 and phosphorus in all seasons, increased with rain events. Four lines of investigation were adopted: biometry, histology, hematology, and bioassay. There was no significant difference between animals in biometrics and histology showed no cellular alterations. However, hematology showed a significant difference between the E1 and E3 sites due to depletion in the number of hemocytes in E1, probably in response to environmental impacts. This can lead to poor immunity, leading to opportunistic pathogen infections such as viruses, bacteria and fungi. The bioassay showing no abnormal behavior or mortality. The structure the of mangrove was developed in all areas, except in E5 which served as a control site, with significant environmental stress with high levels of herbivorous growth (> 50%) and a salinity of around 50 ‰. It is believed that the mortality of the crabs was an occasional occurrence, probably due to toxin production by some fungal organism. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-02-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47430 10.4025/actascibiolsci.v42i1.47430 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47430 |
identifier_str_mv |
10.4025/actascibiolsci.v42i1.47430 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47430/751375149363 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Acta Scientiarum. Biological Sciences https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Acta Scientiarum. Biological Sciences https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Biological Sciences; Vol 42 (2020): Publicação contínua; e47430 Acta Scientiarum. Biological Sciences; v. 42 (2020): Publicação contínua; e47430 1807-863X 1679-9283 reponame:Acta Scientiarum Biological Sciences instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum Biological Sciences |
collection |
Acta Scientiarum Biological Sciences |
repository.name.fl_str_mv |
Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actabiol@uem.br |
_version_ |
1799317397448949760 |