Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina

Soft bottom intertidals of the Atlantic SW are dominated by the semi-terrestrial crab Neohelice granulata and the grapsid crab Cyrtograpsus angulatus. They are similar in size but C. angulatus is mainly a subtidal species, while N. granulata inhabits the intertidal zones, thus the two species overla...

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Detalles Bibliográficos
Autores principales: Casariego, A.M., Merlo, M., Etchegoin, J.
Formato: JOUR
Materias:
crabs
estuaries
Parasites
Cyrtograpsus angulatus
Decapoda (Crustacea)
Grapsidae
Maritrema bonaerensis
Microphallidae
Microphallus (trematode)
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00253154_v96_n3_p633_Casariego
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00253154_v96_n3_p633_Casariego
record_format dspace
spelling todo:paper_00253154_v96_n3_p633_Casariego2023-10-03T14:35:48Z Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina Casariego, A.M. Merlo, M. Etchegoin, J. crabs estuaries Parasites Cyrtograpsus angulatus Decapoda (Crustacea) Grapsidae Maritrema bonaerensis Microphallidae Microphallus (trematode) Soft bottom intertidals of the Atlantic SW are dominated by the semi-terrestrial crab Neohelice granulata and the grapsid crab Cyrtograpsus angulatus. They are similar in size but C. angulatus is mainly a subtidal species, while N. granulata inhabits the intertidal zones, thus the two species overlap only during high tides in this area. Since these distribution differences between crab species across the Mar Chiquita Coastal lagoon may affect digenean infection success, the objective of this work is to describe the spatial differences in parasite infection levels and their selectivity on the host. To determine possible spatial differences in parasitism levels between sites and crab species across the lagoon, three areas dominated by N. granulata were selected and adult crabs of N. granulata and C. angulatus were collected. Both crab species harboured metacercariae of the digeneans Microphallus szidati and Maritrema bonaerensis (Microphallidae), and cystacanths of the acanthocephalan Profilicollis chasmagnathi (Profilicollidae). Digenean species showed preferences between the two crabs. Maritrema bonaerensis mean intensity was higher in N. granulata than in C. angulatus, while the opposite trend was found for M. szidati and could indicate some level of specificity. These results, nevertheless, depended on the study site. For P. chasmagnathi the highest values of mean intensity depended more on the site than on the crab species. The values found here, compared with previous works from both crab species, suggest that besides the spatial heterogeneity, interspecific competition between parasites could explain the differences observed. © 2015 Marine Biological Association of the United Kingdom. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00253154_v96_n3_p633_Casariego
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic crabs
estuaries
Parasites
Cyrtograpsus angulatus
Decapoda (Crustacea)
Grapsidae
Maritrema bonaerensis
Microphallidae
Microphallus (trematode)
spellingShingle crabs
estuaries
Parasites
Cyrtograpsus angulatus
Decapoda (Crustacea)
Grapsidae
Maritrema bonaerensis
Microphallidae
Microphallus (trematode)
Casariego, A.M.
Merlo, M.
Etchegoin, J.
Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina
topic_facet crabs
estuaries
Parasites
Cyrtograpsus angulatus
Decapoda (Crustacea)
Grapsidae
Maritrema bonaerensis
Microphallidae
Microphallus (trematode)
description Soft bottom intertidals of the Atlantic SW are dominated by the semi-terrestrial crab Neohelice granulata and the grapsid crab Cyrtograpsus angulatus. They are similar in size but C. angulatus is mainly a subtidal species, while N. granulata inhabits the intertidal zones, thus the two species overlap only during high tides in this area. Since these distribution differences between crab species across the Mar Chiquita Coastal lagoon may affect digenean infection success, the objective of this work is to describe the spatial differences in parasite infection levels and their selectivity on the host. To determine possible spatial differences in parasitism levels between sites and crab species across the lagoon, three areas dominated by N. granulata were selected and adult crabs of N. granulata and C. angulatus were collected. Both crab species harboured metacercariae of the digeneans Microphallus szidati and Maritrema bonaerensis (Microphallidae), and cystacanths of the acanthocephalan Profilicollis chasmagnathi (Profilicollidae). Digenean species showed preferences between the two crabs. Maritrema bonaerensis mean intensity was higher in N. granulata than in C. angulatus, while the opposite trend was found for M. szidati and could indicate some level of specificity. These results, nevertheless, depended on the study site. For P. chasmagnathi the highest values of mean intensity depended more on the site than on the crab species. The values found here, compared with previous works from both crab species, suggest that besides the spatial heterogeneity, interspecific competition between parasites could explain the differences observed. © 2015 Marine Biological Association of the United Kingdom.
format JOUR
author Casariego, A.M.
Merlo, M.
Etchegoin, J.
author_facet Casariego, A.M.
Merlo, M.
Etchegoin, J.
author_sort Casariego, A.M.
title Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina
title_short Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina
title_full Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina
title_fullStr Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina
title_full_unstemmed Spatial variability of larval parasites harboured by two crab species in an estuarine environment in Argentina
title_sort spatial variability of larval parasites harboured by two crab species in an estuarine environment in argentina
url http://hdl.handle.net/20.500.12110/paper_00253154_v96_n3_p633_Casariego
work_keys_str_mv AT casariegoam spatialvariabilityoflarvalparasitesharbouredbytwocrabspeciesinanestuarineenvironmentinargentina
AT merlom spatialvariabilityoflarvalparasitesharbouredbytwocrabspeciesinanestuarineenvironmentinargentina
AT etchegoinj spatialvariabilityoflarvalparasitesharbouredbytwocrabspeciesinanestuarineenvironmentinargentina
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