Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review
Two brachyurans of the varunid genus Hemigrapsus from the northwestern Pacific Ocean have invaded coastal regions of the north Atlantic – Hemigrapsus takanoi (sibling species of Hemigrapsus penicillatus) and Hemigrapsus sanguineus in Europe and the latter in the USA. Parasites are known from these c...
Published in: | Journal of Natural History |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Taylor & Francis
2011
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/33387/ https://oceanrep.geomar.de/id/eprint/33387/1/McDermott.pdf https://doi.org/10.1080/00222933.2011.596636 |
id |
ftoceanrep:oai:oceanrep.geomar.de:33387 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:33387 2023-05-15T13:46:46+02:00 Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review McDermott, John J. 2011 text https://oceanrep.geomar.de/id/eprint/33387/ https://oceanrep.geomar.de/id/eprint/33387/1/McDermott.pdf https://doi.org/10.1080/00222933.2011.596636 en eng Taylor & Francis https://oceanrep.geomar.de/id/eprint/33387/1/McDermott.pdf McDermott, J. J. (2011) Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review. Journal of Natural History, 45 (39-40). pp. 2419-2441. DOI 10.1080/00222933.2011.596636 <https://doi.org/10.1080/00222933.2011.596636>. doi:10.1080/00222933.2011.596636 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2011 ftoceanrep https://doi.org/10.1080/00222933.2011.596636 2023-04-07T15:26:43Z Two brachyurans of the varunid genus Hemigrapsus from the northwestern Pacific Ocean have invaded coastal regions of the north Atlantic – Hemigrapsus takanoi (sibling species of Hemigrapsus penicillatus) and Hemigrapsus sanguineus in Europe and the latter in the USA. Parasites are known from these crabs in their native habitats, but except for an undescribed larval nematode, none has been found in those examined from their new locations. These parasites include metacercariae of eight species of microphallid trematode, the rhizocephalan barnacles Polyascus polygenea, Sacculina nigra and Sacculina senta, and the obligate gut-inhabiting mesomycetozoan Enteromyces callianassae (potential parasite). The following have been identified in four of the other eight Pacific crabs within the genus (Hemigrapsus nudus and Hemigrapsus oregonensis, northern hemisphere; Hemigrapsus crenulatus and Hemigrapsus sexdentatus, southern hemisphere), none of which have been geographically displaced: metacercariae of two microphallid trematodes; cystacanths of three acanthocephalans Profilicollis antarcticus, Profilicollis botulus and Profilicollis novaezelandensis; larval nematode Ascarophis sp.; nematomorph Nectonema zealandica; entoniscid isopod Portunion conformis; mesomycetozoan Taeniella carcini; and nemertean egg predator Carcinonemertes epialti. The likelihood of the displaced species of shore crabs being rejoined with their native parasites or their susceptibility to becoming infected by similar parasites in their new locations is discussed. In future global displacements of parasitized Hemigrapsus species it is possible that their most serious parasites, rhizocephalans and entoniscid isopods, may infect previously uninfected species. For example, the two eastern Pacific species of Hemigrapsus (H. nudus and H. oregonensis) may be vulnerable to the rhizocephalans and may in turn be a source of entoniscids transported elsewhere. Article in Journal/Newspaper Antarc* antarcticus North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Pacific Journal of Natural History 45 39-40 2419 2441 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Two brachyurans of the varunid genus Hemigrapsus from the northwestern Pacific Ocean have invaded coastal regions of the north Atlantic – Hemigrapsus takanoi (sibling species of Hemigrapsus penicillatus) and Hemigrapsus sanguineus in Europe and the latter in the USA. Parasites are known from these crabs in their native habitats, but except for an undescribed larval nematode, none has been found in those examined from their new locations. These parasites include metacercariae of eight species of microphallid trematode, the rhizocephalan barnacles Polyascus polygenea, Sacculina nigra and Sacculina senta, and the obligate gut-inhabiting mesomycetozoan Enteromyces callianassae (potential parasite). The following have been identified in four of the other eight Pacific crabs within the genus (Hemigrapsus nudus and Hemigrapsus oregonensis, northern hemisphere; Hemigrapsus crenulatus and Hemigrapsus sexdentatus, southern hemisphere), none of which have been geographically displaced: metacercariae of two microphallid trematodes; cystacanths of three acanthocephalans Profilicollis antarcticus, Profilicollis botulus and Profilicollis novaezelandensis; larval nematode Ascarophis sp.; nematomorph Nectonema zealandica; entoniscid isopod Portunion conformis; mesomycetozoan Taeniella carcini; and nemertean egg predator Carcinonemertes epialti. The likelihood of the displaced species of shore crabs being rejoined with their native parasites or their susceptibility to becoming infected by similar parasites in their new locations is discussed. In future global displacements of parasitized Hemigrapsus species it is possible that their most serious parasites, rhizocephalans and entoniscid isopods, may infect previously uninfected species. For example, the two eastern Pacific species of Hemigrapsus (H. nudus and H. oregonensis) may be vulnerable to the rhizocephalans and may in turn be a source of entoniscids transported elsewhere. |
format |
Article in Journal/Newspaper |
author |
McDermott, John J. |
spellingShingle |
McDermott, John J. Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review |
author_facet |
McDermott, John J. |
author_sort |
McDermott, John J. |
title |
Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review |
title_short |
Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review |
title_full |
Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review |
title_fullStr |
Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review |
title_full_unstemmed |
Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review |
title_sort |
parasites of shore crabs in the genushemigrapsus(decapoda: brachyura: varunidae) and their status in crabs geographically displaced: a review |
publisher |
Taylor & Francis |
publishDate |
2011 |
url |
https://oceanrep.geomar.de/id/eprint/33387/ https://oceanrep.geomar.de/id/eprint/33387/1/McDermott.pdf https://doi.org/10.1080/00222933.2011.596636 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Antarc* antarcticus North Atlantic |
genre_facet |
Antarc* antarcticus North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/33387/1/McDermott.pdf McDermott, J. J. (2011) Parasites of shore crabs in the genusHemigrapsus(Decapoda: Brachyura: Varunidae) and their status in crabs geographically displaced: a review. Journal of Natural History, 45 (39-40). pp. 2419-2441. DOI 10.1080/00222933.2011.596636 <https://doi.org/10.1080/00222933.2011.596636>. doi:10.1080/00222933.2011.596636 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1080/00222933.2011.596636 |
container_title |
Journal of Natural History |
container_volume |
45 |
container_issue |
39-40 |
container_start_page |
2419 |
op_container_end_page |
2441 |
_version_ |
1766245185067417600 |