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Article: On the identities of three common shallow-water swimming crabs Portunus hastatoides Fabricius, 1798, P. dayawanensis Chen, 1986 and P. pseudohastatoides Yang & Tang, 2006 (Crustacea: Decapoda: Portunidae): Essentials for benthic ecological monitoring and biodiversity studies

TitleOn the identities of three common shallow-water swimming crabs Portunus hastatoides Fabricius, 1798, P. dayawanensis Chen, 1986 and P. pseudohastatoides Yang & Tang, 2006 (Crustacea: Decapoda: Portunidae): Essentials for benthic ecological monitoring and biodiversity studies
Authors
KeywordsBenthic ecological monitoring
Biodiversity survey
Morphology
Portunus hastatoides
Swimming crab
Issue Date2010
PublisherAcademia Sinica, Institute of Zoology.
Citation
Zoological Studies, 2010, v. 49 n. 5, p. 669-680 How to Cite?
AbstractThe portunid crab Portunus hastatoides Fabricius, 1798, is a widely distributed common deposit feeder in sandy and muddy subtidal ecosystems in Indo-Pacific waters and has been frequently used as an indicator species in ecological monitoring studies. The identifcation of P. hastatoides in many previous monitoring studies was somewhat ambiguous and likely confused by the coexistence of other morphologically similar species (i.e., P. dayawanensis Chen, 1986, and P. pseudohastatoides Yang and Tang, 2006), which were often misidentifed as P. hastatoides. Correct species identification is crucial to generate accurate results from ecological monitoring and biodiversity surveys. In this paper, we redescribe the diagnostic features of these 3 morphologically similar species, P. hastatoides (but see below), P. dayawanensis, and P. pseudohastatoides in Hong Kong and Taiwanese waters and provide a refned species identifcation guide for benthic ecologists and environmental protection authorities. In the present study, we also found that P. hastatoides in Hong Kong and Taiwan morphologically differed from one of the types of P. hastatoides (from the Indian Ocean), suggesting the presence of a cryptic species complex. Before any extensive revisions are made on the group, we continue to refer to the Hong Kong and Taiwanese populations as P. hastatoides. Crab specimens were trawled from marine environments within the Taiwan Strait where these 3 Portunus species are common. Key features of each of these species were identified; these included the morphology of the carapace frontal teeth and male 1st pleopod.
Persistent Identifierhttp://hdl.handle.net/10722/130032
ISSN
2015 Impact Factor: 0.885
2015 SCImago Journal Rankings: 0.552

 

DC FieldValueLanguage
dc.contributor.authorWong, KJHen_US
dc.contributor.authorLeung, KMYen_US
dc.contributor.authorChan, BKKen_US
dc.date.accessioned2010-12-23T08:45:43Z-
dc.date.available2010-12-23T08:45:43Z-
dc.date.issued2010en_US
dc.identifier.citationZoological Studies, 2010, v. 49 n. 5, p. 669-680en_US
dc.identifier.issn1021-5506-
dc.identifier.urihttp://hdl.handle.net/10722/130032-
dc.description.abstractThe portunid crab Portunus hastatoides Fabricius, 1798, is a widely distributed common deposit feeder in sandy and muddy subtidal ecosystems in Indo-Pacific waters and has been frequently used as an indicator species in ecological monitoring studies. The identifcation of P. hastatoides in many previous monitoring studies was somewhat ambiguous and likely confused by the coexistence of other morphologically similar species (i.e., P. dayawanensis Chen, 1986, and P. pseudohastatoides Yang and Tang, 2006), which were often misidentifed as P. hastatoides. Correct species identification is crucial to generate accurate results from ecological monitoring and biodiversity surveys. In this paper, we redescribe the diagnostic features of these 3 morphologically similar species, P. hastatoides (but see below), P. dayawanensis, and P. pseudohastatoides in Hong Kong and Taiwanese waters and provide a refned species identifcation guide for benthic ecologists and environmental protection authorities. In the present study, we also found that P. hastatoides in Hong Kong and Taiwan morphologically differed from one of the types of P. hastatoides (from the Indian Ocean), suggesting the presence of a cryptic species complex. Before any extensive revisions are made on the group, we continue to refer to the Hong Kong and Taiwanese populations as P. hastatoides. Crab specimens were trawled from marine environments within the Taiwan Strait where these 3 Portunus species are common. Key features of each of these species were identified; these included the morphology of the carapace frontal teeth and male 1st pleopod.-
dc.languageengen_US
dc.publisherAcademia Sinica, Institute of Zoology.-
dc.relation.ispartofZoological Studiesen_US
dc.subjectBenthic ecological monitoring-
dc.subjectBiodiversity survey-
dc.subjectMorphology-
dc.subjectPortunus hastatoides-
dc.subjectSwimming crab-
dc.titleOn the identities of three common shallow-water swimming crabs Portunus hastatoides Fabricius, 1798, P. dayawanensis Chen, 1986 and P. pseudohastatoides Yang & Tang, 2006 (Crustacea: Decapoda: Portunidae): Essentials for benthic ecological monitoring and biodiversity studiesen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1021-5506&volume=49&issue=5&spage=669&epage=680&date=2010&atitle=On+the+identities+of+three+common+shallow-water+swimming+crabs+Portunus+hastatoides+Fabricius,+1798,+P.+dayawanensis+Chen,+1986+and+P.+pseudohastatoides+Yang+and+Tang,+2006+(Crustacea:+Decapoda:+Portunidae):+Essentials+for+benthic+ecological+monitoring+and+biodiversity+studies-
dc.identifier.emailLeung, KMY: kmyleung@hkucc.hku.hken_US
dc.identifier.authorityLeung, KMY=rp00733en_US
dc.identifier.hkuros178045en_US
dc.identifier.volume49en_US
dc.identifier.issue5-
dc.identifier.spage669en_US
dc.identifier.epage680en_US

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