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OCCURRENCE AND EFFECTS OF THE RHIZOCEPHALAN PARASITE DIPLOTHYLACUS SINENSIS (CIRRIPEDIA: RHIZOCEPHALA: THOMSONIIDAE) IN THE SWIMMING CRAB PORTUNUS SANGUINOLENTUS (DECAPODA: PORTUNIDAE) IN HONGHAI BAY, SOUTH CHINA SEA
Yang, CP; Li, HX; Li, L; Yan, Y; yany@scsio.ac.cn
2014
Source PublicationJOURNAL OF CRUSTACEAN BIOLOGY
ISSN0278-0372
Volume34Issue:5Pages:573-580
AbstractA thompsoniid rhizocephalan parasite, Diplothylacus sinensis (Keppen, 1877), was discovered in the semi-open Honghai Bay in the South China Sea, occurring in 26.4% of 1852 (934 males and 918 females) Portunus sanguinolentus (Herbst, 1783) (Decapoda: Portunidae) collected monthly between November 2012, and October 2013. Of the sampled crabs, 243 males and 246 females were infected with externae of D. sinensis or bore attachment scars on the body surface, giving an overall prevalence of infection of 26.0% and 26.8% in male and female crabs, respectively. The infection rate changed monthly with the highest prevalence in December (50.6%) and the lowest in June (1.3%). New externae filled with eggs or embryos were observed throughout the year, which indicates a year-round reproductive cycle, but virgin externae were more commonly present in late spring or early summer. Carapace width and wet weight of infected crabs of both sexes were significantly smaller than those of uninfected crabs. Compared to normal crabs, the pleon of infected females was significantly wider and the first pleopod of parasitized males was shorter. On addition, crabs infected by the rhizocephalan parasite were more susceptible to other epibionts, which included Octolasmis warwickii Gray, 1825 (10.1%), Chelonibia patula (Ranzani, 1818) (6.8%), Obelia spp. (7.2%) and Membranipora membranacea (6.5%) on the carapace surface, and Octolasmis bullata (Aurivillius, 1894) (64.7%) on the gills.
Department[Yang, Chang-Ping ; Li, Heng-Xiang ; Li, Lu ; Yan, Yan] South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China ; [Yang, Chang-Ping] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
KeywordDiplothylacus Sinensis Host/parasite Interaction Portunus Sanguinolentus South China Sea
Subject AreaMarine & Freshwater Biology
Funding OrganizationNational Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482] ; National Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482] ; National Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482] ; National Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482]
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Indexed Bysci
Funding ProjectLMB
Funding OrganizationNational Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482] ; National Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482] ; National Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482] ; National Natural Science Foundation of China [41206133, 41176147]; Natural Science Foundation of Guangdong Province, China [s2012040007482]
WOS IDWOS:000342393000005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10386
Collection中科院海洋生物资源可持续利用重点实验室
Corresponding Authoryany@scsio.ac.cn
Recommended Citation
GB/T 7714
Yang, CP,Li, HX,Li, L,et al. OCCURRENCE AND EFFECTS OF THE RHIZOCEPHALAN PARASITE DIPLOTHYLACUS SINENSIS (CIRRIPEDIA: RHIZOCEPHALA: THOMSONIIDAE) IN THE SWIMMING CRAB PORTUNUS SANGUINOLENTUS (DECAPODA: PORTUNIDAE) IN HONGHAI BAY, SOUTH CHINA SEA[J]. JOURNAL OF CRUSTACEAN BIOLOGY,2014,34(5):573-580.
APA Yang, CP,Li, HX,Li, L,Yan, Y,&yany@scsio.ac.cn.(2014).OCCURRENCE AND EFFECTS OF THE RHIZOCEPHALAN PARASITE DIPLOTHYLACUS SINENSIS (CIRRIPEDIA: RHIZOCEPHALA: THOMSONIIDAE) IN THE SWIMMING CRAB PORTUNUS SANGUINOLENTUS (DECAPODA: PORTUNIDAE) IN HONGHAI BAY, SOUTH CHINA SEA.JOURNAL OF CRUSTACEAN BIOLOGY,34(5),573-580.
MLA Yang, CP,et al."OCCURRENCE AND EFFECTS OF THE RHIZOCEPHALAN PARASITE DIPLOTHYLACUS SINENSIS (CIRRIPEDIA: RHIZOCEPHALA: THOMSONIIDAE) IN THE SWIMMING CRAB PORTUNUS SANGUINOLENTUS (DECAPODA: PORTUNIDAE) IN HONGHAI BAY, SOUTH CHINA SEA".JOURNAL OF CRUSTACEAN BIOLOGY 34.5(2014):573-580.
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