Comparative morphology of Cymothoa spp.(Isopoda, Cymothoidae) from Brazilian fishes, with the description of Cymothoa catarinensis sp. nov. and redescriptions of C. excisa Perty and C. oestrum (Linnaeus)

Vernon, E Thatcher; e, Silva Jayme de Loyola; Glauco, F Jost; José, M Souza-Conceição

doi:10.1590/s0101-81752003000300028

Cited by 21 publications

(36 citation statements)

References 3 publications

(1 reference statement)

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“…Micropogonias furnieri; mouth; marine; Santa Catarina (Thatcher et al 2003b). Cymothoa gerris Schiödte and Meinert, 1884 Eugerres brasilianus; mouth; marine; northeastern coast of Brazil (Thatcher et al 2003b).…”

Section: Cymothoa Excisa Perty 1833mentioning

confidence: 99%

Checklist of Crustacea parasitizing fishes from Brazil

Luque¹,

Vieira²,

Takemoto³

et al. 2013

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Materials and MethodsThe list of parasitic crustaceans of fishes in Brazil was based on extensive search of published records. This bibliographic review of the crustacean species reported from fishes in Brazilian waters was complemented with information from the Zoological Record, Biological Abstracts, Web of Knowledge, Google Scholar, Aquatic Sciences and Fisheries Abstracts, Biological and Agricultural Index Plus and the Scopus. Data were compiled until March, 2013. In the case of parasitic copepods, only information not presented in the checklist of Copepoda parasites of fishes from Brazil by Luque and Tavares (2007) was included. The number of parasitic associations was calculated from the sum of the richness of species of parasites on each host species.The checklist follows the classification and systematic arrangement proposed by Boxshall and Halsey (2004) for Copepoda, and Young (1998) and Martin and Davis (2001) for other crustacean groups.The species of crustaceans are arranged according to taxonomic categories, within which the species are presented in alphabetical order, followed by hosts (specific name), site of infection, habitat, localities and references (between parentheses, in chronological order). In addition, the checklist also includes crustacean species identified only at the genus level and undetermined species. Crustacean names presented in the checklist follow the most recent taxonomic literature, but validity of individual taxa or reliability of their records was not critically examined by the present authors. Host species were arranged in taxonomic and then alphabetical order.The key to identification of the genera of parasitic crustaceans from fishes in Brazil has been produced on the basis of those by Delaney

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Section: Cymothoa Excisa Perty 1833mentioning

confidence: 99%

Checklist of Crustacea parasitizing fishes from Brazil

Luque¹,

Vieira²,

Takemoto³

et al. 2013

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“…Most of the taxonomic descriptions of the cymothoids are based primarily on ovigerous females; the various life cycle stages (excepting perhaps the premanca/manca of few Cymothoa sp.) have not received much attention thus far (Richardson 1905;Sartor and Pires 1988;Thatcher et al 2003Thatcher et al , 2007Trilles and Bariche 2006;Hadfield et al 2011). Keeping these in view, the present paper addresses the question of precise identification of the cymothoid C. frontalis infesting the belonid fish inhabiting the Malabar Coast.…”

Section: Introductionmentioning

confidence: 99%

Cymothoa frontalis, a cymothoid isopod parasitizing the belonid fish Strongylura strongylura from the Malabar Coast (Kerala, India): redescription, description, prevalence and life cycle

Thamban¹,

Kappalli²,

Kottarathil³

et al. 2015

Zool. Stud.

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Background: Cymothoa frontalis Milne Edward, 1840 is a very poorly described cymothoid, notwithstanding the previous redescription of the female. Pertinently, to date, the host of C. frontalis has not been identified with adequate precision. Most of the descriptions of cymothoids carried out hitherto were based primarily on females, but practically ignoring other life cycle stages. The present paper redescribes the female and describes other life cycle stages of the species C. frontalis to get better precision in their identification. Results:The female phase of C. frontalis is redescribed according to type specimens extant in the NMNH, Paris, and also by the data obtained from live specimens collected during the present study. The general morphology and appendages of various life cycle stages of the species are described. Among 80 fish species from 35 families examined, C. frontalis was recovered only from Strongylura strongylura signifying its oligoxenous host specificity, the prevalence and intensity being 68.65% and 1.9, respectively. Each host fish in more than 85% of the population was infested with a pair of C. frontalis, in three combinations, predominantly with male-female pair (70.9%). C. frontalis exhibited strict site specificity attaching to the buccal cavity of the host fish. The study has also identified three major phases (marsupial, free living and infective) in the life cycle of C. frontalis. The zygotic-staged marsupiumites were developed through five sequential ontogenetic stages. The manca released from the marsupium become infective after a brief period of free swimming life. During the infective phase, C. frontalis completes remaining life cycle stages with successive moulting. Further, six successive stages of the ovigerous females have also been identified. Conclusions: The present redescription of the female and the description of transitional, male, juvenile and larvae of C. frontalis facilitate precise identification of the species at any stage of the life cycle. Further, the strict host and site specificities of the parasite, as borne out from the present study, and its high degree of prevalence in the host make C. frontalis as an ideal model organism to study the strategies to be adopted for the management of parasites infesting edible fishes.

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“…The first of these is shown to have short antennae and the second long antennae. THATCHER et al (2003) of the mancas of two species, namely: C. catarinensis Thatcher, Loyola, Jost & Souza-Conceição, 2003, and C. oestrum. The first of these also has short antennae.…”

Section: Discussionmentioning

confidence: 99%

“…THATCHER et al (2003) described a new species from Santa Catarina State and compared it to 6 other species that have been atributed to Brazil. THATCHER & FONSECA (2005) described an additional species from marine fishes of Pernambuco State bringing the total of species to 8.…”

mentioning

confidence: 99%

Cymothoa spinipalpa sp. nov. (Isopoda, Cymothoidae) a buccal cavity parasite of the marine fish, Oligoplites saurus (Bloch & Schneider) (Osteichthyes, Carangidae) of Rio Grande do Norte State, Brazil

et al. 2007

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Cymothoa spinipalpa sp. nov. (Isopoda, Cymothoidae) a buccal cavity parasite of the marine fish, Oligoplites saurus, is described on the basis of eight male specimens and one female. The fish hosts were captured in the coastal waters of Natal, Rio Grande do Norte State, Brazil. In the new species, the anterior margin of the cephalon is doubled ventrally over the bases of the antennae. In this respect, it resembles C. recifea Thatcher & Fonseca, 2005. It differs from that species, however, in being much smaller and having basal carinae on the pereopods 4 to 7 that are small and rounded (not large and pointed). Also, pleopods 2-4 lack the folds and pockets that are present in C. recifea. The new species can be distinguished from all known Cymothoa spp. by the mandibular palps which are entirely covered with small spines in adult males. The mancas of the new species resemble those of Cymothoa oestrum since they have elongate antennae but they are wider and have shorter uropods.

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Comparative morphology of Cymothoa spp.(Isopoda, Cymothoidae) from Brazilian fishes, with the description of Cymothoa catarinensis sp. nov. and redescriptions of C. excisa Perty and C. oestrum (Linnaeus)

Cited by 21 publications

References 3 publications

Checklist of Crustacea parasitizing fishes from Brazil

Checklist of Crustacea parasitizing fishes from Brazil

Cymothoa frontalis, a cymothoid isopod parasitizing the belonid fish Strongylura strongylura from the Malabar Coast (Kerala, India): redescription, description, prevalence and life cycle

Cymothoa spinipalpa sp. nov. (Isopoda, Cymothoidae) a buccal cavity parasite of the marine fish, Oligoplites saurus (Bloch & Schneider) (Osteichthyes, Carangidae) of Rio Grande do Norte State, Brazil

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