A revision of the family Dissonidae Kurtz, 1924 (Copepoda: Siphonostomatoida)

Boxshall, Geoff A.; Lin, Ching‐Long; Ho, Ju‐Shey; Ohtsuka, Susumu; Maran, Balu Alagar Venmathi; Justine, Jean‐Lou

doi:10.1007/s11230-008-9132-z

Cited by 15 publications

(10 citation statements)

References 13 publications

(28 reference statements)

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“…Authors involved in the description and combination of taxa for Isopoda: [28,29,32,167,168]; for Copepoda: [36,37,155,169-172]; for Monopisthocotylea: [45,49,66,67,156,173-175]; for Digenea: [71-74,76,77,79,84,86,87,89,97,176-180]; for Trypanorhyncha: [99,181-188]; for Nematoda: [24,157-161,189,190]. …”

Section: Discussionmentioning

confidence: 99%

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An annotated list of fish parasites (Isopoda, Copepoda, Monogenea, Digenea, Cestoda, Nematoda) collected from Snappers and Bream (Lutjanidae, Nemipteridae, Caesionidae) in New Caledonia confirms high parasite biodiversity on coral reef fish

et al. 2012

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BackgroundCoral reefs are areas of maximum biodiversity, but the parasites of coral reef fishes, and especially their species richness, are not well known. Over an 8-year period, parasites were collected from 24 species of Lutjanidae, Nemipteridae and Caesionidae off New Caledonia, South Pacific.ResultsHost-parasite and parasite-host lists are provided, with a total of 207 host-parasite combinations and 58 parasite species identified at the species level, with 27 new host records. Results are presented for isopods, copepods, monogeneans, digeneans, cestodes and nematodes. When results are restricted to well-sampled reef fish species (sample size > 30), the number of host-parasite combinations is 20–25 per fish species, and the number of parasites identified at the species level is 9–13 per fish species. Lutjanids include reef-associated fish and deeper sea fish from the outer slopes of the coral reef: fish from both milieus were compared. Surprisingly, parasite biodiversity was higher in deeper sea fish than in reef fish (host-parasite combinations: 12.50 vs 10.13, number of species per fish 3.75 vs 3.00); however, we identified four biases which diminish the validity of this comparison. Finally, these results and previously published results allow us to propose a generalization of parasite biodiversity for four major families of reef-associated fishes (Lutjanidae, Nemipteridae, Serranidae and Lethrinidae): well-sampled fish have a mean of 20 host-parasite combinations per fish species, and the number of parasites identified at the species level is 10 per fish species.ConclusionsSince all precautions have been taken to minimize taxon numbers, it is safe to affirm than the number of fish parasites is at least ten times the number of fish species in coral reefs, for species of similar size or larger than the species in the four families studied; this is a major improvement to our estimate of biodiversity in coral reefs. Our results suggest that extinction of a coral reef fish species would eventually result in the coextinction of at least ten species of parasites.

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Section: Discussionmentioning

confidence: 99%

“…New, unpublished records indicated by [0]; other records: [6,24,25,45,47,58,59,71,78,79,81,87,88,107,155-166]. …”

Section: Appendix 1 Host-parasite Listmentioning

confidence: 99%

An annotated list of fish parasites (Isopoda, Copepoda, Monogenea, Digenea, Cestoda, Nematoda) collected from Snappers and Bream (Lutjanidae, Nemipteridae, Caesionidae) in New Caledonia confirms high parasite biodiversity on coral reef fish

et al. 2012

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“…Huys et al () found that Dissonus is a sister group of the Caligidae but their taxon sampling within the Caligidae was too sparse to be relevant to the current study. In the context of this study, we infer that the Dissonidae primitively lacked lunules, an inference in accord with their basal position in the group of caligiform families (Kabata , Benz , Boxshall et al ).…”

Section: Discussionmentioning

confidence: 99%

The lunule of caligid copepods: an evolutionarily novel structure

Kaji

Maran

Kondoh

et al. 2012

Evolution and Development

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Nearly half of the genera of the family Caligidae possess an evolutionarily novel structure called the "lunule" on the ventral surface of the frontal plate. Lunules are paired cup-like suckers that assist in securing attachment of the copepod parasite to its host. Although present in genera such as Caligus and Pseudocaligus, lunules are absent in other caligid genera such as Lepeophtheirus as well as in more primitive caligiforms such as members of the families Trebiidae and Dissonidae. We compared the morphology and development of the anterior margin of the frontal plates between two caligids, Pseudocaligus fugu and Lepeophtheirus sekii, and a more basal caligiform, Dissonus heronensis (a dissonid), using scanning electron, transmission electron, and laser confocal microscopes. Our observations suggest that the lunules originated as a modification of the marginal membranes of the ancestral frontal plates. We also demonstrated the presence of an anlagen cell population for the lunule and marginal membrane in the developing frontal plate. These primordial cells can be detected as early as the first stage of the chalimus phase. Based on these observations, an evolutionary scenario for the lunule is proposed based on cytological evidence. This case study enhances our understanding of "evolutionary novelty," which is a main focus of contemporary evolutionary developmental biology.

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“…This family of fishes has been relatively well sampled in New Caledonian waters, with more than 600 specimens examined (Justine et al, 2010, and subsequent studies). Fifty specimens of Plectropomus leopardus were examined and 20 species of parasites were recorded from them (Boxshall et al, 2008;Bray & Justine, 2007;Justine et al, 2010;Justine & Euzet, 2006). These figures give an idea of the likely rarity of H. plectropomi; however, the paucity of infected hosts is compensated for by the high intensity of infection, with the single infected specimen examined containing several hundred thousand eggs.…”

Section: Discussionmentioning

confidence: 99%

Huffmanela plectropomi n. sp. (Nematoda: Trichosomoididae: Huffmanelinae) from the coralgrouper Plectropomus leopardus (Lacépède) off New Caledonia

Justine

2011

Syst Parasitol

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Huffmanela plectropomi n. sp. is described from eggs only, which were found in black spots in the mesentery of a coralgrouper, Plectropomus leopardus (Lacépède), caught near Nouméa, New Caledonia, South Pacific. The eggs are 64-76 (mean 69) μm in length and 29-35 (mean 32) μm in width, with a thin shell. The surface of the eggs bears a thick, continuous layer of filaments. The species is distinguished from other members of the genus by the dimensions of its eggs and the characteristics of their surface. This is the first species of Huffmanela Moravec, 1987 to be described from a grouper (Serranidae, Epinephelinae).

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A revision of the family Dissonidae Kurtz, 1924 (Copepoda: Siphonostomatoida)

Cited by 15 publications

References 13 publications

An annotated list of fish parasites (Isopoda, Copepoda, Monogenea, Digenea, Cestoda, Nematoda) collected from Snappers and Bream (Lutjanidae, Nemipteridae, Caesionidae) in New Caledonia confirms high parasite biodiversity on coral reef fish

An annotated list of fish parasites (Isopoda, Copepoda, Monogenea, Digenea, Cestoda, Nematoda) collected from Snappers and Bream (Lutjanidae, Nemipteridae, Caesionidae) in New Caledonia confirms high parasite biodiversity on coral reef fish

The lunule of caligid copepods: an evolutionarily novel structure

Huffmanela plectropomi n. sp. (Nematoda: Trichosomoididae: Huffmanelinae) from the coralgrouper Plectropomus leopardus (Lacépède) off New Caledonia

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