Third-stage larva shifts host fish from teleost to elasmobranch in the temporary parasitic isopod, Gnathia trimaculata (Crustacea; Gnathiidae)

Ota, Yuzo; Hoshino, Osamu; Hirose, Mamiko; Tanaka, Katsuhiko; Hirose, Euichi

doi:10.1007/s00227-012-2018-2

Cited by 26 publications

(19 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Instead we must consider the taxonomic position of the subterranean gnathiids from Miyako-jima based on the zuphea larvae. Their size-frequency distribution shows three size classes, interpreted by us as three stages, which is the usual number of zuphea stages in gnathiids (Smit & Davies 2004, Ota et al 2012). All three stages share aspects of external morphology such as clypeus shape, the number of dorsal setae on the head and pleotelson, and the setation of the external margins of the uropodal rami.…”

Section: Identification Of the Subterranean Gnathiid Larvae And Theirmentioning

confidence: 93%

“…The TVM+G model was used for the analysis, and bootstrap values of >50% in ML, MP, and NJ analyses are noted. quences ranged from 25.3 to 32.9% among G. limicola, G. maculosa, and G. trimaculata (Ota et al 2012). The COI sequence difference between G. limicola from Okinawa Island (AB713956) and the subterranean gnathiid larvae from Miyako-jima is rather low (12.3%), so the larvae probably belong to G. limicola.…”

Section: Identification Of the Subterranean Gnathiid Larvae And Theirmentioning

confidence: 93%

“…We performed PCR amplification under the following conditions: 94°C for 5 min, followed by 35 cycles at 94°C for 30 s, 55°C for 30 s, and 72°C for 2 min 30 s, with a final extension at 72°C for 7 min. PCRamplified DNA fragments (approximately 1300 bp) were cloned and sequenced as described by Ota et al (2012). Sequence was deposited in GenBank under Accession Number (LC107775).…”

Section: Dna Extraction Amplification and Sequencingmentioning

confidence: 99%

“…Phylogenetic analyses were carried out between our specimens and a total of seven other specimens of the species Gnathia limicola Tanaka, 2007, G. maculosa Ota andHirose, 2009, and G. trimaculata Coetzee, Smit, Grutter, and Davies, 2009, because, until now, partial COI sequences have been reported in only these three species (Ota et al 2012). We confined our analyses to a specific subset of 857-860 base pairs of the partial COI sequences, but this was reduced to 857 positions because poorly aligned and divergent regions were detected by Gblocks.…”

Section: Molecular Identification With Dna Barcodesmentioning

confidence: 99%

See 3 more Smart Citations

Occurrence of temporary fish ectoparasites (Isopoda; Gnathiidae) in low-salinity subterranean habitats of Miyako-jima Island, Ryukyu Islands, southwestern Japan

Ota

Fujita

Hirose

2016

Plankton Benthos Res

Self Cite

View full text Add to dashboard Cite

Abstract:The occurrence of gnathiid isopods, a group of parasitic crustaceans on fish, is reported from low-salinity habitats in Miyako-jima Island, Ryukyu Islands, southwestern Japan. In total, 1,096 gnathiid larvae were collected from four of ten surveyed sites, but mostly at two subterranean water sites connected with anchialine waters and/or the sea. Three stages of parasitic zuphea larvae were collected, but no free-living adults. Morphological observations and DNA barcoding show that these larvae are closely related to, and most likely conspecific with, Gnathia limicola a dweller of mud burrows in brackish-water habitats. Our study suggests that G. limicola actively enters into low-salinity subterranean habitats, presumably to search for euryhaline fishes to use as temporary hosts.

show abstract

Section: Identification Of the Subterranean Gnathiid Larvae And Theirmentioning

confidence: 93%

Section: Identification Of the Subterranean Gnathiid Larvae And Theirmentioning

confidence: 93%

Section: Dna Extraction Amplification and Sequencingmentioning

confidence: 99%

Section: Molecular Identification With Dna Barcodesmentioning

confidence: 99%

See 2 more Smart Citations

Occurrence of temporary fish ectoparasites (Isopoda; Gnathiidae) in low-salinity subterranean habitats of Miyako-jima Island, Ryukyu Islands, southwestern Japan

Ota

Fujita

Hirose

2016

Plankton Benthos Res

Self Cite

View full text Add to dashboard Cite

show abstract

“…'permanent' parasites such as copepods (Finley and Forrester 2003) and cymothoid isopods (Adlard and Lester 1994;Roche et al 2013a), and those that remain on the host only briefly while feeding, i.e. 'temporary' parasites such as gnathiid (Smit et al 2003;Ota et al 2012) and corallanid isopods (Grutter and Lester 2002), which are often classified as mobile micropredators (Lafferty and Kuris 2002). Surprisingly, only a few studies have tested the effect of L. dimidiatus on parasite loads.…”

Section: Chapter 5: Diel Patterns Of Infection By Gnathiid Isopods Onmentioning

confidence: 99%

Parasites and cleaning behaviour in damselfishes

Sun¹

View full text Add to dashboard Cite

Pomacentrids (damselfishes) are one of the most common and diverse group of marine fishes found on coral reefs. However, their digenean fauna and cleaning interactions with the bluestreak cleaner wrasse, Labroides dimidiatus, are poorly studied. This thesis explores the digenean trematode fauna in damselfishes from Lizard Island, Great Barrier Reef (GBR), Australia and examines several aspects of the role of L. dimidiatus in the recruitment of young damselfishes.My first study aimed to expand our current knowledge of the digenean trematode fauna of damselfishes by examining this group of fishes from Lizard Island on the northern GBR. In a comprehensive study of the digenean trematodes of damselfishes, 358 individuals from 32 species of damselfishes were examined. I found 19 species of digeneans, 54 host/parasite combinations, 18were new host records, and three were new species (Fellodistomidae n. sp., Gyliauchenidae n. sp.and Pseudobacciger cheneyae). Combined molecular and morphological analyses show that Hysterolecitha nahaensis, the single most common trematode, comprises a complex of cryptic species rather than just one species. This work highlights the importance of using both techniques in conjunction in order to identify digenean species. The host-specificity of digeneans within this group of fishes is relatively low. Most of the species possess either euryxenic (infecting multiple related species) or stenoxenic (infecting a diverse range of hosts) specificity, with only a handful of species being convincingly oioxenic (only found in one host species). Overall, the trematode richness in pomacentrid fishes is relatively low compared with that of many other coral reef fish families. The richness is probably best explained by the small size of most pomacentrids. In terms of beta diversity, of the total 23 trematode species having now been reported for the GBR in pomacentrids, just 14 are shared between Heron and Lizard Island. Five species have been recorded only from Lizard Island and four only from Heron Island. A total of 14 species reported from the two sites can be classified as core pomacentrid-specific parasites.I then examined whether the abundance and diversity of damselfish recruits differed on reefs relative to reefs from which cleaner wrasse had been removed for 12 years. Past studies have shown that cleaner wrasse enhance abundance and diversity of adult resident damselfishes (species that are site-attached), however, it is not known whether this effect occurs at recruitment or is driven by post-settlement events such as migration or differential mortality. I characterised the abundance of damselfish recruits on reefs with and without cleaner wrasse for five days in each of three lunar cycles, beginning four days after the new moon (November, December and January). The total abundance of damselfish recruits and specifically two species, Chrysiptera rollandi and P. amboinensis, was higher on reefs with cleaner wrasse than on reefs without. However, overall iii species diversity of damself...

show abstract

Metazoan Diseases

Hadfield

2021

Clinical Guide to Fish Medicine

View full text Add to dashboard Cite

Third-stage larva shifts host fish from teleost to elasmobranch in the temporary parasitic isopod, Gnathia trimaculata (Crustacea; Gnathiidae)

Cited by 26 publications

References 39 publications

Occurrence of temporary fish ectoparasites (Isopoda; Gnathiidae) in low-salinity subterranean habitats of Miyako-jima Island, Ryukyu Islands, southwestern Japan

Occurrence of temporary fish ectoparasites (Isopoda; Gnathiidae) in low-salinity subterranean habitats of Miyako-jima Island, Ryukyu Islands, southwestern Japan

Parasites and cleaning behaviour in damselfishes

Metazoan Diseases

Contact Info

Product

Resources

About