Topic
Chlopsidae
About: Chlopsidae is a research topic. Over the lifetime, 6 publications have been published within this topic receiving 129 citations. The topic is also known as: Xenocongridae.
Papers
1 May 2006
TL;DR: A sampling survey was carried out to study the distribution and ecology of leptocephali in several different areas of the western South Pacific between 160 and 175°E during August and September of 1995 as mentioned in this paper.
Abstract: A sampling survey was carried out to study the distribution and ecology of leptocephali in several different areas of the western South Pacific between 160 and 175°E during August and September of 1995. The survey included transects of stations across the westward flowing South Equatorial Current (SEC) region to the northwest of Fiji and south to 30°S, a transect to the north of the Tasman Front, and a transect that passed through the Solomon Islands. A total of 2362 leptocephali of at least 94 species of 13 families of eels and other elopomorph fishes were collected. The most abundant leptocephali in the region were of the marine eel families Serrivomeridae, Congridae, Nemichthyidae, and Muraenidae of the order Anguilliformes. The leptocephali of shallow water eels of the Chlopsidae, Moringuidae, Muraenidae, and Ophichthidae were most abundant and present at a wide size range in the low salinity “Fresh Pool”, which is also located closest to the major islands in the SEC region. Anguillid leptocephali were also most abundant in the SEC region and several species appeared to be spawning at that latitude. Cluster analysis and ordination of the catch rates of leptocephali suggested there were four regional assemblages related to the offshore spawning of mesopelagic serrivomerid eels, the presence of anguillid leptocephali in the SEC region and the relationship between the regional ocean current patterns and the geography of islands where shallow water marine eels live and probably spawn nearby. More impoverished assemblages were found in the southern regions where there are fewer islands, colder, higher salinity surface waters, and predominantly eastward flow. These findings support the hypothesis that various taxa of anguillid and marine eels use different spawning and recruitment strategies in the western South Pacific region as has been suggested by studies on leptocephali in the Northern Hemisphere.
43 citations
TL;DR: Two new deepwater species of false moray eels belonging to the family Chlopsidae, from Fiji and the Solomon Islands, are described and illustrated.
Abstract: Chlopsis slusserorum , from Fiji and the Solomon Islands, and Chlopsis bidentatus , from Fiji and New Caledonia, two new deepwater species of false moray eels belonging to the family Chlopsidae, are described and illustrated. Chlopsis slusserorum is distinguished from all other chlopsids by its combination of high vertebral count and distinctive pigmentation. Chlopsis bidentatus is distinguished by the combination of bicolored pigmentation, dorsal origin slightly behind gill opening and anteriorly biserial vomerine dentition.
6 citations
TL;DR: Two species of different families belonging to the order Anguilliformes have their ranges extended in the southwestern Atlantic: the chlopsid Chlopsis dentatus from Rio de Janeiro and the muraenid Gymnothorax maderensis from Bahia.
Abstract: Two species of different families belonging to the order Anguilliformes have their ranges extended in the southwestern Atlantic: the chlopsid Chlopsis dentatus (Seale, 1917) from Rio de Janeiro and the muraenid Gymnothorax maderensis (Johnson, 1862) from Bahia. The new records extend the distribution of these species south along the Brazilian coastline. Morphometric data of the specimens are provided and compared to data from the literature.
4 citations
TL;DR: The phylogenetic relationships of the morays are examined using mitochondrial 12S and 16S sequence data, finding support for a monophyletic family Muraenidae that is part of a monophysletic suborder Muraenoidei, which is revised to include the anguilliform families Heterenchelyidae and Myrocongridae, and to exclude the family Chlopsidae.
Abstract: The family Muraenidae is one of the largest and most recognizable eel groups. Moray eels are key components of marine ecosystems but their relationships remain poorly understood. The phylogenetic relationships of the morays are examined herein using mitochondrial 12S and 16S sequence data, totaling 1673 bp for 139 taxa. The results of our analyses found support for a monophyletic family Muraenidae that is part of a monophyletic suborder Muraenoidei, which is revised to include the anguilliform families Heterenchelyidae and Myrocongridae, and to exclude the family Chlopsidae. The muraenids form two monophyletic subfamilies, Muraeninae and Uropterygiinae. Of the genera that had multiple species included for analysis, only the type genus of the family, Muraena, is found to be monophyletic. In the subfamily Uropterygiinae, Uropterygius is not recovered as a monophyletic genus. In the subfamily Muraeninae, the species-rich piscivorous genera, Enchelycore and Gymnothorax, and the durophagous genus, Echidna, are demonstrably not monophyletic. The monotypic Gymnomuraena is the sister group to all other muraenine species. The relationships within Muraenidae require much additional study and its genera remain in urgent need of revision. The order Anguilliformes is revised herein to include four suborders: Anguilloidei, Congroidei, Muraenoidei, and Synaphobranchoidei. All four families of the order Saccopharyngiformes are nested within Anguilliformes, recovered as part of a clade that includes Anguillidae; the saccopharyngiform families are referred to the suborder Anguilloidei sensu novum.
TL;DR: The hypothesis that most taxa of marine eels spawn close to their adult habitats, and indicate that despite high bio- diversity of Marine eels in the Northern Bahamas, only some species of leptocephali appear to get transported far offshore by ocean currents is indicated.
Abstract: Catches of leptocephali of shelf and slope marine eels of the Chlopsidae, Congridae, Moringuidae, Muraenidae, and Ophichthidae collected during a survey in the southwestern Sargasso Sea in late September and early October 1984 were analyzed to learn about their reproduc- tive ecology and larval transport. Sampling along a transect from the Florida Current (FC) out across the southwestern Sargasso Sea and in the Northwest Providence Channel (NWPC) of the Northern Bahamas enabled the evaluation of the larval distributions, abundances and size ranges, regional assemblage structure, and the apparent spawning areas of these marine eels. Distinctly different assemblages observed in the FC and NWPC included the congrid genera Heteroconger, Paraconger, Uroconger, and many ophichthid species, which were rare or absent offshore. Other taxa of congrids, chlopsids, muraenids and moringuids were present in all areas, but the smallest specimens of most taxa were only caught at the NWPC or FC stations. Multivariate analyses reflected higher richness and abundance in the FC and NWPC and also similar species compositions in offshore areas. The patterns of distribution of these leptocephali differed from those of anguillid, nettastomatid, and mesopelagic eel leptocephali collected in the same survey. These findings support the hypothesis that most taxa of marine eels spawn close to their adult habitats, and indicate that despite high bio- diversity of marine eels in the Northern Bahamas, only some species of leptocephali appear to get transported far offshore by ocean currents.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2017 | 1 |
| 2015 | 1 |
| 2013 | 1 |
| 2007 | 1 |
| 2006 | 1 |
| 2003 | 1 |