A Study on the Divergence of Japanese Fishes of the Genus Neoclinus

Fukao, Ryuzo; Okazaki, Toshio

doi:10.1007/bf03380120

Cited by 5 publications

(4 citation statements)

References 29 publications

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“…All females collected subtidally were ripe, having gonadal maturities ranked 4 or 5. (Table 5) approximate previous estimates from allozyme data fur other marine fishes (Winans, 1980;Kirpichnikov, 1981;Beckwitt, 1983;Waples and Rosenblatt, 1987), including G. metzi (Somero and SoulC, 1974) and species of the labrisomid Neoclinus (Fukao and Okazaki, 1987). The Guadalupe Island sample of Heterostichus had significantly lower mean heterozygosity and polymorphism levels than the other populations.…”

Section: Resultssupporting

confidence: 82%

“…These genetic distances (as well as data on morphological variation; see next section) are considerably less than those separating congeneric clinid (Stepien, 1992; see Fig. 2) and labrisomid species (Fukao and Okazaki, 1987;Stepien, 1992). Additionally, Thorpe (1 983), utilizing 900 congeneric species comparisons, noted that only some 2% have Nei's (1972) D values below 0.16 and only 0.5% below 0.1.…”

Section: Resultsmentioning

confidence: 82%

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Patterns of Gene Flow and Genetic Divergence in the Northeastern Pacific Clinidae (Teleostei: Blennioidei), Based on Allozyme and Morphological Data

Stepien¹,

Rosenblatt²

1991

Copeia

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Genetic relationships and distribution patterns among populations, subspecies, and species of northeastern Pacific myxodin clinids were analyzed from allozyme data. The most recent revision recognized six species and 12 subspecies in two genera, Heterostichus and Gibbonsia. Allozymes from 40 gene loci from all 12 nominal taxa were analyzed to compare heterozygosity levels, Hardy-Weinberg equilibrium conformance, genetic distances, and phylogenetic relationships. Sample sites ranged from Carmel, California, to central Baja California, Mexico, and included areas of sympatry, disjunct distribution, and relative isolation. Offshore island sites included the California Channel, San Benito, and Guadalupe islands; the last with several endemic nominal taxa. In addition, morphological characters putatively defining closely related taxa were reexamined because preliminary data suggested that some taxonomic separations had been made on the basis of sexually dimorphic characters and ecophenotypic variation. Most intraspecific samples shared close genetic relationship, consistent with little genetic isolation. Disjunct populations of G. montereyensis and G. metzi from north of Point Conception, California, and in areas of coldwater upwelling off northern Baja California, Mexico, respectively, are very similar. The Channel Island populations are little divergent from those of the mainland, however, the San Benito Islands population is slightly more genetically distinct. Populations of the geographically isolated Guadalupe Island are genetically divergent. Patterns of genetic relationships among populations may be explained by the relatively long larval life of clinids (up to two months), geographic continuity, and major coastal current patterns. Some allelic variation in G. elegans, G. montereyensis, and G. metzi also supports longitudinal clinal trends, which may suggest selection resulting from temperature. Both allozyme and morphological data failed to separate G. erythra from G. montereyensis. Gibbonsia erythra is a deepwater ecophenotype of G. montereyensis; males inhabit deeper water than females, and the supposed distinguishing characters are sexually dimorphic and/or depth related. Gibbonsia norae is a semiisolated population of G. montereyensis inhabiting the San Benito and Guadalupe islands, Mexico. A new key to the northeastern Pacific Clinidae is given.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 82%

Patterns of Gene Flow and Genetic Divergence in the Northeastern Pacific Clinidae (Teleostei: Blennioidei), Based on Allozyme and Morphological Data

Stepien¹,

Rosenblatt²

1991

Copeia

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“…Chaenopsid fishes, occurring in Korean waters, have previously been known only as two species (N. bryope and N. chihiroe), but an additional species has now been reported through this study. The ecological characteristics of chaenopsid fishes are known that they do not have large movements and inhabit small caves between rocks or in empty gastropod tubes (Stephens and Springer 1971;Fukao and Okazaki 1987;Fukao 1990). Due to this characteristic, their distribution ranges are expected to be considerably narrow (Hongjamrassilp et al 2020).…”

Section: Discussionmentioning

confidence: 99%

“…The supraorbital and nasal cirri are present or absent (Murase et al 2015). They exhibit a hiding behavior in crevices between rocky matrices, but occasionally inhabit empty gastropod shells (empty barnacles and empty worm shells) (Stephens and Springer 1971;Fukao 1980;Fukao and Okazaki 1987). Such behavior is advantageous to protect their bodies from potential predators and to care for their spawned eggs within the habitats (Murase and Sunobe 2011;Froese and Pauly 2020).…”

Section: Introductionmentioning

confidence: 99%

New record of Neoclinus lacunicola (Actinopterygii: Perciformes: Chaenopsidae) from Ulleung Island, Korea revealed by body morphometry and mitochondrial DNA barcoding

Myoung¹,

Jawad²,

Park³

2021

AIeP

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One specimen (38.3 mm SL) of Neoclinus lacunicola Fukao, 1980, belonging to the family Chaenopsidae, was first recorded from Ulleung Island, Korea (East Sea, otherwise known as the Sea of Japan) on 5 January 2021. This species was characterized by paired external pores of incomplete lateral line running from the upper margin of the opercle, seven pairs of supraorbital cirri arranged in two rows, occipital region with a pair of cirri, and 13 rays of pectoral fin. This species is morphologically similar to the Neoclinus toshimaensis Fukao, 1980, but differs in the number of cirri on the supraorbital (6–7 versus 9–11 cirri). This study documents the first report of N. lacunicola in Korean waters and proposes the new Korean name of ‘eol-lug-bi-neul-be-do-la-chi’ for the species. For the confirmation of the identity of the species, a partial gene sequence of the mt COI (570 bp) of N. lacunicola was obtained for the first time.

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Fishes ofNeoclinus from Okinawa with notes on the traits of their habitats

Fukao

1990

Jap. Jour. Ich.

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A Study on the Divergence of Japanese Fishes of the Genus Neoclinus

Cited by 5 publications

References 29 publications

Patterns of Gene Flow and Genetic Divergence in the Northeastern Pacific Clinidae (Teleostei: Blennioidei), Based on Allozyme and Morphological Data

Patterns of Gene Flow and Genetic Divergence in the Northeastern Pacific Clinidae (Teleostei: Blennioidei), Based on Allozyme and Morphological Data

New record of Neoclinus lacunicola (Actinopterygii: Perciformes: Chaenopsidae) from Ulleung Island, Korea revealed by body morphometry and mitochondrial DNA barcoding

Fishes ofNeoclinus from Okinawa with notes on the traits of their habitats

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