Revision of the fish family Kyphosidae (Teleostei: Perciformes)

Knudsen, Steen Wilhelm; Clements, Kendall D.

doi:10.11646/zootaxa.3751.1.1

Cited by 60 publications

(100 citation statements)

References 135 publications

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“…Specimens were first preserved frozen and later thawed and measured to the nearest mm, and meristic characters were determined according to Knudsen and Clements (2013). Morphology-based identifications, taxonomical nomenclature and classification were carried out following Knudsen and Clements (2013).…”

Section: Sample Collection and Specimen Assignationmentioning

confidence: 99%

“…According to Nelson (2016), this family contains 53 species divided into 14 genera, and Froese and Pauly (2017) recognize the same number of genera but 54 species. On the other hand, Knudsen and Clements (2013) reduce this number to 12 species in 2 genera. The sea chubs Kyphosus species typically inhabits shallow waters over sandy, rocky or grassy bottoms around coral reefs, mainly in the Atlantic, Indian and Pacific Oceans, and juveniles are commonly found among floating algae or below flotsam (Tortonese 1986).…”

Section: Introductionmentioning

confidence: 99%

“…Knudsen and Clements (2013) re-examine this genus within a world revision of the family based on both morphological and molecular characteristics, recognizing 12 valid species. According to these authors, four species are present in the Atlantic Ocean and the Mediterranean Sea: the brown chub Kyphosus bigibbus Lacepède, 1801, the brassy chub Kyphosus vaigiensis (Quoy and Gaimard, 1825), the blue sea chub Kyphosus cinerascens (Forsskål, 1775) and K. sectatrix.…”

Section: Introductionmentioning

confidence: 99%

“…A different taxonomic view of Kyphosus in the Atlantic and eastern Pacific Oceans, and using only morphologic characteristics, was provided by Sakai and Nakabo (2014), who only recognize 11 species, and share only 6 species with the revision presented by Knudsen and Clements (2013), stating that only three of them are present in the Atlantic Ocean and the Mediterranean Sea: Kyphosus atlanticus Sakai andNakabo, 2014, Kyphosus bosquii (Lacepède, 1802) and K. incisor. According to Sakai and Nakabo (2014), K. sectatrix in the Atlantic Ocean is found to represent two species, K. bosquii and a new species, K. atlanticus.…”

Section: Introductionmentioning

confidence: 99%

“…Many of the morphological discrepancies between the two mentioned revisions have been recently reported by Gilbert (2015), who considers K. atlanticus a junior synonym of K. sectatrix, following Knudsen and Clements (2013).…”

Section: Introductionmentioning

confidence: 99%

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Integrative taxonomy supports the presence of two species of <em>Kyphosus</em> (Perciformes: Kyphosidae) in Atlantic European waters

2017

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Summary:The taxonomic identification of one Kyphosus sectatrix and two Kyphosus vaigiensis specimens caught in the European Atlantic waters of Galicia, northwestern Spain, was carried out by means of integrative taxonomy, combining the examination of morphological characters and DNA barcodes. Taxonomical assignation based on morphological characters of these specimens was tested by comparing their COI sequences with available data of Kyphosus deposited in public repositories. The resulting neighbour-joining tree defined four clades corresponding to Barcode Index Number (BIN) and indicated that some nucleotide sequences from Kyphosus, previously deposited, probably originate from misidentified specimens, as would be expected from cryptic and sympatric species. The specimens of Kyphosus vaigiensis represent a new record for the waters of Galicia and the northernmost record in the eastern Atlantic. This kind of herbivorous tropical fishes could play an important role in the tropho-dynamic context of this temperate coastal ecosystem.Keywords: Kyphosus vaigiensis; Kyphosus sectatrix; molecular systematic; northern limit; Galician waters; ichthyogeography. Identificación de dos especies de Kyphosus (Perciformes: Kyphosidae) en aguas del Atlántico europeo mediante taxonomía integrativaResumen: Un ejemplar de Kyphosus sectatrix y dos de Kyphosus vaigiensis fueron capturados en aguas del Atlántico europeo, en Galicia, al noroeste de España. La identificación se llevó a cabo mediante taxonomía integradora, combinando el examen de caracteres morfológicos y códigos de barras de ADN. La asignación taxonómica basada en los caracteres morfológicos de estos especímenes fue testada comparando sus secuencias de COI con los datos de Kyphosus depositados en los repositorios públicos. El árbol filogenético resultante definió cuatro clados correspondientes al número de índice de códigos de barras (BIN), e indicó que algunas secuencias de nucleótidos de Kyphosus, previamente depositadas, provienen probablemente de especímenes identificados erróneamente, como cabría esperar de especies crípticas y simpátricas. Los especímenes de Kyphosus vaigiensis representan un registro nuevo para las aguas de Galicia y el más septentrional en el Atlántico oriental. La proliferación de peces tropicales herbívoros podría desempeñar un papel importante en el contexto trofo-dinámico del ecosistema costero templado.

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Section: Sample Collection and Specimen Assignationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integrative taxonomy supports the presence of two species of <em>Kyphosus</em> (Perciformes: Kyphosidae) in Atlantic European waters

2017

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Bibliography

2016

Fishes of the World

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Weak connectivity and population cohesiveness in rudderfish Kyphosus sandwicensis (Teleostei: Kyphosidae) inhabiting remote oceanic islands

Valencia

Meerhoff

Díaz-Cabrera

et al. 2020

Aquatic Conservation

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1. Population connectivity has a fundamental role in metapopulation dynamics, with important implications in conservation. Easter Island (EI) and Salas y Gómez Island (SG) in the Pacific Ocean are ideal for the study of population connectivity because they are separated by 415 km and isolated from other islands in the Pacific Ocean by >2,000 km. 2. Considering that dispersal processes could play a critical role in the persistence of its populations, the connectivity pattern of the rudderfish Kyphosus sandwicensis was evaluated between EI and SG using both a population genetics and a biophysical modelling approach. 3. The variability in the control region of the mitochondrial DNA did not show a significant phylogeographical pattern, and the variability in 16 microsatellite loci suggested that individuals of K. sandwicensis located at EI and SG belong to the same genetic population. However, historical migration showed that 0.2% of the recruits at EI come from SG and that 0.15% at SG come from EI per year. 4. Using simulated larval release during September and a larval development of 30 days in the plankton, biophysical modelling did not detect migration between the islands. Furthermore, self-recruitment shows interannual variation ranging from 5 to 10% of the total released larvae. 5. Whereas the genetic data showed a lack of population genetic structure but low connectivity of K. sandwicensis between EI and SG, the biophysical modelling showed null movement of particles between the islands. Stochastic movement of larvae or adults could explain the pattern observed, with rafting as an example. These low-frequency and stochastic movements may be important in maintaining the cohesiveness between EI and SG.

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Revision of the fish family Kyphosidae (Teleostei: Perciformes)

Cited by 60 publications

References 135 publications

Integrative taxonomy supports the presence of two species of <em>Kyphosus</em> (Perciformes: Kyphosidae) in Atlantic European waters

Integrative taxonomy supports the presence of two species of <em>Kyphosus</em> (Perciformes: Kyphosidae) in Atlantic European waters

Bibliography

Weak connectivity and population cohesiveness in rudderfish Kyphosus sandwicensis (Teleostei: Kyphosidae) inhabiting remote oceanic islands

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