Results 91 to 100 of about 8,071 (223)

Evolutionary Trends of the Pharyngeal Dentition in Cypriniformes (Actinopterygii: Ostariophysi)

open access: yesPLoS ONE, 2010
The fish order Cypriniformes is one of the most diverse ray-finned fish groups in the world with more than 3000 recognized species. Cypriniformes are characterized by a striking distribution of their dentition: namely the absence of oral teeth and presence of pharyngeal teeth on the last gill arch (fifth ceratobranchial).
Pasco-Viel, Emmanuel   +6 more
openaire   +7 more sources

Diet composition and food overlap of Acestrorhynchus britskii and A. lacustris (Characiformes: Acestrorhynchidae) from Sobradinho reservoir, São Francisco river, Bahia State - doi: 10.4025/actascibiolsci.v33i4.7240

open access: yesActa Scientiarum: Biological Sciences, 2011
Fish diet studies contribute to understanding resource partitioning and community trophic structure. The present paper characterizes the diet of “peixe-cachorro” species Acestrorhynchus britskii and A.
Aline Alves Ferreira da Rocha   +4 more
doaj   +1 more source

Pathology associated with larval Eustrongylides sp. (Nematoda: Dioctophymatoidea) infection in Galaxias maculatus (Actinopterygii: Galaxiidae) from Patagonia, Argentina

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2019
Helminth infections within tissues tend to be subjected to a host response that can include encapsulation and melanization to isolate the parasite. The effectiveness of this response depends on the host species. During a survey of parasites of the native
S. Guagliardo, G. Viozzi, N. Brugni
semanticscholar   +1 more source

Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii)

open access: yesPLoS ONE, 2012
The Ginglymodi is one of the most common, though poorly understood groups of neopterygians, which includes gars, macrosemiiforms, and "semionotiforms." In particular, the phylogenetic relationships between the widely distributed "semionotiforms," and between them and other ginglymodians have been enigmatic.
openaire   +4 more sources

Divergent karyotypes of the annual killifish genus Nothobranchius (Cyprinodontiformes, Nothobranchiidae)

open access: yesComparative Cytogenetics, 2016
Karyotypes of two species of the African annual killifish genus Nothobranchius Peters, 1868, N. brieni Poll, 1938 and Nothobranchius sp. from Kasenga (D.R. Congo) are described.
Eugene Krysanov   +2 more
doaj   +3 more sources

Distribution and current conservation status of the Mexican Goodeidae (Actinopterygii, Cyprinodontiformes)

open access: yesZooKeys, 2019
The current distribution and abundance of the 40 species of Goodeidae fishes known from Mexico are described, and a total of 84 Evolutionarily Significant Units (ESUs) is designated within these species.
J. Lyons   +9 more
semanticscholar   +1 more source

First Japanese Records of the Flounders Pseudorhombus elevatus and P. quinquocellatus (Teleostei: Paralichthyidae) from Okinawa Island, Ryukyu Islands

open access: yesSpecies Diversity
Pseudorhombus elevatus Ogilby, 1912 and P. quinquocellatus Weber and de Beaufort, 1929 (Teleostei: Paralichthyidae) are newly recorded from Japan, based on 35 and two specimens, respectively, from Okinawa Island, Ryukyu Islands.
Mizuki Matsunuma   +2 more
doaj   +1 more source

First results on the diet of the invasive Pterois miles (Actinopterygii: Scorpaeniformes: Scorpaenidae) in the Hellenic waters

open access: yesActa Ichthyologica et Piscatoria, 2019
The diet composition of devil lionfish, Pterois miles (Bennet, 1828), from the Aegean Sea was investigated. The stomach contents of 42 samples (10 of which were empty) collected between May 2016 and November 2017 from Rhodes Island, Greece, were studied.
K. Zannaki   +3 more
semanticscholar   +1 more source

Vermiculated sailfin catfish, Pterygoplichthys disjunctivus (Actinopterygii: Siluriformes: Loricariidae): Invasion, biology, and initial impacts in East Kolkata Wetlands, India

open access: yesActa Ichthyologica et Piscatoria, 2019
Background. The East Kolkata Wetlands in India (a Ramsar site) are sewage-fed, nutrient-rich water bodies successfully used for fish production. The vermiculated sailfin catfish, Pterygoplichthys disjunctivus (Weber, 1991), exotic to India, has invaded ...
V. Suresh   +5 more
semanticscholar   +1 more source

The genome sequence of the Dracula fish, Danionella dracula (Britz, Conway & Rüber, 2009) [version 1; peer review: 2 approved]

open access: yesWellcome Open Research
We present a genome assembly from an individual Danionella dracula (the Dracula fish; Chordata; Actinopterygii; Cypriniformes; Danionidae; Danioninae). The genome sequence is 665.21 megabases in span.
Michelle Smith   +9 more
doaj   +1 more source

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