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Apparent signal of competition limiting diversification after ecological transitions from marine to freshwater habitats.
TLDR
It is shown that in multiple geographically independent invasions of freshwaters by marine Sea Catfishes (Ariidae), rates of both morphological disparification and lineage diversification are inversely related to the presence and diversity of other freshwater fish lineages, suggesting that competitive constraints may be an important factor regulating adaptive radiation.
Phylogenetic analysis of the family Ariidae (Ostariophysi: Siluriformes), with a hypothesis on the monophyly and relationships of the genera
TLDR
A new concept of Ariinae is presented: the subfamily is found to be unequivocally monophyletic and includes all ariid genera, except Galeichthys and Bagre, and the remaining ariids are strongly supported by new morphological characters.
Taxonomic Status and Redescription of the Gillbacker Sea Catfish (Siluriformes: Ariidae: Sciades parkeri)
TLDR
Examination of a wide range of sizes of individuals from different localities and examination of types and original species descriptions of Silurus parkeri, Bagrus flavescens, B. albicans, and A. despaxi has lead to the conclusion that all these names refer to the Gillbacker Sea Catfish and the valid name for the species is Sciades parkeri.
Review of the Genus Cathorops (Siluriformes: Ariidae) from the Caribbean and Atlantic South America, with Description of a New Species
TLDR
Examination of types of nominal species as well as comprehensive collections of non-types from Caribbean and Atlantic South America, lead to the conclusion that C. spixii is restricted to Brazil and thatC.
Sharks and batoids (Subclass Elasmobranchii) caught in the industrial fisheries off the Brazilian North coast
  • A. Marceniuk
  • Environmental Science
    Revista Nordestina de Biologia
  • 12 February 2020
The Brazilian North coastline comprises a total area of approximately 223,000 km2, representing one of the world’s most essential fishing grounds. Availability of data on the diversity of fishes
Morphology and molecular evidence support the validity of Pogonias courbina (Lacepède, 1803) (Teleostei: Sciaenidae), with a redescription and neotype designation
TLDR
P. courbina is distinguished by the occurrence of characteristic thickening of the dorsal spines VII to XI in all specimens larger than 250 mm SL and the method Automatic Barcode gap Discovery detected gaps in nucleotid distance congruent with the NJ, MP, and ML tree analysis.
Redescription of Orthopristis ruber and Orthopristis scapularis (Haemulidae: Perciformes), with a hybridization zone off the Atlantic coast of South America.
TLDR
The limits of Orthopristis ruber are reviewed, while Orthopristsis scapularis is recognized as a valid species for the northern and northeastern coasts of South America.
Taxonomic revision of the New World genus Ariopsis Gill (Siluriformes: Ariidae), with description of two new species
TLDR
Based on morphological and molecular evidence, the systematic status and taxonomic limits of the genus Ariopsis are herein redefined and a molecular phylogeny is provided together with an identification key to the eight species in Ariopsis.
Description of Cathorops manglarensis , a new species from the Colombian Pacific, with redescription of Cathorops multiradiatus (Siluriformes; Ariidae)
TLDR
In this study, C. multiradiatus is redescribed and a new sympatric species with similar number of anal-fin rays is described and intersexual differences of both species evaluated.
Redescription of the blacktip sea catfish Plicofollis dussumieri (Valenciennes) (Siluriformes: Ariidae), with a new record from the Red Sea and notes on the diversity and distribution of Plicofollis
TLDR
An identification key to the species of the genus, and a phylogenetic analysis of available mitochondrial gene sequences (cyt b and ATPase 8/6), including species not considered in previous molecular studies are provided.
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