Results 11 to 20 of about 277 (158)

Macroparasites of silversides (Atherinopsidae: Odontesthes) in Argentina

open access: yesRevista Mexicana de Biodiversidad, 2016
This study presents new geographical distribution records for the macroparasites of the marine Odontesthes nigricans (Richardson, 1848) (89 wild specimens), and for the freshwater silversides Odontesthes bonariensis (Valenciennes, 1835) (43 wild and 108 ...
Verónica Flores   +5 more
doaj   +4 more sources

Ontogenia temprana de Poblana letholepis (Actinopterygii: Atherinopsidae)

open access: yesRevista Mexicana de Biodiversidad, 2016
Poblana letholepis es endémica del lago cráter La Preciosa, Puebla. La especie está amenazada debido a que su hábitat se encuentra bajo desecación por la deforestación, el sobrepastoreo y malas prácticas de riego.
María Cecilia Hernández-Rubio   +2 more
doaj   +3 more sources

Genomic Diversity and Species Boundaries of the Chilean Silversides Fishes (Atheriniformes, Atherinopsidae)

open access: yesDiversity
Silverside fishes in Chile, abundant in marine and freshwater habitats, are classified in two genera: Odontesthes and Basilichthys. Both genera have widespread distributions across southern South America, with marine origins.
Yanina F. Briñoccoli   +4 more
doaj   +3 more sources

Actinopterygii, Atheriniformes, Atherinopsidae, Odontesthes bonariensis Valenciennes, 1835: new records for the Plata Basin, Argentina [PDF]

open access: yesCheck List, 2013
The present work reports the presence of the silverside Odontesthes bonariensis Valenciennes, 1835, in 11 water bodies and six new locations from the lower Plata Basin (Argentina).
Esteban Avigliano, Alejandra Volpedo
doaj   +6 more sources

Toxicidade aguda do nitrito em larvas do peixe-rei marinho Odontesthes argentinensis (Teleostei, Atherinopsidae) Acute toxicity of nitrite on larvae of the marine pejerrey Odontesthes argentinensis (Teleostei, Atherinopsidae)

open access: yesCiência Rural, 2006
Este trabalho visou a determinar o efeito tóxico do nitrito sobre larvas do peixe-rei marinho Odontesthes argentinensis através de testes agudos com 96h de duração.
Luís André Sampaio   +2 more
doaj   +2 more sources

Growth of the Silverside Atherinella brasiliensis in Tramandaí Estuary, Southern Brazil (Actinopterygii: Atherinopsidae) [PDF]

open access: yesNeotropical Ichthyology, 2007
The growth of Atherinella brasiliensis (Quoy & Gaimard, 1824) was studied through monthly samples taken at Tramandaí Lagoon, Imbé County, Rio Grande do Sul, Brazil. Animals were captured using a beach seine net.
Giovana Bervian, Nelson F. Fontoura
doaj   +3 more sources

Osmotic induction marking with Alizarin Red S on juveniles of pejerrey, Odontesthes bonariensis (Atherinopsidae) [PDF]

open access: yesNeotropical Ichthyology, 2013
Juveniles of pejerrey, Odontesthes bonariensis, were exposed to 0.1% Alizarin Red S (ARS) alone or with a previous immersion in 2.2% saline solution (Osmotic Induction, OI) to enhance the ARS marking method.
Daniela Campanella   +4 more
doaj   +7 more sources

Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes. [PDF]

open access: yesEcol Evol
Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Riverón S   +7 more
europepmc   +2 more sources

Global Patterns and Drivers of Freshwater Fish Extinctions: Can We Learn From Our Losses? [PDF]

open access: yesGlob Chang Biol
Nearly one‐third of freshwater fish species are currently at risk of extinction, with 100 species already lost. This study examines extinction patterns over the past 165 years, identifying habitat modification and loss, pollution, and invasive species as key drivers.
Vardakas L   +9 more
europepmc   +2 more sources

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