Results 71 to 80 of about 18,439 (295)
Observaciones sobre gónadas de algunas especies de peces del Paraná medio
Acta Zoológica Lilloana, 2022 Este artículo trata sobre las gónadas de algunas especies pertenecientes a siete familias de peces Characiformes y Siluriformes que se encuentran en el medio y bajo río Paraná.
Clarice Pignalberi
doaj
River Research and Applications, EarlyView.ABSTRACT Local and regional species diversity is influenced by historical factors, resource availability, biotic interactions, the presence of resources, and adequate environmental conditions. We evaluated the effects of local environmental variables and spatial structure on fish species richness and composition along sandy beaches of a Neotropical ...
Ronaldo Souza da Silva +8 more
wiley +1 more source
CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]
, 2017 In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan +2 more
core
Systematics of the Neotropical characiform genus Potamorhina (Pisces, Characiformes)
Smithsonian Contributions to Zoology, 1984 NMNH ; NH-Vertebrate Zoology ; SISP ; Peer ...
openaire +3 more sources
Ichthyological ecoregions of Argentina [PDF]
, 2002 The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis +2 more
core
Ecology of Freshwater Fish, Volume 34, Issue 4, October 2025.ABSTRACT The Neotropical catfish family Trichomycteridae contains parasitic fishes that include scale and mucus feeders (subfamily Stegophilinae) and blood feeders (i.e., ‘candirus’, subfamily Vandelliinae). The influence of parasitic catfishes on food web dynamics is unknown.
Carmen G. Montaña +7 more
wiley +1 more source
Fish fauna from Río Pilcomayo National Park and Ramsar Site and its surroundings, Formosa, Argentina [PDF]
, 2014 The first list of fish species from the Río Pilcomayo National Park and Ramsar Site (RPNP), located in the WetChaco plains of Northern Argentina is presented here.
Baigún, Claudio Rafael M. +5 more
core +4 more sources
Ontogenetic development of tetra Astyanax lacustris (Characiformes: Characidae) [PDF]
Neotropical Ichthyology, 2018 ABSTRACT Ontogenetic development of the tetra Astyanax lacustris was studied under laboratory conditions. Larvae obtained by induced reproduction were maintained individually in tissue-culture plates, at 25°C. Daily observations and morphometric measurements were performed.
Diego J. Stevanato, Antonio Ostrensky
openaire +4 more sources
Comparing lacustrine environments: the importance of the kind of habitat on the structure of fishes
Acta Limnologica Brasiliensia, 2018 Aim Fish diversity in two lentic environments: a lake connected (Barbosa lake) to a river and an artificial reservoir (Ninfeias reservoir) were determined in the dry and rainy periods in 2015. We expected to find more diversity in the connected lake and
Reinaldo José de Castro +3 more
doaj +1 more source
Neotropical Ichthyology, 2020 Pacus of the genus Myloplus represent a formidable taxonomic challenge, and particularly so for the case of M. asterias and M. rubripinnis, two widespread and common species that harbor considerable morphological diversity.
R. P. Ota +5 more
semanticscholar +1 more source