Results 21 to 30 of about 842 (172)

Los Ancistrinae (Pisces: loricariidae) de Argentina [PDF]

open access: yesHereditas, 1994
La subfamilia Ancistrinae contiene alrededor de 28 géneros (Isbrücker y Nijssen, 1992) y 127 especies (Isbrücker, 1980; Boeseman, 1982; Heitmans, et al., 1983; Rapp Py-Daniel, 1985, 1991; Nijssen e Isbrücker, 1985, 1987, 1990; Ferraris etal., 1986; Reis, 1987; Isbrücker y Nijssen, 1988, 1989, 1991; Isbrücker et al., 1988; Muller, 1989; Mullere ...
Miquelarena, Amalia María   +3 more
openaire   +4 more sources

Fish Diversity and Environmental Relationships in the Jinsha River During the Initial Phases of the 10-Year Fishing Ban: A Metabarcoding Approach. [PDF]

open access: yesEcol Evol
Using eDNA metabarcoding, we identified 61 fish species in the Jinsha river during the early stage of the Yangtze river fishing ban. Fish diversity showed seasonal and regional variation, with Cypriniformes as the dominant group. Key environmental factors like temperature and dissolved oxygen were closely linked to diversity patterns.
Zhao Y   +7 more
europepmc   +2 more sources

Miniaturization in Otothyris Myers, 1927 (Loricariidae: Hypoptopomatinae) [PDF]

open access: yesNeotropical Ichthyology, 2014
Many species of freshwater fishes are considered miniatures, nevertheless, their identification as miniatures is frequently based only on an arbitrary criterion of small body size. Although some species of Otothyris had been suggested to be miniature, informations about the process and consequences of miniaturization in the genus are lacking.
Rosa, Alaina Cristine   +1 more
openaire   +5 more sources

Comparative cytogenetic analyses in Ancistrus species (Siluriformes: Loricariidae) [PDF]

open access: yesNeotropical Ichthyology, 2020
ABSTRACT Ancistrus is a specious genus of armored catfishes that has been extensively used for cytogenetic studies in the last 17 years. A comparison of the extensive karyotypic plasticity within this genus is presented with new cytogenetic analysis for Ancistrus cf. multispinis and Ancistrus aguaboensis. This study aims to improve our understanding of
Larissa Glugoski   +5 more
openaire   +4 more sources

Localization of 18S ribosomal genes in suckermouth armoured catfishes Loricariidae (Teleostei, Siluriformes) with discussion on the Ag-NOR evolution

open access: yesComparative Cytogenetics, 2012
The family Loricariidae with about 690 species divided into six subfamilies, is one of the world’s largest fish families. Cytogenetic studies conducted in the family showed that among 90 species analyzed the diploid number ranges from 2n=38 in ...
Anderson Alves   +6 more
doaj   +1 more source

Nuevo registro de Pterygoplichthys disjunctivus (Actinopterygii: Loricariidae) en la desembocadura del río Coahuayana, Coahuayana, Michoacán, México

open access: yesRevista Mexicana de Biodiversidad, 2012
En la desembocadura del río Coahuayana, al noroeste del estado de Michoacán fue registrada la presencia del plecostoma rayado, Pterygoplichthys disjunctivus (Loricariidae).
Edgar Raúl Sandoval-Huerta   +4 more
doaj   +1 more source

Histological studies on the effects of Clinostomum marginatum (Digenea, Clinostomidae) in its second intermediate host Loricariichthys platymetopon (Osteichthyes, Loricariidae) of the upper Paraná River, Brazi

open access: yesActa Scientiarum: Biological Sciences, 2008
Descreve-se a histopatologia da parasitose de Loricariichthys platymetopon (Osteichthyes, Loricariidae) por Clinostomum marginatum (Digenea, Loricariidae). Os parasitas foram observados encistados na base das nadadeiras, músculo, face interna do opérculo,
Jorge da Costa Eiras   +3 more
doaj   +1 more source

Invasive Amazon sailfin catfish (Pterygoplichthys pardalis) impacts the survivability and growth of native food fishes in India

open access: yesAquatic Living Resources
The prevalence of sailfin catfishes (Pterygoplichthys spp.) in inland waters, including vast aquaculture systems of India is rising. This might be a serious threat to the country’s native freshwater biological resources and aquaculture production ...
Hussan Ajmal   +6 more
doaj   +1 more source

Complete mitochondrial genome sequence of Hypostomus francisci (Siluriformes: Loricariidae) [PDF]

open access: yesMitochondrial DNA Part B, 2018
Hypostomus francisci, commonly known as “cascudo”, is a fish of ecological importance found in the upper São Francisco River, Minas Gerais, Brazil. Here we present the complete mitogenome (mtDNA) of H. francisci. The whole molecule is 16,541 bp long and contains 13 protein-coding genes (PCGs), two rRNA genes, 22 tRNA genes, and one control region (D ...
Adriana Heloísa Pereira   +9 more
openaire   +2 more sources

Partial albinism in Rhinelepis aspera from the Upper Paraná Basin, Brazil,with a review of albinism in South American freshwater fishes

open access: yesRevista Mexicana de Biodiversidad, 2016
This study reports a case of partial albinism in Rhinelepis aspera from the Aguapeí River, Upper Paraná Basin, Brazil and provides a review of albinism cases in freshwater fishes from South America.
André Batista Nobile   +4 more
doaj   +1 more source

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