Results 51 to 60 of about 172 (137)

Interspecific Differentiation in Heavy Metals Concentration in Fishes of the Apa River, Upper Paraguay River Basin

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
Heavy metals concentration in fishes are important indicator geomorphological or environmental integrity in aquatic habitats. Aiming to evaluate metal concentration in fish muscles in Apa River, upper Paraguay basin, we analyzed 124 individuals of eight ...
Yzel Rondon Súarez   +2 more
doaj   +3 more sources

Fishes of the Taquari-Antas river basin (Patos Lagoon basin), southern Brazil Peixes da bacia do rio Taquari-Antas (sistema da Laguna dos Patos), sul do Brasil

open access: yesBrazilian Journal of Biology, 2013
The aquatic habitats of the Taquari-Antas river basin (in the Patos Lagoon basin, southern Brazil) are under marked environmental transformation because of river damming for hydropower production.
FG. Becker   +8 more
doaj  

Fecundidad y desarrollo gonadal de la “boga” Leporinus obtusidens (Pisces, Anostomidae) en la represa Yacyretá, Argentina

open access: yesRevista Veterinaria, 2010
En el presente trabajo se exponen los resultados obtenidos durante cinco años consecutivos de muestreos de boga Leporinus obtusidens en dos puntos del río Paraná, Argentina, considerando a uno de ellos como zona de impacto de la represa Yaciretá y otro sitio, lejano a la misma, como zona control.
Flores Quintana, Carolina Isabel   +4 more
openaire   +3 more sources

Socio-economic characteristics of the Cachoeira de Emas small-scale fishery in Mogi-Guaçu River, State of São Paulo, Brazil

open access: yesBrazilian Journal of Biology
Fishing in the area of Cachoeira de Emas dates from the aboriginal Painguás who inhabited its margins. The socioeconomic conditions of the fishers and fishing are described, derived from personal interviews with 33 fishers.
J. Peixer, M. Petrere Júnior
doaj   +1 more source

Fishes of the Taquari-Antas river basin (Patos Lagoon basin), southern Brazil

open access: yesBrazilian Journal of Biology
The aquatic habitats of the Taquari-Antas river basin (in the Patos Lagoon basin, southern Brazil) are under marked environmental transformation because of river damming for hydropower production.
FG. Becker   +8 more
doaj   +1 more source

Substituição do farelo de soja pelo farelo de linhaça em dietas para a piava (Leporinus obtusidens)

open access: yesSemina: Ciências Agrárias, 2013
The aim of this study was evaluate the replacement of soybean meal by linseed meal on growth of piava juveniles. The experiment was carried on fish farming laboratory of UFSM/CESNORS, on March to April, 2011. They were used 360 fish, (initial weight = 9.0 ± 2.5 g), which placed in a water re-use system composed by 15 tanks (250L), with mean temperature
Dirleise Pianesso   +6 more
openaire   +2 more sources

Ocorrência de peixes não-nativos no sistema estuarino-lagunar de Tramandaí, Rio Grande do Sul, Brasil

open access: yesRevista Eletrônica Científica da UERGS, 2015
O presente trabalho tem como objetivo relatar novos registros de peixes não-nativos no sistema estuarino-lagunar do rio Tramandaí (SELT) e apresentar uma revisão das espécies de peixes invasoras na Bacia Hidrográfica do Rio Tramandaí (BHRT), no litoral ...
Rodrigo Machado   +4 more
doaj   +1 more source

Secuencias del gen mitocondrial para identificación de especies de animales

open access: yesRevista Colombiana de Ciencia Animal Recia, 2013
Marcadores moleculares basados en el ADN mitocondrial (ADNmt) tienen herencia materna y se pueden utilizar para evaluar relaciones filogenéticas y taxonómicas.
JOYCE AZAMBUJA DE OLIVEIRA,   +6 more
doaj   +1 more source

Isolation and characterization of 20 polymorphic microsatellite loci in the migratory freshwater fish Leporinus obtusidens (Characiformes: Anostomidae) using 454 shotgun pyrosequencing

open access: yesJournal of Fish Biology, 2015
Twenty polymorphic microsatellite markers were developed for the Neotropical fish Leporinus obtusidens using a next generation sequencing approach and tested in two other characifomes species, Schizodon platae and Prochilodus lineatus. Microsatellite loci alleles in L.
Villanova, Gabriela Vanina   +5 more
openaire   +3 more sources

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