Results 111 to 120 of about 4,670 (210)

Lista de peces de la provincia de La Pampa. [PDF]

open access: yes, 2015
Esta serie tiene como finalidad dar a conocer las especies presentes en los diferentes estados provinciales. Tomando como base los trabajos de López et al. (2003), Reis et al.
Del Ponti, Omar   +3 more
core   +1 more source

New hosts and distribution records of Braga patagonica, a parasite cymothoidae of fishes from the Amazon. [PDF]

open access: yes, 2019
Specimens of Braga patagonica Schiödte & Meinert, 1884 (Isopoda: Cymothoidae) from freshwater fishes deposited in Ichthyological Collection of Amazon National Research Institute (INPA), in central Amazon and from fishes from eastern Amazon (Brazil) were ...
ARAÚJO, C. S. O.   +3 more
core   +1 more source

Perulernaea pirapitingae n.sp. (Copepoda: Lernaeidae) a parasite of the serrasalmid fish, Piaractus brachypomus from the Meta River, Colombia

open access: yes, 2000
Perulernaea pirapitingae n.sp. a parasitic copepod (Lemaeidae) from the fish Piaractus brachypomus of the Meta River, Colombia, is described. In addition to the postmetamorphic female, observations on the copepodid V, the premetamorphic female and ...
Thatcher, V.
core  

Fish, Corumbataí and Jacaré-Pepira river basins, São Paulo State, Brazil [PDF]

open access: yes, 2006
Fish were studied in two river basins (Corumbataí and Jacaré-Pepira) subjected to strong human pressure, in the interior of the State of São Paulo, southeastern Brazil.
Braga, F. M. S., Gomiero, L. M.
core  

Probabilistic meta-analysis of risk from the exposure to Hg in artisanal gold mining communities in Colombia [PDF]

open access: yes, 2014
Colombia is one of the largest per capita mercury polluters in the world as a consequence of its artisanal gold mining activities. The severity of this problem in terms of potential health effects was evaluated by means of a probabilistic risk assessment
Clavijo, Diana   +3 more
core   +2 more sources

Cytogenetic and DNA barcoding reveals high divergence within the trahira, Hoplias malabaricus (Characiformes: Erythrinidae) from the lower Amazon River

open access: yesNeotropical Ichthyology
Molecular and cytogenetic data have provided evidence of cryptic speciation in the widespread South American trahira, Hoplias malabaricus. In the present study, karyotypes and DNA barcode sequences of specimens from seven populations inhabiting the lower
Diego Ferreira Marques   +4 more
doaj   +1 more source

Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil

open access: yesNeotropical Ichthyology, 2011
The lacustrine system of the middle rio Doce basin is considered a paradigm of Pleistocene geomorphology. In these lakes, two Hoplias malabaricus karyomorphs (2n = 42A and 2n = 42B) live in sintopy in Carioca Lake.
Uedson Pereira Jacobina   +2 more
doaj  

Different feeding habits influence the activity of digestive enzymes in freshwater fish

open access: yesCiência Rural
: The aim of this study was to verify the activity of some digestive enzymes in four fish species with different feeding habits. Knowledge of these enzymatic activities can help us to understand the species' digestive processes.
Carolina Rosa Gioda   +8 more
doaj   +1 more source

Alimentacao do tucunare Cichla sp. (Pisces, cichlidae) um peixe introduzido no Pantanal, Brasil. [PDF]

open access: yes, 2015
Com o objetivo de estudar a alimentacao do tucunare (Cichla sp.) no Pantanal, foram realizadas cinco coletas entre novembro/1992 e junho/1994. Foram capturados 425 especimes, destes 207 apresentaram conteudo estomacal.
CATELLA, A. C.   +2 more
core   +1 more source

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