Results 31 to 40 of about 716 (181)

Utilização do eugenol como anestésico para o manejo de juvenis de Pintado (Pseudoplatystoma corruscans) = The use of eugenol as an anaesthetic for the handling of Pintado juveniles (Pseudoplatystoma corruscans)

Acta Scientiarum: Biological Sciences, 2006
Neste trabalho, foi avaliada a eficiência do eugenol como anestésico em juvenis de pintado (Pseudoplatystoma corruscans) através de ensaios. No primeiro, os peixes (n=6) foram individualmente expostos a concentrações de 25, 50, 75, 100 mg L-1 de eugenol ...
Luiz Vítor Oliveira Vidal, Ricardo Castelo Branco Albinati, Ana Catarina Luscher Albinati, Gustavo Rodamilans de Mecêdo   +3 more
doaj   +1 more source

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin. [PDF]

J Fish Biol
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Pereira DAS, Reis RE, Fontoura NF.
europepmc   +2 more sources

Pseudoplatystoma corruscans (Spix & Agassiz, 1829) [PDF]

, 2011
Fil: Nadalin, Diego Oscar. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
Nadalin, Diego O., López, Hugo Luis, Oldani, Norberto Oscar   +2 more
openaire   +4 more sources

Diet-tissue discrimination factors of three neotropical freshwater fishes and a comparison of the trophic position

Journal of Limnology, 2023
The trophic discrimination factor (TDF) is a key parameter for stable isotope analysis and due to a lack of species-specific TDFs, mean universal values have been used, resulting in uncertainties about the trophic position of species and a call for more
Gislaine Iachstel Manetta, Matheus Maximilian Ratz Scoarize, Driele Delanira-Santos, Patrícia Almeida Sacramento, Vinícius de Andrade Urbano, Evanilde Benedito   +5 more
doaj   +1 more source

River Damming Impacts on Fish Habitat and Associated Conservation Measures

Reviews of Geophysics, Volume 61, Issue 4, December 2023., 2023
Abstract River damming has brought great benefits to flood mitigation, energy and food production, and will continue to play a significant role in global energy supply, particularly in Asia, Africa, and South America. However, dams have extensively altered global river dynamics, including riverine connectivity, hydrological, thermal, sediment and ...
Qiuwen Chen, Qinyuan Li, Yuqing Lin, Jianyun Zhang, Jun Xia, Jinren Ni, Steven J. Cooke, Jim Best, Shufeng He, Tao Feng, Yuchen Chen, Daniele Tonina, Rohan Benjankar, Sebastian Birk, Ayan Santos Fleischmann, Hanlu Yan, Lei Tang   +16 more
wiley   +1 more source

Dynamic Adaptive Environmental Flows (DAE‐Flows) to Reconcile Long‐Term Ecosystem Demands With Hydropower Objectives

Water Resources Research, Volume 59, Issue 7, July 2023., 2023
Abstract This study investigates how environmental flows (e‐flows) can be designed as dynamic operating policies to optimize long‐term economic and ecosystem performance in reservoir systems. The main goal is to provide e‐flow solutions that contribute to better preparedness and flexibility of hydro‐systems to face multiyear stress periods, reducing ...
Ana Paula Dalcin, Guilherme Fernandes Marques, Amaury Tilmant, Marcelo Olivares   +3 more
wiley   +1 more source

Molecular identification of Pseudoplatystoma sp. fish fillets by Multiplex PCR / Identificação molecular de filés de peixe Pseudoplatystoma sp. por PCR-Multiplex

Vigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia, 2014
Nuclear and mitochondrial genes were used as molecular markers for verifying the iden-tity of fish fillets marketed as pintado (Pseudoplatystoma corruscans).
Cátia Maria de Oliveira Lobo, Fábio Porto-Foresti, Fernanda Dotti do Prado, Renata Torrezan, Ângela Aparecida Lemos de Furtado, Carlos Adam Conte Junior, Eliane Teixeira Mársico   +6 more
doaj   +1 more source

Isotopic turnover in polar cod (Boreogadus saida) muscle determined through a controlled feeding experiment

Journal of Fish Biology, Volume 102, Issue 6, Page 1442-1454, June 2023., 2023
Abstract Polar cod (Boreogadus saida) is an important trophic link within Arctic marine food webs and is likely to experience diet shifts in response to climate change. One important tool for assessing organism diet is bulk stable isotope analysis. However, key parameters necessary for interpreting the temporal context of stable isotope values are ...
Amanda Fern Ziegler, Bodil A. Bluhm, Paul E. Renaud, Lis L. Jørgensen   +3 more
wiley   +1 more source

Sustainable management and improvement of genetic resources for aquaculture

Journal of the World Aquaculture Society, Volume 54, Issue 2, Page 364-396, April 2023., 2023
Abstract Effective genetic management of the ~700 aquatic species cultured globally should be addressed for aquaculture to make a significant contribution towards meeting the UN's Sustainable Development Goals. This article aims to identify the current status and challenges relating to the management of farmed aquatic genetic resources (AqGR) and to ...
A. K. Sonesson, E. Hallerman, F. Humphries, A. W. S. Hilsdorf, D. Leskien, K. Rosendal, D. Bartley, X. Hu, R. Garcia Gomez, G. C. Mair   +9 more
wiley   +1 more source

COMPARISON BETWEEN TWO FEEDING RATES AND THREE FEEDING FREQUENCIES FOR HYBRID SURUBIMS REARED IN CAGES

Revista Caatinga, 2018
This study evaluated the effects of feeding frequency and feeding rate on productive performance of hybrid surubims reared in cages with automatic feeding.
JULIANA SVERSUT DE ALEXANDRE BOGIANI, CECÍLIA SILVA DE CASTRO, EDUARDO MIYAMOTO FUKANOKI KUNII, LUCIANO CAETANO DE OLIVEIRA, CLAUDIO ANGELO AGOSTINHO   +4 more
doaj   +1 more source