Results 31 to 40 of about 1,719 (133)

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

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

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

Molecular phylogeny of the Myxobolus and Henneguya genera with several new South American species. [PDF]

PLoS ONE, 2013
The present study consists of a detailed phylogenetic analysis of myxosporeans of the Myxobolus and Henneguya genera, including sequences from 12 Myxobolus/Henneguya species, parasites of South American pimelodids, bryconids and characids.
Mateus Maldonado Carriero, Edson A Adriano, Márcia R M Silva, Paulo S Ceccarelli, Antonio A M Maia   +4 more
doaj   +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

Sperm morphology and morphometry of neotropical catfishes: Pseudoplatystoma reticulatum, Pseudoplatystoma corruscans, Phractocephalus hemioliopterus, and Hemisorubim platyrhynchos [PDF]

Brazilian Journal of Biology
The objective of this study was to describe the morphological and morphometric characteristics of spermatozoa from four native fish species using a descriptive approach.
N. G. Leite, J. A. Povh, D. P. Streit-Junior, D. H. Siqueira-Silva, L. N. Spica, R. Y. D. Kasai, E. A. Sanches, N. M. Lopera-Barrero   +7 more
doaj   +2 more sources

Digenea in the surubim Pseudoplatystoma corruscans (Spix and Agassiz, 1829) (Siluriformes: Pimelodidae) of the upper São Francisco River, State of Minas Gerais, Brazil

Brazilian Archives of Biology and Technology, 2008
The specimens of surubim, Pseudoplatystoma corruscans (Spix and Agassiz, 1829), an important food fish with high commercial value in the Upper São Francisco River, were collected downstream from the Três Marias Dam, in the municipality of Três Marias ...
Renata de Fátima da Silva Stravalli Corrêa, Marilia de Carvalho Brasil-Sato   +1 more
doaj   +1 more source

Hybrids between Pseudoplatystoma corruscans and P. reticulatum (Siluriformes: Pimelodidae) previously reported in the Upper Paraná River are likely escapes from aquaculture farms: evidence from microsatellite markers

Zoologia (Curitiba), 2016
The production of hybrids of the 'pintado', Pseudoplatystoma corruscans (Spix & Agassiz, 1829) and 'cachara', Pseudoplatystoma reticulatum (Eigenmann & Eigenmann, 1889) in captivity has generated many concerns about the possibility of introduction of ...
Rafael A. Baggio, Caroline B. Moretti, Andréa Bialetzki, Walter A. Boeger   +3 more
doaj   +1 more source

Host-parasite relationship during Epistylis sp. (Ciliophora: Epistylididae) infestation in farmed cichlid and pimelodid fish [PDF]

Pesquisa Agropecuária Brasileira, 2016
: The objective of this work was to describe the host-Epistylis sp. relationship during infestation on farmed fish. Five Nile tilapia (Oreochromis niloticus) and ten hybrid surubim catfish (Pseudoplatystoma reticulatum x P.
Santiago Benites de Pádua, Maurício Laterça Martins, Gustavo Moraes Ramos Valladão, Laura Utz, Fernando José Zara, Márcia Mayumi Ishikawa, Marco Antonio de Andrade Belo   +6 more
doaj   +1 more source

Structure and diversity of endoparasitic infracommunities and the trophic level of Pseudoplatystoma corruscans and Schizodon borelli (Osteichthyes) of the high Paraná river

Memorias do Instituto Oswaldo Cruz, 1996
One hundred and ten specimens of Pseudoplatystoma corruscans (Pimelodidae) and 582 specimens of Schizodon borelli (Anostomidae) collected in the high Paraná River were analyzed. On necropsy 74% of P.
Marion Haruko Machado, Gilberto Cezar Pavanelli, Ricardo Massato Takemoto   +2 more
doaj   +1 more source