Results 51 to 60 of about 3,959 (200)

Ecotoxicological tests with cadmium and chromium using postlarvae of silverside Odontesthes (Austromenidia) regia regia Hildebrand

Revista Peruana de Biología, 2014
In the present paper, the mean effective concentrations (EC50%) of cadmium (Cd+2) and chromium (Cr+6) using postlarvae of the silverside fish Odontesthes (Austromenidia) regia regia were determined. The postlarvae were exposed to different concentrations
Giovana Vera, Jorge Tam, Víctor Vera, Edwin Pinto   +3 more
doaj   +1 more source

Effects of Environmentally Relevant Concentrations of Roundup on Oxidative‐Nitrative Stress, Cellular Apoptosis, Prooxidant‐Antioxidant Homeostasis, Renin and CYP1A Expressions in Goldfish: Molecular Mechanisms Underlying Kidney Damage During Roundup Exposure

Environmental Toxicology, Volume 40, Issue 5, Page 817-834, May 2025.
ABSTRACT Roundup is one of the most widely used glyphosate‐based harmful herbicides in the United States as well as globally, which poses a severe risk for terrestrial and aquatic organisms. In order to identify the detrimental effects of Roundup exposure in aquatic organisms, we investigated the environmentally relevant concentrations of Roundup ...
Md Imran Noor, Md Saydur Rahman
wiley   +1 more source

The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis Importância do cortisol na aclimatação a salinidade em peixe-rei Odontesthes bonariensis

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
The role of cortisol on the osmoregulation of pejerrey Odontesthes bonariensis at different salinities was investigated in adult fish injected with 0.7mg hydrocortisone per 100g body weight of fish, and transferred to 0, 5 and 20ppt of NaCl.
M.Y. Tsuzuki, K. Ogawa, C.A. Strüssmann, M. Maita, F. Takashima, C.M.R. Melo   +5 more
doaj   +1 more source

Bibliografía argentina de peces de agua dulce. [PDF]

, 2006
Espanol: En la presente lista bibliográfica fueron recopiladas las referencias sobre los peces continentales de la Argentina, del período comprendido entre mediados del siglo XVIII y fines del año 2005.
Cuello, Mariela V., Ferriz, Ricardo A., López, Hugo Luis, Menni, Roberto C., Ponte Gómez, Justina   +4 more
core  

Problems with combining modelling and social science approaches to understand artisanal fisheries bycatch

Diversity and Distributions, Volume 31, Issue 3, March 2025.
Abstract Aim Artisanal fisheries account for 40% of the world's fisheries catch, yet its environmental impacts remain poorly understood. This is especially the case in developing countries. In this study, we sought to integrate Local Fisher's Knowledge with distribution modelling to estimate the annual bycatch of Titicaca Grebe (Rollandia microptera ...
Daniel A. Villar, Edwin R. Gutiérrez Tito, Paola Velásquez‐Noriega, Anahi Cosky Paca‐Condori, Edmundo G. Moreno Terrazas, Alfredo Balcón Cuno, Ronald Hinojosa Cárdenas, Carmen Villanueva, Patrick Chapman, Luca Chiaverini, Jorgelina Marino, Andrew G. Gosler   +11 more
wiley   +1 more source

Aspectos biológico-pesqueros del pejerrey (Odontesthes regia regia) en el puerto de Ilo durante 1996-1998

Revista Peruana de Biología, 2014
Se analizaron los aspectos biológicos y pesqueros del pejerrey peruano (Odontesthes regia regia) población en Ilo, desde enero de 1996 a septiembre de 1998. Las capturas fueron tres veces más alta (72,76 t) que las de 1996 hasta 1997, mientras que con el
Hugo Treviño, Walter Condori, Martín Zambrano   +2 more
doaj   +1 more source

Crecimiento del pejerrey, Odontesthes bonariensis (Pisces, Atheriniformes) en el embalse La Florida, San Luis, Argentina [PDF]

, 1991
La croissance du pejerrey #Odontesthes bonariensis$ d'un lac de barrage de la zone néotropicale (33°08'S, 66° O) est décrite à partir d'échantillons obtenus avec des filets maillants.
Mestre Arceredillo, J.P., Sverlij, S.B.
core  

Biological traits and growth patterns of pejerreyOdontesthes argentinensis

Journal of Fish Biology, 2012
This study assesses for the first time the relationship between annual cycles of different biological indices with growth patterns of a marine pejerreyOdontesthes argentinensispopulation near its southern‐distribution boundary in North Patagonia. The reproductive period is between September and November evidenced by an increase in the gonado‐somatic ...
Llompart, Facundo Manuel, Colautti, Dario César, Maiztegui, Tomás, Cruz Jiménez, Adriana Milena, Baigún, Claudio Rafael M.   +4 more
openaire   +3 more sources

Sperm Quality, Milt Biochemistry, and Cellular Ultrastructure in Fresh and Cryopreserved Sperm of Brycon amazonicus

Aquaculture Research, Volume 2025, Issue 1, 2025.
Milt cryopreservation facilitates native fish’s constant production of commercial interest. However, it can damage spermatozoa (sptz) due to the osmotic stress of diluents and low temperatures. This study compares spermatic quality in fresh (SF) and cryopreserved (CS) milt in B. amazonicus for 24 h, 1 month, and 3 months.
Owens José Barros-Barrios, Roger Oswaldo Suárez-Martínez, Edwin Gómez-Ramírez, Diana Nathalie Guaje-Ramírez, Víctor Mauricio Medina-Robles   +4 more
wiley   +1 more source

Otolith and vertebral morphology of marine atherinid species (Atheriniformes, Atherinopsidae) coexisting in the southwestern Atlantic Ocean

Ciencias Marinas, 2010
Studies on marine ecosystems rely on the identification of fish prey species of piscivores (fish, aquatic mammals, and aquatic birds) based on their bones and otoliths. The stomach contents of piscivores show predation on marine atherinids of commercial
A D Tombari, A Gosztonyi, D D Echeverría, A V Volpedo   +3 more
doaj   +1 more source