Results 21 to 30 of about 4,575 (138)

A meta‐analytic review of monoterpene for fish anaesthesia

Fish and Fisheries, Volume 24, Issue 3, Page 367-380, May 2023., 2023
Abstract The use of anaesthetic agents has been increasing to address the welfare needs of different fish species in scientific and aquaculture practices. MS‐222 is the most used synthetic anaesthetic but some limitations and side effects have been reported.
Luís Félix, Raquel Vieira, Sandra M. Monteiro, Carlos Venâncio   +3 more
wiley   +1 more source

Conservation threats and future prospects for the freshwater fishes of Ecuador: A hotspot of Neotropical fish diversity

Journal of Fish Biology, Volume 99, Issue 4, Page 1158-1189, October 2021., 2021
ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Windsor E. Aguirre, Gabriela Alvarez‐Mieles, Fernando Anaguano‐Yancha, Ricardo Burgos Morán, Roberto V. Cucalón, Daniel Escobar‐Camacho, Iván Jácome‐Negrete, Pedro Jiménez Prado, Enrique Laaz, Katherin Miranda‐Troya, Ronald Navarrete‐Amaya, Fredy Nugra Salazar, Willan Revelo, Juan F. Rivadeneira, Jonathan Valdiviezo Rivera, Edwin Zárate Hugo   +15 more
wiley   +1 more source

Atresia of ovarian follicles in fishes, and implications and uses in aquaculture and fisheries

Journal of Fish Diseases, Volume 44, Issue 9, Page 1271-1291, September 2021., 2021
Abstract Atresia of ovarian follicles, that is the degenerative process of germ cells and their associated somatic cells, is a complex process involving apoptosis, autophagy and heterophagy. Follicular atresia is a normal component of fish oogenesis and it is observed throughout the ovarian cycle, although it is more frequent in regressing ovaries ...
Aldo Corriero, Rosa Zupa, Constantinos C. Mylonas, Letizia Passantino   +3 more
wiley   +1 more source

eDNA in a bottleneck: Obstacles to fish metabarcoding studies in megadiverse freshwater systems

Environmental DNA, Volume 3, Issue 4, Page 837-849, July 2021., 2021
In this study, we evaluated the taxonomic resolution capabilities of a short fragment from the 12S rRNA gene that is widely used in fish eDNA metabarcoding studies, and then compared eDNA metabarcoding data from water samples collected in the Amazon with traditional sampling using nets.
Jake M. Jackman, Chiara Benvenuto, Ilaria Coscia, Cintia Oliveira Carvalho, Jonathan S. Ready, Jean P. Boubli, William E. Magnusson, Allan D. McDevitt, Naiara Guimarães Sales   +8 more
wiley   +1 more source

Impacts on fisheries assessed by local ecological knowledge in a reservoir cascade in the lower São Francisco River, northeastern Brazil

Neotropical Ichthyology, 2021
Our study assessed the fishers’ perception (local ecological knowledge, LEK) concerning environmental impacts on fisheries and fish species in the final portion of Sub-Middle and Lower São Francisco.
Thiago D’avilla, Eraldo M. Costa-Neto, Marcelo F. G. Brito   +2 more
doaj   +1 more source

Transferability of heterologous microsatellite primers in Brycon gouldingi

Ciência Rural, 2018
: Brycon gouldingi is a species of neotropical fish of socioeconomic and environmental importance in the Tocantins-Araguaia Basin. Genetic studies on this species are still limited, making it difficult to evaluate the population structure and genetic ...
Felipe Pinheiro de Souza, Ed Christian Suzuki de Lima, Natalia Gonçalves Leite, Angela Maria Urrea-Rojas, Andrei Lincoln Yamachita, Victor César Freitas Pandolfi, Nelson Mauricio Lopera-Barrero   +6 more
doaj   +1 more source

From gametogenesis to spawning: How climate‐driven warming affects teleost reproductive biology

Journal of Fish Biology, Volume 97, Issue 3, Page 607-632, September 2020., 2020
Abstract Ambient temperature modulates reproductive processes, especially in poikilotherms such as teleosts. Consequently, global warming is expected to impact the reproductive function of fish, which has implications for wild population dynamics, fisheries and aquaculture.
Maud Alix, Olav S. Kjesbu, Kelli C. Anderson   +2 more
wiley   +1 more source

Ictiofauna e pesca no entorno de Penedo, Alagoas

Biotemas, 2011
No baixo São Francisco, por intermédio de 28 meses de dados coletados, já é possível observar o cenário da pesca nesta região. A produção pesqueira é representada por cerca de 22 espécies, das quais cinco espécies são as mais comuns, Prochilodus ...
Emerson Carlos Soares, Arthur Murilo da Silva Sousa Bruno, Jonatha Melo Lemos, Robson Batista dos Santos   +3 more
doaj   +1 more source

Genética de populações de Prochilodus argenteus e P. costatus do médio São Francisco

, 2011
O Rio São Francisco forma uma das maiores bacias hidrográficas sulamericanas e vem sofrendo grandes impactos causados por ações antrópicas. A bacia conta com uma rica fauna de peixes, muitos de elevada importância para a pesca comercial e de subsistência.
Melo, Bruno Francelino de [UNESP]
core   +3 more sources

Caracterização de marcadores moleculares com aplicabilidade para identificação de duas espécies de peixe com interesse forense: Prochilodus argenteus e Prochilodus costatus [PDF]

, 2015
The increasing concern about environmental issues added to specific legislation aiming inhibition of environmental damage brought give rise to new challenges for forensic science.
Aline Torres de Azevedo Chagas
core   +1 more source