Results 21 to 30 of about 241 (137)
Transferability of heterologous primers in Brycon falcatus [PDF]
The genusBryconcomprises fish species of significant socioeconomic and biological importance in Brazil. Despite that, the genetic knowledge about these species is scarce, especially regardingBrycon falcatus.
Diego dos Santos PENHA +9 more
doaj +1 more source
The performance of a taxonomy‐free approach using ASV/MOTUs was not as precise as assigning DNA reads to species using a curated 12S library that includes approximately 100 fish species since more than one ASV/MOTU was observed for the same specimen.
Heron Oliveira Hilário +3 more
wiley +1 more source
People need freshwater biodiversity
Freshwater biodiversity (i.e., plants, animals, fungi, microbes, and other living things) provides a suite of critical ecosystem services to people. Collapses in freshwater biodiversity impact people, across all regions of the globe, rural–urban gradients, and the full socioeconomic spectrum, but perhaps most particularly indigenous and marginalized ...
Abigail J. Lynch +21 more
wiley +1 more source
A meta‐analytic review of monoterpene for fish anaesthesia
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 +3 more
wiley +1 more source
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 +15 more
wiley +1 more source
Atresia of ovarian follicles in fishes, and implications and uses in aquaculture and fisheries
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 +3 more
wiley +1 more source
eDNA in a bottleneck: Obstacles to fish metabarcoding studies in megadiverse freshwater systems
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 +8 more
wiley +1 more source
Heavy metals are considered major pollutants of aquatic environments due to the difficulty of metabolization and the bioaccumulative potential in tissues of aquatic organisms, especially fish muscle that is often used as food worldwide. In addition to causing cell damage, some metals such as aluminium (Al), cadmium (Cd), copper (Cu), and lead (Pb) can ...
A.L. Paschoalini +4 more
openaire +2 more sources
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 +2 more
doaj +1 more source
Transferability of heterologous microsatellite primers in Brycon gouldingi
: 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 +6 more
doaj +1 more source

