Results 31 to 40 of about 2,474 (181)
Diversity, 2023 We used a combination of morphological, molecular and biological data to characterize a novel Henneguya (Myxozoa) species infecting the Amazonian prochilodontid Semaprochilodus insignis or “kissing prochilodus”, a popular food fish and aquarium species ...
Maria I. Müller +4 more
doaj +1 more source
Environmental DNA, Volume 5, Issue 6, Page 1589-1607, November 2023., 2023 We assessed the performance of 22 DNA metabarcoding primer sets for detecting 103 species of marine and freshwater bony fishes, elasmobranchs, cephalopods, and crustaceans. We find that a portfolio of four markers targeting 12S, 16S, and multiple regions of COI identifies all reference taxa to family and nearly 60% to species.
Diana S. Baetscher +5 more
wiley +1 more source
Application of a deep learning image classifier for identification of Amazonian fishes
Ecology and Evolution, Volume 13, Issue 5, May 2023., 2023 To address the growing prevalence of large ecological datasets combined with a need for rapid species identification tools, we describe a novel application of a computer vision model, which is built to rapidly identify Amazonian fishes from captured image data.
Alexander J. Robillard +7 more
wiley +1 more source
Synapsis in supernumerary chromosomes of Prochilodus lineatus (Teleostei: Prochilodontidae) [PDF]
Caryologia, 1998 Summary Meiotic analysis performed on a sample of 10 specimens of Prochilodus lineatus revealed continuous filaments of different sizes stained by AgNO3, corresponding to the bivalent of the normal complement. Small supernumerary chromosomes were observed as isolated and well stained bodies, scattered among the other elements.
Dias, Ana Lúcia +2 more
openaire +3 more sources
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 +3 more
wiley +1 more source
Evolutionary Applications, Volume 16, Issue 4, Page 895-910, April 2023., 2023 Abstract The human activity impact on wild animal populations is indicated by eco‐evolutionary and demographic processes, along with their survival and capacity to evolve; consequently, such data can contribute toward enhancing genetic‐based conservation programs.
Sandra Ludwig +3 more
wiley +1 more source
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 +15 more
wiley +1 more source
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 31, Issue 5, Page 1136-1149, May 2021., 2021 Abstract The extent and intensity of impacts of multiple new dams in the Amazon basin on specific biological groups are potentially large, but still uncertain and need to be better understood. It is known that river disruption and regulation by dams may affect sediment supplies, river channel migration, floodplain dynamics, and, as a major adverse ...
Edgardo M. Latrubesse +8 more
wiley +1 more source
Microplastics in freshwater fishes: Occurrence, impacts and future perspectives
Fish and Fisheries, Volume 22, Issue 3, Page 467-488, May 2021., 2021 Abstract Microplastics (MPs) are small, plastic particles of various shapes, sizes and polymers. Although well studied in marine systems, their roles and importance in freshwater environments remain uncertain. Nevertheless, the restricted ranges and variable traits of freshwater fishes result in their communities being important receptors and strong ...
Ben Parker +3 more
wiley +1 more source
Cryogenic preservation of embryos ofProchilodus lineatus(Valenciennes, 1836) (Characiforme; Prochilodontidae) [PDF]
Zygote, 2009 SummaryWhile the freezing techniques of mammal embryos have been providing promising results, the cryopreservation of teleostean eggs and embryos have remained unsuccessful up to now. Therefore, this work aimed to develop a procedure of cryogenic preservation of embryos ofProchilodus lineatusand to observe, at both structural and ultrastructural levels,
Ninhaus-Silveira, Alexandre +4 more
openaire +4 more sources