Results 11 to 20 of about 3,004 (156)

Effect of handling and crowding on the susceptibility of Atlantic salmon (Salmo salar L.) to Lepeophtheirus salmonis (Krøyer) copepodids. [PDF]

J Fish Dis, 2021
Abstract Lepeophtheirus salmonis is an ectoparasite causing economic concerns in Atlantic salmon farming. Salmon lice infestation management methods can be stressful and impact fish welfare. This work investigated the stress effect on the attachment of L.
Delfosse C, Pageat P, Lafont-Lecuelle C, Asproni P, Chabaud C, Cozzi A, Bienboire-Frosini C.   +6 more
europepmc   +2 more sources

Integrative morphometric and molecular analyses reveal possible genetic contamination of silver catfish populations of the genus Rhamdia in Neotropical River basins. [PDF]

J Fish Biol
Abstract Rhamdia quelen, Rhamdia branneri and Rhamdia voulezi are morphologically similar species that, until recently, were considered synonymous. Although R. quelen has wide distribution in the Neotropical region, R. branneri and R. voulezi are sympatric and endemic species of the Iguaçu River basin.
Bignotto TS, de Souza HB, da Silva Bronzim RC, Maniglia TC, Baumgartner D.   +4 more
europepmc   +2 more sources

Effects of Low Concentration of Glyphosate-Based Herbicide on Genotoxic, Oxidative, Inflammatory, and Behavioral Meters in Danio rerio (Teleostei and Cyprinidae). [PDF]

Biochem Res Int
The glyphosate herbicide is a pesticide widely used in the world and can contaminate soil, air, and water. The objective of this work was to evaluate the toxicity of a glyphosate‐based herbicide (GBH) in zebrafish (Danio rerio). Fish were exposed to different concentrations of GBH (0, 50, 250, and 500 µg/L) for 96 hours.
Bortolon Ribas E, Colombo Dal-Pont G, Centa A, Bueno MO, Cervini R, Silva Ogoshi RC, Locatelli C.   +6 more
europepmc   +2 more sources

A Brief Review on Aflatoxicosis in Aquaculture With a Focus on Fish. [PDF]

Aquac Nutr
Feed quality is among the most determinative criteria for aquaculture success. Along with feed ingredient quality and its production process, feed storage conditions would also affect feed quality, especially in terms of adventitious toxins. Mycotoxins are frequent food and feed contaminants and are considered important health threats to both human and
Ziarati M, Imani A, Ghafarifarsani H, Bhatt D.   +3 more
europepmc   +2 more sources

Efficacy of various concentrations of synthetic hormones on the induced breeding of Channa marulius (Sole)

Journal of the World Aquaculture Society, Volume 54, Issue 1, Page 143-155, February 2023., 2023
Abstract A study was conducted to determine the artificial breeding response, embryonic and larval development of giant snakehead, Channa marulius, with the application of various dosages of stimulatory hormones: Suprefact® (LHRH) agonist and Ovaprim® (GnRH + dopamine inhibitor). First and second hormonal dosages of Suprefact® (diluted) and Ovaprim® (0.
Sadia Nazir, Noor Khan, Hamda Azmat, Saima Naveed, Malik Muhammad Ramzan, Simon J. Davies   +5 more
wiley   +1 more source

Effect of stocking density in plastic boxes without oxygenation on the transport of pirarucu, Arapaima gigas (Schinz, 1822)

Journal of the World Aquaculture Society, Volume 53, Issue 5, Page 1031-1041, October 2022., 2022
Abstract For the evaluation of the effects of the transport density of pirarucu juveniles, 210 juvenile pirarucus, Arapaima gigas (488 ± 26.5 g) were randomly distributed in 12 plastic boxes at transport densities of 98, 146, 195, and 244 g L−1. The transport was carried out on a paved highway for 4 h, and at the end of the transport, all were returned
Marcel J. M. Santos, Francisco O. Magalhães Jr., João V. Manhães, Itamar J. Soares Jr., Adenilson G. Silva, Ana P. Ramos, Marianne Schorer, Luis G. T. Braga   +7 more
wiley   +1 more source

The Amazon river is a suture zone for a polyphyletic group of co‐mimetic heliconiine butterflies

Ecography, Volume 44, Issue 2, Page 177-187, February 2021., 2021
The Amazon basin contains few obvious geographic barriers, yet it is the most biodiverse region on Earth. One hypothesis to explain its diversity is that the very large rivers promote allopatric divergence. Consistent with this, maps of heliconiine butterflies made from museum specimens show high subspecies richness close to the Amazon river ...
Neil Rosser, Leila T. Shirai, Kanchon K. Dasmahapatra, James Mallet, André V. L. Freitas   +4 more
wiley   +1 more source

Antioxidant Potential of Propolis, Bee Pollen, and Royal Jelly: Possible Medical Application

Oxidative Medicine and Cellular Longevity, Volume 2018, Issue 1, 2018., 2018
Honeybees products comprise of numerous substances, including propolis, bee pollen, and royal jelly, which have long been known for their medicinal and health‐promoting properties. Their wide biological effects have been known and used since antiquity.
Joanna Kocot, Małgorzata Kiełczykowska, Dorota Luchowska-Kocot, Jacek Kurzepa, Irena Musik, Kota V. Ramana   +5 more
wiley   +1 more source

Biologia do jundiá Rhamdia quelen (Teleostei, Pimelodidae) Biology of Rhamdia quelen (Teleostei, Pemelodidae)

Ciência Rural, 2000
O jundiá, Rhamdia quelen, é encontrado desde o centro da Argentina até o sul do México, e seu cultivo está aumentando no sul do Brasil. Portanto, o objetivo desta revisão é apresentar os dados existentes até o momento sobre a biologia dessa espécie.
Levy de Carvalho Gomes, Jaqueline Ineu Golombieski, Adriana Regina Chippari Gomes, Bernardo Baldisserotto   +3 more
doaj   +1 more source

Successful Cryopreservation of Spermatogonia Stem Cells of Neotropical Catfish (Rhamdia quelen) and Enriched Germ Cell Transplantation into Common Carp (Cyprinus carpio) Testes

Fishes, 2023
Cryopreservation and transplantation of spermatogonial stem cells (SSCs) offer new possibilities in the conservation of valuable genetic resources. Therefore, the present study developed a cryopreservation method for whole testicular tissue and for ...
Ivana F. Rosa, Emanuel R. M. Martinez, Melanie Digmayer, Lucas B. Doretto, Rafael H. Nóbrega   +4 more
doaj   +1 more source