Results 11 to 20 of about 3,522 (144)

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

J Fish Biol, 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 ...
Aguirre WE, Alvarez-Mieles G, Anaguano-Yancha F, Burgos Morán R, Cucalón RV, Escobar-Camacho D, Jácome-Negrete I, Jiménez Prado P, Laaz E, Miranda-Troya K, Navarrete-Amaya R, Nugra Salazar F, Revelo W, Rivadeneira JF, Valdiviezo Rivera J, Zárate Hugo E.   +15 more
europepmc   +2 more sources

Feeding habits and trophic level of the Panama grunt Pomadasys panamensis, an important bycatch species from the shrimp trawl fishery in the Gulf of California. [PDF]

ScientificWorldJournal, 2014
The Panama grunt is an abundant and commercially important species in the southeastern Gulf of California, but the research undertaken on this species is scarce despite its ecological and economic importance. We studied the feeding habits of Panama grunt through stomach content analyses as a first step towards understanding the biology of this species ...
Rodríguez-Preciado JA, Amezcua F, Bellgraph B, Madrid-Vera J.   +3 more
europepmc   +2 more sources

Humoral and haemocytic responses of Litopenaeus vannamei to Cd exposure. [PDF]

ScientificWorldJournal, 2014
White shrimp, Litopenaeus vannamei, subadults were exposed to four dilutions of the 96 h cadmium LC50 reported for postlarvae (PL12) of this species, and the effects were evaluated after 5, 48, and 96 h of exposure. While treatments did not affect survival and hemolymph clotting time increased with time, but not as a response to Cd exposure, the ...
Bautista-Covarrubias JC, Velarde-Montes GJ, Voltolina D, García-de la Parra LM, Soto-Jiménez MF, Frías-Espericueta MG.   +5 more
europepmc   +2 more sources

Fisheries in a border area of the Moxos Lowlands (Bolivia) after invasion of Arapaima gigas

Aquaculture, Fish and Fisheries, Volume 3, Issue 2, Page 196-210, April 2023., 2023
We characterized fisheries in the area of the port city of Riberalta (upper Madeira River basin) and evaluated the contribution of an invasive species (Arapaima gigas) to the landings. A. gigas represented 57.6% of the overall economic value of fish in the region.
Gabriela Rico Lopez, Claudia Coca Méndez, Joachim Carolsfeld, Oriana Almeida, Paul Andre Van Damme   +4 more
wiley   +1 more source

Study of the Effect of Dietary Agavin Supplementation in Blood Parameters and Antioxidant Enzymes of Juvenile Nile Tilapia (Oreochromis niloticus) under Stress Conditions

Fishes, 2022
High-density aquaculture produces oxidative stress that affects fish welfare and leads to poor growth. Agavin is a fructan that regulates the antioxidant response and inhibits stress-related alterations in blood metabolites (cortisol and blood lipids ...
Lizeth Carolina Flores-Méndez, Cynthia E. Lizárraga-Velázquez, Erika Y. Sánchez-Gutiérrez, Javier Arrizon, Nayely Leyva-López, Crisantema Hernández   +5 more
doaj   +1 more source

Predicted Secretome of the Monogenean Parasite Rhabdosynochus viridisi: Hypothetical Molecular Mechanisms for Host-Parasite Interactions

Parasitologia, 2023
Helminth parasites secrete several types of biomolecules to ensure their entry and survival in their hosts. The proteins secreted to the extracellular environment participate in the pathogenesis and anthelmintic immune responses. The aim of this work was
Marian Mirabent-Casals, Víctor Hugo Caña-Bozada, Francisco Neptalí Morales-Serna, Alejandra García-Gasca   +3 more
doaj   +1 more source

Estimation of Growth and Size at First Maturity under a Multimodel Approach of Anadara tuberculosa (Sowerby, 1833) on the Southeast Coast of the Gulf of California

Journal of Marine Science and Engineering, 2023
The clam fishery in northwestern Mexico encompasses the mangrove cockle Anadara tuberculosa. It is extracted manually, at low tides and between the roots of mangroves. Biological samplings were carried out in Estero Las Lajitas, Sinaloa, from May 2021 to
Gilberto Genaro Ortega-Lizárraga, Maleny Lizárraga-Rojas, Lorenia Guadalupe Gómez-Medina, Juan Eduardo Guzmán-Ibarra, Horacio A. Muñoz-Rubí, Jaime Edzael Mendivil-Mendoza, Eugenio Alberto Aragón-Noriega   +6 more
doaj   +1 more source

Niveles de mercurio, cadmio, plomo y arsénico en peces del río Tumbes y riesgos para salud humana por su consumo

Revista del Instituto de Investigación de la Facultad de Minas, Metalurgia y Ciencias Geográficas, 2015
Siete especies comúnmente consumidas de peces (periche, dica, mojarra, chalaco, camotillo, lisa y sábalo) fueron colectadas del río Tumbes durante un año.
Diego Espinoza Ortiz, Sandra Falero Alama   +1 more
doaj   +1 more source

Digestive aspartic proteases from sábalo (Prochilodus lineatus): Characterization and application for collagen extraction [PDF]

, 2018
Acid proteases from sábalo stomach mucosa were recovered using salting-out procedure. This single step produced an enzyme extract purified 1.8-fold over the crude extract with a recovery of 45.1% of its initial proteolytic activity.
Acevedo Gomez, Antonella Valeria, Bustillo, Soledad, Chamorro, Ester Ramona, Gomez, Gabriela Noemi, Leiva, Laura Cristina Ana   +4 more
core   +1 more source

Estudio de la Microestructura y de las propiedades reológicas de geles de concentrado proteico de sabalo (prochilodus platensis ) en relación a la etapa de lavado con soluciones de H3PO4 y NaHCO

Nexo, 2013
El concentrado de proteínas de pescado (CPP) es el músculo del pescado desmenuzado y exento de huesos, piel,carne oscura y de espinas, que es lavado varias veces con agua y escurrido hasta la proporción de agua original.Aquí se estudió el efecto en la ...
María Agustina Reinheimer, José R. Medina, Luciana Beresvil, Gustavo A. Pérez   +3 more
doaj   +1 more source