Results 31 to 40 of about 3,522 (144)

Amazonian fish migration as a social–cultural–ecological process

open access: yesPeople and Nature, Volume 7, Issue 12, Page 3297-3312, December 2025.
Abstract In this study, we highlight the rich perspectives and explanations of fish migration held by Indigenous groups across the Amazon. We present the aspects of Indigenous cosmological stories, drawing from our exploratory review of cultural ethnographies and grey literature, as well as the authors' own experiences. We ask, how do Amazonian peoples
LuLu Victoria‐Lacy   +6 more
wiley   +1 more source

Stock Reduction Analysis of Bigeye Croaker Micropogonias megalops in the Upper Gulf of California, Mexico

open access: yesFishes, 2022
A stock reduction analysis (SRA) of bigeye croaker Micropogonias megalops was performed based on commercial catch data. SRA solutions were restricted to a 2011 bigeye croaker stock biomass estimate of 14,412 t.
Ricardo Urías-Sotomayor   +5 more
doaj   +1 more source

Geoquímica del magmatismo mesozoico asociado al margen continental pasivo en el occidente y centro de Cuba [PDF]

open access: yes, 2016
Secuencias estratigráficas de Margen Continental Pasivo (MCP) han sido descritas en la región mesoamericana. En Cuba las mismas están representadas por rocas siliciclásticas y carbonatadas.
Cruz Gámez, Esther María   +5 more
core  

Aquaculture in Peru: Situation, Challenges and Prospects

open access: yesAquaculture, Fish and Fisheries, Volume 5, Issue 3, June 2025.
ABSTRACT Aquaculture in Peru is a sector with significant growth and development in recent years. However, it faces multiple challenges to ensure its sustainability. This study aims to characterize the Peruvian aquaculture system by analysing the public, private and educational stakeholders involved, as well as the productive, commercial and ...
Euler Dolores‐Salinas   +1 more
wiley   +1 more source

Assessment of sábalo (Prochilodus lineatus) fisheries in the lower Paraná River basin (Argentina) based on hydrological, biological, and fishery indicators

open access: yesNeotropical Ichthyology
This study assesses the change in fish exploitation patterns of the sábalo fisheries of the lower Paraná River basin based on hydrological, biological, and fishery indicators. From historical catch records, we recorded a shift from a lightly and moderate
Claudio Baigún   +2 more
doaj   +1 more source

Análisis financiero de una producción piloto del rotífero, Brachionus rotundiformis, con una dieta artificial.

open access: yesRevista de Investigaciones Marinas, 2023
Se realizó un estudio piloto de cultivo intensivo por lotes en ciclos de cuatro días de rotíferos pequeños, Brachionus rotundiformis Tschugunoff, 1921, para la alimentación de peces marinos, basado en el uso de Culture Selco Plus® como alimento y ...
Luis Alvarez-Lajonchére   +1 more
doaj  

Influencia de un probiótico comercial en el crecimiento y composición corporal del sábalo Brycon amazonicus (Characiformes: Bryconidae)

open access: yesRevista Peruana de Investigación Agropecuaria, 2023
Se evaluó la influencia de la adición dietaria del probiótico comercial EM® CAMARÓN en la alimentación de juveniles de sábalo Brycon amazonicus criados en corrales a una densidad de 1,1 pez/m3.
Kevin Morgan Ruiz-Tafur   +6 more
doaj   +1 more source

Long‐term interventions by conservation and development projects support successful recovery of tropical peatlands in Amazonia

open access: yesPeople and Nature, Volume 7, Issue 4, Page 871-886, April 2025.
Abstract Rural communities in Amazonia rely on harvesting Mauritia flexuosa fruit, a dominant peatland palm, for their subsistence and income. However, these palms are felled to harvest the fruits, which has led to reduced resource availability due to the pressure exerted by the increasing fruit demand.
Eurídice N. Honorio Coronado   +24 more
wiley   +1 more source

Efecto del Parque Nacional El Rey y de una crecida sobre peces de interés pesquero en un río subandino del noroeste de la Argentina

open access: yesEcología Austral, 2023
Ante la crisis global de pérdida de biodiversidad y deterioro de los ecosistemas, las áreas naturales protegidas tienen un rol preponderante como herramienta de manejo.
Alejo J. Irigoyen   +7 more
doaj   +1 more source

Evaluación de la calidad hidroquímica del Río San Juan y sus tributarios [PDF]

open access: yes, 1999
Se identificó que, entre los procesos que determinan la calidad hidroquímica, están la salinización e intercambio catiónico. Como elementos fundamentales de dichos procesos se destaca, el predominio de la precipitación en la dilución sobre el efecto ...
Calero Rocha, Sandra Emperatriz   +3 more
core  

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