Results 61 to 70 of about 188 (152)

Nitrogen Budget in Yellow-Tail Lambari Monoculture and Integrated Aquaculture

Fishes
This study quantified nitrogen (N) inputs by water, feed, animals, and atmospheric gas and outputs by water, harvested animals, sediments, and gas emissions in earthen ponds used for the monoculture and integrated cultures of yellow-tail lambari ...
Dalton Belmudes, Andre Z. Boaratti, Paulo V. L. Mantoan, Aline M. Marques, Julia R. C. Ferreira, Patricia Moraes-Valenti, Dallas L. Flickinger, Wagner C. Valenti   +7 more
doaj   +1 more source

Comparing Freshwater eDNA With Conventional Survey Methods to Detect Vertebrate Biodiversity in a Malagasy Tropical Rainforest

Environmental DNA, Volume 8, Issue 3, May–June 2026.
This study compares the efficacy of conventional surveys of vertebrate taxa to eDNA metabarcoding of freshwater samples from a tropical rainforest ecosystem in the Makira Forest Protected Area (MFPA), Madagascar. We demonstrate high but taxa‐varying efficacy of eDNA metabarcoding detections, reinforcing its use as a complementary biodiversity survey ...
Christina Biggs, Cosmo Le Breton
wiley   +1 more source

The influence of environmental variables in the reproductive performance of Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae) females in a continental population

Anais da Academia Brasileira de Ciências
Macrobrachium amazonicum is a commercially important freshwater prawn with a high degree of reproductive plasticity. The species is classified into two groups: coastal populations, with larger individuals exhibiting high fecundity and needing brackish ...
JOÃO ALBERTO F. PANTALEÃO, ABNER CARVALHO-BATISTA, SARAH S.A. TEODORO, ROGÉRIO C. COSTA   +3 more
doaj   +1 more source

American manatees adjust their diet composition and trophic niche breadth across different coastal regions

Limnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract Marine mammals can exhibit high plasticity in foraging strategies, but how such plasticity is driven by environmental conditions is poorly understood. The American manatee (Trichechus manatus), a large, endangered herbivore, inhabits marine, estuarine, and freshwater environments.
Camila Carvalho de Carvalho, Emma Deeks, Leandro L. Ciotti, Silvina Botta, Miriam Marmontel, Margareth Copertino, Fábia de Oliveira Luna, Fernanda Niemeyer Löffer Attademo, Vitor Luz Carvalho, João Carlos Gomes Borges, Alexandra Fernandes Costa, Renata Emin‐Lima, Pavel Kratina, Eduardo Resende Secchi   +13 more
wiley   +1 more source

Spatial distribution of the amazon river prawn Macrobrachium Amazonicum (Heller, 1862) (Decapoda, Caridea, Palaemonidae) in two perennial creeks of an estuary on the northern coast of Brazil (Guajará Bay, Belém, Pará) Distribuição espacial do camarão-da-amazônia - Macrobrachium Amazonicum (Heller, 1862) (Decapoda, Caridea, Palaemonidae) em dois canais perenes de um estuário da costa norte do Brasil (Baía do Guajará - Belém, Pará, Brasil)

Brazilian Journal of Biology, 2011
Macrobrachium amazonicum is the most frequently consumed freshwater crustacean by river communities of the Amazon. Despite its relative abundance and vast knowledge on the species from data on cultivated specimens, little is known regarding its biology ...
BS. Bentes, JM. Martinelli, LS. Souza, DV. Cavalcante, MC. Almeida, VJ. Isaac   +5 more
doaj   +1 more source

Effects of Intensification of the Amazon River Prawn, Macrobrachium amazonicum, Grow‐out on Effluent Quality [PDF]

Journal of the World Aquaculture Society, 2013
AbstractStudies to determine suitable levels of intensification are essential for developing sustainable aquaculture. The objective of this study was to evaluate the quality of effluents discharged from ponds stocked with 10 (D10), 20 (D20), 40 (D40), and 80 (D80) postlarvae of Macrobrachium amazonicum/m2.
Kimpara, Janaina Mitsue, Moraes-Valenti, Patricia, Queiroz, Julio F., New, Michael Bernard   +3 more
openaire   +2 more sources

Aquatic and Terrestrial Invertebrates Support Fish Assemblages of Amazonian Streams

Freshwater Biology, Volume 71, Issue 5, May 2026.
ABSTRACT The Amazonian stream network is remarkable not only for its extent but also for its rich fish diversity. These streams are interconnected with the surrounding forests. However, key ecological aspects of Amazonian freshwater ecosystems, such as energy flows and carbon sources sustaining fish assemblages, remain poorly understood. In this study,
Pedro H. S. Basilio, Cecília G. Leal, Débora R. de Carvalho, Gabriel L. Brejão, Dennys H. C. Drager, Gilberto N. Salvador, Marcos A. Alves‐Filho, Vladimir E. Costa, Gabriel O. Ferraz, Gustavo S. Ferreira, Rafael P. Leitão, Luciano F. A. Montag, Jady V. A. S Santos, Everton C. Silva, Paulo S. Pompeu   +14 more
wiley   +1 more source

REPRODUCTIVE ASPECTS OF THE PRAWN Macrobrachium amazonicum IN A CONTINENTAL POPULATION LIVING DOWNSTREAM OF A HYDROELECTRIC DAM

Boletim do Instituto de Pesca, 2020
The migratory behavior of females of the freshwater prawn Macrobrachium amazonicum (Heller, 1862) can indicate a strategy that optimizes the population establishment. With this idea in mind, we evaluated the reproductive biology of M.
Lubia Maciel MIRANDA, Larissa Rosa RODRIGUES, João Alberto Farinelli PANTALEÃO, Luciana Segura de ANDRADE   +3 more
doaj  

The Fragmented Landscape of Shrimp Life Cycle Assessments: Uncovering Methodological Dependence and Analytical Blind Spots

Reviews in Aquaculture, Volume 18, Issue 2, March 2026.
Reported environmental impacts of shrimp aquaculture from life cycle assessments (LCAs) vary by over fiftyfold. These discrepancies stem from methodological inconsistencies, which often outweigh actual differences in farming practices. Furthermore, areas of environmental concern including land use change, biodiversity, and toxicity impacts are excluded
Alena Calvo, Patrik J. G. Henriksson, E. J. Milner‐Gulland, Henry Travers, Joseph Poore   +4 more
wiley   +1 more source

Climate Change Will Enhance Hypercapnic Hypoxia Threatening Mangrove Habitats

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Mangroves host many marine species and support fisheries in developing (sub)tropical countries. The suitability of mangrove habitats depends strongly thier the water chemistry. Here, we show how global warming and rising atmospheric CO2 will reduce dissolved oxygen and increase CO2 in mangrove waters.
Gloria M. S. Reithmaier, Ariel K. Pezner, Adam Ulfsbo, Frank Melzner, Isaac R. Santos   +4 more
wiley   +1 more source