Results 81 to 90 of about 1,459,368 (181)

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

Beyond Hard Parts: Metabarcoding Advances Dietary Resolution in Threatened Amazonian Elasmobranchs

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Elasmobranchs are highly vulnerable and are considered one of the most threatened vertebrates worldwide. Insights into diet can improve conservation measures. The bias of traditional morphological methods towards taxa with distinctive hard parts makes metabarcoding analysis a complementary tool to assess diet composition. Here, we analysed the
Alan Érik S. Rodrigues, Cintia Oliveira Carvalho, Jorge Luiz S. Nunes, Rafaela Maria S. Brito, Marcelo Ândrade, Carolina Oliveira Magalhães, Fabrício dos Anjos Santa Rosa, Audun Schrøder‐Nielsen, Hugo J. de Boer, Quentin Mauvisseau, Jonathan S. Ready, João Bráullio L. Sales   +11 more
wiley   +1 more source

Recommended practices for disease prevention in prawn and shrimp hatcheries [PDF]

, 1989
Disease in prawn is any abnormal condition which may affect adversely the appearance, growth, and function of the animal. It may or may not result in mortalities.
Cruz, E.R., Fernandez, R.D., Baticados, M.C.L., Lio-Po, G.D., Llobrera, A.T.   +4 more
core   +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

Transportation of Amazon river prawnMacrobrachium amazonicumjuveniles in different biomass densities

Aquaculture Research, 2012
The Amazon river prawn Macrobrachium amazonicum is widely exploited by artisanal fisheries in the north and north-east of Brazil (Maciel & Valenti 2009). Currently, this species has important potential for aquaculture where it is indigenous (Moraes-Valenti & Valenti 2010; Marques & Moraes-Valenti 2012).
Sperandio, Luciane, New, Michael Bernard, Valenti, Wagner Cotroni   +2 more
openaire   +2 more sources

'Life on the River' - Sepik and Amazon: Ambonwari and Murui [PDF]

, 2017
The lives of the Ambonwari people of Papua New Guinea in the Sepik and Murui people of Colombia in the Amazon are both defined and made possible by the rivers on which they live their days.
Wojtylak, Katarzyna, Vavrova, Daniela, Lupinski, Thomas Zachary   +2 more
core  

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

Effect of tank colour on larval performance of the Amazon River prawnMacrobrachium amazonicum

Aquaculture Research, 2012
The aim of this study was to evaluate the effects of hatchery-tank colours (white, yellow, red, blue, green and black) on the performance of larval culture of Macrobrachium amazonicum. The larvae were fed daily with newly hatched Artemia nauplii. The hatchery-tank colours affected the light level inside the tanks, the consumption of Artemia nauplii (AN)
Maciel, Cristiana Ramalho, Valenti, Wagner C.   +1 more
openaire   +2 more sources

STOCKING DENSITY TO PRODUCE FRESHWATER ANGELFISH POLYCULTURED IN PONDS WITH AMAZON RIVER PRAWN

, 2014
The aim of this study was to evaluate the production of Freshwater Angelfish (Pterophyllum scalare) in different stocking densities in cages polycultured with Amazon River Prawn (Macrobrachium amazonicum).
Silva Ribeiro, Felipe de Azevedo, Kochenborger Fernandes, Joao Batista, Jorge, Paulo Henrique, Sakomura, Nilva Kazue   +3 more
core  

Características limnológicas da coluna d'água e dos efluentes de viveiros de criação de camarões-da-amazônia Limnological characteristics of the water column and effluents of Amazon river prawn ponds

Revista Brasileira de Zootecnia, 2010
Os objetivos neste trabalho foram caracterizar os efluentes de viveiros de Macrobrachium amazonicum criados em diferentes densidades de cultivo e analisar a variação nictemeral (24 horas) do perfil vertical da temperatura e da saturação de oxigênio da ...
Gustavo Gonzaga Henry-Silva, Antonio Fernando Monteiro Camargo, Cibele Soares Pontes, Leonardo Kazuya Miyase   +3 more
doaj   +1 more source