Results 71 to 80 of about 1,763 (196)
La pêche crevettière de Macrobrachium amazonicum (Palaemonidae) dans le Bas-Tocantins après fermeture du barrage de Tucurui (Brésil) [PDF]
En septembre 1984, le grand barrage de Tucuri (Para, Brésil) a été fermé sur le Tocantins, dernier affluent de la rive droite de l'Amazone. La crevette #Macrobrachium amazonicum$ (Heller, 1862) exploitée artisanalement avec des casiers, des palissades et
Odinetz Collart, Olga
core
Exploring Marine Mammal Cognition as a Conservation Tool
ABSTRACT Cognition is an animal's real‐time adaptation system for responding to change. Rapid environmental change, often anthropogenic, is expanding the range and severity of challenges confronting wild animals. Effective conservation requires a multifaceted approach that includes animals' capacities.
Gordon B. Bauer +21 more
wiley +1 more source
Nitrogen Budget in Yellow-Tail Lambari Monoculture and Integrated Aquaculture
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 +7 more
doaj +1 more source
Effect of tank colour on larval performance of the Amazon River prawnMacrobrachium amazonicum
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 +1 more
openaire +2 more sources
Chemical Composition, Antioxidant, and Antibacterial Activities of Mezilaurus duckei (Lauraceae)
ABSTRACT Mezilaurus duckei, a Brazilian endemic tree species found exclusively in the Amazon Rainforest, is primarily exploited for timber in construction. Due to its endangered status, this study aimed to investigate the chemical profile and biological properties of the ethanolic extract and its phases derived from M. duckei leaves. Chemical profiling
Bruna S. Moroto +7 more
wiley +1 more source
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 +3 more
doaj +1 more source
Величина пищевого рациона и его усвояемость у десятиногих ракообразных [PDF]
Десятиногие ракообразные (отряд Dekapoda) являются важнейшими элементами пищевых цепей водных экосистем. Это ресурсные виды, которые традиционно ценятся на внутреннем и особенно мировом рынке как превосходный деликатесный продукт питания, а также сырье ...
Кулеш, Виктор Федорович
core
Dead Shrimp Blues: A Global Assessment of Extinction Risk in Freshwater Shrimps (Crustacea: Decapoda: Caridea) [PDF]
We present the first global assessment of extinction risk for a major group of freshwater invertebrates, caridean shrimps. The risk of extinction for all 763 species was assessed using the IUCN Red List criteria that include geographic ranges, habitats ...
Adeler, Nils A. +13 more
core +4 more sources
Effluent discharges from aquaculture can reduce water quality in receiving water bodies and that strategies or practices to reduce this are necessary. One possibility is to reduce, or eliminate, water renewal in grow-out ponds. In this study, we eliminated water renewal in grow-out ponds associated with the culture of 40 individuals m−2 of Amazon river
Oliveira Santos, Alexandre Augusto +1 more
openaire +2 more sources
Abstract A significant quantity of soil organic carbon (SOC) is buried in mangrove ecosystems. However, recent research has revealed that substantial amounts of carbon are exported to the atmosphere as CO2 or to the ocean as dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), and particulate organic carbon (POC).
Wataru Nakamura +8 more
wiley +1 more source

