Results 81 to 90 of about 1,763 (196)

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)

open access: yesBrazilian 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   +5 more
doaj   +1 more source

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead   +6 more
wiley   +1 more source

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

open access: yesBoletim 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   +3 more
doaj  

Состав пищи и пищевая избирательность пресноводных креветок в аквакультуре (обзор) [PDF]

open access: yes, 2010
Подходы к изучению питания пресноводных креветок отличаются большим разнообразием и зависят от особенностей самих животных и специфики их мест обитания.
Кулеш, Виктор Федорович
core  

Ontogenetic Variation in Ammonia Excretion during the Early Life Stages of the Amazon River Prawn, Macrobrachium amazonicum

open access: yesJournal of the World Aquaculture Society, 2010
Dry mass (DM) and total ammonia‐N (TAN) excretion were determined in embryos, larvae (ZI–ZIX, Z = zoea ), and postlarvae (PL) at 1, 7, and 14 d after metamorphosis (PL1, PL7, and PL14) of Macrobrachium amazonicum. Animals in postmolt–intermolt (A–C) stages were sorted according to their developmental stages, and placed into incubation chambers (∼ 30 ...
de Arruda Hayd, Liliam   +2 more
openaire   +4 more sources

Decapod Biodiversity Hotspots and Environmental Drivers: A Macroecological Approach About Bycatch Species in Brazil

open access: yesJournal of Biogeography, Volume 52, Issue 12, December 2025.
ABSTRACT Aim To investigate the spatial patterns of species richness (SR), phylogenetic diversity (PD) and phylogenetic endemism (PE) in bycatch decapod crustaceans along the Brazilian Exclusive Economic Zone and to assess the influence of environmental variables and trawling effort on these diversity indices. Location Brazilian Exclusive Economic Zone.
Jeniffer N. Teles   +1 more
wiley   +1 more source

Extreme Drought Restructures Floodplain Fish Assemblages Through Trait Convergence and Assembly Mechanism Shifts

open access: yesDiversity and Distributions, Volume 31, Issue 11, November 2025.
ABSTRACT Aim Extreme droughts, intensified by climate change, threaten floodplain ecosystems. However, the mechanisms underlying biotic responses remain insufficiently understood. We assessed drought‐induced changes in the taxonomic and functional structure of fish communities, identified key environmental and biotic drivers during the drought period ...
Yunzhe Huang   +7 more
wiley   +1 more source

The Influence of Habitat Heterogeneity and Human Disturbance on Trophic Interactions of Sebastiscus marmoratus and Scorpaenopsis cirrosa in Wanshan Archipelago

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
This study investigates how habitat heterogeneity and human activity shape trophic interactions between two scorpionfish species (Sebastiscus marmoratus and Scorpaenopsis cirrosa) in China's Wanshan Archipelago. Stable isotope analysis revealed regional shifts in their diets (e.g., annelids to mollusks) and broader niche use by S.
Hongyu Xie   +11 more
wiley   +1 more source

Ecological studies of the aquatic soil invertebrates in three inundation forests of Central Amazonia

open access: yes, 1975
From January 1971 till August 1972 ecological studies were carried out on the aquatic macroinvertebrates of the benthos community of three Central-Amazonian inundation forests.
Irmler, U.
core  

Sensory systems and feeding behaviour of the giant freshwater prawn, Macrobrachium rosenbergii, and the marine whiteleg shrimp, Litopenaeus vannamei [PDF]

open access: yes, 2017
Information on the sensory basis of shrimp feeding provides the means for assessment of the effectiveness of food items in terms of smell, taste, size, and colour.
Gunzo Kawamura   +2 more
core  

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