Buscar recursos académicos

Materias / palabras clave: behavior, biodiversity, ecology, fish, sustainability, elasmobranchii; Agriculture: Aquaculture. Fisheries. Angling

Materias / palabras clave: Agriculture: Aquaculture. Fisheries. Angling

Materias / palabras clave: Agriculture: Aquaculture. Fisheries. Angling

Materias / palabras clave: Agriculture: Aquaculture. Fisheries. Angling

Materias / palabras clave: Agriculture: Aquaculture. Fisheries. Angling

Materias / palabras clave: Agriculture: Aquaculture. Fisheries. Angling; Science: Biology (General)

In order to assess the impact of sewage pollution on the diet of the strict detritivorous and migratory South American fish, Prochilodus lineatus, 16 sterol biomarkers were analyzed by gas chromatography-mass spectrometr...

A pesca na Amazônia representa uma importante atividade social, econômica e cultural, com desembarque de pescado estimado em 25 mil toneladas por ano, somente no terminal de desembarque de Manaus, porém com poucas ava...

A model for computing acoustic scattering by swimbladdered fish is presented. The effect of acoustic coupling between the fish tissue and the swimbladder is included. The swimbladder is considered a gas-filled object whe...

ABSTRACT In an experiment performed to characterize the reproductive behavior of the discus fish in captivity, couple formation with two females was observed. The observations were carried out in captivity, based on ad l...

Abstract Objective of the present study is to investigate the effect of coated edible films with chitosan solutions enriched with essential oil (EO) on the chemical, microbial and sensory properties of Kashar cheese duri...

ABSTRACT This study investigated the metazoan parasite fauna in Peckoltia braueri and Pterygoplichthys pardalis from a tributary of the Amazon River system, in northern Brazil. In P. braueri, 630 parasites were collected...

Widespread attention has been drawn to the underwater biomimetic robotic fish due to its excellent agility and little environmental disturbance. A hybrid-driven bionic robotic fish outfitted with dual-propeller thrusters...

In this note we demonstrate that the use of an index to standardize the fishing effort using the cpue of a standard vessel or gear is mistaken, once the cpues- catch per unit of total effort after standardization is simi...

Fish oil is a widely consumed nutritional supplement rich in ω-3 polyunsaturated fatty acids (PUFAs) and of high economic value, but it is susceptible to economically motivated adulteration, including the incorporation ...

Trace levels of three organophosphate insecticides (OPI) were detected in eight fish species from the region of Santarém, State of Pará, Brazil. Individual concentrations of OPI in fish ranged from less than the detect...

Two new genera and species of Paramphistomidae (Tremadota, Digenea) are described from freshwater fish of the Brazilian Amazon. Anavilhanatrema robustagen. et sp. nov. is characterized as having a cylindrical body with a...

Materias / palabras clave: Science

Abstract Estimating the quantum Fisher information (QFI) is a crucial yet challenging task with widespread applications across quantum science and technologies. The recently proposed Krylov shadow tomography (KST) opens ...

Trophic studies are key components in animal ecology and fisheries research. Although stomach samples are often obtained from fisheries, diet studies that consider the influence of fisheries on dietary results are still ...

tWe carried out a caging field experiment to assess the potential effects of an untreated sewage effluenton the health status of Prochilodus lineatus. We analyzed multiple biomarker responses, which includedmorphological...

New findings of early vertebrates, including placoderms, sarcopterygians, and the galeaspids Sanqiaspis rostrata, Macrothyraspis longicornis, Gantarostraspis gengi, Wenshanaspis sp., are described from Posongchong Format...

This article presents an agent-based model designed to explore the development of cooperation in hunter-fisher-gatherer societies that face a dilemma of sharing an unpredictable resource that is randomly distributed in s...

ABSTRACT Fisheries is an important activity in the Amazon basin and potentially has a high impact on ichthyofauna. With the aim of achieving sustainability in fisheries of target species, protected areas were established...