Results 21 to 30 of about 1,536 (185)

Importance and spatial patterns of invisible fisheries in Amazonian clear-water rivers as revealed by fisher knowledge and collaboration. [PDF]

Conserv Biol
The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Silvano RAM, Vieira KC, Pereyra PER, Tomazoni-Silva LH, Alves IA, Bezerra JG, Dutra MCF, Keppeler FW, Nunes CB, Cunha CV, Hallwass G.   +10 more
europepmc   +2 more sources

Niche partitioning of two piscivorous fish species in a river in the western Brazilian Amazon

Iheringia: Série Zoologia, 2022
We analyzed the seasonal variation in the diet, trophic niche breadth (Levins index), the partitioning of food resources (Pianka’s symmetric index) and trophic level (weighed average of trophic level of each prey determined in FishBase and SeaLifeBase ...
Igor David da Costa, Natalia Neto dos Santos Nunes   +1 more
doaj   +1 more source

A relação entre o desenvolvimento do otólito e o crescimento do peixe como auxílio na distinção de populações de Pescada (Plagioscion squamosissimus) [PDF]

Acta Amazonica, 1979
Resumo Os otólitos de "Pescada branca" (Plagioscion squamosissimus) de 4 diferentes lagos e rios (lago do Janaucá, lago do Jari, rio Negro e rio Branco) foram investigados, considerando as relações de suas dimensões de otólitos e o comprimento do peixe ...
Heino Worthmann
doaj   +1 more source

The introduced Arapaima gigas in the Bolivian Amazon: Trophic position and isotopic niche overlap with native species

Ecology of Freshwater Fish, Volume 32, Issue 4, Page 926-937, October 2023., 2023
Abstract Non‐native fish species may generate major ecological impacts on native assemblages. This study aims to assess the potential impact of the introduced Arapaima gigas on native fish assemblages in two oxbow lakes of the Bolivian Amazon. Stable isotope data were used to determine trophic position (TP) and isotopic niche overlap, to evaluate ...
Danny Rejas, Thierry Oberdorff, Steven A. J. Declerck, Monika Winder   +3 more
wiley   +1 more source

Fisheries in a border area of the Moxos Lowlands (Bolivia) after invasion of Arapaima gigas

Aquaculture, Fish and Fisheries, Volume 3, Issue 2, Page 196-210, April 2023., 2023
We characterized fisheries in the area of the port city of Riberalta (upper Madeira River basin) and evaluated the contribution of an invasive species (Arapaima gigas) to the landings. A. gigas represented 57.6% of the overall economic value of fish in the region.
Gabriela Rico Lopez, Claudia Coca Méndez, Joachim Carolsfeld, Oriana Almeida, Paul Andre Van Damme   +4 more
wiley   +1 more source

Balancing protein and energy in Nile tilapia feeds: A meta‐analysis

Reviews in Aquaculture, Volume 14, Issue 4, Page 1757-1778, September 2022., 2022
Abstract Farmed fish are increasingly grown in intensive and semi‐intensive systems where most nutrients are provided by formulated feeds. These are formulated to minimise costs and optimise growth, notably the rate of muscle protein synthesis (i.e., fillet). Protein synthesis depends on the availability of amino acids (i.e., protein) and energy. Thus,
Gauthier D. P. Konnert, Walter J. J. Gerrits, Sander W. S. Gussekloo, Johan W. Schrama   +3 more
wiley   +1 more source

Re-evaluation of certain aspects of the EFSA Scientific Opinion of April 2010 on risk assessment of parasites in fishery products, based on new scientific data. Part 2. [PDF]

EFSA J
Abstract The objective of this opinion was to determine if any wild caught fish species, originating from specific fishing grounds and consumed in the EU/EFTA could be considered free of zoonotic parasites. In this Opinion the term ‘fishery products’ only refers to fresh finfish.
EFSA Panel on Biological Hazards (BIOHAZ), Allende A, Alvarez-Ordóñez A, Bortolaia V, Bover-Cid S, De Cesare A, Dohmen W, Guillier L, Herman L, Jacxsens L, Nauta M, Mughini-Gras L, Ottoson J, Peixe L, Perez-Rodriguez F, Skandamis P, Suffredini E, Buchmann K, Levsen A, Mattiucci S, Mladineo I, Santos MJ, Guerra B, Goudjihounde SM, Hempen M, Bolton D.   +25 more
europepmc   +2 more sources

Restoration Effects of the Riparian Forest on the Intertidal Fish Fauna in an Urban Area of the Amazon River. [PDF]

ScientificWorldJournal, 2016
Urbanization causes environmental impacts that threaten the health of aquatic communities and alter their recovery patterns. In this study, we evaluated the diversity of intertidal fish in six areas affected by urbanization (areas with native vegetation, deforested areas, and areas in process of restoration of vegetation) along an urban waterfront in ...
Sá-Oliveira JC, Ferrari SF, Vasconcelos HC, Mendes-Junior RN, Araújo AS, Costa-Campos CE, Nascimento WS, Isaac VJ.   +7 more
europepmc   +2 more sources

Análises bromatológicas para a pescada branca (Plagioscion squamosissimus) comercializada em Santarém - PA

Conjecturas, 2022
Este trabalho tem como objetivo avaliar a qualidade bromatológica de filés de Pescada Branca (Plagioscion squamosissimus) comercializados na feira do pescado em Santarém, Pará. Para isso, 6 amostras foram coletadas para a realização das análises sensoriais e físico-químicas (temperatura, pH, cocção e prova de amônia), seguindo as normas e recomendações
Ladson Fábio Araújo De Oliveira, Ione Iolanda Dos Santos, Jaqueline Lima de Moura, Andréa Krystina Vinente Guimarães, Leidiane Leão De Oliveira   +4 more
openaire   +1 more source

Cytogenetic studies of two freshwater sciaenids of the genus Plagioscion (Perciformes, Sciaenidae) from the central Amazon

Genetics and Molecular Biology, 1999
Cytogenetic characterization of two freshwater sciaenid species from the genus Plagioscion (P. squamosissimus and Plagioscion sp.) was obtained for the first time.
Eliana Feldberg, Jorge Ivan Rebelo Porto, Elen Bethlen Pedraça dos Santos, Francisco Carlos Souza Valentim   +3 more
doaj   +1 more source