Results 11 to 20 of about 1,529 (177)

Spatial Structure Explains Morphological Variation Better Than Climatic Gradients in the South American Rattlesnake (<i>Crotalus durissus</i>). [PDF]

open access: yesEcol Evol
We evaluated whether climatic gradients or spatial structure better explain body size variation in the South American rattlesnake (Crotalus durissus) across its wide geographic range. After explicitly accounting for spatial autocorrelation, climatic variables were not significant predictors of body size in either sex, whereas sex‐specific spatial ...
Otani M   +3 more
europepmc   +2 more sources

Nutritional, Oxidative, and Sensory Quality of Whiteleg (Penaeus vannamei) and Pink Shrimp (Penaeus paulensis) From Different Production Systems During Frozen Storage. [PDF]

open access: yesJ Food Sci
ABSTRACT This study compared the nutritional composition, fatty acid profile, oxidative stability, and sensory quality of whiteleg shrimp (Penaeus vannamei) and pink shrimp (Penaeus paulensis) obtained from semi‐intensive, organic, and wild systems. Four groups were evaluated: Semi‐intensive P.
Rosa SC   +12 more
europepmc   +2 more sources

Performance of Centropomus parallelus fingerlings fed a diet supplemented with citrate and acetate

open access: yesBoletim do Instituto de Pesca, 2016
This study aimed to evaluate the addition of sodium acetate and sodium citrate in the diets of fingerling fat snook (Centropomus parallelus), through growth performance and modification of the intestinal microbiota.
Bruno Corrêa da SILVA   +4 more
doaj   +1 more source

MATURAÇÃO OVARIANA DE Astyanax altiparanae APÓS DESOVA EM SISTEMA DE RECIRCULAÇÃO DE ÁGUA

open access: yesBoletim do Instituto de Pesca, 2018
Neste estudo, avaliamos a possibilidade de obtenção de desovas sucessivas de Astyanax altiparanae mantidos em biotério. Para isso, 104 indiví­­duos foram distribuí­­dos aleatoriamente em quatro caixas (10 fêmeas e 16 machos em cada) e mantidos a uma ...
Lieschen Valeria Guerra LIRA   +4 more
doaj   +1 more source

Uso da biorremediação na aquicultura

open access: yes, 2018
A aquicultura, assim como outras atividades agropecuárias, pode ser poluidora do ambiente, por meio da degradação da qualidade da água dos corpos receptores. Porém, a introdução de métodos de tratamento e reuso da água nas atividades produtivas reduz em até 90% os nutrientes e o material em suspensão na descarga final.
Vieira, Danielle Machado   +3 more
openaire   +2 more sources

A spatial perspective of bioeconomy in the Brazilian Amazon

open access: yesInforme Gepec
This study investigates the distribution and diversity of activities related to bioeconomy in the Brazilian Amazon, leveraging concepts from spatial analysis such as rural-urban integration, agglomeration economies, and local-global knowledge ...
Thiago José Arruda de Oliveira   +3 more
doaj   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

ATER Digital: contribuições para o fortalecimento da aquicultura familiar

open access: yesNovos Cadernos NAEA
A Assistência Técnica e Extensão Rural Digital (ATER Digital) constitui uma estratégia de modernização e apoio ao desenvolvimento sustentável da agricultura e aquicultura familiar, ao integrar tecnologia, acompanhamento técnico e inclusão produtiva.
João Felipe Nogueira Matias   +2 more
doaj   +1 more source

Effects of Glyphosate on the Planktonic Microbiota: An Experimental Approach

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Glyphosate is one of the most widely used herbicides in the world, including in Brazil, and its dispersion through habitats and surface waters can impact entire aquatic ecosystems. However, experimental studies evaluating the effects of pesticides on whole planktonic communities, considering attributes such as richness, density and composition—
Melissa Progênio   +7 more
wiley   +1 more source

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Fiorindo José Cerqueira   +9 more
wiley   +1 more source

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