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Determination of Hg and diet identification in otter (Lontra longicaudis) feces
(ELSEVIER SCI LTD, 2008)
An analytical procedure for the determination of Hg in otter (Lontra longicaudis) feces was developed, to separate fish scales for the identification of the animal diet. Samples were washed with ultra-pure water and the ...
Economic analysis of family trout farming in Southern Brazil
(2020-10-01)
This study aimed to evaluate the economic feasibility of family trout farming in the Serra Catarinense, a temperate region in South Brazil. Two properties characterized as small (production = 10.8 t/yr) and medium (production ...
Comparison between the steam compression refrigeration system with intercooler and with compressor scale system: A case study
(Elsevier B.V., 2019-03-01)
The present investigation is developed in the refrigeration industry, whose activity is the production and commercialization of the ice used mainly in the fishing industry. The development consists in evaluating and comparing ...
A multimetric index based on fish fauna for the evaluation of the biotic integrity of streams at a mesohabitat scale
(Associação Brasileira de Limnologia, 2012-12-01)
OBJETIVO: Neste estudo avaliamos se o Índice de Integridade Biótica (IBI) elaborado com base na ictiofauna é capaz de discriminar locais referência dos degradados em uma escala de meso-hábitat. MÉTODOS: A ictiofauna de 96 ...
Marine parasites as biological tags in South American Atlantic waters, current status and perspectives
(Cambridge University Press, 2013-12)
Many marine fisheries in South American Atlantic coasts (SAAC) are threatened by overfishing and under serious risk of collapsing. The SAAC comprises a diversity of environments, possesses a complex oceanography and harbours ...
Diet composition of bigeye tuna (Thunnus obesus) and yellowfin tuna (Thunnus albacares) caught on aggregated schools in the western equatorial Atlantic Ocean
(Wiley-Blackwell, 2019-10-01)
The present study aims to characterize and compare the diet of bigeye and yellowfin tunas caught on aggregated schools in the western equatorial Atlantic Ocean. The samples were collected from January 2011 to June 2016. ...
Ecological uniqueness of fish communities from streams in modified landscapes of Eastern Amazonia
(2020-04-01)
Ecological uniqueness is one aspect of beta (β) diversity that shows the relative contribution of sites (local contribution to beta diversity – LCBD) and taxa (species contribution to beta diversity – SCBD) in the formation ...
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil
(2018-11-26)
To promote marine conservation and sustainable resources use it is highly important to understand reef fish population structure and dynamics. The sergeant major, Abudefduf saxatilis, is a common and abundant fish usually ...
Pathological assessment of farmed yellowtail tetra Astyanax altiparanae infested by Acusicola sp. (Ergasilidae)
(2015-11-01)
This study registers for the first time the copepod Acusicola sp. infesting the gills of farmed yellowtail tetra Astyanax altiparanae, as well as new information on gross pathology and gill alterations. Five specimens of ...