Results 71 to 80 of about 716 (181)

Abundância natural do isótopo estável de carbono (13C) de alguns itens alimentares e sua contribuição no crescimento de juvenis de pintado, Pseudoplatystoma corruscans (Agassiz, 1829) (Osteichthyes,

open access: yesActa Scientiarum: Biological Sciences, 2008
O presente estudo foi realizado com o objetivo de determinar a abundância natural do isótopo estável de carbono (13C) de alguns componentes alimentares e determinar sua contribuição no crescimento de juvenis de pintado, em condições laboratoriais.
Valéria Rossetto Barriviera Furuya   +3 more
doaj   +1 more source

Length‒Weight and Length‒Length Relationships of Freshwater Fish Species Caught by Professional Fishermen in the Itaipu Reservoir, Brazil

open access: yesJournal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
Length‒weight relationships (LWRs) and length‒length relationships (LLRs) were estimated for 63 and 58 freshwater fish species, respectively, captured in the Itaipu Reservoir, Paraná River Basin, Paraná State, Brazil. Sampling was carried out from March 1987 to July 2024 at 63 professional fishing sites within the reservoir’s area of influence ...
Éder André Gubiani   +7 more
wiley   +1 more source

Identificação de Parasitos de Peixes Cultivados e Selvagens em Mato Grosso do Sul [PDF]

open access: yes, 2011
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Engenharia de Aquicultura.Este relatório descreve as atividades realizadas durante o período de estágio supervisionado II, no qual se realizou a identificação
Paseto, Ágata
core  

The economic displacement of thousands of fishers in the Pantanal, Brazil: A telling story of small‐scale fisheries marginalization worldwide.

open access: yesFish and Fisheries, Volume 25, Issue 6, Page 951-958, November 2024.
Abstract A new policy in the Pantanal wetland, Brazil, aims to economically displace thousands of artisanal fishers from one‐third of the region. The legislation disregards several FAO Voluntary Guidelines for Securing Sustainability in Small‐Scale Fisheries' guiding principles (SSF guidelines). Considering that 2024 marks the 10th anniversary of these
Adriana Maria Espinoza Fernando   +8 more
wiley   +1 more source

Foraging behavior interactions between the invasive Nile Tilapia (Cichliformes: Cichlidae) and three large native predators

open access: yesNeotropical Ichthyology
The predator-prey relationships between juvenile Nile Tilapia Oreochromis niloticus and native fish species of the Paraná River basin, Brazil, were experimentally examined. Juveniles of O. niloticus were offered to three native predator species (Salminus
Tiago Birck   +4 more
doaj   +1 more source

Haematological Parameters of the Hybrid Surubim (Pseudoplatystoma reticulatum x P. corruscans) farmed in Brazil [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2015
This study evaluated the haematological parameters of the hybrid surubim (Pseudoplatystoma corruscans x P. reticulatum) farmed in intensive and semi intensive system. A total of 240 fish were examined, 120 from fish farm and 120 from a semi-intensive for comparison between the hot and cold season.
Jerônimo, Gabriela Tomas   +6 more
openaire   +4 more sources

Larvae of migratory fish (Teleostei: Ostariophysi) in the lotic remnant of the Paraná River in Brazil

open access: yesZoologia (Curitiba), 2015
Fish larvae and adults are morphologically distinct from each other and have different ecological requirements. Research on the dynamics of ichthyoplankton provides valuable information about the early stages of the life cycle of fish.
Evelyn Barzotto   +4 more
doaj   +1 more source

Adaptações anatômicas da cavidade bucofaringiana de pseudoplatystoma corruscans (spix e agassiz, 1829) (siluriformes, pimelodidae) em relação ao seu hábito alimentar [PDF]

open access: yes, 2006
O estudo da anatomia funcional da cavidade bucofaringiana dos peixes é importante por permitir inferências a respeito do hábito alimentar, mecanismos de captura, seleção e processamento do alimento.
Menin, Eliane, Rodrigues, Sirlene Souza
core  

Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain

open access: yesRevista de Biología Tropical, 2011
Determining quality of food ingested and digestibility can be helpful in understanding the mechanisms that determine trophic plasticity, which is the ability of a given species to use a more advantageous food source at a given time.
Anna Christina Esper Amaro de Faria   +1 more
doaj   +2 more sources

Molecular identification of Pseudoplatystoma sp. fish fillets by Multiplex PCR

open access: yesVigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia, 2014
Nuclear and mitochondrial genes were used as molecular markers for verifying the iden-tity of fish fillets marketed as pintado (Pseudoplatystoma corruscans).
Cátia Maria de Oliveira Lobo   +6 more
doaj   +6 more sources

Home - About - Disclaimer - Privacy