Results 121 to 130 of about 188 (144)
Type material of Platyhelminthes (Monogenoidea) housed in the Helminthological Collection of the Oswaldo Cruz Institute/ FIOCRUZ (CHIOC), Rio de Janeiro, Brazil, from 1979 to 2016. [PDF]
Zookeys, 2016 Lopes DA +4 more
europepmc +1 more source
Aspectos da alimentação de Genidens genidens (Valenciennes) (Siluriformes, Ariidae) na Baía de Guaratuba, Paraná [PDF]
Revista Brasileira De Zoologia, 1996 Seasonal variation of the food items of the "bagre-urutu", Genidens genidens is analysed based on monthly samples between September, 1993 and April, 1995 at the Guaratuba Bay, coast of Parana. The stomach contents of 105 fish is analysed by the Occurrence Frequency Method and 41 of these have also been analysed by the Volumetric Method.
Paulo De Tarso Da Cunha Chaves +1 more
exaly +4 more sources
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Environmental Science and Pollution Research, 2019
One of the most recognized anthropogenic impacts in marine environments is solid waste pollution, especially plastic, which can be ingested by fish, thus interfering with their health. In this context, the aim of this study is to describe the ingestion of plastic fragments and to identify the possible effect of this contamination in the condition ...
David Valenca Dantas +2 more
exaly +3 more sources
One of the most recognized anthropogenic impacts in marine environments is solid waste pollution, especially plastic, which can be ingested by fish, thus interfering with their health. In this context, the aim of this study is to describe the ingestion of plastic fragments and to identify the possible effect of this contamination in the condition ...
David Valenca Dantas +2 more
exaly +3 more sources
Biologia reprodutiva dos bagres marinhos Genidens genidens (Valenciennes) e Cathorops spixii (Agassiz) (Siluriformes, Ariidae), na Baía de Sepetiba, Rio de Janeiro, Brasil [PDF]
Revista Brasileira De Zoologia, 1999 The reproductive cycle of the marine catfishes Genidens genidens Valenciennes, 1833 and Cathorops spixii Agassiz, 1839 in the Sepetiba Bay, was assessed by an annual period of sampling from October 1993 to September 1994. The fishes were caught by standardized otter trawl and environmental parameters of temperature, salinity and transparency of water ...
Marcia Cristina Costa Azevedo +2 more
exaly +4 more sources
Environmental Biology of Fishes, 2018
Determination of the growth parameters of a species is an indispensable requirement for understanding its biology and consequently the management of its fishery. In fisheries science, calculations of longevity, mortality rates and stock-assessment models depend on the availability of growth data.
Marcelo Vianna +2 more
exaly +2 more sources
Determination of the growth parameters of a species is an indispensable requirement for understanding its biology and consequently the management of its fishery. In fisheries science, calculations of longevity, mortality rates and stock-assessment models depend on the availability of growth data.
Marcelo Vianna +2 more
exaly +2 more sources
A incubação de ovos e larvas em Genidens genidens (Valenciennes) (Siluriformes, Ariidae) da Baía de Guaratuba, Paraná, Brasil [PDF]
Revista Brasileira De Zoologia, 1994 At Guaraluba bay, the catfish Genidens genidens shows incubating behavior during the summer months. The larvae are either less or heavier than the eggs, and their stomach analysis confirms the exogenous leeding during incubation. Embryos sizes can increase to 59mm in total lenght and 2,8g in total weight, including the yolksac. It was observed that the
exaly +4 more sources
Environmental Biology of Fishes, 1992
Genidens genidens was sampled at the Jacarepagua Lagoon system (23° S, 43° W), Rio de Janeiro State, Brazil, using cast nets and beach seines, to study its reproductive biology. Spawning period extended from October to February, but was more intense from December to January, coinciding with high surface water temperature and low salinity in the area ...
JOSÉ V Andreata
exaly +2 more sources
Genidens genidens was sampled at the Jacarepagua Lagoon system (23° S, 43° W), Rio de Janeiro State, Brazil, using cast nets and beach seines, to study its reproductive biology. Spawning period extended from October to February, but was more intense from December to January, coinciding with high surface water temperature and low salinity in the area ...
JOSÉ V Andreata
exaly +2 more sources
Journal of Applied Ichthyology, 2013
Summary Major difficulties in studies monitoring or evaluating general environmental conditions are the intraspecific differences in population descriptors, such as the growth and reproductive period among different localities. The identification of feasible candidates for sentinel species requires basic information on these population parameters ...
D. R. Silva Junior +2 more
openaire +1 more source
Summary Major difficulties in studies monitoring or evaluating general environmental conditions are the intraspecific differences in population descriptors, such as the growth and reproductive period among different localities. The identification of feasible candidates for sentinel species requires basic information on these population parameters ...
D. R. Silva Junior +2 more
openaire +1 more source
High‐salinity water use of euryhaline catfish Genidens genidens revealed by otolith microchemistry
Austral EcologyAbstractMigratory patterns of the catfish Genidens genidens in four estuaries along the Brazilian Atlantic coast are reconstructed from otolith Sr/Ca, a salinity proxy, to test estuarine‐dependency. To facilitate interpretation of this proxy in otolith core‐to‐edge profiles, a Sr/Ca Reference Value for High Salinity (RVHSSr/Ca) of 4.88 mmol/mol was ...
Thaís Rodrigues Maciel +5 more
openaire +2 more sources
Journal of Applied Ichthyology, 2007
Summary The marine catfish Genidens barbus was once one of the most important estuarine fishery resources in the Patos Lagoon (southern Brazil), which had the largest population known for the species. However, clear signs of overfishing have been observed since the 1980s.
G. Velasco, E. G. Reis, J. P. Vieira
exaly +2 more sources
Summary The marine catfish Genidens barbus was once one of the most important estuarine fishery resources in the Patos Lagoon (southern Brazil), which had the largest population known for the species. However, clear signs of overfishing have been observed since the 1980s.
G. Velasco, E. G. Reis, J. P. Vieira
exaly +2 more sources