Results 141 to 150 of about 569 (162)
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LESIONES POR PECES CARIBES SERRASALMUS NATTERERI
International Journal of Dermatology, 1966exaly +2 more sources
Micron, 2014
With the intent to provide additional information on the reproductive biology of the ostariophysian fish, the oocyte development in Serrasalmus maculatus is here described under light and electron microscopy by using some cytochemical methods. Our results are discussed considering the cellular processes that drive the oocyte development and comparing ...
Quagio-Grassiotto, Irani +2 more
openaire +3 more sources
With the intent to provide additional information on the reproductive biology of the ostariophysian fish, the oocyte development in Serrasalmus maculatus is here described under light and electron microscopy by using some cytochemical methods. Our results are discussed considering the cellular processes that drive the oocyte development and comparing ...
Quagio-Grassiotto, Irani +2 more
openaire +3 more sources
Attack preferences of the red-bellied piranha (Serrasalmus nattereri)
Animal Behaviour, 1972Abstract Single small piranha ( Serrasalmus nattereri ) were exposed once per day for 30 consecutive days to a single comet goldfish ( Carassius auratus ) as large or larger than the piranha. The area of the goldfish's body first attacked and time to first attack were recorded. In 87·9 per cent of the trials, first attack was in the tail area.
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Invasion dynamics of the white piranha (Serrasalmus brandtii) in a Neotropical river basin
Biological Invasions, 2019Clarifying the intricate history of unrecorded fish invasions represents an important step in understanding the invasion process. Here, we elucidate the invasion of a Neotropical river basin in Southeastern Brazil by a very efficient predator, the white piranha (Serrasalmus brandtii).
Daniel Fonseca Teixeira +4 more
openaire +1 more source
Genetica, 2002
Cytogenetic studies were conducted on five piranha species belonging to the genus Serrasalmus, subfamily Serrasalminae (Serrasalmus altispinis, S. compressus, S. elongatus, S. manuelli, and S. spilopleura). All the species were collected in the Amazon basin: confluence of Negro and Solimões Rivers (CatalãoLake), Solimões River (Marchantaria Island ...
Nakayama, Celeste Mutuko +2 more
openaire +3 more sources
Cytogenetic studies were conducted on five piranha species belonging to the genus Serrasalmus, subfamily Serrasalminae (Serrasalmus altispinis, S. compressus, S. elongatus, S. manuelli, and S. spilopleura). All the species were collected in the Amazon basin: confluence of Negro and Solimões Rivers (CatalãoLake), Solimões River (Marchantaria Island ...
Nakayama, Celeste Mutuko +2 more
openaire +3 more sources
Tissue and Cell, 2001
The ultrastructural characteristics of the organelles present in Serrasalmus spilopleura oogonia and oocytes undergoing primary growth were described in detail, considering its role in the nuclear and cytoplasmic metabolic processes that occur in these cell types.
Guimaraes, ACD, Quagio-Grassiotto, I
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The ultrastructural characteristics of the organelles present in Serrasalmus spilopleura oogonia and oocytes undergoing primary growth were described in detail, considering its role in the nuclear and cytoplasmic metabolic processes that occur in these cell types.
Guimaraes, ACD, Quagio-Grassiotto, I
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Categorization of injuries caused by bites from piranhas of the genus Serrasalmus
Latin American Journal of DevelopmentPiranhas are small to medium-sized fish endemic to various regions of Brazil. They are widely distributed throughout the rivers and lakes of the northwestern region of the state of São Paulo, where numerous incidents involving piranha species and both fishermen and swimmers have been reported. Specimens of the genus Serrasalmus were captured using live
Willian Marinho Dourado Coelho +9 more
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Studies on Neotropical Fauna and Environment, 1998
The piranha, Serrasalmus marginatus is an abundant fish in the floodplains of the upper ParanaÝ river. We studied the stomach content of juvenile and adult piranhas over a year and determined the food items. Fragments of fish were the main diet components with age-dependent differences. There was no seasonal variation in the prey.
V.L.L. de Almeida +2 more
exaly +2 more sources
The piranha, Serrasalmus marginatus is an abundant fish in the floodplains of the upper ParanaÝ river. We studied the stomach content of juvenile and adult piranhas over a year and determined the food items. Fragments of fish were the main diet components with age-dependent differences. There was no seasonal variation in the prey.
V.L.L. de Almeida +2 more
exaly +2 more sources
Attacks on humans by the piranhaSerrasalmus rhombeusin Suriname
Studies on Neotropical Fauna and Environment, 2006Piranhas have a reputation of being man‐eating fishes, notwithstanding the absence of well‐documented records of piranha attacks on human beings. Three sites in Suriname where piranha attacks on bathers have taken place are discussed. In two isolated villages on the Wayombo River, most victims were children.
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Environmental Biology of Fishes, 1996
Reproduction in female Serrasalmus spilopleura (Characiformes, Characidae) from the Itumbiara reservoir (18°28′ S, 48°36′ W), Paranaiba River, Brazil, was examined with emphasis on the relationship between condition factors and coelomic fat, the annual reproductive cycle and the unusual dynamics of its sexual maturity. The condition factor and coelomic
Ivana Reis Lamas, Alexandre Lima Godinho
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Reproduction in female Serrasalmus spilopleura (Characiformes, Characidae) from the Itumbiara reservoir (18°28′ S, 48°36′ W), Paranaiba River, Brazil, was examined with emphasis on the relationship between condition factors and coelomic fat, the annual reproductive cycle and the unusual dynamics of its sexual maturity. The condition factor and coelomic
Ivana Reis Lamas, Alexandre Lima Godinho
openaire +1 more source