Biflagellate spermatozoon structure of the hermaphrodite fish Satanoperca jurupari (Heckel, 1840) (Teleostei, Cichlidae) from the Amazon River [PDF]
The ultrastructural features of the sperm were studied in the hermaphroditic teleost Satanoperca jurupari HECKEL, 1840 from Amazon River. Spermatocytes, spermatids and sperm develop in the testicular cysts among the different oocyte stages.
MATOS E., SANTOS M. N. S., AZEVEDO C.
doaj +7 more sources
Metabolic adjustments in Satanoperca aff. jurupari (Perciformes: Cichlidae) [PDF]
In this paper, we describe the enzyme levels and isozyme distribution in skeletal and heart muscle of Satanoperca aff. jurupari, (Cichlidae, subgroup Geophaginae). LDH and CS were measured in skeletal and heart muscle. Starch gel electrophoresis was used
Chippari-Gomes Adriana R. +4 more
doaj +8 more sources
Fauna parasitaria de dos peces del género Satanoperca (Cichlidae): una revisión de las investigaciones realizadas en el siglo XXI [PDF]
Los cíclidos, son peces de climas cálidos que presentan una rica variedad de patrones de coloración, comportamiento, hábitos alimenticios y tamaños. Los cíclidos del género Satanoperca están ampliamente distribuidos en la región oriental de América del ...
Fred William Chu-Koo +2 more
doaj +3 more sources
Henneguya sacacaensis n. sp. (Myxozoa: Myxosporea) parasitizing gills of the acará bicudo Satanoperca jurupari (Osteichthyes: Cichlidae) in eastern Amazon [PDF]
This study describes Henneguya sacacaensis n. sp. in specimens of the Osteichthyes Satanoperca jurupari (Heckel, 1840), collected in the Rio Curiaú Environmental Protection Area in the city of Macapá, state of Amapá Brazil.
Roger Leomar da Silva Ferreira +5 more
doaj +5 more sources
Rapid morphological change in multiple cichlid ecotypes following the damming of a major clearwater river in Brazil. [PDF]
Abstract While anthropogenic disturbances can have damaging effects on biodiversity, they also offer an opportunity to understand how species adapt to new environments and may even provide insights into the earliest stages of evolutionary diversification. With these topics in mind, we explored the morphological changes that have occurred across several
Gilbert MC +3 more
europepmc +2 more sources
Parasitic diversity of a wild Satanoperca jurupari population, an ornamental cichlid in the Brazilian Amazon [PDF]
Assessment of biodiversity is fundamental for the understanding of ecological interactions, but fish parasites were neglected in biodiversity estimates for a long time.
Marcos TAVARES-DIAS +3 more
doaj +4 more sources
Raphidascaris (Sprentascaris) lanfrediae sp. nov. (Nematoda: Anisakidae) from the fish Satanoperca jurupari (Osteichthyes: Cichlidae) [PDF]
Raphidascaris (Sprentascaris) lanfrediae sp. nov. is described from the intestine of the freshwater fish Satanoperca jurupari (Heckel) (Cichlidae) from the Guamá River, state of Pará, Brazil.
Marly de Fátima Carvalho de Melo +4 more
doaj +3 more sources
Ectoparasites community in Satanoperca jurupari (Cichlidae) from the Jari River, a tributary from Amazon River in Northern Brazil [PDF]
The aim of this study was to investigate the gills parasites in Satanoperca jurupari from the Jari River, state of Amapá, in eastern Amazon (Brazil).
Marcos Sidney Brito de Oliveira +4 more
doaj +4 more sources
A record of pughead deformity in Satanoperca jurupari (Heckel, 1840) (Teleostei: Cichlidae) in the Lower Rio Tocantins Basin [PDF]
: The pughead condition is a cranial deformity characterized by a shortened upper jaw relative to the lower jaw. In this study, we report the occurrence of this deformity in a single specimen of the Demon Eartheater, Satanoperca jurupari, collected in ...
Lais Lobato Jacob +4 more
doaj +2 more sources
Records of new localities and hosts for crustacean parasites in fish from the eastern Amazon in northern Brazil. [PDF]
The aim of this study was to investigate parasites crustacean fauna in Arapaima gigas, Cichla monoculus, Cichla ocellaris, Cichla jariina, Satanoperca jurupari, Leporinus friderici, Leporinus fasciatus, Hoplias malabaricus, Phractocephalus hemioliopterus,
Oliveira MSB +4 more
europepmc +3 more sources

