Results 81 to 90 of about 18,147 (299)

Ampliación de la distribución geográfica de Microgenys minuta Eigenmann 1913 (Characiformes, Characidae) en la cuenca del río Magdalena, Colombia

open access: yesBiota Colombiana, 2017
Se amplía la distribución de Microgenys minuta (Characiformes, Characidae) desde la sección medio-alta del río Cauca y el tramo alto del río Magdalena hasta la porción media de la cuenca del río Magdalena, con base en ejemplares colectados en el ...
Lina M. Mesa S., Juan Gabriel Albornoz
doaj   +1 more source

A new miniature characid (Ostariophysi: Characiformes: Characidae), with phylogenetic position inferred from morphological and molecular data. [PDF]

open access: yesPLoS ONE, 2013
Erythrocharax altipinnis is described from the Serra do Cachimbo, Pará, Brazil. The new taxon is distinguished from all of the Characidae genera by having the pelvic bones firmly attached through the isquiatic processes; a nearly triangular hiatus in the
André Luiz Netto-Ferreira   +4 more
doaj   +1 more source

Fisheries statistical bulletin, Kainji Lake, northern Nigeria, 1997 [PDF]

open access: yes, 1998
The bulletin presents summary tables and charts on levels of fishing activity, fishing effort, yields and economic values of yields for the fisheries of Kainji Lake, Nigeria for the year 1997.

core  

Nomenclatural note on the genus Nans (Ostariophysi, Characidae)

open access: yesRevue suisse de zoologie, 2006
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Juan Marcos Mirande   +2 more
openaire   +1 more source

Heterochromatin patterns and karyotype relationships within and between the genera Brycon and Salminus (Pisces, Characidae)

open access: yesGenetics and Molecular Biology, 1999
Chromosomes of two Brycon species (B. lundii and B. microlepis) and Salminus hilarii were analyzed. Based on constitutive heterochromatin distribution patterns, karyotypic relationships within and between Bryconinae and Salmininae were examined.
Vladimir Pavan Margarido   +1 more
doaj   +1 more source

Megalocytivirus: A Review of Epidemiology, Pathogenicity, Immune Evasion, and Prevention Strategies

open access: yesReviews in Aquaculture, Volume 17, Issue 3, June 2025.
ABSTRACT Megalocytivirus, a large double‐stranded DNA virus belonging to the Iridoviridae family, has infected over 100 species of fish, leading to significant economic losses in the aquaculture, food, and ornamental fish industries. These viruses exhibit icosahedral symmetry and have diameters ranging from 120 to 200 nm.
Changjun Guo   +4 more
wiley   +1 more source

New host records and description of the egg of Anacanthorus penilabiatus (Monogenea, Dactylogyridae)

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Anacanthorus penilabiatus is referred parasitizing the type-host Piaractus mesopotamicus (Serrasalmidae) and two new hosts, Colossoma macropomum and C.
MC Pamplona-Basilio, A Kohn, VA Feitosa
doaj   +1 more source

The past history and present trends in the fisheries of Lake Chad [PDF]

open access: yes, 1993
Lake Chad is a very large, shallow eutrophic lake shared by Chad, Nigeria, Niger and Cameroun. It supplies approximately 13% of Nigeria's inland fish. It however lies in an unstable ecological environment characterised by intermittent period of rainfall ...
Raji, A.
core  

Karyotypic diversity in a population of Bryconamericus aff. iheringii (Characidae) [PDF]

open access: yesGenetics and Molecular Research, 2014
Bryconamericus comprises 56 species distributed into three groups, on the basis of the position and shape of the maxillary teeth: B. exodon, B. microcephalus and B. iheringii groups. Few cytogenetic data are available for this genus, but the diploid number of 52 chromosomes is quite common, although the karyotypic variability is extensive.
Lucia Giuliano-Caetano   +2 more
openaire   +2 more sources

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