Results 61 to 70 of about 12,829 (213)

Parasites and non-fish predators of tilapia with particular reference to the sustainable management of fisheries of Lake Kainji Nigeria [PDF]

, 2001
The fisheries of Lake Kainji, Nigeria, experienced a boom year following impoundment, then decline post impoundment and now is in a period of stabilisation of the fish resources. Several reasons have been advanced on factors responsible for these changes,
Obiekezie, A., Okaeme, A.N., Olufemi, B.E.   +2 more
core  

Dos especies nuevas de Creptotrema (Digenea: Allocreadiidae) de America del Sur

Revista Mexicana de Biodiversidad, 2008
DOS ESPECIES NUEVAS DE DIGÉNEOS PERTENECIENTES A CREPTOTREMA TRAVASSOS, ARTIGAS Y PEREIRA, 1928 FUERON DESCRITAS DE EJEMPLARES DEPOSITADOS EN LA COLECCIÓN DE INVERTEBRADOS DEL MUSEO DE HISTORIA NATURAL DE GINEBRA, SUIZA. CREPTOTREMA LAMOTHEI N. SP.
STEPHEN S. CURRAN
doaj   +1 more source

Requerimiento proteico del pez juvenil Metinnys orinocencis (Characiformes: Characidae)

Revista de Biología Tropical, 2019
Introducción: La moneda o pez dólar, Metynnis orinocensis, es una de las especies ornamentales nativas de Colombia, con gran participación en el mercado internacional. Habitan principalmente en lagunas permanentes y áreas de inundación de las cuencas de los ríos Amazonas y Orinoco. Es una especie que ha sido reproducida en cautiverio.
Mariana Catalina Gutiérrez-Espinosa, Juan Sebastian Velasco Garzon   +1 more
openaire   +3 more sources

Tails of Biodiversity: Vertebrate Community Assessment in a Neotropical River Basin via eDNA Metabarcoding

Environmental DNA, Volume 8, Issue 1, January–February 2026.
This study used environmental DNA (eDNA) metabarcoding to assess vertebrate biodiversity in headwater streams of the Rio Santo Antônio basin, southeastern Brazil, a tributary of the Rio Doce. A total of 119 vertebrate OTUs were identified, with oxidation–reduction potential emerging as the strongest environmental predictor of species richness.
Larissa Moreira‐Silva, Rennan Garcias Moreira, Jim Perry, Walisson Kenedy‐Siqueira, Guilherme Costa Baião, Daniel Negreiros, Fernando Figueiredo Goulart, Josimar Daniel Gomes, Geraldo Wilson Fernandes   +8 more
wiley   +1 more source

New insights into the putative XX/XY sex chromosomal system in blue‐eyed red‐fin pleco Hypostomus soniae (Siluriformes, Loricariidae)

Journal of Fish Biology, Volume 108, Issue 1, Page 92-102, January 2026.
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Luan Aércio Melo Maciel, Renata Coelho Rodrigues Noronha, Bruno Rafael Ribeiro de Almeida, Manoella Gemaque Cavalcante, Cleusa Yoshiko Nagamachi, Julio Cesar Pieczarka, Luís Reginaldo R. Rodrigues   +6 more
wiley   +1 more source

First study on parasites of Hemibrycon surinamensis (Characidae), a host from the eastern Amazon region. [PDF]

, 2019
This study was the first investigation of communities and infracommunities of parasites of Hemibrycon surinamensis. All the fish collected in a tributary of the Amazon river were parasitized by one or more parasite species. The Brillouin diversity index (
DIAS, M. T., HOSHINO, E. M., HOSHINO, M. D. F. G.   +2 more
core   +1 more source

First Records of Length–Weight Relationships for Ten Fish Species From the Middle Stretch of the Uruguay River, Southern Brazil

Journal of Applied Ichthyology, Volume 2026, Issue 1, 2026.
This study estimated the length–weight relationships (LWRs) of 10 fish species from the middle stretch of the Middle Uruguay River basin, aiming to provide new morphometric data and contribute to the knowledge of Neotropical ichthyofauna. Fish were collected at seven sites with sampling conducted at each site during every season, totaling 84 sampling ...
Lucas Adriano Pachla, Marthoni Vinicius Massaro, David Augusto Reynalte-Tataje, Sandra Maria Hartz, Jacob Burbank   +4 more
wiley   +1 more source

Alau reservoir: a multi-dimensional resource base in Borno State [PDF]

, 1999
Aspects of the fishery resources of Alau Reservoir in Maiduguri are reported upon in this paper. It focuses attention on the fishery in terms of fish abundance and potential. It also discusses other resources associated with the fish production.
Bankole, N.O., Okaeme, A.N.
core  

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

Genetics 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, Pedro Manoel Galetti Junior   +1 more
doaj   +1 more source

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

PLoS 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, José Luís Olivan Birindelli, Leandro Melo de Sousa, Tatiane Casagrande Mariguela, Claudio Oliveira   +4 more
doaj   +1 more source