Results 61 to 70 of about 1,493 (191)

Review of the southern African slender stonebashers, genus Heteromormyrus Steindachner 1866 (Teleostei: Mormyridae), with description of six new species

Journal of Fish Biology, EarlyView.
Abstract Recent molecular studies have advanced our knowledge of the taxonomic diversity and generic placement of the slender stonebashers, previously placed in the genus Hippopotamyrus, in southern Africa. These fishes were recently transferred to the genus Heteromormyrus whose range encompasses the Kwanza, Kunene, Okavango, Zambezi, Pungwe and Buzi ...
Tadiwa I. Mutizwa, Wilbert T. Kadye, Pedro H. N. Bragança, Albert Chakona   +3 more
wiley   +1 more source

Anatomical Behavior of the Celiacomesenteric Artery of Pirarucu Arapaima gigas Cuvier, 1817 (Osteoglossiforme, Arapaimidae) [PDF]

International Journal of Morphology, 2007
El pirarucu, pez de la familia Arapaimidae, es una de las especies mas importantes y emblematicas de la ictiofauna amazonica. Para estudiar las caracteristicas anatomicas de su sistema circulatorio, fueron utilizados 10 ejemplares de Arapaima gigas, con un longitud total media de 74 cm, provenientes de lagos del rio Araguaia, Sao Miguel do Araguaia ...
Santos, André Luiz Quagliatto, Brito, Fernando Moraes Machado, Bosso, Andrea Cristina Scarpa, Vieira, Lucelia Gonçalves, Silva Junior, Luiz Martins da, Kaminishi, Arthur Paulino Sanzo, Silva, Juliana Macedo Magnino, Pinto, José Guilherme Souza, Moura, Mariela Silva, Rosa, Marcelo de Alcántara   +9 more
openaire   +2 more sources

Anthropogenic Factors Drive the Depletion of Fish Functional Β Diversity Within and Outside Two National Reserves in the Peruvian Amazon

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.
ABSTRACT Understanding the impact of human activities on fish communities is critical for the effective conservation of Amazonian ecosystems. In this study, we sampled environmental DNA (eDNA) from 17 sites (lakes and rivers) in two Peruvian national reserves, Pacaya‐Samiria and Allpahuayo‐Mishana, using a metabarcoding approach with four genetic ...
B. Prat, C. Mariac, J.‐F. Renno, C. García‐Dávila, C. Angulo, G. Estivals, F. Duponchelle   +6 more
wiley   +1 more source

Fish Diversity at Head Panjnad and its Genetic Identification by DNA Barcoding Technology

Bioscientific Review, 2022
This study was conducted at Head Panjnad, Pakistan to collect information about the available fish diversity. The evident fish orders found were siluriformes, anabantiformes, cypriniformes, cichliformes, osteoglossiformes, and synbranchiformes.
Saima Naz, Ahmad Manan Mustafa Chatha, Durali Danabas, Saba Iqbal   +3 more
doaj  

Fish Biodiversity at Kawadighi Haor of Northeastern Bangladesh: Addressing Fish Diversity, Production and Conservation Status

Aquatic Sciences and Engineering, 2022
This research was conducted to explore the status of fish species diversity and production in the Kawadighi Haor of northeastern Bangladesh. Data were collected biweekly through direct catch assessment surveys, focus group discussions, and personal ...
Md. Abu Hena Mostofa Kamal, Md. Abu Kawsar, Debasish Pandit, Mrityunjoy Kunda, Khushnud Tabassum, Md. Tariqul Alam   +5 more
doaj   +1 more source

Ridewoodichthys, a new genus for Brychaetus caheni from the marine Paleocene of Cabinda (Africa): re-description and comments on its relationships within the Osteoglossidae (Teleostei, Osteoglossomorpha) [PDF]

, 2009
The marine osteoglossid “Brychaetus” caheni from the Lower Paleocene of Cabinda (Africa) is re-studied. It does not belong to the genus Brychaetus because of differences in teeth and premaxilla shape.
Taverne, L.
core  

Respostas hematológicas de Arapaima gigas (Pisces: Arapaimidae) parasitados naturalmente por protozoários e metazoários. [PDF]

, 2017
O presente estudo comparou os parâmetros sanguíneos de Arapaima gigas Schinz, 1822 de cultivo, parasitados por uma espécie de protozoário e três espécies de helmintos.
BORGES, M., MARINHO, R. das G. B., OBA-YOSHIOKA, E. T., TAVARES-DIAS, M., TOSTES, L. V.   +4 more
core   +1 more source

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

Reviews 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, Jian He, Xiaopeng Xu, Shaoping Weng, Jianguo He   +4 more
wiley   +1 more source

Reproduction and development of the asian bronze featherback Notopterus notopterus (Pallas, 1769) (Osteoglossiformes, Notopteridae) in captivity

Zoosystematics and Evolution, 2017
Experimental data demonstrate that the environmental factors decreasing conductivity, slight variation of temperature, and water level have no influence on gonad development or courtship behavior in Notopterus notopterus.
Honesty Yanwirsal, Peter Bartsch, Frank Kirschbaum   +2 more
doaj   +3 more sources

Morfometría de Dawestrema cycloancistrium (Dactylogyridae: monogenoidea) colectados de Arapaima gigas (Schinz, 1822) “Paiche” (Osteoglossiformes: Arapaimidae) provenientes de estanques piscícolas, Loreto-Perú

Revista Agrotecnológica Amazónica, 2023
En la Amazonía peruana el estudio sobre el parasitismo de peces es poco abordado, por lo que se desconoce sobre los parásitos que pueda poseer cada pez (ornamental o de consumo), y mucho menos sobre las características morfológicas y sus medidas en ...
Daniel Levi Olortegui-Zegarra, Carlos Alfredo Tuesta-Rojas, Germán Augusto Murrieta-Morey   +2 more
doaj   +1 more source