Results 71 to 80 of about 5,417 (192)

Ossification of the cranium of Inpaichthys kerri (Characiformes: Acestrorhamphidae) with discussion of paedomorphic traits in the genus

Journal of Anatomy, Volume 248, Issue 5, Page 806-829, May 2026.
In this study, we present a detailed description of the cranial development of Inpaichthys kerri (Characiformes: Acestrorhamphidae), highlighting important topics such as pedomorphic characters and their relationship with ontogeny and phylogeny, as well as ossification sequences unique to the species. Abstract The study of development provides valuable
Yasmim De Santana Santos, Manoela M. F. Marinho   +1 more
wiley   +1 more source

Histological Characterization and Oocyte Development in Pearlspot, Etroplus suratensis (Bloch, 1790) From Vembanad Lake, Kerala, India

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT This study is the first to elucidate the oocyte growth pattern of Etroplus suratensis through detailed gonad histology. Ovary samples from different maturity stages were collected from October 2023 to September 2024 from cage culture systems installed in Vembanad Lake, Kumbalangi, Kerala, India.
Mohammad Saddam Hussain, Mahadevan Harikrishnan, Dinesh Yadav, Betsee Thomas, Keerthana PV, Nikhila Khanna AR, Haritha Haridas, Mohamad Husneid Azad, Akhil Soman   +8 more
wiley   +1 more source

Living at the Interface: Behavioral, Evolutionary and Ecological Insights of Spring Use by Highly Mobile Stygobiont Crustaceans, Troglocaris planinensis (Decapoda: Atyidae)

Ecology and Evolution, Volume 16, Issue 4, April 2026.
The study provides evidence that animals considered as strictly linked to subterranean habitats can exhibit behavioral responses to constraints occurring in surface environments. We studied the blind and depigmented shrimp Troglocaris planinensis in the Classical Karst using field and experimental approaches.
Raoul Manenti, Veronica Zampieri, Filippomaria Cassarino, Damiano Brognoli, Edgardo Mauri, Giorgia Terraneo, Elia Lo Parrino, Raffaele Bruschi, Valentina Balestra, Stefano Lapadula, Matteo Galbiati, Valeria Messina, Mattia Falaschi, Benedetta Barzaghi, Gentile Francesco Ficetola, Andrea Melotto   +15 more
wiley   +1 more source

Astyanax leonidas

, 2007
Astyanax leonidas: MLP 9580, holotype, 45.6 mm, Argentina, Misiones, Río Paraná basin, headwaters of Arroyo Urugua-i.Published as part of Juan Marcos Mirande, Gastón Aguilera & María de las Mercedes Azpelicueta, 2007, A new species of Astyanax ...
María de las Mercedes Azpelicueta, Gastón Aguilera, Juan Marcos Mirande   +2 more
core   +1 more source

Astyanax henseli, a new name for Tetragonopterus aeneus Hensel, 1870 from southern Brazil (Teleostei: Characiformes)

Neotropical Ichthyology
Tetragonopoterus aeneus Hensel (1870) is removed from synonymy with Astyanax fasciatus (Cuvier, 1819), revalidated and redescribed as A. henseli to avoid homonymy. Astyanax henseli differs from A. fasciatus stricto sensu and other Astyanax species by the
Filipe A. G. de Melo, Paulo A. Buckup
doaj   +1 more source

Genomic Insights Into Carnivorous Fish in the Characiformes

Ecology and Evolution, Volume 16, Issue 4, April 2026.
This study employed comparative genomic approaches using 12 high‐quality Characiformes genomes (covering nine subfamilies) with zebrafish as an outgroup to explore the molecular mechanisms underlying the carnivorous adaptation of Characiformes. Expanded gene families, positively selected genes, and rapidly evolving genes in carnivorous species were ...
Shihu Zhao, Xuesong Mei, Zhihao Zhang, Tian Xia, Shengyang Zhou, Yuehuan Dong, Shangbin He, Zhicheng Yao, Yuchun Li, Xiufeng Yang, Honghai Zhang   +10 more
wiley   +1 more source

Astyanax hermosus

, 2006
Astyanax hermosus: ILPLA 1690, holotype, 78.5 mm SL, San Francisco River, Primero River basin, Valle Hermoso (31° 07’S 64° 29’W), Punilla Department, Córdoba Province, Argentina, coll.: O. de Ferreri, January 1965; ILPLA 1691, (19) 6 males (2c&s), 13 females, 48.7-77.9 mm SL; ILPLA 1692, 6 females (c&s), 47.0-51.1 mm SL, same locality as holotype.
Lucila C. Protogino, Amalia M. Miquelarena, Hugo L. López   +2 more
openaire   +2 more sources

Population analysis of a chromosome polymorphism in Astyanax (Teleostei, Characiformes) species endemic to the Iguaçu River

Genetics and Molecular Biology, 2008
Chromosomal analyses were performed in the fish Astyanax sp.D collected from three different points: two streams from the right bank and one from the left bank of the Upper Iguaçu River, Paraná State, Brazil.
Daniel Luis Zanella Kantek, Roger Raupp Cipriano, Rafael Bueno Noleto, Alberto Sergio Fenocchio, Roberto Ferreira Artoni, Marta Margarete Cestari   +5 more
doaj   +1 more source

Diet and dietary overlap of three sympatric fish species in lakes of the upper Paraná River floodplain

Brazilian Archives of Biology and Technology, 1999
For a dietary study, specimens of Astyanax bimaculatus, Astyanax schubarti, and Moenkhausia intermedia were caught monthly with seines-nets in six lakes (Pau Veio, Porto Rico, Três Amigos, Mutum, Pontal, and Canal do Meio), on the floodplain of the Upper
Karla Danielle Gaspar da Luz, Edson Kiyoshi Okada   +1 more
doaj   +1 more source

Teleosts as Models for Epigenetic Inheritance

Molecular Ecology, Volume 35, Issue 5, March 2026.
ABSTRACT Teleost fish exhibit a striking divergence from mammals in how they regulate their epigenome. Unlike mammals, they do not undergo the extensive DNA methylation erasure and resetting events that occur during early embryogenesis, germline specification, and spermatogenesis.
Adauto Lima Cardoso, Ozren Bogdanovic
wiley   +1 more source