Results 11 to 20 of about 860,290 (221)

Bioecology of Electric Fish (Actinopterygii: Gymnotiformes)

open access: yesMiddle East Research Journal of Biological Sciences
The poraquê has an elongated and cylindrical body, with just one anal fin, which extends across almost the entire abdomen it resembles the shape of an eel. Its head is flat and its mouth is equipped with a row of sharp, conical teeth.
C. Marchiori   +2 more
semanticscholar   +2 more sources

Late Jurassic jaw bones of Halecomorph fish (Actinopterygii: Halecomorphi) studied with X-ray microcomputed tomography [PDF]

open access: yesPalaeontologia Electronica, 2015
New finds of Halecomorphi fish remains from Late Jurassic limestones of Owadów-Brzezinki (Poland) are investigated using X-ray microcomputed tomography (XMT) revealing details of jaw bones for actinopterygian fish histology.
B. Błażejowski   +4 more
semanticscholar   +2 more sources

Larval development of Characidium orientale (Actinopterygii: Crenuchidae) a small Neotropical fish

open access: yesIheringia. Série Zoologia, 2022
The Characidium orientale Buckup & Reis, 1997 larvae development is described using specimens collected in the natural environment of Antas River, in the Taquari-Antas river basin, Rio Grande do Sul, Brazil.
Douglas Ticiani   +3 more
semanticscholar   +5 more sources

Extent of threats to marine fish from the online aquarium trade in the United States. [PDF]

open access: yesConserv Biol
The global marine aquarium hobby is a multibillion‐dollar industry, largely driven by demand from the United States. Much of this trade occurs online. We web scraped 4 major US‐based e‐commerce platforms selling marine aquarium fish to determine the retail price and source (wild capture, aquaculture, or both) of 13 families of ray‐finned marine fish ...
Lin B   +6 more
europepmc   +2 more sources

Fish occurrence in the Kama River Basin (Russia) [PDF]

open access: yesBiodiversity Data Journal, 2022
Dataset contains information on fish occurrences in the Kama River Basin (Russian Federation). The Kama River is the largest tributary (1805 km) of the Volga River and is geographically often considered the main river due to the larger volume of water at
Ivan Pozdeev   +5 more
doaj   +3 more sources

Reef fishes biodiversity and conservation at the largest Brazilian coastal Marine Protected Area (MPA Costa dos Corais)

open access: yesNeotropical Ichthyology, 2021
Coral reefs harbor one of the largest fish biodiversity on earth; yet information on reef fishes is still absent for many regions. We analyzed reef fish richness, distribution, and conservation on the largest Brazilian multiple use coastal MPA; which ...
Pedro H. C. Pereira   +8 more
doaj   +1 more source

Lecithochirium monticellii digenetic trematode parasites of Trichiurus lepturus (Actinopterygii) from the state of Rio de Janeiro, Brazil, with notes on its taxonomy [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
Abstract: Trichiurus lepturus (Actinopterygii, Perciformes) is a commercially and economically important fish. A total of 60 specimens of this cutlassfish were collected of the coast the municipalities of Niterói and Cabo Frio, state of Rio de Janeiro ...
LUMA F. FRANÇA   +7 more
doaj   +1 more source

The evolution, structure and function of the ray finned fish (Actinopterygii) glucocorticoid receptors. [PDF]

open access: yesGeneral and Comparative Endocrinology, 2017
Basal ray-finned fish (Actinopterygii) possess a single glucocorticoid receptor (GR) and when compared to the lobe-finned vertebrate (Sarcopterygii) GR possess nine additional amino acids between the zinc-finger of the DNA binding domain. A whole genome duplication event which occurred between 320 and 350MYA in the teleost lineage following the split ...
Nic R. Bury
semanticscholar   +5 more sources

Is Nematocharax (Actinopterygii, Characiformes) a monotypic fish genus? [PDF]

open access: yesGenome, 2016
The combination of DNA barcodes and geometric morphometrics is useful to discriminate taxonomically controversial species, providing more precise estimates of biodiversity. Therefore, our goal was to assess the genetic and morphometric diversity in Nematocharax, a controversial monotypic and sexually dimorphic genus of Neotropical fish, based on ...
Barreto, Silvia Britto   +7 more
openaire   +4 more sources

Length–weight relations of fishes (Actinopterygii) from Chilika Lagoon, India [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2020
تم تقدير LWRs لـ 37 نوعًا من الأسماك من بحيرة تشيليكا التي تنتمي إلى 29 جنسًا من 24 عائلة. تم فحص الأنواع التالية: Acanthopagrus berda، Acanthopagrus longispinnis، Ambassadoris، Ambassis gymnocephalus، Anabas testudineus، Aplocheilus panchax، Atherinomorus duodecimalis، Cirrhinus reba، Daysciaena albida، Dendrophysa russelii، Eleutheronema ...
S. K. Karna   +4 more
openaire   +2 more sources

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