Results 91 to 100 of about 1,152 (209)

Fish remnants from the excavations of the Bronze Age barrow near Maryanskoe village (Dnepropetrovsk region, Ukraine)

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2014
The Bronze Age mound (2.5–2.3 kya BC) is located near the Maryanskoe village (Apostolovskyi district, Dnepropetrovsk region) and was excavated in 1953.
O. M. Kovalchuk
doaj   +1 more source

Subgenome Partitioning and Polyploid Genome Evolution in the Loach Family Botiidae (Order Cypriniformes)

open access: yesAdvanced Science, Volume 12, Issue 36, September 25, 2025.
This study investigates subgenome evolution and polyploidy in Cypriniformes fish, revealing complex phylogenetic relationships and genomic dynamics. By applying advanced subgenome partitioning methods, it uncovers novel insights into transposon activity and gene fractionation.
Yunyun Lv   +14 more
wiley   +1 more source

Development of DNA identification for sturgeon species with the use of real time polymerase chain reaction

open access: yesRibogospodarsʹka Nauka Ukraïni, 2017
Purpose. Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus. Four species may now be extinct.
V. Spyrydonov
doaj   +1 more source

Environmental DNA Reveals the Fish Community Structure Exhibited Instability and Trend of Miniaturization in the Xijiang River Basin of the Guizhou

open access: yesEcology and Evolution, Volume 15, Issue 9, September 2025.
Monitoring of fish communities is of great significance for the management and sustainability of river ecosystems. Environmental DNA (eDNA) metabarcoding technology has been demonstrated to be a highly sensitive biomonitoring tool. Nevertheless, it has seldom been tested in mountainous rivers within the geographically complex Karst region.
Xiuhui Ma   +5 more
wiley   +1 more source

Lungfish‐like antero‐labial tooth addition and amphibian‐like enameloid‐enamel transition in the coronoid of a Devonian stem actinopterygian

open access: yesJournal of Anatomy, Volume 247, Issue 3-4, Page 418-441, September/October 2025.
The tooth patterning logic, which cannot be inferred from surface morphology, is revealed by visualizing buried tooth remnants in 3D. The primary teeth are added labially, initially organized in radial rows, which transition into linear rows where the coronoid becomes slender.
Donglei Chen
wiley   +1 more source

On the sources of development of the fish skeleton muscles [PDF]

open access: yes, 1968
An investigation of the sources of development of skeleton muscles of Acipense-riformes, Selachii and Teleostei showed that in Teleostei the dermatome takes part in the formation of muscle fibres of the myotome and a body wall.
Борисов, И.Н.
core   +2 more sources

The fate of the duplicated androgen receptor in fishes: a late neofunctionalization event?

open access: yesBMC Evolutionary Biology, 2008
Background Based on the observation of an increased number of paralogous genes in teleost fishes compared with other vertebrates and on the conserved synteny between duplicated copies, it has been shown that a whole genome duplication (WGD) occurred ...
Haendler Bernard   +7 more
doaj   +1 more source

Germline cysts and asymmetry in early previtellogenic ovarian follicles in cultured albino females of sterlet Acipenser ruthenus L. 1758 (Chondrostei, Acipenseriformes)

open access: yesProtoplasma, 2019
It is a first report on the structure of germline cells in ovaries of albino sterlet Acipenser ruthenus L. 1758. Ovarian nests, follicles, and germinal epithelium have been examined in gynogenetic and control specimens of this species.
M. Zelazowska, D. Fopp‐Bayat
semanticscholar   +1 more source

Gulf sturgeon [PDF]

open access: yes, 2016
NCTC Freshwater Fishes Teaching Collection: Order: Acipenseriformes Family: Acipenseridae Genus: Acipenser Species: o.
Patterson, Matthew, USFWS
core   +2 more sources

Multiple source genes of HAmo SINE actively expanded and ongoing retroposition in cyprinid genomes relying on its partner LINE

open access: yesBMC Evolutionary Biology, 2010
Background We recently characterized HAmo SINE and its partner LINE in silver carp and bighead carp based on hybridization capture of repetitive elements from digested genomic DNA in solution using a bead-probe 1.
Gan Xiaoni, Tong Chaobo, He Shunping
doaj   +1 more source

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