Results 71 to 80 of about 1,783 (204)

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

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

Application of microsatellite markers to determine populations of the Persian sturgeon (Acipenser persicus) in the south of Caspian Sea [PDF]

open access: yes, 2011
The objective of this study was to analyse the population genetic structure of the Persian sturgeon (Acipenser persicus) in Sefidrud and Gorganrud rivers watershed based on the characterization of microsatellite markers during 2006 - 2008. 100 samples of
Baradaran Noveiri, S.   +5 more
core  

Genetic diversity in the Persian sturgeon, Acipenser percicus, from the south Caspian Sea based on mitochondrial DNA sequences of the control region [PDF]

open access: yes, 2011
The Persian sturgeon, Acipenser persicus (Borodin, 1897), is an economically important species, which mainly inhabits the Caspian Sea. However, little is known about its population genetic structure.
Azizzadeh Pormehr, L.   +3 more
core   +1 more source

An isothermal workflow for low‐cost and PCR‐free field‐based community metabarcoding

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 7, Page 1413-1424, July 2025.
Abstract DNA metabarcoding has revolutionized our ability to monitor ecosystems. However, the method is still rarely used in developing countries where resources are limited and fieldwork is challenging. To overcome this limitation, we designed a comprehensive workflow allowing rapid community metabarcoding with minimum, self‐manufacturable equipment ...
Amadeus Plewnia   +2 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

Initial salinity tolerance and ion-osmotic parameters in juvenile Russian sturgeon, Acipenser gueldenstaedtii, Brandt, 1833 [PDF]

open access: yes, 2011
The salinity tolerance, hematological and hydromineral regulation capabilities of juvenile Russian sturgeon (Acipenser gueldenstaedtii) were investigated in different ages and sizes in freshwater (FW: 0.05) but differed in experimental media (p0.05 ...
Farabi, S.M.V.   +3 more
core  

Fatty acid composition of Turbatrix aceti and its use in feeding regimes of Coregonus maraena (Bloch, 1779): is it really a suitable alternative to Artemia nauplii? [PDF]

open access: yes, 2015
By incorporating the free-swimming nematode Turbatrix aceti into early feeding regimes of the European whitefish Coregonus maraena, the suitability of this nematode species was investigated as an alternative to Artemia nauplii.
Bischoff, Adrian   +6 more
core   +1 more source

Fishes from the Upper Cretaceous Prince Creek Formation, North Slope of Alaska, and their palaeobiogeographical significance

open access: yesPapers in Palaeontology, Volume 11, Issue 3, May/June 2025.
Abstract The Upper Cretaceous Prince Creek Formation (PCF) of northern Alaska offers a unique glimpse into northern high‐latitude, non‐marine vertebrate assemblages, providing critical data on polar ecosystems during the late Campanian (c. 73 Ma).
Donald B. Brinkman   +10 more
wiley   +1 more source

Population genetic structure of Persian sturgeon (Acipenser persicus) between South Caspian Sea and Sefidrud River using DNA sequencing method [PDF]

open access: yes, 2014
The goal of this study was to analyse the population genetic structure of the Persian sturgeon (Acipenser persicus) between South Caspian Sea and Sefidrud River with mtDNA control region (Dloop gene) and DNA sequencing method during 2010 – 2012 sturgeon ...
Azizzadeh Pormehr, L.   +5 more
core  

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