Results 81 to 90 of about 66,936 (320)

Fatty Acids and Stomach Contents Reveal Dietary Overlaps of Two Prospering Squid Species in the North Sea

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Distribution ranges of cephalopods are expanding worldwide and their abundances are increasing due to ocean warming. Recently, the broadtail shortfin squid Illex coindetii (Ommastrephidae) expanded into the North Sea where it established a successful spawning stock beside the resident veined squid Loligo forbesii (Loliginidae). Stomach content analysis
Hanna Rittinghaus   +4 more
wiley   +1 more source

Alburnus nasreddini, a synonym of A. escherichii (Teleostei: Leuciscidae)

open access: yesZootaxa, 2020
Alburnus nasreddini described from Lake Eber in Central Anatolia is a junior synonym of A. escherichii, a widespread species in adjacent Sakarya River drainage. We found no morphological characters to distinguish Alburnus nasreddini from A. escherichii and both are poorly distinguished on a molecular level also. 
ESRA BAYÇELEBİ   +3 more
openaire   +3 more sources

Ichthyological ecoregions of Argentina [PDF]

open access: yes, 2002
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis   +2 more
core  

A Glimpse into the Satellite DNA Library in Characidae Fish (Teleostei, Characiformes)

open access: yesFrontiers in Genetics, 2017
Satellite DNA (satDNA) is an abundant fraction of repetitive DNA in eukaryotic genomes and plays an important role in genome organization and evolution.
Ricardo Utsunomia   +9 more
semanticscholar   +1 more source

Almost billfish: convergent longirostry, micro‐dentition, and possible glandular sinuses in a large teleost fish from the Upper Cretaceous of Northern Italy

open access: yesJournal of Anatomy, Volume 247, Issue 6, Page 1109-1130, December 2025.
A fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Giovanni Serafini   +5 more
wiley   +1 more source

Revision of so-called Pomatoschistus (Gobiiformes, Teleostei) from the late Eocene and early Oligocene

open access: yes, 2017
The Gobiiformes (Teleostei) are among the most speciose groups of vertebrates, and are found in all aquatic habitats. Identification of extant gobiiform species is primarily based on soft-tissue characters, and their diversity and phenotypic variability ...
Christoph Gierl, B. Reichenbacher
semanticscholar   +1 more source

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

open access: yes, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan   +2 more
core  

Environmental variables, habitat discontinuity and life history shaping the genetic structure of Pomatoschistus marmoratus [PDF]

open access: yes, 2014
Coastal lagoons are semi-isolated ecosystems exposed to wide fluctuations of environmental conditions and showing habitat fragmentation. These features may play an important role in separating species into different populations, even at small spatial
A Pérez-Ruzafa   +119 more
core   +3 more sources

Five new species of Hemibrycon (Characiformes: Characidae) from the Río Magdalena basin, Colombia

open access: yesRevista de Biología Tropical, 2010
Five new fish species of the genus Hemibrycon are described from the Río Magdalena basin, Colombia, using morphometric, meristic and osteological characters. Hemibrycon paez (n=40) differs in number of lateral line scales (39 to 42 vs.
César Román-Valencia   +1 more
doaj  

Post-testicular sperm maturation in ancient holostean species

open access: yesScientific Reports, 2023
Fish speciation was accompanied by changes in the urogenital system anatomy. In evolutionarily modern Teleostei, male reproductive tracts are fully separated from the excretory system, while in evolutionarily ancient Chondrostei and Holostei, the ...
Viktoriya Dzyuba   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy