Results 31 to 40 of about 33,489 (313)

A LATE SANTONIAN FISH-FAUNA FROM THE EUTAW FORMATION OF ALABAMA RECONSTRUCTED FROM OTOLITHS

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2018
The otoliths described here from the Late Santonian of the Eutaw Formation of Alabama, represent one of the earliest association of teleost otoliths known from North America and it is remarkable for its good preservation and species diversity.
WERNER W. SCHWARZHANS   +2 more
doaj   +1 more source

A Review of Galaxias (Galaxiidae) Fossils from the Southern Hemisphere

open access: yesDiversity, 2020
The Galaxiidae is a Southern Hemisphere family of freshwater fish, considered to be of Gondwanan origin based on the current distribution of species in New Zealand, Australia (including Tasmania), New Caledonia, Africa, South America, and on some ...
Uwe Kaulfuss   +4 more
doaj   +1 more source

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato   +4 more
wiley   +1 more source

Glass eels and viruses – a lesson learnt from stocking the eastern German Baltic Sea coast

open access: yesTransboundary and Emerging Diseases, Accepted Article., 2022
Abstract Concerns about Anguillid herpesvirus 1 (AngHV‐1) in European eels, especially due to stocking measures, is increasingly coming into focus and raises questions regarding disease monitoring and prevention. In the past, stocking of AngHV‐1‐positive eels into waters assumed AngHV‐1‐free has led to a rapid increase of infected eels in the wild. For
Laura Kullmann   +3 more
wiley   +1 more source

Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae

open access: yesScientific Reports, 2018
The effects of ocean acidification on otolith crystallization and growth rates were investigated in gilthead sea bream (Sparus aurata) larvae. Larvae were exposed to three different pH levels: pH8.2, pH7.7 and pH7.3 for a period of 18 days post ...
Clara Coll-Lladó   +4 more
doaj   +1 more source

Dispersal of larval and juvenile seabream: Implications for Mediterranean marine protected areas [PDF]

open access: yes, 2015
In the marine context, information about dispersal is essential for the design of networks of marine protected areas (MPAs). Generally, most of the dispersal of demersal fishes is thought to be driven by the transport of eggs and larvae in currents, with
Calo A.   +5 more
core   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

open access: yesOikos, EarlyView.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley   +7 more
wiley   +1 more source

Preliminary results of the empirical validation of daily increments in otoliths of jack mackerel Trachurus symmetricus murphyi (Nichols, 1920) marked with oxytetracycline

open access: yesScientia Marina, 2003
The frequency of microincrement formation in sagittae otoliths of jack mackerel Trachurus symmetricus was validated using experiments on captive fish. Adult jack mackerel were injected with a dose of 100 mg of oxytetracycline/kg of fish.
Miguel Araya   +2 more
doaj   +1 more source

Rhyming in the cold: first evidence of soniferous fishes in the Southern Ocean

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
The acoustic ecology of Southern Ocean fishes remains unknown due to a lack of dedicated acoustic research on the fishes of this ocean. Passive acoustic monitoring data were collected at the South African sub‐Antarctic Prince Edward Islands using an underwater acoustic recorder, and towed underwater Ski‐Monkey cameras were deployed to identify fish ...
Fannie W. Shabangu   +5 more
wiley   +1 more source

Phylogeny of Gadidae based on fossil and recent otoliths with special emphasis on the evolution of Micromesistius and Gadiculus

open access: yesFrontiers in Marine Science, 2015
Otoliths are a powerful tool in reconstructing the family tree of the Gadidae in its strict sense, thus only including the cods with three dorsal fins.
Pieter A.M. Gaemers
doaj   +1 more source

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