Results 41 to 50 of about 12,163 (205)

Condition, Reproductive Fitness, and Fluctuating Asymmetry in Brook Stickleback: Responses to Anthropogenic Runoff

open access: yesFishes, 2023
Multiple indicators have been used to assess the degree of exposure of fish to anthropogenic chemicals in their stream habitats. We hypothesized that brook stickleback (Culaea inconstans) in a headwater stream receiving urban and agricultural runoff ...
Neal D. Mundahl, Kelsey A. Hoffmann
doaj   +1 more source

Pelagic–benthic resource polymorphism in Schizopygopsis thermalis Herzenstein 1891 (Pisces, Cyprinidae) in a headwater lake in the Salween River system on the Tibetan Plateau

open access: yesEcology and Evolution, 2020
Resource polymorphism is a ubiquitous phenomenon in vertebrates and may represent a critical intermediate stage in speciation. Freshwater lakes in high‐altitude areas represent a natural system for understanding resource polymorphism in fishes benefiting
Jialing Qiao   +8 more
doaj   +1 more source

Evolution and development of the fish jaw skeleton

open access: yesWIREs Developmental Biology, 2018
The evolution of the jaw represents a key innovation in driving the diversification of vertebrate body plans and behavior. The pharyngeal apparatus originated as gill bars separated by slits in chordate ancestors to vertebrates. Later, with the acquisition of neural crest, pharyngeal arches gave rise to branchial basket cartilages in jawless ...
openaire   +3 more sources

Rhythmic chewing with oral jaws in teleost fishes: a comparison with amniotes [PDF]

open access: yesJournal of Experimental Biology, 2010
SUMMARYIntra-oral prey processing (chewing) using the mandibular jaws occurs more extensively among teleost fishes than previously documented. The lack of muscle spindles, γ-motoneurons and periodontal afferents in fishes makes them useful for testing hypotheses regarding the relationship between these sensorimotor components and rhythmic chewing in ...
Chris, Gintof   +3 more
openaire   +2 more sources

Multiple developmental mechanisms regulate species-specific jaw size [PDF]

open access: yes, 2014
Variation in jaw size during evolution has been crucial for the adaptive radiation of vertebrates, yet variation in jaw size during development is often associated with disease.
Sklar, Rachel S   +3 more
core   +1 more source

Late Oligocene fishes (Chondrichthyes and Osteichthyes) from the Catahoula Formation in Wayne County, Mississippi, USA

open access: yesEuropean Journal of Taxonomy
Isolated elasmobranch and teleost teeth, jaws, otoliths, scales, vertebrae, and fin spines were recovered from the upper Oligocene (Chattian) Catahoula Formation in Wayne County, Mississippi, USA.
David J. Cicimurri   +4 more
doaj   +1 more source

Morphobiological characteristics of common pike (Esox lucius L.) in small reservoirs of complex purpose in Sumy and Kyiv regions

open access: yesБіологія тварин, 2022
The purpose of the work was to conduct a morphobiological analysis of common pike (Esox lucius L.) from two reservoirs similar in their parameters and conditions, and to determine the difference between the populations of these species due to various ...
M. B. Khalturyn
doaj   +1 more source

A unique Cretaceous–Paleogene lineage of piranha-jawed pycnodont fishes [PDF]

open access: yesScientific Reports, 2017
AbstractThe extinct group of the Pycnodontiformes is one of the most characteristic components of the Mesozoic and early Cenozoic fish faunas. These ray-finned fishes, which underwent an explosive morphological diversification during the Late Cretaceous, are generally regarded as typical shell-crushers.
Vullo, Romain   +8 more
openaire   +4 more sources

The Jaw Mechanism of the Sheepshead Fish [PDF]

open access: yes, 2018
Feeding Biomechanics in Sheepshead, Archosargus probatocephalus Hannah Hargrove, & Takashi Maie, Ph.D. Abstract Sheepshead fish, Archosargus probatocephalus, is a marine fish species with distinct black and white markings that is widely distributed off ...
Hargrove, Hannah
core  

Video1_Regeneration of Jaw Joint Cartilage in Adult Zebrafish.MP4 [PDF]

open access: yes, 2022
The poor intrinsic repair capacity of mammalian joint cartilage likely contributes to the high incidence of arthritis worldwide. Adult zebrafish can regenerate many structures that show limited or no healing capacity in mammals, including the jawbone. To
Joanna Smeeton (11975711)   +5 more
core   +1 more source

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