Results 11 to 20 of about 1,246 (174)

A Terrestrial Thermometer Using Carbonate Clumped Isotopes From Gar Scales

open access: yesGeochemistry, Geophysics, Geosystems
We present a new clumped isotope calibration relating temperature to the Δ47 composition of the bioapatite scales of gar fish (Lepisosteidae family). Modern gars live at
Katelyn E. Gray, Mark T. Brandon
doaj   +2 more sources

Fitting fangs in a finite face: A novel fang accommodation strategy in a 280-million-year-old ray-finned fish. [PDF]

open access: yesJ Anat, 2023
Left jaws of †Brazilichthys macrognathus (DGM 1061‐P) in mesial view. Palatoquadrate sectioned to expose the fenestration of the maxilla and the fangs of the lower jaw (in red). Scale bar = 10 mm. Abstract Though Paleozoic ray‐finned fishes are considered to be morphologically conservative, we report a novel mode of fang accommodation (i.e., the ...
Figueroa RT, Andrews JV.
europepmc   +2 more sources

First record of exotic alligator gar, Atractosteus spatula (Actinopterygii: Lepisosteiformes: Lepisosteidae), from Ganga River system, India: A possible threat to indigenous riverine fish diversity [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2021
A new record of an exotic alligator gar, Atractosteus spatula (Lacepède, 1803), from an open wetland of the Ganga River was presented in this paper and discussed along with the environmental parameters.
Ranjan Kumar Manna   +5 more
doaj   +3 more sources

River connectivity increases the diversity of fish communities in gravel pit lakes

open access: yesTransactions of the American Fisheries Society, Volume 152, Issue 5, Page 550-576, September 2023., 2023
Abstract Objective Off‐channel floodplain features are important components of a river system that provide habitat and boost regional species pools, but river–floodplain connectivity is disrupted by anthropogenic activities. The Campbell Lakes in Harrison, Ohio, are formerly isolated gravel pits along the Whitewater River and are connected to the river
Audrey R. Laiveling   +2 more
wiley   +1 more source

Advances in remote sensing of freshwater fish habitat: A systematic review to identify current approaches, strengths and challenges

open access: yesFish and Fisheries, Volume 24, Issue 5, Page 829-847, September 2023., 2023
Abstract Remote sensing technology offers the ability to derive information on freshwater fish habitats across broad geographic areas and has the potential to transform approaches to monitoring. However, the numerous platforms, sensors and analytical software that are available may overwhelm those interested in utilizing this important technology and ...
Spencer Dakin Kuiper   +3 more
wiley   +1 more source

Long‐term patterns in inland fish kills associated with cold‐shock and winter stress: a regional case study from Texas

open access: yesJournal of Fish Biology, Volume 103, Issue 3, Page 472-480, September 2023., 2023
Abstract Colder water temperatures are generally regarded as a stressful period for fishes (i.e., winter stress syndrome), which can be exacerbated by cold‐shock stress associated with major arctic freezes. Although cold‐shock stress and mass mortalities are well documented for coastal marine fishes, few studies report the effects of winter stress or ...
Steven G. Lopez   +4 more
wiley   +1 more source

Assessment of listing and categorisation of animal diseases within the framework of the Animal Health Law (Regulation (EU) No 2016/429): infectious pancreatic necrosis (IPN)

open access: yesEFSA Journal, Volume 21, Issue 6, June 2023., 2023
Abstract Infectious pancreatic necrosis (IPN) was assessed according to the criteria of the Animal Health Law (AHL), in particular, the criteria of Article 7 on disease profile and impacts, Article 5 on its eligibility to be listed, Annex IV for its categorisation according to disease prevention and control rules as in Article 9, and Article 8 for ...
EFSA Panel on Animal Health and Welfare (AHAW)   +29 more
wiley   +1 more source

First Japanese Record of Argulus nobilis (Crustacea: Branchiura: Argulidae), an Ectoparasite of Gars of North American Origin

open access: yesSpecies Diversity, 2023
Argulus nobilis Thiele, 1904 is an ectoparasite of gars (Lepisosteidae) in the U.S.A. Five female specimens of A. nobilis were found in the collection of the Lake Biwa Museum, Japan.
Kazuya Nagasawa
doaj   +1 more source

Overlooked Invaders? Ecological Impacts of Non‐Game, Native Transplant Fishes in the United States

open access: yesFisheries, Volume 48, Issue 2, Page 62-71, February 2023., 2023
Nonnative fishes can cause ecological impacts as invasive species, but identifying which nonnative species have harmful impacts is critical to prioritizing management and policy responses. Here, we characterized the state of knowledge on the impacts of a possibly overlooked group of invasive species in the United States: non‐game native transplant ...
Jordan H. Hartman, Eric R. Larson
wiley   +1 more source

Development and validation of two environmental DNA assays for American Eel (Anguilla rostrata)

open access: yesEnvironmental DNA, Volume 5, Issue 1, Page 175-190, January 2023., 2023
We developed and validated two species‐specific qPCR markers to detect American Eel environmental DNA. Each marker was highly specific (no amplification using 124 differing spp.) and sensitive (LOD and LOQ values of 2.8‐50 copies) to American Eel DNA. In‐situ testing of water samples collected from 35 sites on the East Coast revealed that sites (n = 11)
Gregory R. Moyer   +4 more
wiley   +1 more source

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