Results 31 to 40 of about 389 (133)
A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout
Journal of Anatomy, EarlyView.Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack +2 more
wiley +1 more source
Prevalence and Implications of “Must‐Kill” Angling Regulations for the Management of Invasive Fishes
Fisheries Management and Ecology, Volume 33, Issue 2, Page 260-270, April 2026.ABSTRACT Freshwater biodiversity is increasingly threatened by invasive species, which can disrupt native fish populations and the fisheries they support. Must‐kill regulations, which prohibit the live release of invasive fish caught by recreational anglers, are a management strategy that can be implemented to limit the negative effects of invasive ...
Kevin A. Adeli +2 more
wiley +1 more source
Comparing Aquatic Environmental DNA Collection Methods Across a Diel Cycle in a Lotic System
Environmental DNA, Volume 8, Issue 2, March/April 2026.Water samples were collected over 25 h from the Tangipahoa River, Louisiana, using active and passive environmental DNA methods to detect fish assemblages. Active sampling involved collecting water samples at hourly intervals for 25 h, whereas passive sampling deployed a stationary filter for 25 h.
Camden E. Oathout +3 more
wiley +1 more source
Papers in Palaeontology, Volume 12, Issue 1, January/February 2026.Abstract The Late Cretaceous witnessed numerous transgression–regression sequences and the onset of a global cooling phase at the start of the Campanian. In the European archipelago, these environmental changes, combined with active plate tectonics, facilitated the formation of ephemeral land bridges that served as dispersal routes for a variety of ...
Olivier Jansen +5 more
wiley +1 more source
Comparative Diets of Invasive Blue Catfish: Differences Across Rivers and Ontogenetic Stages
Ecology of Freshwater Fish, Volume 34, Issue 2, April 2025.ABSTRACT Blue Catfish (Ictalurus furcatus) are an invasive species with expanding populations in freshwater systems, posing significant ecological challenges to native fauna. To assess their potential impacts in diverse aquatic ecosystems, we examined and compared the diets of non‐native Blue Catfish from four rivers in Georgia, USA, two of which drain
Victoria D. Davis +4 more
wiley +1 more source
Revista de Biología Tropical, 2018 Larval feeding studies of both ornamental and consumable fish species are important for formulating successful management, and culture strategies for conservation purposes. In the present study, we evaluated prey selectivity for the tropical gar Atractosteus tropicus in the larval stage (first 8 weeks) using the zooplankton Artemia fransiscana, Daphnia
Luis Humberto Escalera-Vázquez +4 more
openaire +5 more sources
Advancing Environmental Flows Science: Hindcasting and Forecasting Flow–Ecology Relationships
Fisheries, Volume 49, Issue 8, Page 353-368, August 2024.To advance current environmental flow standards in Texas, we developed field, laboratory, and analytical methods to model recruitment dynamics of indicator species selected to cover a range of population responses to flow variation. Preliminary investigations were conducted in three central Texas river basins to evaluate the feasibility of these ...
Kirk O. Winemiller +10 more
wiley +1 more source
Revista de Biología Tropical, 2009 El cariotipo del pejelagarto Atractosteus tropicus se describe por medio de tinción Giemsa de 295 preparaciones cromosómicas en mitosis a partir de 120 larvas y 15 adultos (5 hembras y diez machos) de la población que habita en Tabasco, sureste de México.
Lenin Arias-Rodríguez +3 more
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Freshwater megafauna shape ecosystems and facilitate restoration
Biological Reviews, Volume 99, Issue 4, Page 1141-1163, August 2024.ABSTRACT Freshwater megafauna, such as sturgeons, giant catfishes, river dolphins, hippopotami, crocodylians, large turtles, and giant salamanders, have experienced severe population declines and range contractions worldwide. Although there is an increasing number of studies investigating the causes of megafauna losses in fresh waters, little attention
Fengzhi He +8 more
wiley +1 more source
Length‐Weight Relationships of Native and Non‐Native Fishes in the Lower Red River Catchment, USA
Journal of Applied Ichthyology, Volume 2024, Issue 1, 2024.Length‐weight relationships are useful for stock assessments and modeling alternative conservation and management strategies for both native and non‐native fishes. We developed length‐weight relationships for 18 native and non‐native riverine fishes in the lower Red River catchment.
Mariaguadalupe Vilchez +3 more
wiley +1 more source