Results 21 to 30 of about 1,766 (185)

Surface and subsurface oceanographic features drive forage fish distributions and aggregations: Implications for prey availability to top predators in the US Northeast Shelf ecosystem

Ecology and Evolution, Volume 13, Issue 7, July 2023., 2023
Forage fishes are a critical food web link in marine ecosystems, forming surface‐level forage fish aggregations (FFAs) that represent a concentrated source of available prey for surface‐ and shallow‐foraging marine predators. We used hierarchical Bayesian models to examine the oceanographic drivers of forage fish community distributions from bottom ...
Chandra Goetsch, Julia Gulka, Kevin D. Friedland, Arliss J. Winship, Jeff Clerc, Andrew Gilbert, Holly F. Goyert, Iain J. Stenhouse, Kathryn A. Williams, Julia R. Willmott, Melinda L. Rekdahl, Howard C. Rosenbaum, Evan M. Adams   +12 more
wiley   +1 more source

Northeast Pacific eelgrass fish communities characterized by environmental DNA represent local diversity and show habitat specificity

Environmental DNA, Volume 5, Issue 4, Page 706-722, July 2023., 2023
We surveyed eelgrass fishes in the Drakes Estero of Point Reyes National Seashore, Marin County, California by using environmental DNA. We also performed a literature review and seined fishes at one site in the estuary to identify the local and regional species pool.
Deanna S. Beatty, Emma Deen, Collin Gross, John J. Stachowicz   +3 more
wiley   +1 more source

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

Fisheries, 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

Age and growth of three Odontesthes species from Southern Brazil (Atherinopsidae), with reference to phylogenetic constraints in their life-history [PDF]

Brazilian Journal of Biology, 2003
The age and growth of three silverside species are described, and a discussion on possible phylogenetic constraints on life-history characteristics is presented.
F. G. Becker, W. Bruschi Jr., A. C. Peret   +2 more
doaj   +1 more source

Length–weight relation for seven Neotropical freshwater fish species (Actinopterygii) endemic to Central America [PDF]

Acta Ichthyologica et Piscatoria, 2022
In the presently reported study, we estimated length–weight relation (LWRs) for seven species of freshwater fishes from Central America. Samples were collected using seines from 60 sites across Nicaragua, Costa Rica, and Panama during field expeditions ...
Justin C. Bagley, Maria Florencia Breitman, Jerald B. Johnson   +2 more
doaj   +3 more sources

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

Environmental 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, Meredith L. Bartron, Heather S. Galbraith, Josh Grassi, Christopher B. Rees   +4 more
wiley   +1 more source

The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States and Mexico

Journal of Biogeography, Volume 49, Issue 6, Page 1193-1203, June 2022., 2022
Abstract Aim Migratory freshwater fishes are those that must access discrete habitats to complete their life cycles. Freshwater fish migrations occur around the world and provide numerous ecosystem services for humans and natural systems; however, many migratory species are in decline globally.
Emily M. Dean, Arthur R. Cooper, Lizhu Wang, Wesley Daniel, Solomon David, Clayton Ernzen, Keith B. Gido, Edward Hale, Tim J. Haxton, William Kelso, Nancy Leonard, Chris Lido, Joseph Margraf, Michael Porter, Casey Pennock, David Propst, Jared Ross, Michelle D. Staudinger, Gary Whelan, Dana M. Infante   +19 more
wiley   +1 more source

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

Fish and Fisheries, Volume 22, Issue 3, Page 467-488, May 2021., 2021
Abstract Microplastics (MPs) are small, plastic particles of various shapes, sizes and polymers. Although well studied in marine systems, their roles and importance in freshwater environments remain uncertain. Nevertheless, the restricted ranges and variable traits of freshwater fishes result in their communities being important receptors and strong ...
Ben Parker, Demetra Andreou, Iain D. Green, J. Robert Britton   +3 more
wiley   +1 more source

Helminth parasites of alien freshwater fishes in Patagonia (Argentina) [PDF]

, 2018
A survey of the helminth parasites of alien freshwater fishes from Argentinean Patagonia is presented, based on samples taken from 2010 to 2017 and including previous published records.
Flores, Verónica Roxana, Rauque Perez, Carlos Alejandro, Salgado Maldonado, Guillermo, Vega, Rocío Marisol, Viozzi, Gustavo Pedro, Waicheim, María Agustina   +5 more
core   +1 more source

Lordosis in topsmelt Atherinops affinis (Ayres, 1860) (Teleostei: Atherinopsidae) [PDF]

Revista de biología marina y oceanografía, 2001
Se describe por primera vez un caso de lordosis (curvatura de la columna vertebral) en el pejerrey Atherinops affinis, a partir de un ejemplar recolectado en la Laguna Ojo de Liebre, Baja California Sur, Mexico.
De La Cruz-Agüero, José, Perezgómez-Alvarez, Liduvina   +1 more
openaire   +2 more sources