Results 71 to 80 of about 3,591 (200)

Long‐Term Habitat Use Patterns of Ray Assemblages in Coastal and Inshore Waters of the Eastern Gulf of Mexico

Marine Ecology, Volume 47, Issue 2, March/April 2026.
ABSTRACT Rays are common marine mesopredators that use coastal and estuarine habitats during multiple life history stages for critical functions. They are long‐lived, late to mature, and have low reproductive output, making them vulnerable to and slow to recover from population threats such as overfishing and habitat loss.
Julian R. Gatch, Matthew E. Kimball, Robert P. Dunn, Alan Moore, Lina Vanesa Garzón‐Peña, Angelica Barrera‐García   +5 more
wiley   +1 more source

Always chew your food: freshwater stingrays use mastication to process tough insect prey [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2016
Chewing, characterized by shearing jaw motions and high-crowned molar teeth, is considered an evolutionary innovation that spurred dietary diversification and evolutionary radiation of mammals. Complex prey-processing behaviours have been thought to be lacking in fishes and other vertebrates, despite the fact that many of these animals feed on tough ...
Matthew A. Kolmann, Kenneth C. Welch, Adam P. Summers, Nathan R. Lovejoy   +3 more
openaire   +2 more sources

Cyrilia sp. (Apicomplexa: Haemogregarinidae) in the Amazonian freshwater stingray Potamotrygon wallacei (cururu stingray) in different hydrological phases of the Rio Negro

Brazilian Journal of Biology
Intraerythrocytic parasites are frequently found in fish, including elasmobranchs. The Amazonian rivers present well defined annual hydrological cycles that results in drastic modifications of the environmental conditions with deep implications in the ...
A. T. Oliveira, M. L. G. Araújo, J. Pantoja-Lima, P. H. R. Aride, M. Tavares-Dias, R. P. Brinn, J. L. Marcon   +6 more
doaj   +1 more source

Texas coastal zone biotopes : an ecography : interim report for the Bay and Estuary Management Program (CRMP) [PDF]

, 1972
November 1972Because esthetics, biological environment and physiography are so interrelated and have changeable meanings in various environments, we are obligated to think of the environment in terms of biological change, as environmental protection is ...
Gordon, Kennith G. (Kennith Glenn), 1930-, Oppenheimer, Carl H.   +1 more
core   +1 more source

Conservation Value of Shallow‐Water Habitats for Rays Within a Long‐Standing Marine Protected Area

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Marine protected areas (MPAs) are a widely used tool in the conservation and protection of threatened marine species. When MPAs include the key habitat of species into their design, they can provide refuge and opportunity for recovery from exploitative pressures.
Ciaran A. Hyde, Peter M. Kyne, Simon J. Pierce, Zoe Carey, Scout Fisher, Jan‐Olaf Meynecke, Ross G. Dwyer   +6 more
wiley   +1 more source

Overview of the Fish Diversity of Indian Waters [PDF]

, 2018
Fishing is one of the oldest human activities and it developed gradually, when our ancestors moved from the collection of plants and animals to hunting by using tools and weapons. The oldest fishing implements so far identified are harpoons, found in
Dinesh Kumar, S, Nair, Rekha J
core  

Transboundary threats in the Mekong basin: protecting a crucial fishery [PDF]

, 2017
This repository item contains a single issue of Issues in Brief, a series of policy briefs that began publishing in 2008 by the Boston University Frederick S.
Altman, Irit
core   +1 more source

Hatching Strategies in Monogenean (Platyhelminth) Parasites that Facilitate Host Infection [PDF]

, 2011
In parasites, environmental cues may influence hatching of eggs and enhance the success of infections. The two major endoparasitic groups of parasitic platyhelminths, cestodes (tapeworms) and digeneans (flukes), typically have high fecundity, infect more
Armstrong, Bakke, Ernst, G. C. Kearn, I. D. Whittington, Kearn, Kearn, Ktari, MacDonald, MacDonald, Mooney, Ohashi, Perkins, Whittington   +13 more
core   +1 more source

The cognitive role of concept variability

Mind &Language, Volume 41, Issue 1, Page 66-87, February 2026.
I present and defend concept variability, the view that concepts can admit of indefinitely many variations and changes in their representational contents without thereby losing their identity. I argue that the variability of concepts is central to their role in enabling cognition, and thus that a concept's content variability is, despite philosophical ...
Alnica Visser
wiley   +1 more source

Morphology and paleoecology of a hybodontiform with serrated teeth, Priohybodus arambourgi, from the Late Jurassic of northeastern Brazil

The Anatomical Record, Volume 309, Issue 1, Page 5-32, January 2026.
Abstract Hybodontiformes was a diverse, successful, and important group of shark‐like chondrichthyans known from a variety of ecosystems. Some representatives of the order had a wide palaeogeographic distribution, as is the case with Priohybodus arambourgi. With a multicuspidate crown, P. arambourgi was the first hybodontiform to develop fully serrated
Estevan Eltink, Kelly Roberta da Silva, Marco Aurélio Gallo de França, Débora Melo Ferrer de Morais, Matías Soto, Christopher J. Duffin   +5 more
wiley   +1 more source