Results 11 to 20 of about 41,791 (189)

Assessing the genetic diversity in Argopecten nucleus (Bivalvia: Pectinidae), a functional hermaphrodite species with extremely low population density and self-fertilization: Effect of null alleles. [PDF]

Ecol Evol, 2020
The microsatellite markers exhibited high levels of genetic diversity in the Argopecten nucleus population of Neguanje Bay (Santa Marta, Colombia), but also indicated a high homozygosity, suggesting the occurrence of the self‐fertilization associated with the low‐population densities reported for the species. Abstract Argopecten nucleus is a functional
Barros J, Winkler FM, Velasco LA.
europepmc   +2 more sources

Linking extinction risk to the economic and nutritional value of sharks in small-scale fisheries. [PDF]

Conserv Biol
Abstract To achieve sustainable shark fisheries, it is key to understand not only the biological drivers and environmental consequences of overfishing, but also the social and economic drivers of fisher behavior. The extinction risk of sharks is highest in coastal tropical waters, where small‐scale fisheries are most prevalent.
Temple AJ, Berggren P, Jiddawi N, Wambiji N, Poonian CNS, Salmin YN, Berumen ML, Stead SM.   +7 more
europepmc   +2 more sources

Red‐list status and extinction risk of the world's whales, dolphins, and porpoises

Conservation Biology, Volume 37, Issue 5, October 2023., 2023
Abstract To understand the scope and scale of the loss of biodiversity, tools are required that can be applied in a standardized manner to all species globally, spanning realms from land to the open ocean. We used data from the International Union for the Conservation of Nature Red List to provide a synthesis of the conservation status and extinction ...
Gill T. Braulik, Barbara L. Taylor, Gianna Minton, Giuseppe Notarbartolo di Sciara, Tim Collins, Lorenzo Rojas‐Bracho, Enrique A. Crespo, Louisa S. Ponnampalam, Michael C. Double, Randall R. Reeves   +9 more
wiley   +1 more source

Effects of forest cover on richness of threatened fish species in Japan

Conservation Biology, Volume 36, Issue 3, June 2022., 2022
Abstract Estuaries––one of the most vulnerable ecosystems globally––face anthropogenic threats, including biodiversity loss and the collapse of sustainable fisheries. Determining the factors contributing to the maintenance of estuarine biodiversity, especially that of fish, is vital for promoting estuarine conservation and sustainability.
Edouard Lavergne, Manabu Kume, Hyojin Ahn, Yumi Henmi, Yuki Terashima, Feng Ye, Satoshi Kameyama, Yoshiaki Kai, Kohmei Kadowaki, Shiho Kobayashi, Yoh Yamashita, Akihide Kasai   +11 more
wiley   +1 more source

Prioritizing forest management actions to benefit marine habitats in data‐poor regions

Conservation Biology, Volume 36, Issue 2, April 2022., 2022
Abstract Land‐use change is considered one of the greatest human threats to marine ecosystems globally. Given limited resources for conservation, we adapted and scaled up a spatially explicit, linked land–sea decision support tool using open access global geospatial data sets and software to inform the prioritization of future forest management ...
Jade M. S. Delevaux, Kostantinos A. Stamoulis   +1 more
wiley   +1 more source

Effects of human footprint and biophysical factors on the body‐size structure of fished marine species

Conservation Biology, Volume 36, Issue 2, April 2022., 2022
Abstract Marine fisheries in coastal ecosystems in many areas of the world have historically removed large‐bodied individuals, potentially impairing ecosystem functioning and the long‐term sustainability of fish populations. Reporting on size‐based indicators that link to food‐web structure can contribute to ecosystem‐based management, but the ...
Nestor E. Bosch, Jacquomo Monk, Jordan Goetze, Shaun Wilson, Russell C. Babcock, Neville Barrett, Jock Clough, Leanne M. Currey‐Randall, David V. Fairclough, Rebecca Fisher, Brooke A. Gibbons, David Harasti, Euan S. Harvey, Michelle R. Heupel, Jamie L. Hicks, Thomas H. Holmes, Charlie Huveneers, Daniel Ierodiaconou, Alan Jordan, Nathan A. Knott, Hamish A. Malcolm, Dianne McLean, Mark Meekan, Stephen J. Newman, Ben Radford, Matthew J. Rees, Benjamin J. Saunders, Conrad W. Speed, Michael J. Travers, Corey B. Wakefield, Thomas Wernberg, Tim J. Langlois   +31 more
wiley   +1 more source

Threats of illegal, unregulated, and unreported fishing to biodiversity and food security in the Republic of the Congo

Conservation Biology, Volume 35, Issue 5, Page 1463-1472, October 2021., 2021
Abstract Illegal, unregulated, and unreported (IUU) fishing poses a major threat to effective management of marine resources, affecting biodiversity and communities dependent on these coastal resources. Spatiotemporal patterns of industrial fisheries in developing countries are often poorly understood, and global efforts to describe spatial patterns of
Philip D. Doherty, Benoit C. Atsango, Gaston Ngassiki, Appolinaire Ngouembe, Nathalie Bréheret, Eva Chauvet, Brendan J. Godley, Lucie Machin, Baudelaire Dissondet Moundzoho, Richard J. Parnell, Kristian Metcalfe   +10 more
wiley   +1 more source

Reverse diel vertical movements of oceanic manta rays off the northern coast of Peru and implications for conservation

Ecological Solutions and Evidence, Volume 2, Issue 1, January–March 2021., 2021
Manta photo supplied by Stephanie Venables Recovered satellite tags revealed fine‐scale reverse diel vertical movements of oceanic manta rays in the coastal and highly stratified waters of northern Peru. Movements appeared to be driven by a strategy of foraging and thermal recovery.
Samantha Andrzejaczek, Robert J. Schallert, Kerstin Forsberg, Natalie S. Arnoldi, Mariano Cabanillas‐Torpoco, Wilmer Purizaca, Barbara A. Block   +6 more
wiley   +1 more source

A Low‐Cost Sensor for Detecting Illicit Discharge in Sewerage

Journal of Sensors, Volume 2021, Issue 1, 2021., 2021
The presence of illicit discharges in sewerage systems generates an important impact in wastewater treatment plants and the ecosystem. In this paper, we present two prototypes for monitoring the presence of solids in wastewater and to study the effect of the water height.
Javier Rocher, Mar Parra, Lorena Parra, Sandra Sendra, Jaime Lloret, Jesús Mengual, Carlos Michel   +6 more
wiley   +1 more source

Resultados paleoceanográficos deducidos a partir del contenido en diatomeas de los sedimentos siliceos miocenos («moronitas») en la Cuenca del Guadalquivir

Estudios Geologicos, 1995
Durante una parte del Mioceno (Langhiense medio-Tortoniense medio) tuvo lugar en actual Cuenca del Guadalquivir la formación de sedimentos con diatomeas («moronitas»).
Mª J. López García
doaj   +1 more source