Results 51 to 60 of about 413 (143)

A Review of the Status of Sharks, Rays and Chimaeras of Panama to Guide Research and Conservation

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 4, April 2025.
ABSTRACT Chondrichthyan fishes (sharks, rays and chimaeras) are a group of high conservation concern globally. Species are impacted by varying threats, although fishing pressure is the primary stressor causing population declines. Panama comprises both Pacific and Caribbean coastlines with a diversity of estuarine and marine habitats supporting small ...
Jorge Manuel Morales‐Saldaña, Hector M. Guzmán, Angel J. Vega, Yolani A. Robles, Luis A. Montes, Peter M. Kyne   +5 more
wiley   +1 more source

Elasmobranchs observed in deepwaters (45-330m) at Isla del Coco National Park, Costa Rica (Eastern Tropical Pacific)

Revista de Biología Tropical, 2012
Isla del Coco is an oceanic island 500km off the Pacific coast of Costa Rica. It is a National Park and its marine fauna has been relatively well protected.
Jorge Cortés, Astrid Sánchez-Jiménez, J. Alexander Rodríguez-Arrieta, Geovanna Quirós-Barrantes, Paula C. González, Shmulik Blum   +5 more
doaj   +2 more sources

Shark Tooth Forensics: A Participatory Science Initiative to Unravel Ancient Shark Ecology

The Bulletin of the Ecological Society of America, Volume 106, Issue 2, April 2025.
Abstract Studying the ecology of ancient organisms requires a tremendous amount of data, as in the case of prehistoric sharks where our knowledge is based mostly on teeth. Shark Tooth Forensics is a participatory science project tackling the problem of deciphering the ecology of ancient sharks with assistance from public school students. Traditionally,
Terry A. Gates, Robert R. Dunn, Nathaniel W. Bourne, Raya I. Boyd, Brittany Argall, Leonora Shell, Aaron Alford, Lindsay E. Zanno   +7 more
wiley   +1 more source

Fishers' interactions with endangered “rhinorays” in Karimunjawa National Park, and factors influencing willingness to engage in pro‐conservation behavior

Conservation Science and Practice, Volume 7, Issue 4, April 2025.
Abstract The “rhinorays” (giant guitarfish‐Glaucostegidae and wedgefish‐Rhinidae) are a critically endangered group of “shark‐like rays,” which have experienced steep global population declines in the past decade due to overfishing. Their slow life histories and high market value increase the risk of trade‐driven extinction and lead to trade‐offs ...
Faqih Akbar Alghozali, Ashma Hanifah, Muhammad Wiralaga Dwi Gustianto, Maula Nadia, Taufiq Qur'rohman, Kinanti Amalia Niloperbowo, Diah P. Suyanto, Muhammad Ichsan, Andhika Prasetyo, Mahardika Rizqi Himawan, Hollie Booth   +10 more
wiley   +1 more source

Continental‐Scale Assessment of Climate‐Driven Marine Species Range Extensions Using a Decade of Citizen Science Data

Diversity and Distributions, Volume 31, Issue 4, April 2025.
ABSTRACT Aim Climate‐driven extensions of species distributions have serious consequences for human wellbeing and ecosystems. The recent growth of citizen science data collection represents an underutilised resource for the early detection of marine species range extensions (i.e., expansion of species' distributions at the poleward edge) that can ...
Barrett W. Wolfe, Curtis Champion, Troy Gaston, Joshua Brown, Melinda A. Coleman, Tom R. Davis, Sven Frijlink, Thomas Hatley, Freddie J. Heather, Gary Jackson, John P. Keane, Shannon Kjeldsen, Mark McGrouther, Natalie Moltschaniwskyj, Glenn Moore, Rod Pearn, Kate R. Rodda, Jan Strugnell, Jemina Stuart‐Smith, John W. Turnbull, Sue‐Ann Watson, Gretta T. Pecl   +21 more
wiley   +1 more source

First records of the sicklefin lemon shark, Negaprion acutidens, at Palmyra Atoll, central Pacific : a recent colonization event? [PDF]

, 2014
The range of the sicklefin lemon shark (Negaprion acutidens) is expanded to include Palmyra Atoll, in the Northern Line Islands, central Pacific. Despite the fact that researchers have been studying reef and lagoon flat habitats of the Atoll since 2003 ...
Caselle, Jennifer, Bradley, Darcy, Wood, Chelsea, McCauley, Douglas, Pollock, Amanda L., Papastamatiou, Yannis   +5 more
core   +1 more source

Ecotourism increases the field metabolic rate of whitetip reef sharks

, 2016
Wildlife tourism has been shown to cause behavioural changes to numerous species. Yet, there is still little understanding if behavioural changes have consequences for health and fitness.
Payne, Nicholas L., Barnett, Adam, Fitzpatrick, Richard, Semmens, Jayson M., Payne, Nicholas   +4 more
core   +2 more sources

Balancing ecotourism and wildlife management through a conservation behavior approach

Conservation Science and Practice, Volume 7, Issue 3, March 2025.
We surveyed ecologists, conservationists, and ecotourism professionals to investigate consequences of ecotourism on animal behavior. We highlight four main behavioral themes and solutions for engendering more sustainable ecotourism that mitigates behavioral impacts.
Rachel Y. Chock, Eduardo Bessa, Josue David Arteaga‐Torres, Liv Baker, Richard Buchholz, Barbara Clucas, Cassandra Nuñez, Gabriela M. Pinho, Bruce A. Schulte, Daniel T. Blumstein, Bernard Kitheka, Alexander G. Allison, J. Edgardo Arevalo, Debra A. Hamilton, Claudio M. Monteza‐Moreno, Laney H. Nute, Javier Rodríguez‐Fonseca, Luis Sandoval, Jessica Stamn, Jennifer L. Verdolin, Lynn Von Hagen, Jimmy W. Wehsener, Brett M. Seymoure   +22 more
wiley   +1 more source

Eocene Shark Teeth From Peninsular Antarctica: Windows to Habitat Use and Paleoceanography

Paleoceanography and Paleoclimatology, Volume 39, Issue 11, November 2024.
Abstract Eocene climate cooling, driven by the falling pCO2 and tectonic changes in the Southern Ocean, impacted marine ecosystems. Sharks in high‐latitude oceans, sensitive to these changes, offer insights into both environmental shifts and biological responses, yet few paleoecological studies exist.
Gabriele Larocca Conte, Adam Aleksinski, Ashley Liao, Jürgen Kriwet, Thomas Mörs, Robin B. Trayler, Linda C. Ivany, Matthew Huber, Sora L. Kim   +8 more
wiley   +1 more source

Relative importance plots for boosted regression tree analysis of total large-bodied reef fish biomass (all species pooled) and presence/absence of key species.

, 2013
Species selection was based on maximum data density, and management and ecological importance. CAAB = Carcharhinus amblyrhynchos, LUBO = Lutjanus bohar, MASP = Macolor spp., TROB = Triaenodon obesus, NAHE = Naso hexacanthus, SCRU = Scarus rubroviolaceus,
Ivor D. Williams (331075), Benjamin L. Richards (331074), Gareth J. Williams (219143), Oliver J. Vetter (331076)   +3 more
core   +1 more source