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First detection of critically endangered scalloped hammerhead sharks in Guam in five decades
First detection of critically endangered scalloped hammerhead sharks (Sphyrna lewini) in Guam, Micronesia, in five decades using environmental DNA Alyssa M. Budd, Madalyn K. Cooper, Agnès Le Port, Tom Schils, Matthew S. Mill, Mari E. Deinhart, Roger Huerlimann, Jan M. Strugnell ABSTRACT: Among the hammerhead sharks, scalloped hammerheads (Sphyrna lewini) have undergone the steepest population
Reproductive biology of the swell shark
Reproductive biology of the swell shark Cephaloscyllium ventriosum (Carcharhiniformes: Scyliorhinidae) Stephanie Bernal‐Pérez, Rosa Isabel Ochoa‐Báez, Felipe Galván‐Magaña, Katherin Soto‐López ABSTRACT: The Cephaloscyllium ventriosum shark is present in the artisanal fisheries of elasmobranchs on the western coast of Baja California Sur, Mexico. The main characteristics of the sexual maturation of this species based on individuals captured
Drivers of Spatial Distributions of Basking Shark in the Southwest Pacific
Drivers of Spatial Distributions of Basking Shark (Cetorhinus maximus) in the Southwest Pacific Finucci Brittany, Duffy Clinton A. J., Brough Tom, Francis Malcolm P., Milardi Marco, Pinkerton Matthew H., Petersen Grady, Stephenson Fabrice ABSTRACT: Basking sharks (Cetorhinus maximus) were widely reported throughout New Zealand waters. Once commonly observed, and sometimes in large numbers, basking sharks
Improved detection sensitivity using an optimal eDNA preservation and extraction workflow and its application to threatened sawfishes
Improved detection sensitivity using an optimal eDNA preservation and extraction workflow and its application to threatened sawfishes Madalyn K. Cooper, Roger Huerlimann, Richard C. Edmunds, Alyssa M. Budd, Agnès Le Port, Peter M. Kyne, Dean R. Jerry, Colin A. Simpfendorfer ABSTRACT: Pressures on coastal ecosystems are increasing and aquatic species that are restricted to these
Large sharks exhibit varying behavioral responses to major hurricanes
Large sharks exhibit varying behavioral responses to major hurricanes L.F.G. Gutowsky, James Rider, R.P.Roemer, A.J. Gallagher, M.R. Heithause, S.J. Cooke, N. Hammerschlag ABSTRACT: Under global climate change, storm events are predicted to increase in strength and frequency. Although aquatic animals can be affected by acute natural disturbances, information on the immediate consequences of these weather
Significant differences in trophic niches of smooth hammerhead
Stable isotope and fatty acid analyses reveal significant differences in trophic niches of smooth hammerhead Sphyrna zygaena (Carcharhiniformes) among three nursery areas in northern Humboldt Current System Eduardo Segura-Cobeña, Joanna Alfaro-Shigueto, Jeffrey Mangel, Angel Urzua, Konrad Górski ABSTRACT: Fishery pressure on nursery areas of smooth hammerhead in northern Peruvian coast have become a serious threat
Annual abundance and population growth rates of white sharks off central California
Estimates of regional annual abundance and population growth rates of white sharks off central California Paul E. Kanive, Jay J. Rotella, Taylor K. Chapple, Scot D. Anderson, Timothy D. White, Barbara A. Block, Salvador J. Jorgensen ABSTRACT: Determining population trends is critical for evaluating management actions and prioritizing species protections. In this study, we used
Sightings trends and behaviour of manta rays in Fernando de Noronha Archipelago, Brazil
Sightings trends and behaviour of manta rays in Fernando de Noronha Archipelago, Brazil Nayara Bucair, Stephanie K. Venables, Ana Paula Balboni, Andrea D. Marshall ABSTRACT: Despite substantial progress in mobulid research over the past decade, knowledge gaps in manta ray ecology and behaviour remain, particularly in the South Atlantic Ocean. Opportunistic photographic and video records
Lufthansa Group and BASF roll out sharkskin technology
Published on 11 May, 2021 at 11:15 in General News | Viewed times | No Comments
Joint News Release BASFLufthansa Cargo AGLufthansa Technik 03. May 2021 — — — — — — — Nature as a role model: Lufthansa Group and BASF roll out sharkskin technology – From 2022, Lufthansa Cargo will equip all Boeing 777 freighters with AeroSHARK – Innovative surface technology from Lufthansa Technik and BASF improves fuel efficiency
Shark conservation and blanket bans in the eastern Pacific Ocean
Shark conservation and blanket bans in the eastern Pacific Ocean Gustavo A. Castellanos‐Galindo, Pilar Herrón, Andrés F. Navia, Hollie Booth ABSTRACT: Sharks are one of the most threatened marine animals, with fishing identified as the prime human activity responsible for population declines. The tropical eastern Pacific, a biogeographic region spanning the coastal areas from Mexico
Association behavior between sand tiger sharks and round scad is driven by mesopredators
Association behavior between sand tiger sharks and round scad is driven by mesopredators Nicholas C. Coleman, Erin J. Burge ABSTRACT: In marine systems, behaviorally-mediated indirect interactions between prey, mesopredators, and higher trophic-level, large predators are less commonly investigated than other ecologic interactions, likely because of inherent difficulties associated with making observations. Underwater videos (n = 216) from