An Automated Framework Based on Deep Learning for Shark Recognition

An Automated Framework Based on Deep Learning for Shark Recognition Nhat Anh Le, Jucheol Moon, Christopher G. Lowe, Hyun-Il Kim, Sang-Il Choi ABSTRACT: The recent progress in deep learning has given rise to a non-invasive and effective approach for animal biometrics. These modern techniques allow researchers to track animal individuals on a large-scale image database.

Blackmouth catshark as a sentinel of plastic waste on the seabed

Ask the shark: blackmouth catshark (Galeus melastomus) as a sentinel of plastic waste on the seabed Alice Sbrana, Alessandro Cau, Davide Cicala, Simone Franceschini, Tommaso Giarrizzo, Maria Flavia Gravina, Alessandro Ligas, Giulia Maiello, Marco Matiddi, Antonio Parisi, Paolo Sartor, Mario Sbrana, Umberto Scacco, Tommaso Valente, Claudio Viva, Tommaso Russo ABSTRACT: The presence of plastic waste

DNA Barcoding and Species Delimitation for Dogfish Sharks

DNA Barcoding and Species Delimitation for Dogfish Sharks Belonging to the Squalus Genus (Squaliformes: Squalidae) Ariza, A.A.; Adachi, A.M.C.L.; Roque, P.; Hazin, F.H.V.; Vianna, M.; Rotundo, M.M.; Delpiani, S.M.; de Astarloa, J.M.D.; Delpiani, G.; Oliveira, C.; Foresti, F.; Cruz, V.P. ABSTRACT: The Squalus genus comprises a group of small demersal sharks occurring circumglobally, popularly known

Morphological pattern of the dermal denticles of the Southern sawtail catshark

Morphological pattern of the dermal denticles of the Southern sawtail catshark Galeus mincaronei Soto, 2001 Marioxis Macías-Cuyare, María Cristina Oddone ABSTRACT: Dermal denticles cover the skin of sharks for protection and may have additional functions, depending on the environment. The aim of the present study was to analyze the morphological pattern of dermal denticles across

The Australian Shark-Incident Database for quantifying temporal and spatial patterns of shark-human conflict

The Australian Shark-Incident Database for quantifying temporal and spatial patterns of shark-human conflict Madeline Riley, Phoebe Meagher, Charlie Huveneers, Jacob Leto, Victor M. Peddemors, David Slip, John West, Corey J. A. Bradshaw ABSTRACT: We describe the Australian Shark-Incident Database, formerly known as the Australian Shark-Attack File, which contains comprehensive reports of 1,196 shark bites that

Results of the 2022 Alabama Deep Sea Fishing Rodeo

89th Annual Alabama Deep Sea Fishing Rodeo Location: Dauphin Island, Alabama, USADate: 15.-17. July 2022 — Leaderboard – Shark Category No. 1Species: Tiger Shark (Galeocerdo cuvier)Weight: 674.2 lbsAngler: James Mullek-Russell No. 2Species: Tiger Shark (Galeocerdo cuvier)Weight: 658.4 lbsAngler: Ethan Miller No. 3Species: Tiger Shark (Galeocerdo cuvier)Weight: 630.8 lbsAngler: Brett Rutledge No. 4Species: Tiger Shark (Galeocerdo

Greenpeace Report: Hooked on Sharks

HOOKED ON SHARKS:THE EU FISHING FLEETS FUELLING THE GLOBAL SHARK TRADE Published by Greenpeace UK and Greenpeace SpainJuly 2022 Main findings EU distant water fleets from Portugal and Spain are deliberately targeting juvenile (baby) shark breeding grounds. The EU, along with the Spanish and Portuguese governments, have both consistently resisted attempts to improve the management

Alabama Deep Sea Fishing Rodeo Reintroduces Shark Category

Press Release Alabama Deep Sea Fishing Rodeo 14. July 2022 — — — — — — — — Shark Research & Data Collection Information at the 89th Annual Alabama Deep Sea Fishing Rodeo Anglers, Sponsors, Patrons. It has been brought to our attention that there are groups and individuals in protest of our decision to

Clashing conservation values: The social complexities of shark depredation

Clashing conservation values: The social complexities of shark depredation Kristin Hoel, Andrew Chin, Jacqueline Laub ABSTRACT: Human-wildlife conflicts (HWC) are increasingly prominent worldwide, which can complicate conservation efforts for wildlife. Shark depredation, when a shark preys on a fishers’ catch, is a growing HWC in global fisheries and is particularly contentious in Queensland, Australia, causing

Aerial photogrammetry of whale sharks in the Bay of La Paz

Aerial photogrammetry of whale sharks (Rhincodon typus) in the Bay of La Paz, using an unoccupied aerial vehicle Darren A. Whitehead, Kathryn A. Ayres, Joel H. Gayford, James T. Ketchum, Felipe Galván-Magana, Fredrik Christiansen ABSTRACT: Measurements obtained from aerial imagery can be used to calculate body shape, condition and growth rates of large surface-associated marine

Determination of Fluorine Distribution in Shark Teeth

Determination of Fluorine Distribution in Shark Teeth by Laser Induced Breakdown Spectroscopy Benjamin T Manard, Christopher J Hintz, C Derrick Quarles, Jr, William Burns, N Alex Zirakparvar, Daniel R Dunlap, Toya Beiswenger, Alicia M Cruz-Uribe, Joseph A Petrus, Cole R Hexel ABSTRACT: Quantifying the chemical composition of fast-growing hard tissues in the environment can shed

Microstructure of the Bonnethead Shark Olfactory Rosette

Microstructure of the Bonnethead Shark (Sphyrna tiburo) Olfactory Rosette Lauren E Simonitis, Christopher D Marshall ABSTRACT: The unusual shape of sphyrnids (hammerhead sharks) heads has led to many functional hypotheses of potential sensory advantages and enhanced olfactory performance. Recent investigations into the flow of water within the sphyrnid olfactory chamber demonstrate that this complex structure

Wonders of the Mekong: 300-kilo stingray sets world record for largest freshwater fish

Tooth Development: What sharks and mammals share

Tooth Development: What sharks and mammals share Sophie Pantalacci The tooth shape of sharks and mice are regulated by a similar signaling center despite their teeth having very different geometries. eLife 11:e80392. DOI: 10.7554/eLife.80392 SOURCE (OPEN ACCESS)

Taxonomic Identification of Two Poorly Known Lantern Shark Species

Taxonomic Identification of Two Poorly Known Lantern Shark Species Based on Mitochondrial DNA From Wet-Collection Paratypes Stefanie Agne, Gavin J. P. Naylor, Michaela Preick, Lei Yang, Ralf Thiel, Simon Weigmann, Johanna L. A. Paijmans, Axel Barlow, Michael Hofreiter, Nicolas Straube ABSTRACT: Etmopteridae (lantern sharks) is the most species-rich family of sharks, comprising more than 50