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Seasonal habitat use and residency of scalloped hammerhead and Galapagos sharks off Japan
First descriptions of the seasonal habitat use and residency of scalloped hammerhead (Sphyrna lewini) and Galapagos sharks (Carcharhinus galapagensis) at a coastal seamount off Japan David M. P. Jacoby, Yuuki Y. Watanabe, Tre Packard, Mark Healey, Yannis P. Papastamatiou, Austin J. Gallagher ABSTRACT: BackgroundThe Northwestern Pacific is a data-poor region for studies into the movements
Occurrence and distribution of persistent organic pollutants in the liver and muscle of Atlantic blue sharks
Occurrence and distribution of persistent organic pollutants in the liver and muscle of Atlantic blue sharks: Relevance and health risks Juan Muñoz-Arnanz, Alice Bartalini, Luis Alves, Marco FL. Lemos, Sara C. Novais, Begoña Jiménez ABSTRACT: Blue shark score among the most abundant, widely distributed and worldwide consumed elasmobranchs. In this work contents of PCBs, PCDD/Fs
Length-weight and length-length relationships for eight shark species from Indonesian waters
Length-weight and length-length relationships for eight shark species from Indonesian waters Wanwan Kurniawan, Selvia Oktaviyani, Suparmo, Fahmi ABSTRACT: Length-weight and length-length relationships (LWRs and LLRs) for eight species of sharks were estimated using fish specimens caught in commercial fishery during 2018–2021 and landed at three fishing ports (Tanjung Luar Fish Landing Port-Lombok, Muncar Coastal Fishing
Conservation potential of international trade regulations for coastal sharks
Two thirds of species in a global shark fin trade hub are threatened with extinction: Conservation potential of international trade regulations for coastal sharks Diego Cardeñosa, Stanley K. Shea, Huarong Zhang, Gunter A. Fischer, Colin A. Simpfendorfer, Demian D. Chapman ABSTRACT: One third of chondrichthyan species (sharks, rays, and chimeras) are threatened with extinction, mainly
Effect of body size, feeding ecology and maternal transfer on mercury accumulation of vulnerable silky shark
Effect of body size, feeding ecology and maternal transfer on mercury accumulation of vulnerable silky shark Carcharhinus falciformis in the eastern tropical pacific Zezheng Li, Heidi R. Pethybridge, Yi Gong, Feng Wu, Xiaojie Dai, Yunkai Li ABSTRACT: The silky shark Carcharhinus falciformis is a large pelagic species distributed in the global oceans and was recently
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
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
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)