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Long-Axis Rotation of Jaws of Bamboo Sharks During Suction Feeding
Long-Axis Rotation of Jaws of Bamboo Sharks (Chiloscyllium plagiosum) During Suction Feeding Bradley R Scott, Elizabeth L Brainerd, Cheryl A D Wilga ABSTRACT: Long-axis rotation (LAR) of the jaws may be an important component of vertebrate feeding mechanisms, as it has been hypothesized to occur during prey capture or food processing across diverse vertebrate groups
The influence of YouTube videos on human tolerance of sharks
The influence of YouTube videos on human tolerance of sharks J. M. Beall, L. D. Pharr, R. von Furstenberg, A. Barber, W. R. Casola, A. Vaughn, M. N. Peterson, L. R. Larson ABSTRACT: Sharks are often depicted in the media as violent killers that actively seek out opportunities to harm humans. This framing may impact
The world’s largest omnivore is a fish
The world’s largest omnivore is a fish M. G. Meekan, P. Virtue, L. Marcus, K. D. Clements, P. D. Nichols, A. T. Revill ABSTRACT: The evolution of very large body size requires a ubiquitous and abundant source of food. In marine environments the largest animals such as whale sharks are secondary consumers that filter feed
Age-Dependent Dispersal and Relatedness in Tiger Sharks
Age-Dependent Dispersal and Relatedness in Tiger Sharks (Galeocerdo cuvier) Margaret A. McClain, Neil Hammerschlag, Austin J. Gallagher, J. Marcus Drymon, R. Dean Grubbs, Tristan L. Guttridge, Matthew J. Smukall, Bryan S. Frazier, Toby S. Daly-Engel ABSTRACT: Understanding dispersal in large marine fauna is necessary for conservation, but movement patterns often vary widely by sex and
A re-examination of the growth of the gummy shark from Queensland
A re-examination of the growth of the gummy shark (Mustelus antarcticus) from Queensland, Australia Matthew J. Campbell, Cassandra L. Rigby ABSTRACT: The gummy shark (Mustelus antarcticus) is endemic to Australia and is the target of commercial fisheries in southern Australia. However, the Queensland population is subjected to low levels of fishing mortality. The present study
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 sphyrnid (hammerhead shark) 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
Understanding shark-related cognitive vulnerability and its role in shark diving
Understanding shark-related cognitive vulnerability and its role in shark diving: implications for conservation Xiaodi Yan, Maria Knight Lapinski, Meredith Gore, Lindsay Neuberger, Kate Grayson-Sneed ABSTRACT: Negative perceptions and vulnerable feelings about sharks have been one of the greatest barriers to effective shark conservation efforts. This study used a self-report survey of young adults in a
The evolution and development of shark denticles
Teeth outside the mouth: the evolution and development of shark denticles Rory L. Cooper, Ella F. Nicklin, Liam J. Rasch, Gareth J. Fraser ABSTRACT: Vertebrate skin appendages are incredibly diverse. This diversity, which includes structures such as scales, feathers, and hair, likely evolved from a shared anatomical placode, suggesting broad conservation of the early development
First report of a sleeper shark in the western Caribbean
First report of a sleeper shark (Somniosus sp.) in the western Caribbean, off the insular slope of a coral atoll Devanshi Kasana, Hector Daniel Martinez, Omar Faux, Neri Monzon, Elio Guerra, Demian D. Chapman ABSTRACT: A sleeper shark (Somniosus sp.) was captured over the insular slope at Glover’s Reef, a coral atoll in Belize. The
Distribution and population structure of the smooth-hound shark across the Canarian archipelago
Distribution and population structure of the smooth-hound shark, Mustelus mustelus (Linnaeus, 1758), across an oceanic archipelago: Combining several data sources to promote conservation Fernando Espino, José Antonio González, Néstor E Bosch, Francisco J Otero-Ferrer, Ricardo Haroun, Fernando Tuya ABSTRACT: Sharks play a key role in the structure and functioning of marine ecosystems. More ecological information
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