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Feeding ecology has shaped the evolution of modern sharks
Feeding ecology has shaped the evolution of modern sharks Mohamad Bazzi, Nicolás E. Campione, Benjamin P. Kear, Catalina Pimiento, Per E. Ahlberg SUMMARY: Sharks are iconic predators in today’s oceans, yet their modern diversity has ancient origins. In particular, present hypotheses suggest that a combination of mass extinction, global climate change, and competition has regulated
Mercury and Cadmium Concentrations in Muscle Tissue of the Blue Shark
Mercury and Cadmium Concentrations in Muscle Tissue of the Blue Shark (Prionace glauca) in the Central Eastern Pacific Ocean Rubén D Castro-Rendón, Marcos D Calle-Morán, Isabel García-Arévalo, Alfredo Ordiano-Flores, Felipe Galván-Magaña ABSTRACT: Blue sharks (Prionace glauca) are an important resource in Ecuador’s fisheries; however, biological and ecological information of this species in the area is
Elasmobranch Responses to Experimental Warming, Acidification, and Oxygen Loss
Elasmobranch Responses to Experimental Warming, Acidification, and Oxygen Loss—A Meta-Analysis Catarina Pereira Santos, Eduardo Sampaio, Beatriz P. Pereira, Maria Rita Pegado, Francisco O. Borges, Carolyn R. Wheeler, Ian A. Bouyoucos, Jodie L. Rummer, Catarina Frazão Santos, Rui Rosa ABSTRACT: Despite the long evolutionary history of this group, the challenges brought by the Anthropocene have been
Whale shark rhodopsin adapted to its vertically wide-ranging lifestyle
Whale shark rhodopsin adapted to its vertically wide-ranging lifestyle Kazuaki Yamaguchi, Mitsumasa Koyanagi, Keiichi Sato, Akihisa Terakita, Shigehiro Kuraku ABSTRACT: Spectral tuning of visual pigments often facilitates adaptation to new environments, and it is intriguing to study the visual ecology of pelagic sharks with expanded habitats. The whale shark, which dives into the deep sea
Preparation and Evaluation of the Curative Effect of Blue Shark Skin Collagen Composite Gel
Preparation and Evaluation of the Curative Effect of Blue Shark (Prionace glauca) Skin Collagen Composite Gel in a Rat Oral Ulcers Model Huang, Meineng; Jiang, Sheng; Chen, Tong; Han, Xu; Yang, Xinyu; Quan, Zhizen; Yuan, Yang; Li, Jing; Deng, Kehan; Li, Tiejun ; Cao, Zhizhong; Wei, Yibo ; ABSTRACT: Objective: To evaluate the curative effect
Demon Monsters or Misunderstood Casualties?
Demon Monsters or Misunderstood Casualties? Writing about Sharks in Australia Donna Lee Brien ABSTRACT: Over the past century, many books for general readers have styled sharks as “monsters of the deep” (Steele). In recent decades, however, at least some writers have also turned to representing how sharks are seriously threatened by human activities. At a
The sharks and rays of Palau
The sharks and rays of Palau: biological diversity, status, and social and cultural dimensions Katelyn Hari, Vanessa Jaiteh B, Andrew Chin ABSTRACT: Anthropogenic pressures have been increasing on shark and ray populations globally, and their conservation and management can be compromised by lack of information on their diversity and status of species. This study presents
Nanolatticed Architecture Mitigates Damage in Shark Egg Cases
Nanolatticed Architecture Mitigates Damage in Shark Egg Cases Rubayn Goh, Scott P. O. Danielsen, Eric Schaible, Robert M. McMeeking, J. Herbert Waite ABSTRACT: Structural versatility and multifunctionality of biological materials have resulted in countless bioinspired strategies seeking to emulate the properties of nature. The nanostructured egg case of swell sharks is one of the toughest
Small localized breeding populations in a widely distributed coastal shark species
Small localized breeding populations in a widely distributed coastal shark species B.D. Postaire, K. A. Feldheim, G. M. Clementi, J. Quinlan, M. P. M. van Zinnicq Bergmann, E. J. Brooks, R. D. Grubbs, T. L. Guttridge, A. C. Henderson, R. Tavares, D. D. Chapman ABSTRACT: Identifying the geographical scale at which natural populations structure themselves
Bias-corrected citizen science data inform habitat suitability for the angelshark
Modelling Critically Endangered marine species: Bias-corrected citizen science data inform habitat suitability for the angelshark (Squatina squatina) Nicola Noviello, Christopher McGonigle, David M. P. Jacoby, Eva K. M. Meyers, David Jiménez-Alvarado, Joanna Barker ABSTRACT: As an increasingly important resource in ecological research, citizen scientists have proven dynamic and cost-effective in the supply of data for
Microplastics in fecal samples of whale sharks
Microplastics in fecal samples of whale sharks (Rhincodon typus) and from surface water in the Philippines Yong, M.M.H., Leistenschneider, C., Miranda, J.A. et al. ABSTRACT: Marine plastic abundance has increased over the past 60 years and microplastics (< 5 mm) constitute a primary component of such litter. Filter-feeding megafauna, such as the whale shark, might be particularly affected
Portuguese Artisanal Fishers’ Knowledge About Elasmobranchs
Portuguese Artisanal Fishers’ Knowledge About Elasmobranchs—A Case Study Priscila M. Silva, Célia M. Teixeira, Cristina Pita, Henrique N. Cabral, Susana França ABSTRACT: The high economic value of fisheries was historically associated to commercial teleost fishes. Since the 1970s, despite some elasmobranchs becoming an important target or a bycatch, relatively little research has been carried out
The Impact of Short-Term Shark Liver Oil Supplementation on the Fatty Acid Composition of Erythrocyte Membranes
The Impact of Short-Term Shark Liver Oil Supplementation on the Fatty Acid Composition of Erythrocyte Membranes Zakrzewska, K.; Oszajca, K.; Zep, W.; Piekarska, A.; Sidorkiewicz, M. ABSTRACT: Fatty acid (FA) balance is strictly related to human health. The composition of fatty acids in lipid membranes seems to be influenced by diet. Shark liver oil (SLO)
Ecological risk assessment of elasmobranchs caught in the Gulf of Papua prawn fishery
Ecological risk assessment of elasmobranchs caught in the Gulf of Papua prawn fishery Leontine Baje, Andrew Chin, William T. White, Colin A. Simpfendorfer ABSTRACT: One-third of all elasmobranch species currently known to occur in Papua New Guinea are taken as bycatch in the Gulf of Papua trawl fishery. An ecological risk assessment was conducted on
Sharks and New Zealand news media
Sharks and New Zealand news media Oscar Schouten Reid, Fabien Medvecky ABSTRACT: Sharks are among the most feared animals in the world. Sharks are also among the most misrepresented. Historically, mass media has disproportionately portrayed sharks as deadly and dangerous human killers through melodramatic headlines, sensationalised stories and overly graphic accounts. This study builds on