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Environmental Drivers of Fine-Scale Predator and Prey Spatial Dynamics in Sydney Harbour
Environmental Drivers of Fine-Scale Predator and Prey Spatial Dynamics in Sydney Harbour, Australia, and Adjacent Coastal Waters Niella, Y., Smoothey, A.F., Taylor, M.D. et al. ABSTRACT: Greater Sydney is the largest coastal city in Australia and is where bull sharks (Carcharhinus leucas) are present every summer and autumn. A decade of acoustic telemetry data was
Evaluating methods for estimating shark natural mortality rate
Evaluating methods for estimating shark natural mortality rate and management reference points using life-history parameters Shijie Zhou, Roy A. Deng, Matthew R. Dunn, Simon D. Hoyle, Yeming Lei, Ashley J. Williams ABSTRACT: Sharks (class Chondrichthyes, subclass Elasmobranchii) typically have a long lifespan, slow growth rate and low fecundity, leading to low productivity and hence relatively
Essential and non-essential trace element concentrations in muscle and liver of a pregnant Munk’s pygmy devil ray and its embryo
Essential and non-essential trace element concentrations in muscle and liver of a pregnant Munk’s pygmy devil ray (Mobula munkiana) and its embryo Baró-Camarasa, I., Marmolejo-Rodríguez, A.J., Cobelo-García, A. et al. ABSTRACT: During gestation, essential and non-essential trace elements are transferred from the pregnant females to embryos. This study aimed to determine and compare the concentrations
Vertical distribution of blue Shark in The Indian Ocean
Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean Fathur Rochman, Gussasta Levi Arnenda, Arief Wujdi, Roy Kurniawan ABSTRACT: Each fish species tends to choose a suitable environment suitable for its survival and reproduction horizontally and vertically. Blue shark (Prionace glauca) is the dominant catch of pelagic sharks by-catch in the Eastern Indian
Keeping abreast of shark bite reconstruction
Keeping abreast of shark bite reconstruction: a case report and brief literature review Alexander I. Murphy, Adam S. Levy, J. Simon Ivey & Jaco Festekjian ABSTRACT: Shark attack-related injuries (SARIs) are rare but may result in highly complex wounds requiring reconstruction by plastic surgeons. Here, we present an unusual case of SARI of the breast
An exploration of the population characteristics and behaviours of the white shark in Guadalupe Island
An exploration of the population characteristics and behaviours of the white shark in Guadalupe Island, Mexico (2014–2019): Observational data from cage diving vessels Omar Santana-Morales, Rebeca Zertuche-Chanes, Edgar M. Hoyos-Padilla, Chugey Sepúlveda, Edgar E. Becerril-García, Juan P. Gallo-Reynoso, Isai Barba-Acuña, Adán Mejía-Trejo, Marc Aquino-Baleytó, Oscar Sosa-Nishizaki, James T. Ketchum, Rodrigo Beas-Luna ABSTRACT: In the eastern
Grow fast, die young: Does compensatory growth reduce survival of juvenile blacktip sharks in the western Gulf of Mexico?
Grow fast, die young: Does compensatory growth reduce survival of juvenile blacktip sharks (Carcharhinus limbatus) in the western Gulf of Mexico? Philip Matich, Jeffrey D. Plumlee, Mark Fisher ABSTRACT: Effective conservation and management necessitate an understanding of the ecological mechanisms that shape species life histories in order to predict how variability in natural and anthropogenic
Diverse stem-chondrichthyan oral structures and evidence for an independently acquired acanthodid dentition
Diverse stem-chondrichthyan oral structures and evidence for an independently acquired acanthodid dentition Richard P. Dearden and Sam Giles ABSTRACT: The teeth of sharks famously form a series of transversely organized files with a conveyor-belt replacement that are borne directly on the jaw cartilages, in contrast to the dermal plate-borne dentition of bony fishes that undergoes
Quantifying shark and ray discards in Western Australia’s shark fisheries
Quantifying shark and ray discards in Western Australia’s shark fisheries Matias Braccini, Hilario Murua ABSTRACT: Commercial fisheries can discard a considerable volume of sharks and rays, which, as a group, are of high conservation concern. In Western Australia (WA), commercial shark fishing commenced in the 1940s; however, catch time series are not available for discarded
Mercury concentrations and trophic relations in sharks of the Pacific Ocean of Colombia
Mercury concentrations and trophic relations in sharks of the Pacific Ocean of Colombia Natalia Vélez, Sandra Bessudo, Dalia C. Barragán-Barrera, Felipe Ladino, Paco Bustamante, Andrea Luna-Acosta ABSTRACT: Sharks are fished for human consumption in Colombia, and fins are exported illegally to international markets. The goal was to identify differences in total mercury (THg) concentrations in
Length-weight relationship of four deep-sea chondrichthyans in Ecuadorian oceanic waters
Length-weight relationship of four deep-sea chondrichthyans (Elasmobranchii & Holocephali) in Ecuadorian oceanic waters Paulina Sepa, Dialhy Coello, Marco Herrera, René Zambrano ABSTRACT: The present work reported the length-weight relationship of four deep-sea chondrichthyan species (i.e., Hydrolagus spp., E. granulosus, C. owstonii and C. squamosus) captured by the experimental fishery of the depth cod (Dissostichus eleginoides)
Marine protected areas are not representative of chondrichthyan species assemblages in the Southwest Atlantic
Marine protected areas are not representative of chondrichthyan species assemblages in the Southwest Atlantic David E. Sabadin, Santiago A. Barbini, Daniel E. Figueroa, Luis O. Lucifora ABSTRACT: Evaluating the representativeness of species assemblages and species richness in a network of protected areas is key to reach a balanced and equitable network design. However, representativeness has
Evaluating the effects of a SharkSafe Barrier shoreline deployment on bull shark behaviour
Evaluating the effects of a SharkSafe Barrier™ shoreline deployment on bull shark (Carcharhinus leucas) behaviour Craig Patrick O’Connell, Juliet Gressle, Julia Crews, Andre A. King, Pingguo He ABSTRACT: Beach nets and drumlines are lethal devices that are used to minimize the interaction between potentially dangerous sharks and beachgoers. Mortality to these large shark species as
The Epidermal Microbiome Within An Aggregation of Leopard Sharks
The Epidermal Microbiome Within An Aggregation of Leopard Sharks (Triakis Semifasciata) Has Taxonomic Flexibility With Gene Functional Stability Across Three Time-Points Michael Doane, Colton Johnson, Shaili Johri, Emma N. Kerr, Megan M. Morris, Ric Desantiago, Abigail C. Turnlund, Asha Goodman, Maria Mora, Laís Farias Oliveira Lima, Andrew P. Nosal, Elizabeth A. Dinsdale ABSTRACT: Background: The
Sharks as exfoliators: widespread chafing between marine organisms suggests an unexplored ecological role
Sharks as exfoliators: widespread chafing between marine organisms suggests an unexplored ecological role Lacey H. Williams, Alexandra Anstett, Victor Bach Muñoz, John Chisholm, Chris Fallows, Jonathan R. Green, Jesús Erick Higuera Rivas, Gregory Skomal, Megan Winton, Neil Hammerschlag ABSTRACT: Ectosymbionts, such as bacteria and parasites, are found on the surface of organisms throughout the world’s