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Individual haplotyping of whale sharks from seawater environmental DNA
Individual haplotyping of whale sharks from seawater environmental DNA Laurence Dugal, Luke Thomas, Mads Reinholdt Jensen, Eva Egelyng Sigsgaard, Tiffany Simpson, Simon Jarman, Philip Francis Thomsen, Mark Meekan ABSTRACT: Population genetic data can provide valuable information on the demography of a species. For rare and elusive marine megafauna, samples for generating the data are traditionally
Shark VNAR antibodies neutralize SARS-CoV-2 infection
Single domain shark VNAR antibodies neutralize SARS-CoV-2 infection in vitro Aziz Gauhar, Cyril V Privezentzev, Mykhaylo Demydchuk, Tanja Gerlza, Julia Rieger, Andreas J Kungl, Frank S Walsh, J Lynn Rutkowski, Pawel Stocki ABSTRACT: Single domain shark VNAR antibodies can offer a viable alternative to conventional Ig-based monoclonal antibodies in treating COVID-19 disease during the current
Approaching the “real” state of elasmobranch fisheries and trade
Approaching the “real” state of elasmobranch fisheries and trade: A case study from the Mediterranean I. Giovos, R.N. Aga Spyridopoulou, N. Doumpas, K. Glaus, P. Kleitou, Z. Kazlari, D. Katsada, D. Loukovitis, I. Mantzouni, M. Papapetrou, Y.P. Papastamatiou, D.K. Moutopoulos ABSTRACT: Elasmobranchs are sensitive marine species due to their K-strategic life characteristics in combination with
Effects of climate-change driven gradual and acute temperature changes on shark and ray species
Effects of climate-change driven gradual and acute temperature changes on shark and ray species Geoffrey J. Osgood, Easton R. White, Julia K. Baum ABSTRACT: Climate change is altering distributions and abundances of marine species through both gradual and acute changes in temperature and productivity. Due to their high mobility and metabolic rates, elasmobranchs (sharks and
Results of the 2021 Freeport Hudson Anglers Shark Tournament
Published on 2 Jul, 2021 at 10:33 in Sport fishing | Viewed times | 1 Comment
48th Annual Freeport Hudson Anglers Shark Tournament Location: Guy Lombardo Marina, Freeport, Long Island, New York, USADate: 18. – 19. June 2021 WINNERS: 1st PlaceSpecies: Thresher shark (Alopias vulpinus)Weight: 345 lbsBoat: Our PassionCaptain: Jacob D’OttavioAngler: Jacob D’OttavioPrize money: $42,065 2nd PlaceSpecies: Thresher shark (Alopias vulpinus)Weight: 233.4 lbsBoat: No TimeCaptain: Nick SeveneAngler: John FarrenPrize money: $5,771
Identifying shark species responsible for fisheries depredation off Southeast Queensland, Australia
Identifying shark species responsible for fisheries depredation off Southeast Queensland, Australia Jaeden L Vardon, Samuel M Williams, Daniel J Bucher, Jess A T Morgan ABSTRACT: Anecdotal reports from fishers in Southeast Queensland, Australia suggest that shark depredation is a significant issue, however little is known about which species are responsible for depredating catches. This research
Ocean warming impairs the predator avoidance behaviour of elasmobranch embryos
Ocean warming impairs the predator avoidance behaviour of elasmobranch embryos Daniel M Ripley, Sara De Giorgio, Kirstin Gaffney, Lowri Thomas, Holly A Shiels ABSTRACT: Embryogenesis is a vulnerable stage in elasmobranch development due in part to high predation mortality. Embryonic elasmobranchs respond to potential predators by displaying a freezing behaviour, characterized by the cessation of
Temporal and spatial variability of whale shark aggregation in the South Ari Marine Protected Area
Analysis of the temporal and spatial variability of whale shark (Rhincodon typus) aggregation in the South Ari Marine Protected Area, Maldives, Indian Ocean S. Valsecchi, C. Lanfredi, A. Azzellino, A. Savini, V. A. Bracchi, F. Marchese, J. Hancock, R. Rees, C. Cánovas Pérez ABSTRACT: Whale sharks are known to aggregate in coastal areas. In the
Redefining provisioning in marine wildlife tourism
Redefining provisioning in marine wildlife tourism Lauren Meyer, Christine Barry, Gonzalo Araujo, Adam Barnett, Juerg M. Brunnschweiler, Andrew Chin, Austin Gallagher, Teleah Healy, Alison Kock, David Newsome, Alessandro Ponzo, Charlie Huveneers ABSTRACT: Wildlife tourism uses various stimuli to attract species and facilitate close encounters. Such activities are often referred to as provisioning, however the term
Challenges and conservation potential of shark-diving tourism in the Macaronesian archipelagos
Challenges and conservation potential of shark-diving tourism in the Macaronesian archipelagos Pedro G. Gonzáles-Mantilla, Austin J. Gallagher. Carmelo J. León, Gabriel M.S. Vianna ABSTRACT: Macaronesia is formed by some of most isolated oceanic islands of the Atlantic Ocean. This region is typically heavily exploited by fisheries; however, in recent years, marine wildlife tourism has become
Delimiting cryptic species within the brown-banded bamboo shark in the Indo-Australian region
Delimiting cryptic species within the brown-banded bamboo shark, Chiloscyllium punctatum in the Indo-Australian region with mitochondrial DNA and genome-wide SNP approaches Fahmi, Ian R. Tibbetts, Michael B. Bennett, Christine L. Dudgeon ABSTRACT: Background Delimiting cryptic species in elasmobranchs is a major challenge in modern taxonomy due the lack of available phenotypic features. Employing stand-alone genetics
Two new species of freshwater stingrays of the genus Paratrygon from the Orinoco basin
Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba Thiago Silva Loboda, Carlos A. Lasso, Ricardo de Souza Rosa, Marcelo Rodrigues de Carvalho ABSTRACT: The genus Paratrygon, currently recognized as the sole monotypic genus of the family Potamotrygonidae, has a
Taiyo Micronesia Corporation Criminally Charged for Unlawful Removal of Shark Fins
Press Release Government of the Federated States of Micronesia 23 June 2021 — — — — — — PALIKIR, Pohnpei—The Taiyo Micronesia Corporation (“TMC”) is a joint venture company between a Japanese fishing company, Taiyo A & F Corporation, and the National Fisheries Corporation (NFC) of the Federated States of Micronesia (FSM). TMC has a
Results of the 2021 Eldon Poole Shark Tournament
Published on 23 Jun, 2021 at 17:34 in Sport fishing | Viewed times | No Comments
4th Annual Eldon Poole Shark Tournament Location: Cape May Marlin and Tuna Club, Cape May, New Jersey, USADate: 04. – 05. June 2021 Weigh-ins 1st PlaceSpecies: Blue shark (Prionace glauca)Weight: 140 lbsBoat: Y-Not 2nd PlaceSpecies: Blue shark (Prionace glauca)Weight: 132 lbsBoat: Castaway 3rd PlaceSpecies: Blue shark (Prionace glauca)Weight: 115 lbsBoat: Killer Instinct —-
Unified natural mortality estimation for teleosts and elasmobranchs
Unified natural mortality estimation for teleosts and elasmobranchs Dureuil M, Aeberhard WH, Burnett KA, Hueter RE, Tyminski JP, Worm B ABSTRACT: Natural mortality, M, is a key parameter for the assessment and management of living resources but is difficult to observe directly. Therefore, M is often estimated indirectly from life history traits, and it is