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Catch composition and life history characteristics of sharks and rays landed in the Andaman and Nicobar Islands, India
Catch composition and life history characteristics of sharks and rays (Elasmobranchii) landed in the Andaman and Nicobar Islands, India Zoya Tyabji, Tanmay Wagh, Vardhan Patankar, Rima W. Jabado, Dipani Sutaria ABSTRACT: The scientific literature on the diversity and biological characteristics of sharks and rays from the Andaman and Nicobar Archipelago fishing grounds is scarce and
Effects of exposure to large sharks on the abundance and behavior of mobile prey fishes
Effects of exposure to large sharks on the abundance and behavior of mobile prey fishes along a temperate coastal gradient Brendan D. Shea, Connor W. Benson, Christine de Silva, Don Donovan, Joe Romeiro, Mark E. Bond, Scott Creel, Austin J. Gallagher ABSTRACT: Top predators can exert strong influences on community structure and function, both via
Male-biased sexual size dimorphism in sharks
Male-biased sexual size dimorphism in sharks: the narrowmouth catshark Schroederichthys bivius as case study Colonello, J.H., Cortés, F. & Belleggia, M. ABSTRACT: In shark populations, variation in sexual size dimorphism (SSD) appears to be related with the reproductive mode. Here, we aimed to investigate the reproductive biology of the narrowmouth catshark Schroederichthys bivius, an oviparous
Genetic connectivity and diversity of endangered species the scalloped hammerhead shark population in Indonesia and Western Indian Ocean
Genetic connectivity and diversity of endangered species the scalloped hammerhead shark Sphyrna lewini (Griffith & Smith 1834) population in Indonesia and Western Indian Ocean Sutanto Hadi, Noviar Andayani, Effin Muttaqin, Benaya M Simeon, Muhammad Ichsan, Beginer Subhan, Hawis Madduppa ABSTRACT: The scalloped hammerhead shark Sphyrna lewini is an endangered species which expected to population declined
Coastal breeding aggregations of threatened stingrays and guitarfish in the Levant
Coastal breeding aggregations of threatened stingrays and guitarfish in the Levant Shahar Chaikin, Jonathan Belmaker, Adi Barash ABSTRACT: 1. Stingrays and guitarfish are globally threatened by overexploitation, particularly so in the Mediterranean Sea. Nevertheless, very little information is known about their ecology, behaviour, and taxonomy in the Mediterranean, and especially in the Levant, where water
Human Interactions with Sharks, Rays & Skates
Human Interactions with Sharks, Rays & Skates-An Annotated Bibliography– Chantal D. Pagel & Michael Lück 1st edition: March 2020Dotterel Publishing PDF-DOWNLOAD
Chief Scientist to review data retrieved from SMART drumline trial
Published on 16 Mar, 2020 at 11:28 in Attacks & Incidents | Viewed times | No Comments
Media Release Department of Fisheries, Western Australia 09. March 2020 — — — — — — — — — State Government’s non-lethal SMART drumline trial reaches 12-month milestone The trial will continue to collect new scientific data over next three months Data from the State Government’s non-lethal SMART drumline trial off Gracetown is being collected
Non‐lethal assessment of reproductive stage for female blue sharks
Non‐lethal assessment of reproductive stage for female blue sharks Prionace glauca using sex steroid hormones Y. Fujinami, Y. Semba ABSTRACT: We analysed plasma concentrations of progesterone (P4) and 17β‐oestradiol (E2) in juvenile, pre‐ovulatory, early, mid‐, or late‐pregnancy stages of female blue sharks Prionace glauca. Concentrations of P4 were significantly higher in pregnant than in non‐pregnant
Trends in Chondrichthyan Research
Trends in Chondrichthyan Research: An Analysis of Three Decades of Conference Abstracts D. S. Shiffman, M. J. Ajemian, J. C. Carrier, T. S. Daly-Engel, M. M. Davis, N. K. Dulvy, R. D. Grubbs, N. A. Hinojosa, J. Imhoff, M. A. Kolmann, C. S. Nash, E. W. M. Paig-Tran, E. E. Peele, R. A. Skubel, B.
Mercury (Hg) and selenium (Se) content in the shark Mustelus henlei
Mercury (Hg) and selenium (Se) content in the shark Mustelus henlei (Triakidae) in the northern Mexican Pacific Sergio Alonzo Medina-Morales, David Corro-Espinosa, Ofelia Escobar-Sánchez, Carolina Guadalupe Delgado-Alvarez, Jorge Ruelas-Inzunza, Martin Gabriel Frías-Espericueta, Martin Enrique Jara-Marini, Federico Páez-Osuna ABSTRACT: Mercury and selenium were assessed in Mustelus henlei, which is a carnivorous predatory shark that is important
A New Onchoproteocephalidean Cestode Species from the Spot-Tail Shark
A New Onchoproteocephalidean Cestode Species from the Spot-Tail Shark, Carcharhinus sorrah (Müller et Henle), in the Persian Gulf Masoumi Ganjgah, N., Haseli, M. ABSTRACT: Introduction Members of the onchoproteocephalidean genus Phoreiobothrium Linton, 1889 infect carcharhinid and sphyrnid sharks. Although the Persian Gulf harbors a rich fauna of sharks, the taxonomic diversity of Phoreiobothrium in this
Distribution and abundance of elasmobranchs and large teleost fishes in a subtropical seagrass ecosystem
Distribution and abundance of elasmobranchs and large teleost fishes in a subtropical seagrass ecosystem: community structure along environmental and spatial gradients Peterson, C.T., Grubbs, R.D. ABSTRACT: We used fishery-independent gillnet and longline surveys to document the elasmobranch and large teleost assemblages in the Florida Big Bend seagrass system and examine how ichthyofaunal assemblages were related
Shark movements in the Revillagigedo Archipelago
Shark movements in the Revillagigedo Archipelago and connectivity with the Eastern Tropical Pacific Frida Lara-Lizardi, Mauricio Hoyos-Padilla, Alex Hearn, A. Peter Klimley, Felipe Galván-Magaña, Randall Arauz, Sandra Bessudo, Eleazar Castro, Eric Clua, Eduardo Espinoza, Chris Fischer, César Peñaherrera-Palma,Todd Steiner, James T. Ketchum ABSTRACT: Long-distance movements of sharks within and between islands pose substantial challenges for