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Impacts of trophy collection and commercial fisheries on sawfishes in Queensland, Australia
Globally, populations of sawfishes (Batoidea: Pristidae) have declined due to directed fishing and bycatch. Before international trade protection, sawfish rostra were often collected as trophies, and sawfish fins could fetch some of the highest prices in
BE Wueringer, VN Biskis, GA Pinkus
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The Effect of Cobalt Oxide Nanoparticles on Improving the Quality of Computerized Tomography (CT) Scan Medical Imaging [PDF]
Introduction: Sometimes, a patient receives a poor quality medical image from a medical imaging center. Which the doctor orders to re-image with a drug contrast media agent. At this time, practical action is challenging to provide a proper image.
Mohamdreza Armanmehr +3 more
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Updated checklist of Azores Chondrichthyes (Vertebrata: Gnathostomata) [PDF]
Several lists of marine fish from the Azores were published in the past. Most of those publications are difficult to access on line and several were not published in peer reviewed journals.This checklist updates all the chondrichthyan records for the ...
Luís Barcelos +2 more
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Portuguese Artisanal Fishers’ Knowledge About Elasmobranchs—A Case Study
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 on this group because of
Priscila M. Silva +6 more
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More than half of the Mediterranean sharks and rays are threatened by fishing exploitation. However, population assessments are limited by the scarcity of specific data on fishing catches.
Alba Serrat +6 more
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Introduction: Elasmobranchs currently constitute an important part of the animal collection of many aquariums worldwide. Their maintenance under human care has allowed us to describe and identify new pathogens and diseases affecting them, as well as to ...
Daniela Cañizares-Cooz +5 more
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Chondrichthyes, an ancient and diverse class of vertebrates, are crucial to the health of marine ecosystems. Excessive demand for chondrichthyan products has increased fishing pressure, threatening ∼30% of species with extinction in recent decades. India
Shaili Johri +10 more
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Mitigation of Elasmobranch Bycatch in Trawlers: A Case Study in Indian Fisheries
Bycatch poses a significant threat to marine megafauna, such as elasmobranchs. India has one of the highest elasmobranch landings globally, through both targeted catch and bycatch.
Trisha Gupta +8 more
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Cosmic Rays, Gamma rays, Neutrinos and Gravitational Waves [PDF]
This paper discusses the relation between the study of the fluxes of cosmic rays, gamma rays and neutrinos, and the connection of these observations with the newly born field of gravitational wave astronomy.Comment: 6 pages, 2 figures.
Lipari, Paolo
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Se estudia el comportamiento del espectro de potencia de las fluctuaciones en la intensidad de los rayos cósmicos para frecuencias menores de 10-4Hz, determinado a partir de las observaciones en superficie de las componentes nucleónica y de ionización ...
O. V. Gulinsky +12 more
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