Results 51 to 60 of about 28,986 (305)

3D‐Printed Shark‐Inspired Soft–Hard Hybrid Underwater Robot With Buoyancy Control and Onboard Vision

Advanced Intelligent Systems, EarlyView.
A fully self‐contained shark‐inspired underwater robot is developed using 3D‐printed soft–hard hybrid structures, servo‐driven propulsion, and pump‐based buoyancy control. The platform achieves three‐dimensional locomotion and onboard vision‐based target tracking, offering a reproducible and accessible framework for biomimetic underwater robot research.
Shotaro Saito, Byeongwook Jo, Minghao Nie, Shoji Takeuchi   +3 more
wiley   +1 more source

Observations on the Frequency of Sightings of White Sharks in the Population of Gansbaai, South Africa, in the Presence of Cage Diving

Biology
Shark ecotourism is an ever-expanding reality, with hundreds of thousands of tourists involved annually. Although it represents a fundamental tool for sharing the urgent need to safeguard sharks with the public, the implications for the health and well ...
Primo Micarelli, Francesca Romana Reinero, Antonio Pacifico, Gianni Giglio, Makenna Mahrer, Emilio Sperone   +5 more
doaj   +1 more source

The Drone Revolution of Shark Science: A Review

Drones, 2021
Over the past decade, drones have become a popular tool for wildlife management and research. Drones have shown significant value for animals that were often difficult or dangerous to study using traditional survey methods.
Paul A. Butcher, Andrew P. Colefax, Robert A. Gorkin, Stephen M. Kajiura, Naima A. López, Johann Mourier, Cormac R. Purcell, Gregory B. Skomal, James P. Tucker, Andrew J. Walsh, Jane E. Williamson, Vincent Raoult   +11 more
doaj   +1 more source

Observations on an Aggregation of Grey Reef Sharks (Carcharhinus amblyrhynchos) in the Mozambique Channel Off the Coast of Nosy Be (Madagascar) and Tools for Photo-Identification—A New Aggregation Nursery Site?

Biology
Following preliminary underwater observations of about 1000 h carried out monthly between 2012 and 2023 (except the years 2021 and 2022), 23 specimens of grey reef sharks were spotted and photo-identified off the coast of Nosy Be in Madagascar, on an ...
Primo Micarelli, Marco Pireddu, Damiano Persia, Marco Sanna, Consuelo Vicariotto, Antonio Pacifico, Pietro Storelli, Makenna Mahrer, Emanuele Venanzi, Francesca Romana Reinero   +9 more
doaj   +1 more source

Drivers of daily routines in an ectothermic marine predator : hunt warm, rest warmer?

, 2015
This work received funding from the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland). MASTS is funded by the Scottish Funding Council (grant reference HR09011) and contributing institutions. Funding was also provided
Laura E Dee, Jennifer E. Caselle (206726), Bradley, Darcy, Christopher G. Lowe (408500), Darcy Bradley (3286023), Lowe, Christopher, Dee, Laura E., Papastamatiou, Yannis P., Jennifer E Caselle, Yannis P. Papastamatiou (507203), Yuuki Y. Watanabe (752504), Caselle, Jennifer E., Lowe, Christopher G., Kevin Weng (752506), Laura E. Dee (752505), Weng, Kevin, Kevin Weng, Christopher G Lowe, Yuuki Y Watanabe, Watanabe, Yuuki Y., Darcy Bradley, Yannis P Papastamatiou, Weng, Kevin C.   +22 more
core   +1 more source

The shark assemblage at French Frigate Shoals atoll, Hawai'i: species composition, abundance and habitat use. [PDF]

PLoS ONE, 2011
Empirical data on the abundance and habitat preferences of coral reef top predators are needed to evaluate their ecological impacts and guide management decisions.
Jonathan J Dale, Austin M Stankus, Michael S Burns, Carl G Meyer   +3 more
doaj   +1 more source

A Global Overview of Commercial Fisheries for Open Ocean Sharks

, 2008
This chapter contains sections titled: Introduction Data limitations and collection efforts Global elasmobranch catches Pelagic sharks in Atlantic Ocean fisheries Pelagic sharks in Pacific Ocean fisheries Pelagic sharks in Indian Ocean fisheries A ...
Camhi, Merry D, Lauck, Elizabeth, Pikitch, Ellen K, Babcock, Elizabeth A   +3 more
core   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

First use of the I3S Pattern photoidentification application as a preliminary and complementary tool for tiger shark Galeocerdo cuvier idenfication

, 2022
Tiger shark Galeocerdo cuvier (Peròn & Lesueur, 1822) is an apex predator in many tropical and warm-temperate ecosystems around the world (Heithaus, 2001).
Sgambaro, Nadia, Micarelli, Primo, Magnani, Benedetta, Bekaert, Matthieu, Reinero, Francesca Romana   +4 more
core  

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source