Johnston Atoll: reef fish hybrid zone between Hawaii and the equatorial Pacific [PDF]
, 2020 Johnston Atoll is isolated in the Central Pacific Ocean (16°45′ N 169°31′ W) about 1287 km (800 miles) southwest of Honolulu, Hawaii and 1440 km (900 miles) north of the equatorial Line Islands, Kiribati.
Lobel, Lisa +2 more
core +1 more source
Underwater observations of dolphin reactions to a distressed conspecific [PDF]
Learning & Behavior, 2015 This report describes the epimeletic (or "caregiving") behavior produced by members of a group of Atlantic bottlenose dolphins (Tursiops truncatus) and the possible role of the ailing animal's distress call in eliciting such behavior. Epimeletic behavior in cetaceans most typically involves forms of support provided to a distressed, injured, or dying ...
Kuczaj, Stan A. +5 more
openaire +2 more sources
ASSESSMENT OF CHROMATIC ABERRATIONS FOR GOPRO 3 CAMERAS IN UNDERWATER ENVIRONMENTS [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 With underwater photogrammetric mapping becoming more prominent due to the lower costs for waterproof cameras as well as lower costs for underwater platforms, the aim of this research is to investigate chromatic aberration in underwater environments ...
P. Helmholz, D. D. Lichti
doaj +1 more source
Remote Sensing, 2021 Marine ecosystem monitoring requires observations of its attributes at different spatial and temporal scales that traditional sampling methods (e.g., RGB imaging, sediment cores) struggle to efficiently provide.
Juan C. Montes-Herrera +5 more
doaj +1 more source
Investigating submerged morphologies by means of the low-budget “GeoDive” method (high resolution for detailed 3D reconstruction and related measurements) [PDF]
, 2018 Geophysical methods allow to collect geological data on lake and sea bottoms and characterize large areas, even at high depths, but with high costs.
Crognale, Jacopo +2 more
core +1 more source
We All Live in a Virtual Submarine [PDF]
, 2010 Our seas and oceans hide a plethora of archaeological sites such as ancient shipwrecks that, over time, are being destroyed through activities such as deepwater trawling and treasure hunting.
Bale, Kim, Chapman, Paul, Drap, Pierre
core +1 more source
Energy Harvesting Hybrid Acoustic-Optical Underwater Wireless Sensor Networks Localization
Sensors, 2017 Underwater wireless technologies demand to transmit at higher data rate for ocean exploration. Currently, large coverage is achieved by acoustic sensor networks with low data rate, high cost, high latency, high power consumption, and negative impact on ...
Nasir Saeed +3 more
doaj +1 more source
A method of studying trawl models in the experimental station of the faculty of sea fisheries and food technology [PDF]
Acta Ichthyologica et Piscatoria, 1986 Techniques of measurements and underwater observations of models of trawls and other fishing gear in a lake, with the use of a motor catamaran, are presented.
Z. Kwidziński
doaj +3 more sources
Underwater mobile target tracking with particle filter using an autonomous vehicle [PDF]
, 2017 This paper describes an underwater mobile target localization and tracking by using an autonomous surface vehicle for which the successive ranges between the target and the reference are the only information.
Aguzzi, Jacopo +4 more
core +1 more source
Underwater Communication Using UAVs to Realize High-Speed AUV Deployment
Remote Sensing, 2021 To monitor ocean and seafloor properties in detail, sensors are generally installed on autonomous underwater vehicles (AUVs). An AUV cannot accurately determine its absolute position and needs to communicate with a sea-surface vehicle.
Yusuke Yokota, Takumi Matsuda
doaj +1 more source