Results 61 to 70 of about 23,689 (244)

Time dependent seafloor acoustic backscatter (10-100kHz) [PDF]

, 2003
A time-dependent model of the acoustic intensity backscattered by the seafloor is described and compared with data from a calibrated, vertically oriented, echo-sounder operating at 33 and 93 kHz.
de Moustier, Christian, Sternlicht, Daniel D   +1 more
core   +3 more sources

Predicting potential Arctic kelp distribution and lower‐depth biomass from seafloor irradiance

Limnology and Oceanography: Methods, EarlyView.
Abstract Kelps have an extensive distribution in Arctic coastal waters. However, quantifying their role in the Arctic food web and carbon cycle is challenged by the scarcity of documented geographical distribution, standing stocks and production. Here we present a framework based on an empirical function to predict the potential kelp distribution and ...
Laura Castro de la Guardia, Inka Bartsch, Haakon Hop, Sarina Niedzwiedz, Luisa Düsedau, Nora Diehl, Dorte Krause‐Jensen, Mikael Sejr, Thomas Gjerfluff Ager, Jean‐Pierre Gattuso, Robert W. Schlegel, Cale A. Miller, Karen Filbee‐Dexter, Pedro Duarte   +13 more
wiley   +1 more source

The IceShark, an effective method for sampling plankton under sea ice

Limnology and Oceanography: Methods, EarlyView.
Abstract Seasonal sea ice plays a crucial role in shaping coastal ecosystem dynamics throughout the circumpolar region. Of particular interest to oceanographers is the ice‐ocean interface which functions as a multidimensional habitat, supporting both sympagic algae and pelagic phytoplankton in the under‐ice surface waters.
Eleanor A. Barry, Susan Ziegler, Joey Angnatok, Emma J. Harrison, Uta Passow   +4 more
wiley   +1 more source

The Anthropogenic Footprint of Physical Harm on the Seabed of Augusta Bay (Western Ionian Sea); A Geophysical Investigation

Journal of Marine Science and Engineering, 2022
Augusta Bay is an embayment of the Hyblean sector in south-eastern Sicily (Southern Italy) that faces the Ionian Sea and includes the Rada di Augusta, a wide littoral sector sheltered by breakwaters, which hosts intense harbor activities. Rada di Augusta
Francesca Budillon, Marco Firetto Carlino, Sara Innangi, Salvatore Passaro, Renato Tonielli, Fabio Trincardi, Mario Sprovieri   +6 more
doaj   +1 more source

Spatiotemporal Variation in Marine Mammal Antipredator Behaviors Resulting From a Predation Pinch Point. [PDF]

Ecol Evol
Using 17 years of biologging data from 353 adult female northern elephant seals, we explored how seals modified their use of time and space when moving through nearshore areas where predation risk is high. We found that seals tended to depart at night, arrive during the day, and perform benthic dives along the continental shelf.
Hale CM, Jouma'a J, Brown A, Robinson PW, Holser RR, Costa DP, Beltran RS.   +6 more
europepmc   +2 more sources

Benthic habitat mapping in the Olympic Coast National Marine Sanctuary: Classification of side scan sonar data from survey HMPR-108-2002-01: Version I [PDF]

, 2006
In September 2002, side scan sonar was used to image a portion of the sea floor in the northern OCNMS and was mosaiced at 1-meter pixel resolution using 100 kHz data collected at 300-meter range scale.
Cochrane, G. R., Intelmann, Steven S.
core  

Comparing convolutional neural network and random forest for benthic habitat mapping in Apollo Marine Park

Remote Sensing in Ecology and Conservation, EarlyView.
A comparison of Convolutional Neural Network (CNN) and Random Forest (RF) model predictions of benthic habitats within Apollo Marine Park. The CNN (left) and RF (right) classification maps show the spatial distribution of three habitat types: high energy circalittoral rock with seabed‐covering sponges, low complexity circalittoral rock with non‐crowded
Henry Simmons, Dang Nguyen, Benjamin Misiuk, Daniel Ierodiaconou, Sunil Gupta, Oli Dalby, Mary Young   +6 more
wiley   +1 more source

Linosa island: a unique heritage of Mediterranean biodiversity

Journal of Maps
This publication presents a newly created map of the seafloor of Linosa, a volcanic island located in the Sicily Channel (Mediterranean Sea). The seafloor of Linosa was previously surveyed using geophysical and ground-truth data (in 2016 and 2017 ...
Sara Innangi, Luciana Ferraro, Michele Innangi, Gabriella Di Martino, Laura Giordano, Valentina Alice Bracchi, Renato Tonielli   +6 more
doaj   +1 more source

Seafloor Litter in the Sinop İnceburun Coast in the Southern Black Sea

International Journal of Environment and Geoinformatics, 2017
In this study, abundance, distribution and type of seafloor litter were determined in the Sinop Inceburun coast which is the northeast point of Turkey.
Ayşah Öztekin, Levent Bat
doaj   +1 more source

The late Mesozoic-Cenozoic tectonic evolution of the South China Sea: A petrologic perspective [PDF]

, 2014
This paper presents a review of available petrological, geochonological and geochemical data for late Mesozoic to Recent igneous rocks in the South China Sea (SCS) and adjacent regions and a discussion of their petrogeneses and tectonic implications. The
Castillo, PR, Shi, X, Yan, Q
core   +2 more sources