Results 111 to 120 of about 89,303 (299)

SCoralDet: Efficient real-time underwater soft coral detection with YOLO

Ecological Informatics
In recent years, climate change and marine pollution have significantly degraded coral reefs, highlighting the urgent need for automated coral detection to monitor marine ecosystems.
Zhaoxuan Lu, Lyuchao Liao, Xingang Xie, Hui Yuan   +3 more
doaj  

Quantifying the δ¹⁵N trophic offset in a cold-water scleractinian coral (CWC): implications for the CWC diet and coral δ¹⁵N as a marine N cycle proxy [PDF]

Biogeosciences
The nitrogen (N) isotope composition (δ15N) of cold-water corals is a promising proxy for reconstructing past ocean N cycling, as a strong correlation was found between the δ15N of the organic nitrogen preserved in coral skeletons and the δ15N of ...
J. L. Mottram, A. M. Gothmann, M. G. Prokopenko, A. Cordova, V. Rollinson, K. Dobkowski, J. Granger   +6 more
doaj   +1 more source

Revisiting the silicon isotopic signal of sponge skeletons and its implications

Limnology and Oceanography, EarlyView.
Abstract This study investigates the relationship between the silicon (Si) isotopic composition of sponge skeletal silica (δ30SibSi) and seawater characteristics in sponge habitats, specifically the concentration of dissolved silicic acid and its Si isotopic signature (δ30SidSi).
Manuel Maldonado, Katharine R. Hendry
wiley   +1 more source

Ascidians increase in abundance on tropicalized reefs and may enhance benthic nitrous oxide production

Limnology and Oceanography, EarlyView.
Abstract Nitrous oxide (N2O) is an ozone‐depleting greenhouse gas that has a global warming potential nearly 300 times greater than carbon dioxide. Although the oceans contribute about 21% of atmospheric global N2O emissions, we know relatively little about N2O dynamics in nearshore systems. Here, we document the fourfold increase in the abundance of a
Zuhairah Dindar, Dirk V. Erler, Stephanie G. Gardner, Hamish A. Malcolm, Michael Sutherland, Adriana Vergés   +5 more
wiley   +1 more source

Depth variation in benthic community response to repeated marine heatwaves on remote Central Indian Ocean reefs

Royal Society Open Science
Coral reefs are increasingly impacted by climate-induced warming events. However, there is limited empirical evidence on the variation in the response of shallow coral reef communities to thermal stress across depths.
Sivajyodee Sannassy Pilly, Ronan C. Roche, Laura E. Richardson, John R. Turner   +3 more
doaj   +1 more source

Observations of deep coral and sponge assemblages in Olympic Coast National Marine Sanctuary, Washington. Cruise Report: NOAA Ship McArthur II Cruise AR06-07/07 [PDF]

, 2007
From May 22 to June 4, 2006, NOAA scientists led a research cruise using the ROPOS Remotely Operated Vehicle (ROV) to conduct a series of dives at targeted sites in the Olympic Coast National Marine Sanctuary (OCNMS) with the goal of documenting deep ...
Bowlby, C. E., Brancato, M. S., Brenkman, K., Hyland, J., Intelmann, S. S.   +4 more
core  

Harnessing nature's buffer: Assessing the role of bivalve shells in coastal alkalinity regeneration

Limnology and Oceanography Letters, EarlyView.
Abstract Bivalve shells, a natural alkaline material, play a crucial role in coastal carbon cycles by influencing total alkalinity (TA) and dissolved inorganic carbon (DIC). This study investigated oyster shell dissolution in Narragansett Bay, Rhode Island, under varying pCO2 conditions, revealing TA regeneration rates of 4–56 μmol L−1 d−1, which could
Hongjie Wang, Fiona Teevan‐Kamhawi, Olivia Rebernik   +2 more
wiley   +1 more source

RRS Discovery Cruise 248, 07 Jul-10 Aug 2000. A multidisciplinary study of the environment and ecology of deep-water coral ecosystems and associated seabed facies and features (The Darwin Mounds, Porcupine Bank and Porcupine Seabight) [PDF]

, 2001
RRS Discovery Cruise 248 aimed to carry out a multidisciplinary study of the environment and ecology of deep-water coral ecosystems and associated seabed features in the northeast Atlantic.
Bett, B.J., Billett, D.S.M., Masson, D.G., Tyler, P.A.   +3 more
core  

Culturing the solitary ascidian Phallusia nigra in closed and open water systems for tropical environmental research

Limnology and Oceanography: Methods, EarlyView.
Abstract Marine and coastal ecosystems have been undergoing dramatic shifts due to global environmental changes. The rise in seawater temperature, ocean acidification, hypoxia, eutrophication, and anthropogenic pollution severely affects marine organisms.
Serina Siew Chen Lee, Amit Unger, Serena Lay Ming Teo, Noa Shenkar   +3 more
wiley   +1 more source

Automated, objective texture segmentation of multibeam echosounder data - Seafloor survey and substrate maps from James Island to Ozette Lake, Washington Outer Coast [PDF]

, 2007
Without knowledge of basic seafloor characteristics, the ability to address any number of critical marine and/or coastal management issues is diminished. For example, management and conservation of essential fish habitat (EFH), a requirement mandated by
Beaudoin, Jonathan D., Cutter, George R., Intelmann, Steven S.   +2 more
core