Results 1 to 10 of about 68,803 (248)

Changes in phytoplankton and biomineral content of particles during episodic fluxes to abyssal depth

Limnology and Oceanography Letters, 2022
Large episodic pulses of particulate organic carbon (POC) at the deep‐sea (~ 4000 m) time‐series Sta. M in the Northeast Pacific Ocean have increased in frequency and magnitude over the past 32 years. We inferred the ecological drivers of these events by
Cynthia A. Michaud, Christine L. Huffard, Kenneth L. Smith Jr, Colleen A. Durkin   +3 more
doaj   +1 more source

Atolla reynoldsi sp. nov. (Cnidaria, Scyphozoa, Coronatae, Atollidae): A New Species of Coronate Scyphozoan Found in the Eastern North Pacific Ocean

Animals, 2022
We have observed and collected unusual specimens of what we recognize as undescribed types of the genus Atolla over the past 15 years. Of these, there appear to be three potentially different types.
George I. Matsumoto, Lynne M. Christianson, Bruce H. Robison, Steven H. D. Haddock, Shannon B. Johnson   +4 more
doaj   +1 more source

Physiological effects of environmental acidification in the deep-sea urchin Strongylocentrotus fragilis [PDF]

Biogeosciences, 2014
Anthropogenic CO2 is now reaching depths over 1000 m in the Eastern Pacific, overlapping the Oxygen Minimum Zone (OMZ). Deep-sea animals are suspected to be especially sensitive to environmental acidification associated with global climate change.
J. R. Taylor, C. Lovera, P. J. Whaling, K. R. Buck, E. F. Pane, J. P. Barry   +5 more
doaj   +1 more source

Ecological divergence of a mesocosm in an eastern boundary upwelling system assessed with multi-marker environmental DNA metabarcoding [PDF]

Biogeosciences, 2023
Eastern boundary upwelling systems (EBUS) contribute a disproportionate fraction of the global fish catch relative to their size and are especially susceptible to global environmental change.
M. A. Min, M. A. Min, D. M. Needham, D. M. Needham, S. Sudek, N. K. Truelove, K. J. Pitz, G. M. Chavez, G. M. Chavez, C. Poirier, C. Poirier, B. Gardeler, B. Gardeler, E. von der Esch, A. Ludwig, U. Riebesell, A. Z. Worden, A. Z. Worden, F. P. Chavez   +18 more
doaj   +1 more source

Head-mounted accelerometry accurately detects prey capture in California sea lions

Animal Biotelemetry, 2021
Detecting when and where animals feed is key to understanding their ecophysiology, but our ability to collect these data in marine mammals remains limited.
Mason R. Cole, Jenifer A. Zeligs, Stefani Skrovan, Birgitte I. McDonald   +3 more
doaj   +1 more source

Multi-agent reinforcement learning for autonomous vehicles: a survey

Autonomous Intelligent Systems, 2022
In the near future, autonomous vehicles (AVs) may cohabit with human drivers in mixed traffic. This cohabitation raises serious challenges, both in terms of traffic flow and individual mobility, as well as from the road safety point of view.
Joris Dinneweth, Abderrahmane Boubezoul, René Mandiau, Stéphane Espié   +3 more
doaj   +1 more source

Post-stroke deficits in the anticipatory control and bimanual coordination during naturalistic cooperative bimanual action

Journal of NeuroEngineering and Rehabilitation, 2023
Background Unilateral stroke leads to asymmetric deficits in movement performance; yet its effects on naturalistic bimanual actions, a key aspect of everyday functions, are understudied.
Cory A. Potts, Shailesh S. Kantak
doaj   +1 more source

Diversity and natural history of a Lithothamnion muelleri-Sargassum horridum community in the Gulf of California

Ciencias Marinas, 2007
We quantitatively assessed the relative contribution of the rhodolith form of Lithothamnion muelleri, a likely foundation species, to macroorganism diversity in a community also inhabited by the large fucalean Sargassum horridum at a site near Cabo Los ...
MS Foster, LC McConnico, L Lundsten, T Wadsworth, T Kimball, LB Brooks, M Medina-López, R Riosmena-Rodríguez, G Hernández-Carmona, RM Vásquez-Elizondo, S Johnson, DL Steller   +11 more
doaj   +1 more source

Faulting and Magmatic Accretion Across the Overlapping Spreading Center Between Vance Segment and Axial South Rift, Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems, 2022
Plate divergence along mid‐ocean ridges is accommodated through faulting and magmatic accretion, and, at overlapping spreading centers (OSC), is distributed across two curvilinear overlapping ridge axes.
M. Le Saout, D. A. Clague, J. B. Paduan
doaj   +1 more source

Expanding the temporal and spatial scales of environmental DNA research with autonomous sampling

Environmental DNA, 2022
Environmental DNA (eDNA) is an emerging and powerful method for use in marine research, conservation, and management, yet time‐ and resource‐intensive protocols limit the scale of implementation.
Nathan K. Truelove, Nastassia V. Patin, Markus Min, Kathleen J. Pitz, Chris M. Preston, Kevan M. Yamahara, Yanwu Zhang, Ben Y. Raanan, Brian Kieft, Brett Hobson, Luke R. Thompson, Kelly D. Goodwin, Francisco P. Chavez   +12 more
doaj   +1 more source