Results 21 to 30 of about 21,163 (302)

Raptor Predation on Wintering Dunlins in Relation to the Tidal Cycle [PDF]

open access: yesThe Condor, 2004
AbstractAt Boundary Bay, British Columbia, Canada, Peregrine Falcons (Falco peregrinus) captured 94 Dunlins (Calidris alpina) in 652 hunts. The two main hunting methods were open attacks on flying Dunlins (62%) and stealth attacks on roosting or foraging Dunlins (35%). Peregrines hunted throughout the day, yet the kill rate per observation hour dropped
Dekker, D., Ydenberg, R.C.
openaire   +1 more source

Subseasonal Tidal Variability in the Gulf of Tonkin Observed by Multi-Satellite Altimeters and Tide Gauges

open access: yesRemote Sensing, 2023
Exploring multi-timescale tidal variability is fundamental and necessary for numerous practical purposes, such as flood protection, marine cultivation, and ocean transport.
Haidong Pan   +3 more
doaj   +1 more source

Life Cycle Assessment of Electricity Generation from an Array of Subsea Tidal Kite Prototypes [PDF]

open access: yes, 2020
Tidal current technologies have the potential to provide highly predictable energy, since tides are driven by lunar cycles. However, before implementing such technologies on a large scale, their environmental performance should be assessed. In this study,
Kaddoura, Mohamad   +5 more
core   +1 more source

Multiple timescale variations in fronts in the Seto Inland Sea, Japan [PDF]

open access: yesOcean Science
The Seto Inland Sea (SIS) is a critical semi-enclosed coastal sea in Japan, characterized by intricate coastlines and narrow straits that give rise to various fronts.
M. Dong, X. Guo
doaj   +1 more source

Widely rhythmic transcriptome in Calanus finmarchicus during the high Arctic summer solstice period

open access: yesiScience, 2021
Summary: Solar light/dark cycles and seasonal photoperiods underpin daily and annual rhythms of life on Earth. Yet, the Arctic is characterized by several months of permanent illumination (“midnight sun”).
Laura Payton   +8 more
doaj   +1 more source

Tidal effects on periodical variations in the occurrence of singing humpback whales in coastal waters of Chichijima Island, Ogasawara, Japan

open access: yesScientific Reports, 2022
Marine organisms inhabiting coastal waters are known to be driven by periodic cycles such as diel, tidal, and seasonal changes. Humpback whales (Megaptera novaeangliae) breed in shallow and warm coastal waters, with males singing complex songs during the
Koki Tsujii   +4 more
doaj   +1 more source

Sedimentation Cycles in a River-Mouth Tidal Freshwater Marsh [PDF]

open access: yes, 1998
Tidal freshwater marshes are critical buffers that exist at the interface between watersheds and estuaries. Little is known about the physical dynamics of tidal freshwater marsh evolution. Over a 21 month period from July 1995 to March 1997, measurements
Brush, Grace S, Pasternack, Gregory B
core   +1 more source

Fluctuations of Water Quality during a Tidal Cycle in Banzu Tidal Flat.

open access: yesJournal of Japan Society on Water Environment, 2002
Field observations were carried out in Banzu intertidal flat in Tokyo Bay throughout two days in the summer of 2000, in order to clarify the spatiotemporal fluctuatuions of water quality during a tidal cycle. Concentrations of DO, ON (TN-DIN) or OP (TP-PO4-P) at the offshore station were higher than those at the onshore station, whereas DIN and PO4-P ...
NOMURA, Munehiro, NAKAMURA, Yoshiyuki
openaire   +1 more source

Annual Lateral Organic Carbon Exchange Between Salt Marsh and Adjacent Water: A Case Study of East Headland Marshes at the Yangtze Estuary

open access: yesFrontiers in Marine Science, 2022
Blue carbon (C) ecosystems (mangroves, salt marshes, and seagrass beds) sequester high amounts of C, which can be respired back into the atmosphere, buried for long periods, or exported to adjacent ecosystems by tides. The lateral exchange of C between a
Yiquan Yuan   +8 more
doaj   +1 more source

Behavior of Sea Level in the Period of 1980 to 2017 on the Port Area of Gulf of Maranhão, Brazil [PDF]

open access: yesTransNav, 2021
The Gulf of Maranhão, North Coast of Brazil, is one of the regions in the world with largest tidal ranges. The Port Area of Maranhão, in São Marcos Bay, represents the second most important in Brazil.
Paolo Alfredini   +2 more
doaj   +1 more source

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