Results 81 to 90 of about 4,199 (299)

Feeding ecology of 0-group sea bass Dicentrarchus labrax in salt marshes of Mont Saint-Michel bay (France) [PDF]

open access: yes, 2001
0-group sea bass, Dicentrarchus labrax, colonize intertidal marsh creeks of Mont Saint Michel Bay, France, on spring tides (e.g., 43% of the tides) during flood and return to coastal waters during ebb.
Lefeuvre, Jean-Claude   +4 more
core   +1 more source

Quantifying temporal dynamics of greenhouse gas emissions in lake mesocosms: Deployment of a low‐cost measurement system

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Greenhouse gas (GHG) emissions from freshwater ecosystems contribute significantly to global carbon budgets, yet they remain poorly constrained due to limited high‐frequency measurements. We tested a low‐cost, high‐frequency GHG measurement system in a long‐term mesocosm experiment in Lemming, Denmark, over a 7‐month period, focusing on CO2 ...
Tuba Bucak   +6 more
wiley   +1 more source

Variational Data Assimilation of Tides

open access: yesJournal of Marine Science and Engineering, 2020
This paper presents an incremental variational method to assimilate the observed tidal harmonic constants using a frequency domain linearized shallow water equation.
Lei Shi, Liujuan Tang, Edward Myers
doaj   +1 more source

The Sediment Dynamics of Ahuriri Estuary, Napier, New Zealand

open access: yes, 2009
Ahuriri Estuary is a shallow, microtidal estuary located in Hawke's Bay, New Zealand. Sediment transport pathways and areas of potential erosion and accretion of Ahuriri Estuary are identified to enhance the understanding of the fate of contaminants ...
Eyre, Tracey Michelle
core  

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix   +10 more
wiley   +1 more source

Dynamics of a macrotidal estuary along 400 years based on historical maps and remote sensing: Araguari river, Amazon coast, Brazil

open access: yesRevista Brasileira de Geomorfologia
Estuaries are environments subject to rapid morphological changes driven by variations in hydromorphological and climatic patterns. On the Amazon coast, these transformations have also been intensified by anthropogenic processes.
Valdenira Ferreira Santos   +3 more
doaj   +1 more source

Development and application of a three-dimensional water quality model in a partially-mixed estuary, Southampton Water, UK

open access: yes, 2000
The aim of this research was to develop a 'transportable' water quality model for the Solent and Southampton Water estuarine system, as a part of an effort to examine the effects of human activity and natural processes on estuarine water quality ...
Shi, L.
core  

Shear Instabilities & Spatial Variability of Tidal Currents in Estuarine Channels

open access: yes, 2021
Tidal currents flowing through narrow estuarine channels can have horizontal velocity gradients that produce instabilities in the flow. The instabilities manifest into alongshore progressive shear waves growing exponentially in time causing a meandering ...
Kirk, Katie
core  

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias   +6 more
wiley   +1 more source

Observations and modelling of the variability of the Solent-Southampton Water estuarine system

open access: yes, 2008
Understanding the effect of physical forcing on estuarine functioning is of major importance to determine the rate of exchange of water, sediments, pollutants and nutrients between the continent and the ocean.
Levasseur, Anne
core  

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