Water residence time: A regulatory factor of the DOM to POM transfer efficiency

  title={Water residence time: A regulatory factor of the DOM to POM transfer efficiency},
  author={Xavier Mari and Emma J. Rochelle-Newall and Jean-Pascal Torréton and Olivier Pringault and Aymeric Jouon and Christophe Migon},
  journal={Limnology and Oceanography},
The pools of dissolved (DOM) and particulate organic matter (POM) and of transparent exopolymeric particles (TEP) were studied along two sampling gradients in the lagoon of New Caledonia in relation to the residence time of the water masses. The efficiency of the transfer of material from the dissolved to the particulate phase via TEP formation, indicating the physicochemical reactivity of organic matter, was investigated. DOM, POM, and TEP concentration increased along the sampling gradients… 

Effects of macrophytes and terrestrial inputs on fluorescent dissolved organic matter in a large river system

Abstract.We studied the contribution of aquatic macrophytes and allochthonous sources to the pool of fluorescent dissolved organic matter (FDOM) in a large river system composed of several distinct

Abundance and patterns of transparent exopolymer particles (TEP) in Arctic floodplain lakes of the Mackenzie River Delta

[1] The Mackenzie River Delta is a lake-rich arctic floodplain that receives high inputs of dissolved organic matter (DOM) and suspended particulates from allochthonous and autochthonous sources, and

Does ocean acidification induce an upward flux of marine aggregates

Abstract. The absorption of anthropogenic atmospheric carbon dioxide (CO2) by the ocean provokes its acidification. This acidification may alter several oceanic processes, including the export of

Transparent Exopolymer Particles (TEP) in a River-Dominated Estuary: Spatial–Temporal Distributions and an Assessment of Controls upon TEP Formation

Transparent exopolymer particle (TEP) distributions were examined in North Carolina’s Neuse River Estuary (NRE) over a 1-year period, and experiments were conducted to examine controls upon TEP



Rapid cycling of high-molecular-weight dissolved organic matter in the ocean

DISSOLVED organic matter (DOM) in the ocean is one of the largest active reservoirs of organic carbon on Earth. It is important to understand the processes by which DOM is recycled, particularly as

Bulk Chemical Characteristics of Dissolved Organic Matter in the Ocean

Tangential-flow ultrafiltration was shown to recover milligram amounts of >1000 daltons of DOM from seawater collected at three depths in the North Pacific Ocean, and polysaccharides appear to be more abundant and reactive components of seawater DOM than has been recognized.

Non‐Redfield C:N ratio of transparent exopolymeric particles in the northwestern Mediterranean Sea

The stoichiometric model of Redfield, which describes the elemental composition of marine organic matter, is generally used to link the production of new organic matter to the uptake of nitrate. The

Linkages among the bioreactivity, chemical composition, and diagenetic state of marine dissolved organic matter

Bacterial growth and the chemical composition of dissolved organic matter (DOM) were followed during a 10ߚd decomposition experiment with fresh, algalߚ;derived DOM from an Arctic ice floe. During the

Seasonal size spectra of transparent exopolymeric particles (TEP) in a coastal sea and comparison with those predicted using coagulation theory

: The abundance and size distribution of transparent exopolymeric particles (TEP) were monitored in the Kattegat (Denmark) during 1 yr. TEP number concentration ranged from 0.5 X 105 to 3.8 X 105

Chromophoric dissolved organic matter in experimental mesocosms maintained under different pCO2 levels

Chromophoric dissolved organic matter (CDOM) represents the optically active fraction of the bulk dissolved organic matter (DOM) pool. Recent evidence pointed towards a microbial source of CDOM in

The production of dissolved organic matter by phytoplankton and its importance to bacteria : patterns across marine and freshwater systems

It is estimated that ER amounts to less than half the C required for bacterial growth in most pelagic systems, which appears to be constrained by the total availability of photosynthates.

Accumulation of degradable DOC in surface waters: Is it caused by a malfunctioning microbialloop?

A model describing the interactions between heterotrophic bacteria, phytoplankton, and bacterivorous protozoa is used to explore how the balance between DOC production and consumption shifts along a gradient from oligotrophy to eutrophy.

Ascending marine particles: Significance of transparent exopolymer particles (TEP) in the upper ocean

The high abundance of transparent exopolymer particles (TEP) in marine and freshwater greatly affects particle dynamics. TEP act as glue for colliding particles and form the matrix in aggregates,