The coastal marine environment of Japan is characterized by its high biological productivity, which contributes to generally high fishery yields. However, both the productivity of coastal ecosystems and coastal fisheries are being threatened by substantial changes in the coastal marine environment. This situation is making it increasingly imperative to take an ecosystems approach to management ...

behaviour of the dilution characteristics of the coastal waters off tuticorin is presented in thebackground of setting up of a desalination plant. simulations of dispersion and spreading of the proposeddischarges has been carried out. scenarios of dilutions were assessed based on the results of a 2d model using the advection-dispersion theory. it is observed that under prevailing currents in th...

In a changing ocean, tropical waters can be instructive as to the potential effects of climate induced changes on marine ecosystem structure and function. We describe the relationships between planktonic community respiration (CR), net community production (NCP), gross primary production (GPP), and environmental variables in 14 regions and three ecosystem types (coastal, coral reef, and open se...

There is a clear need to apply better and more effective management schemes to coastal ecosystem restoration projects. It is very common for aquatic ecosystem restoration projects not to meet their goals. Poor performance has led to a high degree of uncertainty about the potential success of any restoration effort. Under adaptive management, the knowledge gained through monitoring of the projec...

In phytoplankton primary production studies, samples for the determination of photosynthesis versus irradiance relationship (P– I) are usually incubated at several irradiance levels during a fixed time period, commonly 2–4 h. However, it is not clear if the use of this fixed incubation time is appropriate to study the P– I relationship in any given ecosystem. The aim of this work was to study t...

Primary production in coastal wetlands is conventionally thought to be limited by nitrogen. Although the plant community in a pristine salt marsh was found to be limited primarily by nitrogen availability, the bacterial community in the soil was limited by phosphorus. Hence, in coastal wetlands, and possibly in many ecosystems, individual trophic groups may respond differently to nitrogen and p...

Mangrove ecosystems are one of the most valuable and productive coastal ecosystems and provide a wide range of ecosystem services. These services are of value to local, national, and international communities and include provisioning (fuel wood, timber, poles, posts, charcoal, and nonwood products—such as food, thatch, fodder, medicine, and fisheries), regulating (carbon sequestration, shorelin...

This paper describes how morphometric classification (based on openness, form, depth and size) and Geographic Information Systems (GIS) can be used for possible identification of coastal areas sensitive to pollution. Generalized maps of key water properties are then created for as large parts of Europe as possible using large amounts of empirical data. These maps give an overview of the general...

[1] A mechanistic explanation for the accumulation of dissolved organic carbon (DOC), observed in coastal seas such as the Northern Adriatic Sea, is proposed here on the basis of numerical simulations of the marine ecosystem dynamics carried out with a coupled biogeochemical-circulation model. The biogeochemical model is based on the European Regional Seas Ecosystem Model (ERSEM) upgraded with ...