Sediment-Water Exchange of Dissolved Nutrients at an Intertidal Site in the Upper Reaches of the Bay of Fundy

Estuaries ◽  
1989 ◽  
Vol 12 (1) ◽  
pp. 1 ◽  
Author(s):  
P. D. Keizer ◽  
B. T. Hargrave ◽  
D. C. Gordon
Keyword(s):  
Water Exchange ◽  
Bay Of Fundy ◽  
Dissolved Nutrients ◽  
Intertidal Site

Possible Effects of Passamaquoddy Power Project on Clams, Scallops and Shipworms in Canadian Waters

1962 ◽  
Vol 19 (5) ◽  
pp. 877-889
Author(s):  
J. C. Medcof
Keyword(s):  
Water Exchange ◽  
Mya Arenaria ◽  
Bay Of Fundy ◽  
Placopecten Magellanicus ◽  
Soft Shell Clam ◽  
Economic Significance ◽  
Breeding Populations ◽  
Soft Shell ◽  
Power Project ◽  
Reduced Water

Only three molluscs in the Passamaquoddy region of the Bay of Fundy have economic significance. The annual soft-shell clam (Mya arenaria) production now at 4 million lb will drop 2 million and fishermen's earnings will drop to $100,000 because the area of clam flats in the High Pool will decrease 95%. Annual scallop (Placopecten magellanicus) production, now at 60,000 lb, will increase to about 90,000 lb and fishermen's earnings will increase to about $36,000 because reduced water exchange in the High Pool will favour survival of larvae and recruitment of scallop stocks. The shipworm (Teredo navalis), no problem now, will become an expensive pest in the Low and High Pools because higher water temperatures will encourage the build-up of heavy breeding populations.

The main principles and results of pollution monitoring of sediments in the river basin

2020 ◽  
pp. 14-20
Author(s):  
B. Korzhenevsky ◽  
Gleb Tolkachev ◽  
Nikolay Kolomiycev
Keyword(s):  
Heavy Metals ◽  
River Basin ◽  
Water Exchange ◽  
Pollution Monitoring ◽  
Small Rivers ◽  
Volga River ◽  
Natural Landscape ◽  
Volga River Basin ◽  
Ivankovo Reservoir ◽  
Selection Of

The problems of modern geological ecology associated with the study of pollution of sediments of water bodies by heavy metals are considered. The Volga River basin is quite heterogeneous, both in geomorphological and hydrological terms, and in thechnogenical development and usage. A fourrank taxonomy is presented for the selection of sites for monitoring, based on a combination of natural, landscape, climatic and thechnogenical factors. To the largest – the highest taxon – sites of the Ist category – bowls of reservoirs with the slopes and the urban zones, industrial and agricultural structures located within them are carried. Within these areas are allocated to smaller taxa, areas category IInd are the industrial and urban zones, areas category IIIrd are the small rivers without significant contamination and areas category IVth to conduct special observations. The examples of special observations in the study of the annual migration of heavy metals in the system «bottom sediments – water column» on the Ivankovo reservoir are highlighted. The investigations were carried out under the conditions of the standard flow rate for this reservoir and in the conditions of slow water exchange.

Density-driven water exchange controls seasonal declines in jellyfish (Aurelia aurita) abundance in a shallow fjord system

2018 ◽  
Vol 597 ◽  
pp. 137-145 ◽  
Author(s):  
J Goldstein ◽  
C Jürgensen ◽  
UK Steiner ◽  
HU Riisgård
Keyword(s):  
Water Exchange ◽  
Aurelia Aurita ◽  
Fjord System

SELF-PURIFICATION OF SEA COASTAL WATER AREAS UNDER CLIMATIC AND ANTHROPOGENIC CHANGE

2017 ◽  
Author(s):  
Irina Mesenzeva ◽  
Irina Mesenzeva ◽  
Elena Sovga ◽  
Elena Sovga ◽  
Tatyana Khmara ◽  
...  
Keyword(s):  
Anthropogenic Impact ◽  
Water Exchange ◽  
Water Area ◽  
Clean Water ◽  
Ecological State ◽  
Anthropogenic Change ◽  
Run Off ◽  
Open Sea ◽  
Sevastopol Bay ◽  
Assimilation Capacity

The ability of a bay and gulf ecosystems to self-purification was estimated and the current ecological state of the Sevastopol Bay in whole and the separated parts of the bay was given as an example. A zoning by type of anthropogenic impact subject to the water exchange with the open sea and an influence of the Chernaya River run-off were taken into account. A comparative analysis of assimilation capacity of the most environmentally disadvantaged part of the Sevastopol Bay (the Southern Bay) and the clean water area, bordering on the open sea, was carried out. The hydrodynamic regime of the Sevastopol Bay was described using numerical modelling. The prospect, opportunity and examples of the methodology for assessing the assimilation capacity of marine ecosystems are demonstrated.

Flow visualization and PIV measurement of a water exchange process in a biosensor container

2004 ◽  
Vol 24 (Supplement1) ◽  
pp. 331-332
Author(s):  
Takashi MIKAMI ◽  
Masaru ISHIZUKA ◽  
Shinji NAKAGAWA ◽  
Koichiro KAWANO ◽  
Yoshio ISHIMORI ◽  
...  
Keyword(s):  
Flow Visualization ◽  
Water Exchange ◽  
Exchange Process ◽  
Piv Measurement

SATELLITE DATA FOR INVESTIGATION OF RECENT STATE AND PROCESSES IN THE SIVASH BAY

2017 ◽  
Author(s):  
Ekaterina Shchurova ◽  
Ekaterina Shchurova ◽  
Rimma Stanichnaya ◽  
Rimma Stanichnaya ◽  
Sergey Stanichny ◽  
...  
Keyword(s):  
Satellite Data ◽  
Water Exchange ◽  
High Salinity ◽  
Meteorological Data ◽  
Sea Surface ◽  
Azov Sea ◽  
Seasonal Wind ◽  
Ice Regime ◽  
Very High

Sivash bay is the shallow-water lagoon of the Azov Sea. Restricted water exchange and high evaporation form Sivash as the basin with very high salinity. This factor leads to different from the Azov Sea thermal and ice regimes of Sivash. Maine aim of the study presented to investigate recent state and changes of the characteristics and processes in the basin using satellite data. Landsat scanners TM, ETM+, OLI, TIRS together with MODIS and AVHRR were used. Additionally NOMADS NOAA and MERRA meteorological data were analyzed. The next topics are discussed in the work: 1. Changes of the sea surface temperature, ice regime and relation with salinity. 2. Coastal line transformation – long term and seasonal, wind impact. 3. Manifestation of the Azov waters intrusions through the Arabat spit, preferable wind conditions.

Use competition and water exchange in Marina Baja district, Alicante, Spain

2005 ◽  
Vol 5 (3-4) ◽  
pp. 265-272 ◽  
Author(s):  
T.T. Martí
Keyword(s):  
Water Exchange ◽  
Citrus Fruit ◽  
Water Markets ◽  
Tourist Industry ◽  
Related Services ◽  
Integrated Water Management ◽  
The North ◽  
Increasing Demand ◽  
Water Problems ◽  
Water Uses

The water problems in Marina Baja district, located in the north of Alicante Province, southeast Spain, gives rise to very interesting practices in the management of this scarce resource. The key issue in water use both in the Júcar Catchment and in Marina Baja district is the growing demand for water in inland areas for intensive crop irrigation (principally fruit, medlars and citrus fruit) and the growth in demand for water for urban use, as well as for use in the tourist industry and its related services mainly in the towns in the coastal areas, due to strong growth in tourism. This trend of increasing demand has created a tense situation as well as conflict between existing water uses and the need for integrated water management in the area. This step implies that procedures for water exchange contracts have to be developed, that are significantly different from emerging water markets.

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