Tamar Estuary, Plymouth, south west England

Ammonium and ammonia concentration parameters in water bodies; Particulate inorganic carbon concentrations in the water column; Particulate total and organic carbon concentrations in the water column; Dissolved organic carbon concentration in the water column; Dissolved oxygen parameters in the water column; Dissolved metal concentrations in the water column; Salinity of the water column; Concentration of suspended particulate material in the water column; Total dissolved inorganic carbon (TCO2) concentration in the water column

Discrete water samplers; particulates samplers; salinity sensor; sieves and filters; elemental analysers; electron microprobes

Profiles of suspended load and its organic and inorganic carbon contents as well as salinity, dissolved oxygen, ammonia and divalent manganese were recorded throughout the mixing region of the Tamar estuary, south west England, in late summer when there was pronounced net oxygen consumption. Surveys of the estuary were carried out during spring tide on the 27 and 28 August 1980. On the first day a single axial traverse of the estuary from the mouth to within 3km of Weir Head (31.3km above the mouth) was performed. On the second day repetitive traverses were made through an approximately 10km stretch of the estuary covering the high turbidity zone. Ammonia determinations and dissolved manganese sampling were confined to the first day; other properties (salinity, dissolved oxygen, suspended load and particulate carbon content) were measured on both days.

Morris, A.W., Loring, D.H., Bale, A.J., Howland, R.J.M., Mantoura, R.F.C. and Woodward, E.M.S. (1982) Particle dynamics, particulate carbon and the oxygen minimum in an estuary., Oceanologica Acta, Vol 5(3): 349-353.

Plymouth Marine Laboratory
Prospect Place The Hoe
Plymouth
England
PL1 3DH
United Kingdom