scholarly journals Evaporation and Temperature Changes in the English Channel

1925 ◽  
Vol 13 (3) ◽  
pp. 678-692 ◽  
Author(s):  
H. W. Harvey
Keyword(s):  
Seasonal Changes ◽  
Atlantic Water ◽  
English Channel ◽  
The South ◽  
Marine Animals ◽  
Temperature Changes ◽  
Temperature Conditions ◽  
South West

Since April, 1921, observations of temperature and salinity have been made at depths from top to bottom of the sea at Station El, 20 miles to the south-west of Plymouth, where the depth is 70 metres. These observations already throw some light on the causes of different sea temperatures during the same month in different years. As these temperature differences from year to year play an all-important part in the life of cold-blooded marine animals (1), it is of particular interest not only to follow their seasonal changes, but to arrive as far as possible at the causes which govern them.Changes in salinity and the temperature conditions during 1921 showed a marked inflow of warm highly saline Atlantic water into the English Channel, and a very marked inflow into the El area during September, October and November of that year (2). From that time until the end of 1923 there has been an irregular fall in salinity of the water at El.

scholarly journals Seasonal Changes in the Silica Content of Natural Waters in Relation to the Phytoplankton.

1926 ◽  
Vol 14 (1) ◽  
pp. 89-99 ◽  
Author(s):  
W. R. G. Atkins
Keyword(s):  
Seasonal Changes ◽  
Natural Waters ◽  
Atlantic Water ◽  
Silica Content ◽  
English Channel ◽  
Fresh Waters ◽  
The Times

1. The method of Dienert and Wandenbulcke permits of the estimation of silicate in solution down to the limit of 0-04 mg. of silica per litre, which cannot be distinguished from zero. The phosphate normally present does not interfere with the reaction.2. All fresh waters examined were found to contain more silicate than does the water of the English Channel.3. The water of Plymouth Sound is richer in silicate than that of the sea.4. At Station El in the English Channel silicate decreases during spring, from a winter maximum of 200-240 mg. per cubic metre, so that from April to June, 1925, the amount left, recorded as 40 mg. per cubic metre, was indistinguishable from zero. At this time the water was stripped of phosphate also. Silicate increased again till early July, decreased in August and again in November ; the times of decrease are suggested as being those of diatom increase.5. In deep Atlantic water silicate is much more abundant than in the English Channel; values from 360 mg. per cubic metre at 1000 metres to 1200 mg. at 3000 metres were obtained. In winter at any rate the surface value in the Atlantic is similar to that off Plymouth, about 110 mg.per m3 in 1925.

scholarly journals The water flow into the English Channel from the south-west

1960 ◽  
Vol 39 (2) ◽  
pp. 173-208 ◽  
Author(s):  
L. H. N. Cooper
Keyword(s):  
Water Flow ◽  
Physical Oceanography ◽  
English Channel ◽  
British Isles ◽  
The South ◽  
South West ◽  
Shallow Seas

The physical oceanography of the shallow seas south-west of the British Isles ismuch influenced by the exchanges of waters around headlands between neighbouring areas of the sea. These are

scholarly journals Contributions to the Biology of the Mackerel Scomber Scombrus L. II. A Study of the Fishery in the South-West of England, with Special Reference to Spawning, Feeding, and ‘Fishermen's Signs’

1949 ◽  
Vol 28 (3) ◽  
pp. 555-581 ◽  
Author(s):  
G. A. Steven
Keyword(s):  
Special Reference ◽  
Deep Sea ◽  
English Channel ◽  
The South ◽  
Scomber Scombrus ◽  
South West

In a previous paper (Steven, 1948), brief accounts are given of three distinct mackerel fisheries that at one time existed in the south-west of England—an inshore fishery in the English Channel carried on from Plymouth, a deep-sea fishery from Newlyn, Cornwall, and an inshore fishery from Newlyn and some other Cornish ports. One of these fisheries, the Plymouth one, no longer exists. After a few years of considerable activity following the termination of the 1914–18 war, this fishery collapsed in 1924 (Table I) and came entirely to an end a few years later. The small quantities of mackerel landed at Plymouth in subsequent years have been incidental catches by vessels fishing for herrings or pilchards.

Middle and Late Iron Age Occupation at Cadnam Farm, Alton, Hampshire

2018 ◽  
Vol 73 (1) ◽  
pp. 110-136
Author(s):  
Oliver Good ◽  
Richard Massey
Keyword(s):  
Iron Age ◽  
The South ◽  
Late Iron Age ◽  
South West ◽  
Middle Iron Age

Three individual areas, totalling 0.55ha, were excavated at the Cadnam Farm site, following evaluation. Area 1 contained a D-shaped enclosure of Middle Iron Age date, associated with the remains of a roundhouse, and a ditched drove-way. Other features included refuse pits, a four-post structure and a small post-built structure of circular plan. Area 2 contained the superimposed foundation gullies of two Middle Iron Age roundhouses, adjacent to a probable third example. Area 3 contained a small number of Middle Iron Age pits, together with undated, post-built structures of probable Middle Iron Age date, including a roundhouse and four and six-post structures. Two large boundary ditches extended from the south-west corner of Area 3, and were interpreted as the funnelled entrance of a drove-way. These contained both domestic and industrial refuse of the late Iron Age date in their fills.

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