75°
NEW
JERSEY
l
74·
-'
.'
73°
, ft1] 2 mg/l
m 1 mg/l
o mg/l
KILOMETERS
o
'20
' 0
7
r- .. I...:!
i i i
D
1Q
~o
JO
NAUTICAl, o\oII'L.E:S
7'1'
40°
39°
Fig. 39. Maximum extension of the area with poor oxygen conditions (below 2 mg/!) or without
oxygen in the sea area south of the dumping ground for sewage sludge in New York Bight, summer 1976 (Steimle and Sindermann 1978)
Annuallly, approximately 1 million m 3 of sludge are dumped into the Clyde River
from Glasgow, Scotland, at a depth of 80 m. Affected by this are approximately
10 km 2 of Irish Sea bottom which have been made uninhabitable for the Norway
lobster (Nephrops norvegicus). It is estimated that the fishing industry is losing an
annual income of £ 75,000 because of this. On the other hand, additional effects on
fish counts have been insignificant. The effects on phytoplankton are approximately
like those of other areas close to the coast; the production of plankton in affected
65
NEW
JERSEY
l
74·
-'
.'
73°
, ft1] 2 mg/l
m 1 mg/l
o mg/l
KILOMETERS
o
'20
' 0
7
r- .. I...:!
i i i
D
1Q
~o
JO
NAUTICAl, o\oII'L.E:S
7'1'
40°
39°
Fig. 39. Maximum extension of the area with poor oxygen conditions (below 2 mg/!) or without
oxygen in the sea area south of the dumping ground for sewage sludge in New York Bight, summer 1976 (Steimle and Sindermann 1978)
Annuallly, approximately 1 million m 3 of sludge are dumped into the Clyde River
from Glasgow, Scotland, at a depth of 80 m. Affected by this are approximately
10 km 2 of Irish Sea bottom which have been made uninhabitable for the Norway
lobster (Nephrops norvegicus). It is estimated that the fishing industry is losing an
annual income of £ 75,000 because of this. On the other hand, additional effects on
fish counts have been insignificant. The effects on phytoplankton are approximately
like those of other areas close to the coast; the production of plankton in affected
65