Observations on the effects of sewage discharged into a tidal harbour

Soulsby, P.G.; Lowthion, D.; Houston, M.

doi:10.1016/0025-326x(78)90379-x

Cited by 19 publications

(3 citation statements)

References 5 publications

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“…Portsmouth Harbour, U.K. (SOU LSBY et al, 1978), an impounded estuarine lagoon east of Hobart, Australia (BUTTERMORE, 1977), Visakhapatnan Harbour, at the bay of Bengal, India (SCREERAMULU etal., 1977).…”

Section: Discussionmentioning

confidence: 99%

Heavy metals inUlva lactuca collected within Tolo Harbour, an almost landlocked sea

Wong

Kwok

1982

Hydrobiological Bulletin

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Section: Discussionmentioning

confidence: 99%

Heavy metals inUlva lactuca collected within Tolo Harbour, an almost landlocked sea

Wong

Kwok

1982

Hydrobiological Bulletin

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“…Minimale Artenzahlen in verunreinigten Meeresgebieten beobachteten ebenfalls Pearson (1971Pearson ( , 1975Pearson ( , 1980Pearson ( , 1981Pearson ( , 1982 und Topping & McIntyre (1972) in schottischen und Parker (1980) in irischen Fjorden. Auch in gestre6ten Seegebieten vor Cornwall (Probert, 1981) und Portsmouth (Soulsby et al, 1978) lagen geringe Artenzahlen vor, weiterhin im Oslofjord (Gray & Mirza, 1979;Mirza & Gray, 1981) und dem Saltkfillefjord und Seegebieten West-Schwedens (Tulkki, 1968;Rosenberg, 1971Rosenberg, , 1974Rosenberg, , 1977Rosenberg, , 1980. Eine Reduzierung der Artenzahl wurde von Sfirn (1973) ffir belastete Tefle des Mittelmeeres, wie auch ffir die New Yorker Bucht von Young & Pearce (1975) und Botton (1979 beschrieben.…”

Section: ~ 100unclassified

Die Weichbodenfauna vor der Elbemündung unter dem Einfluß der Klärschlammverklappung

Mühlenhardt-Siegel

1988

Helgolander Meeresunters

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The soft bottom fauna near the River Elbe Estuary under the influence of sewage sludge. I. Seasonal variation of species number, abundance and biomass in relation to sediment structure. Macrobenthic fauna and sediment structure were studied at 6 stations from June 1979 to April 1981. The investigations were carried out in the outer estuary of the River Elbe at depths of 15-38 m near a sewage sludge dumping site. The sediment near this area consisted of a high portion of silt. Usually, very few species and small numbers of individuals were found near that dumping ground. During summer 1980, a mass development of Abra alba and several polychaete species caused an increase in species number which broke down during the following winter. The mass development observed in the study area was apparently not direCdy caused by the sludge dumping itself, but reflects the natural variability of the community structure. The number of species recorded was significantly correlated with a grain size fraction > 31 ~tm, especially in summer. The seasonal and spatial fluctuation of the benthic community could be well documented by the abundance per species (N/S index}. The Shannon-Wiener-Index (H') and eveness (J) were also useful indicators of community variabihty. The log-normal distribution did not show the seasonal and the spatial differences of the stations. Possible reasons are discussed. The biomass at the stations near the dumping area was less except during the mass development of A. alba. The average individual weight (B/N) was shown to be a good indicator of population fluctuations; polychaete biomass was positively correlated to a grain size fraction _-< 6 ~m, that of molluscs to a grain size fraction > 31 ~m. EINLEITUNG

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“…Agricultural runoff (nonpoint source) is presently a major contributor to deteriorating surface water quality in over 40 states of the United States (USEPA, 1984). Elevated nutrient input to aquatic systems can cause eutrophication and damage delicate ecosystems (Soulsby et al, 1978;Kunishi and Glotfelty, 1985;Lee and Olsen, 1985;Richardson, 1985;Rosenberg, 1985;Nixon and Lee, 1986;Burden et al, 1987;Albert, 1988;Jaffe, 1988;U.S. Dept.…”

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confidence: 99%

FATE OF NITROGEN AND PHOSPHORUS ENTERING A GULF COAST FRESHWATER LAKE: A CASE STUDY¹

DeLaune¹,

Lindau²,

Knox³

et al. 1990

J American Water Resour Assoc

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Nitrogen and P fluxes, transformations and water quality functions of Lake Verret (a coastal Louisiana freshwater lake), were quantified. Ortho‐P, total‐P, NH4+‐N NO3 ‐N and TKN in surface water collected from streams feeding Lake Verret averaged 104, 340, 59, 185, and 1,060 mg 1−1, respectively. Lake Verret surface water concentrations of ortho‐P, total‐P, NH+‐N, NO3−‐N and TKN averaged 66, 191, 36, 66, and 1,292 μg 1−1. The higher N and P concentrations were located in areas of the lake receiving drainage. Nitrification and denitrification processes were significant in removing appreciable inorganic N from the system. In situ denitrification rates determined from acetylene inhibition techniques show the lake removes 560 mg N m−2 yr−1. Laboratory investigations using sediment receiving 450 μg NH+4‐N (N‐15 labeled) showed that the lake has the potential to remove up to 12.8 g N m−2 yr−1. Equilibrium studies of P exchanges between the sediment and water column established the potential or adsorption capacity of bottom sediment in removing P from the overlying water. Lake Verret sediment was found to adsorb P from the water column at concentrations above 50 μg P 1−1 and the adsorption rates were as great as 300 μg P cm−2 day−1 Using the 137C s dating techniques, approximately 18 g N m−2 yr−1 and 1.2 g P m−2 yr−1 were removed from the system via sedimentation. Presently elevated nutrient levels are found only in the upper reaches of the lake receiving nutrient input from runoff from streams draining adjacent agricultural areas. Nitrification, denitrification, and adsorption processes at the sediment water interface over a relatively short distance reduces the N and P levels in the water column. However, if the lake receives additional nutrient loading, elevated levels will likely cover a larger portion of the lake, further reducing water quality in the lake.

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Observations on the effects of sewage discharged into a tidal harbour

Cited by 19 publications

References 5 publications

Heavy metals inUlva lactuca collected within Tolo Harbour, an almost landlocked sea

Heavy metals inUlva lactuca collected within Tolo Harbour, an almost landlocked sea

Die Weichbodenfauna vor der Elbemündung unter dem Einfluß der Klärschlammverklappung

FATE OF NITROGEN AND PHOSPHORUS ENTERING A GULF COAST FRESHWATER LAKE: A CASE STUDY¹

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Observations on the effects of sewage discharged into a tidal harbour

Cited by 19 publications

References 5 publications

Heavy metals inUlva lactuca collected within Tolo Harbour, an almost landlocked sea

Heavy metals inUlva lactuca collected within Tolo Harbour, an almost landlocked sea

Die Weichbodenfauna vor der Elbemündung unter dem Einfluß der Klärschlammverklappung

FATE OF NITROGEN AND PHOSPHORUS ENTERING A GULF COAST FRESHWATER LAKE: A CASE STUDY1

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FATE OF NITROGEN AND PHOSPHORUS ENTERING A GULF COAST FRESHWATER LAKE: A CASE STUDY¹