Fifty Years of Physical Investigations and Related Limnological Studies on Lake Erie, 1928–1977

Mortimer, C. H.

doi:10.1016/s0380-1330(87)71664-5

Cited by 111 publications

(83 citation statements)

References 53 publications

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“…Sites like AL 2 , AL 4 and AL 6 were not directly linked with any source of pollution (streams or ore dump sites). Thus, elevated concentrations in these sites can not be explained without taking into account possible variations in mineralogy and inner redistribution mechanisms in the lake itself, like wind, tides and currents (Mortimer 1987;Lee et al 1981). The velocity of water flow above the sediment affects settling of suspended particles and resuspension of already settled particles.…”

Section: Heavy Metals Along Lake Ohrid Coastmentioning

confidence: 99%

Near-shore distribution of heavy metals in the Albanian part of Lake Ohrid

Malaj

Rousseau

Laing

et al. 2011

Environ Monit Assess

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The heavy metal contamination in Lake Ohrid, a lake shared between Albania and Macedonia, was studied. Lake Ohrid is believed to be one of the oldest lakes in the world, with a large variety of endemic species. Different anthropogenic pressures, especially heavy metal influxes from mining activities, might have influenced the fragile equilibrium of the lake ecosystem. Heavy metal concentrations in water, sediment, emergent vegetation, and fish were investigated at selected sites of the lake and a study of the heavy metals in five tributaries was conducted. The lake surface water was found to have low levels of heavy metals, but sediments contained very high levels mostly near river mouths and mineral dump areas with concentrations reaching 1,501 mg/kg for Ni, 576 mg/kg for Cr, 116.8 mg/kg for Co and 64.8 g/kg for Fe. Sequential extraction of metals demonstrates that heavy metals in the sediment are mainly present in the residual fraction varying from 75% to 95% in different sites. High heavy metal levels (400 mg/kg Ni, 89 mg/kg Cr, and 39 mg/kg Co) were found in plants (stem of Phragmites australis), but heavy metals could not be detected in fish tissue (gill, muscle, and liver of Salmo letnica and Salmothymus ohridanus).

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Section: Heavy Metals Along Lake Ohrid Coastmentioning

confidence: 99%

Near-shore distribution of heavy metals in the Albanian part of Lake Ohrid

Malaj

Rousseau

Laing

et al. 2011

Environ Monit Assess

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“…The basin has a surface area of 3080 km 2 and extends about 60 km east to west, and about 40 km north to south (Mortimer, 1987). The entire basin is shallow (7.4 m average depth; Mortimer, 1987) and has a maximum depth of 12 m at the east end. Post-glacial mud and sand mixtures, derived mostly from the Detroit River and the Maumee River, make up most of the substrate in the western basin.…”

Section: Field Areamentioning

confidence: 99%

The effect of mayfly (Hexagenia spp.) burrowing activity on sediment oxygen demand in western Lake Erie

Edwards

Soster

Matisoff

et al. 2009

Journal of Great Lakes Research

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“…Although the smallest in volume, Lake Erie is arguably the most anthropogenically impacted of the Laurentian Great Lakes. Lake Erie is composed of 3 distinct basins with a systematic west-to-east gradient of decreasing trophic status along the fetch of the lake (Mortimer 1987). Despite its reputation in past decades as a eutrophic lake, total phosphorus (TP) controls and enhanced benthic-filtering activity by exotic mussels of the genus Dreissena (i.e.…”

Section: Introductionmentioning

confidence: 99%

Effect of phosphorus amendments on present day plankton communities in pelagic Lake Erie

Wilhelm¹,

DeBruyn²,

Gillor³

et al. 2003

Aquat. Microb. Ecol.

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To address questions regarding the potential impact of elevated total phosphorus (TP) inputs (due to relaxed regulations of TP loading), a series of TP enrichment experiments were conducted at pelagic stations in the 3 hydrologically distinct basins of Lake Erie. Results of nutrient assimilation measurements and assays for nutrient bioavailability suggest that the chemical speciation, and not concentration, of nitrogenous compounds may influence phytoplankton community structure; this in turn may lead to the selective proliferation of cyanobacteria in the eastern basin of the lake. Assays with cyanobacterial bioluminescent reporter systems for P and N availability as well as N tot :P tot assimilation ratios from on-deck incubation experiments support this work. Considered in the context of a microbial food web relative to a grazing food web, the results imply that alterations in current TP loading controls may lead to alterations in the phytoplankton community structure in the different basins of the Lake Erie system. KEY WORDS: Nutrient loading · Lake Erie · Microbial process · Bioluminescent reportersResale or republication not permitted without written consent of the publisher

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Fifty Years of Physical Investigations and Related Limnological Studies on Lake Erie, 1928–1977

Cited by 111 publications

References 53 publications

Near-shore distribution of heavy metals in the Albanian part of Lake Ohrid

Near-shore distribution of heavy metals in the Albanian part of Lake Ohrid

The effect of mayfly (Hexagenia spp.) burrowing activity on sediment oxygen demand in western Lake Erie

Effect of phosphorus amendments on present day plankton communities in pelagic Lake Erie

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