Ohio Journal of Science: Volume 85, Issue 5 (December, 1985)

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https://kb.osu.edu/handle/1811/22085

Front Matter
pp. 0
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Geology of the Peebles Quadrangle, Adams County, Ohio
Swinford, E. Mac pp. 218-230
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Snail Distributions in Lake Erie: The Influence of Anoxia in the Southern Central Basin Nearshore Zone
Krieger, Kenneth A. pp. 230-244
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A Brief Review of the Genus Polypedilum in Ohio, With Keys to Known Stages of Species Ocurring in Northeastern United States (Diptera, Chironomidae)
Boesel, M. W. pp. 245-262
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Determiniation of Flouride Ion in Well Waters of Eastwood School District, Wood, County, Ohio
Jones, Rose M.; Parker, Gordon A. pp. 263-266
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Brief Note: Surface Topography of Hammerschmidtiella diesingi (Nematoda: Oxyuroidea) Eggs Using Scanning Electron Microscope
Yu, Xiong; Crites, John L. pp. 266-267
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Necrology
pp. 268-274
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Address of New Editor
pp. 275-275
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Officers, Committees and Academy Representatives for 1985-56
pp. 276-278
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Index to Volume 85
pp. 279-286
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Table of Contents, Vol. 85
pp. 287-288
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Back Matter
pp. 999
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Now showing 1 - 12 of 12

Back Matter
(1985-12)
Table of Contents, Vol. 85
(1985-12)
Index to Volume 85
(1985-12)
Officers, Committees and Academy Representatives for 1985-56
(1985-12)
Address of New Editor
(1985-12)
Necrology
(1985-12)
Brief Note: Surface Topography of Hammerschmidtiella diesingi (Nematoda: Oxyuroidea) Eggs Using Scanning Electron Microscope
(1985-12) Yu, Xiong; Crites, John L.
Determiniation of Flouride Ion in Well Waters of Eastwood School District, Wood, County, Ohio
(1985-12) Jones, Rose M.; Parker, Gordon A.
The purpose of this investigation was to determine the amount of fluoride ion present in the well water of Eastwood Local School District, Wood County, Ohio. Ninety-two water samples were gathered from separate wells in the district and analyzed for fluoride content. Fluoride determination was made with a fluoride ion-selective electrode using a direct potentiometric method. pH measurements were also made upon the samples. Fluoride levels were found to range from 0.6 to 3.8 parts per million. pH measurements varied from 6.91 to 8.30.
A Brief Review of the Genus Polypedilum in Ohio, With Keys to Known Stages of Species Ocurring in Northeastern United States (Diptera, Chironomidae)
(1985-12) Boesel, M. W.
Of the 25 species recorded for the northeastern states, only four are abundant: Polypedilum scalaenum, with larvae occurring commonly among algae in streams and lotic situations in lakes; P. convictum, highly variable, with larvae occurring widely in rocky streams and in lake localities subject to wave action; P. halterak, sometimes regarded as a nuisance species and a pioneer in silting new reservoirs, present in shallower water of eutrophic lakes and ponds; and P. illinoense, with larvae commonly associated with vegetation {Potamogeton, Nelumbo, Myriophyllum, moss) in relatively quiet and unpolluted water. Less abundant but present in Ohio are the following: P. albicorne, P. tritum, P. sordens, P. fallax, P. calopterus, P. Ontario, P. albinodus, P. acifer, P. trigonus, P. opbioides and P. aviceps. Not yet recorded for Ohio are P. nubeculosum, P. laetum, P. braseniae, P. artifer, P. apicatum, P. parvum, P. gomphus, P. vibex, P. pedatum and P. angustum. Adults of Polypedilum have been collected from May to October in Ohio. Larvae vary from pale yellow to bright red and occupy a wide range of habitats from swift streams to ponds and leaf litter. Generally they form silken tubes in silt or sand or in plant tissues, feeding principally on plankton but larvae are known to occupy cases of caddisworms. Typically late-instar larvae overwinter. Larvae show a wide range of response to organic and industrial pollution. Immatures for 14 of the 25 northeastern species are known.
Snail Distributions in Lake Erie: The Influence of Anoxia in the Southern Central Basin Nearshore Zone
(1985-12) Krieger, Kenneth A.
The distributions and abundances of gastropods collected in sediment grab samples in 1978 and 1979 in the southern nearshore zone of the central basin of Lake Erie were compared with earlier gastropod records from throughout the lake. Since the 1920s, 34 species in eight families have been reported for the lake proper. Sixteen species have been reported only once, 13 of them in three reports prior to 1950. All but three of the species collected by two or more authors prior to the mid-1950s have also been collected in the past decade. The most frequently reported species are Valvata trkarinata, Bithynia tentaculata, Elimia ( —Goniobasis) livescens, Physella sp., Amnkola limosa, Pleuroceraacuta and V. sincera. Only six of 19 studies reported species densities, and most did not record sample locations, depths or substrates. Thus, only a limited comparison of the gastropod fauna between studies was possible, with the exception of several well documented studies in the western basin up to the early 1960s. Of four introduced species in Lake Erie, only two were found in the present study, and these appear to have no influence on the present distributions of the native species. The absence of snails in the southwestern part of the study area and at the mouths of the Cuyahoga and Black rivers appears to be the result of prolonged anoxia during one or more summers preceding the study.
Geology of the Peebles Quadrangle, Adams County, Ohio
(1985-12) Swinford, E. Mac
The rock sequence exposed in the Peebles quadrangle, Adams Co., Ohio, consists of over 240 m of Ordovician through Mississippian age rocks. These carbonate rocks, shales, and sandstones have been subdivided into 13 formations. Units which have been recently recognized in this area include the Bull Fork Formation (Upper Ordovician), the Preachersville Member of the Drakes Formation (Upper Ordovician), the Drowning Creek Formation (Silurian), and the Three Lick Tongue of the Chagrin Member of the Ohio Shale (Upper Devonian). These strata generally dip 6—8 m per km to the east, but the dip increases to 10—11 m per km in the southeast portion of the quadrangle. The increase in dip is due to the Adams Co. monocline. The monocline is thought to be the result of draping of Paleozoic rocks over a possible basement fault.
Front Matter
(1985-12)

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