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Sunday, July 19, 2020 | History

2 edition of Spatial and seasonal structure of rotifer communities in Lake Huron found in the catalog.

Spatial and seasonal structure of rotifer communities in Lake Huron

Richard S Stemberger

Spatial and seasonal structure of rotifer communities in Lake Huron

by Richard S Stemberger

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  • 37 Currently reading

Published by Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available to the public through the National Technical Information Service in Duluth, Springfield, Va .
Written in English

    Subjects:
  • Rotifera -- Huron, Lake (Mich. and Ont.),
  • Plankton -- Research

  • Edition Notes

    Statementby Richard S. Stemberger, John E. Gannon, and F. James Bricker
    SeriesResearch reporting series -- EPA-600/3-79-085
    ContributionsGannon, John E, Bricker, F. James, Environmental Research Laboratory (Duluth, Minn.), University of Michigan. Biological Station, Large Lakes Research Station
    The Physical Object
    Paginationxvii, 160 p. :
    Number of Pages160
    ID Numbers
    Open LibraryOL13603651M

    Three statistical methods, ANOVA, MRT, and IndVal were applied to distinguish the structure, biomass, and secondary production of their rotifer communities. The rotifer fauna was rich (91 species). Temperature, an indicator of seasonal change, and hydrological connection to river were major factors structuring rotifer communities. Rotifers (Rotifera) are animals which occur in every type of aquatic environment, both marine and freshwater. They owe their wide distribution to rapid reproduction. Due to their abundance, they play an important role in freshwater ecosystems. There are around rotifer species, of them from Europe.

    Forty‐one species of Rotifera are recorded from the River Sokoto, North Nigeria, and details of their seasonal abundance are given. There is a marked change in the composition of the rotifer fauna of the river when it floods in the single wet season. The cyclomorphosis of Keratella tropica begins with the appearance of the species in December. The rotifer community variations were correlated with changes in abiotic and biotic environmental factors. Abiotic factors affected the rotifers directly or indirectly. Temperature and some toxic ions may have directly affected the rotifers, and temperature accounted for a relatively high proportion of the variability in the rotifer community.

    The aim of this study was to describe the seasonal variations of rotifer species in Xochimilco Lake. METHODS AND MATERIALS Samples were collected from four different sites in Lake Xochimilco. These were Lake Xaltocan, Canal Texhuilo, Island of Wac, and a small canal in a semi-rural area receiving wastes from a local dairy farm. Zooplankton and. Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA. K. D. Dickerson. Department of Biology, Missouri State University, South National Avenue, Springfield, Missouri , USA. Search for more papers by this author.


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Spatial and seasonal structure of rotifer communities in Lake Huron by Richard S Stemberger Download PDF EPUB FB2

Get this from a library. Spatial and seasonal structure of rotifer communities in Lake Huron. [Richard S Stemberger; John E Gannon; F James Bricker; Environmental Research Laboratory (Duluth, Minn.); University of Michigan.

Biological Station.; Large Lakes Research Station.]. EPA/ August SPATIAL AND SEASONAL STRUCTURE OF ROTIFER COMMUNITIES IN LAKE HURON by Richard S. Stemberger, John E. Gannon, and F. James Bricker Biological Station The University of Michigan Pellston, Michigan Grant Nos.

R and R Project Officer Nelson A. Thomas Large Lakes Research Station. Rotifer seasonal succession and copepod predation in Lake Michigan.

Great Lakes Res. ____, Gannon, J. E., and Bricker, F. Spatial and seasonal structure of the rotifer com munities in Lake Huron. United States Environmen tal Protection Agency, Report number EPA/3Environmental Research Laboratory, Duluth, by: Request PDF | On Jan 1,G.M.

El-Shabrawy and others published Seasonal and spatial variation in zooplankton structure in Lake Nasser. II. The spatial-temporal changes in rotifer species composition and community structure and their relationship with key environmental factors were investigated.

Phytoplankton and zooplankton population dynamics in southeastern Lake Michigan provide indirect evidence that selective Cyclops predation and food resource levels are important determinants of rotifer species succession. The spring rotifer community, dominated by the soft-bodied Synchaeta, declined in abundance by late spring and was succeeded by a.

Rotifer community structure was investigated in Yangcheng Lake in Dominant species and species diversity indices were determined and Q B/T was used to assess water quality. The present investigation deals with spatial and seasonal variations on dynamics of rotifers in relation to environmental factors studied from a shallow tropical ox-bow lake, Akaipur, in lower.

Abstract. Rotifer community structure was investigated in Yangcheng Lake in Dominant species and species diversity indices were determined and Q B/T was used to assess water quality.

The annual average density and biomass of the rotifers in Yangcheng Lake was 2 ± 1 ind./L and ± mg/L, respectively. Spatial and temporal variation of rotifers in Lake Sattal of Western Himalaya was studied from January to December A total of 22 rotifer species could be identified in the lake with a biannual mean abundance of × individuals/m3 in eastern basin and × individuals/m3 in western basin having maximum abundance during summer season.

Community structure and spatial-temporal pattern of planktonic rotifers of Lake Dishui in the reclaimed beach land, Shanghai Article January with 3 Reads How we measure 'reads'.

Earlier rotifer communities from Lake Huron were not as far removed from those of Lake Superior as was the case with Lake Michigan, and thus there was less evidence of an increase in overlap with Lake Superior communities over time.

Download: Download full-size image; Fig. Non-metric multidimensional scaling (MDS) ordination of generic. The abundances, population dynamics and production of the rotifer community of Lough Neagh were examined for a three year period.

Keratella cochlearis was the most abundant species accounting for over 40% of biomass followed by Polyarthra dolichoptera and Notholca acuminata. The mean standing crop for the rotiferan zooplankton increased in successive years (41, 51. The seasonal mean abundance and biomass of ciliates, rotifers, nauplii, cladocerans, and cyclopoid copepods were significantly (P lake trophy, but calanoid copepod abundance and biomass varied independently of lake trophy.

MDS ordination of summer rotifer communities from – resulted in a separation of the lakes along a first axis apparently corresponding to a trophic gradient, with Lake Superior at the extreme right end of the axis, Lake Huron and Lake Michigan at intermediate points, and western Lake Erie at the left end.

The second ordination axis. Nadia Diovisalvi, Gladys E. Salcedo Echeverry, Leonardo Lagomarsino, Horacio E. Zagarese, Seasonal patterns and responses to an extreme climate event of rotifers community in a shallow eutrophic Pampean lake, Hydrobiologia, /s,1. A prominent feature of Lake Nasser is the presence of khors (dendritic side extensions).

We studied the zooplankton of the larger khors and coastal zone of the main lake in andand found an assemblage of rotifers, cladocerans and copepods that was partly tropical, partly temperate, at relatively high biomasses. Spatial differences were weak, but the upstream. The diagram distinctly shows that Lake Jinghu has a noticeably different rotifer community structure than does Lake Xiyanghu (Fig.

2A). The species-environment relationship is presented in. Spatial and seasonal structure of rotifer communities in Lake Huron. U.S. Environmental Protection Agency, Research Reporting Series EPA/ 3–80– U.S. Environmental Protection Agency, Duluth, Minnesota.

Joseph C. Makarewicz, Paul Bertram, Theodore W. Lewis, Changes in Phytoplankton Size-class Abundance and Species Composition Coinciding with Changes in Water Chemistry and Zooplankton Community Structure of Lake Michigan, toJournal of Great Lakes Research, /S(98), 24, 3, (), ().

BeforeDaphnia retrocurva and Daphnia galeata mendotae were the dominant species of Daphnia in Lake Michigan. Between andDaphnia community structure in the offshore region shifted toward greater dominance of the larger D.

galeata mendotae, with Daphnia pulicaria, another large species, dominating by This continued through summer   The qualitative and quantitative structure of rotifer and crustacean zooplankton inhabiting Stratiotes beds and pelagial zone have been studied in different types of lakes.

In 12 lakes we recorded rotifer and 52 crustacean species, with more than 90% of them being present in the Stratiotes beds. There were twice more zooplankton species in the Stratiotes .Abstract. Zooplankton is studied in the ancient, tectonic, oligomictic and oligotrophic Lake Ohrid (Macedonia, South Eastern Europe).

The main aim of this study was to assess the seasonal and spatial patterns of the zooplankton functional feeding guilds .