Eutrophication of the salt valley reservoirs, 1968–1973 II. Changes in physical and chemical parameters of eutrophication

Hergenrader, Gary L.

doi:10.1007/bf00008756

Cited by 10 publications

(1 citation statement)

References 14 publications

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“…This may be due to lower concentration or may be rapid recycling of these nutrients. Similar observations were made by Steinhart et al (2002) and Hergenrader (1980). Temperature and turbidity manifested negative relationship with phytoplanktons.…”

Section: Resultssupporting

confidence: 89%

Influence of Water quality on the biodiversity of phytoplankton in Dhamra River Estuary of Odisha Coast, Bay of Bengal

Palleyi¹,

Kar²,

Panda³

2011

Journal of Applied Sciences and Environmental Management

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Dhamra estuarine ecosystem is a hotspot of rich biological diversity which supports a patch of mangrove along with unique flora and fauna. In this study, the diversity of phytoplankton population and other factors that control their growth and biodiversity were investigated. The samples were collected monthly from Dhamra estuary of Bay of Bengal at 6 different stations (grouped under three regions) from March -2008 to February -2009. A total of 41 genera of phytoplankton species belonging to 4 classes of algae were identified. The maximum value of 9.3 X 10 4 cells l -1 was recorded in post monsoon season. Phytoplankton of Bacillariophyceae, appearing throughout the year, and represent majority of population (75-94%) at all the sampling stations, followed by Dinophyceae (3-14%), Cyanophyceae (3-8%) and Chlorophyceae (0-4%) classes. The Shannonweavers diversity index (H) remains between 0.22 and 2.49. Based on the correlation coefficient data, phytoplankton shows positive relationship with DO, salinity, nutrients and negative relationship with temperature and turbidity. Present study shows that the occurrence and diversity of these primary producers do not subscribe to a single dimensional phenomenon of a single factor, rather than, a consequence of a series of supported factors which will help to maintain and balance such type of fragile ecosystem. @JASEM

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Section: Resultssupporting

confidence: 89%

Influence of Water quality on the biodiversity of phytoplankton in Dhamra River Estuary of Odisha Coast, Bay of Bengal

Palleyi¹,

Kar²,

Panda³

2011

Journal of Applied Sciences and Environmental Management

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A Natural Phosphate Source for Lake Waccamaw, North Carolina, USA

Cahoon

Kucklick

Stager

1990

Intl Review of Hydrobiology

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A limestone outcrop along the north shore of Lake Waccamnw, North Carolina, is foiind to cont.airi ca. 0.1 yo phosphate by weight,. Weathering proc s have probably driven steady inputs of phosphate from this soiircc throughout the lake's history, iLccounting for its near eutrophic state. The sediments of 1,iike \\'iiccimaw are enriched with phosphate, particnlarly in the littoral zone near the outcrop. Chemicd and biological processes apparently remove phosphate from solution rapidly, making detection of it soluhlc phosphate signal near the outcrop difficiilt. Managemcnt of niitricnt inputs and wrtcr qnality in Lake \Vl'ucciunaw requires consideration of the effects of this in-lake source of phosphate. Other sources of phosphate, partjicularly in the lake's drainiige basin, niity be less important than previously thonght.

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Eutrophication of the Salt Valley Reservoirs, 1968?73 III. The macroinvertebrate community: Its development, composition, and change in response to eutrophication

Hergenrader

Lessig

1980

Hydrobiologia

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The macroinvertebrate communities of four flood control reservoirs in eastern Nebraska, differing in age and degree of eutrophy were investigated from Ekman grab samples. Generally, the longer a reservoir had been influenced by eutrophication the larger the standing crop in it. Chironomids, ceratopogonids. fingernail clams, and Hexagenia were important at various stages of eutrophication with Chironomus predominating in the most eutrophic reservoirs. Tubifex decreased with eutrophication as did Sphaerium simili while Sphaerium declive maintained its abundance and sometimes increased.The chironomids Chironomus, Coelotanypus, and Procladius, fingernail clams, and Tubifex were early colonizers in the newest reservoir and developed a total standing crop as large the first summer as in subsequent ones. However, its composition became more diverse with time. In one reservoir sampled yearround, the standing crop was largest in late fall or early winter and smallest during summer. The most accurate information on macro-invertebrate standing crops in lakes and reservoirs comes from data collected on a year-round basis.

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Eutrophication of the salt valley reservoirs, 1968–1973 II. Changes in physical and chemical parameters of eutrophication

Cited by 10 publications

References 14 publications

Influence of Water quality on the biodiversity of phytoplankton in Dhamra River Estuary of Odisha Coast, Bay of Bengal

Influence of Water quality on the biodiversity of phytoplankton in Dhamra River Estuary of Odisha Coast, Bay of Bengal

A Natural Phosphate Source for Lake Waccamaw, North Carolina, USA

Eutrophication of the Salt Valley Reservoirs, 1968?73 III. The macroinvertebrate community: Its development, composition, and change in response to eutrophication

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