Defining the ecological status of small forest lakes using multiple biological quality elements and palaeolimnological analysis

The ecological status of six selected rivers which are found around central Ethiopia and North Shewa Zone and exposed to environmental stresses at varied extent, was studied using biological quality elements (BQE). One thousand one hundred thirty three (1133) individuals of macroinvertebrates, from 22 families and 5 orders of insects, were collected from the rivers. Seven metrics that had low correlation (p>0.05) were selected to calculate the final B-IBI and the result showed that both sites of Akaki, Sebeta and Jemma Rivers had poor water quality whereas Beresa, Chacha and Mojo (upstream site) had relatively better water quality. Canonical Correspondence Analysis (CCA) showed that Tabanidae, Syrphidae, Culicidae, and Canidae was more strongly correlated with temperature but strongly and negatively with pH, Dissolve Oxygen (DO) and Nitrate. The result implied that the change in abundance of these groups of macroinvertebrates could indicate the change in pH, DO and Nitrate. pH and DO were significantly (p < 0.05) and positively correlated with % Ephemeroptera and% Baetidae. On the other hand, DO showed strong but negative correlation % Oligochaeta, % Non-Insect and Hillsenhoff Family Biotic Index which implied that that the change in pH and level of organic pollution can be easily monitored using these metrics.HYDRO Nepal JournalJournal of Water Energy and EnvironmentIssue: 20Page: 49-54

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Transfer of 137Cs into fish in small forest lakes

Journal of Environmental Radioactivity ◽

10.1016/j.jenvrad.2010.04.004 ◽

2010 ◽

Vol 101 (8) ◽

pp. 647-653 ◽

Cited By ~ 7

Author(s):

Ritva Saxén ◽

Sirpa Heinävaara ◽

Martti Rask ◽

Jukka Ruuhijärvi ◽

Heidi Rand

Keyword(s):

Forest Lakes ◽

Small Forest

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Differences in growth of perch (Perca fluviatilis L.) in two small forest lakes

Hydrobiologia ◽

10.1007/bf00008666 ◽

1983 ◽

Vol 101 (1-2) ◽

pp. 139-143 ◽

Cited By ~ 40

Author(s):

Martti Rask

Keyword(s):

Perca Fluviatilis ◽

Perch Perca Fluviatilis ◽

Forest Lakes ◽

Small Forest

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Hydromycoflora fungi of small forest lakes "Suchary" in the Wigry National Park

Acta Mycologica ◽

10.5586/am.1995.015 ◽

2014 ◽

Vol 30 (2) ◽

pp. 167-180 ◽

Cited By ~ 5

Author(s):

Bazyli Czeczuga

Keyword(s):

National Park ◽

Forest Lakes ◽

First Time ◽

Small Forest

One hundred and fifteen species of fungi were found in the small forest lakes "Suchary" in the Wigry National Park. The following fungi were recorded for the first time from Poland: <i>Blastociadella simplex, Rhizoclosmatium globosum, R. hyalinum, Rhopalophlyctis sarcoptoides, Condylospora spumigena, Gyoerffyella myrmecophagiforms, Helicon pluriseptatum</i> and <i>Kontospora halophila</i>.

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