Recent limnological changes and their implication on fisheries in Lake Baringo, Kenya | Zendy

Reuben Omondi | Zendy; Elijah Kembenya | Zendy; Chrisphine S. Nyamweya | Zendy; Henry Ouma | Zendy; S.K. Machua | Zendy; Zachary Ogari | Zendy

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Recent limnological changes and their implication on fisheries in Lake Baringo, Kenya

Author(s) -

Reuben Omondi,

Elijah Kembenya,

Chrisphine S. Nyamweya,

Henry Ouma,

S.K. Machua,

Zachary Ogari

Publication year - 2014

Publication title -

journal of ecology and the natural environment

Language(s) - English

Resource type - Journals

ISSN - 2006-9847

DOI - 10.5897/jene2014.0438

Subject(s) - principal component analysis , nutrient , environmental science , chlorophyll a , environmental chemistry , sampling (signal processing) , chemical oxygen demand , hydrology (agriculture) , ecology , chemistry , biology , mathematics , environmental engineering , statistics , botany , geology , wastewater , geotechnical engineering , filter (signal processing) , computer science , computer vision

Water samples for physico-chemical analysis for this study were collected monthly for five years between April 2008 and March 2013. Conductivity, temperature, dissolved oxygen and pH was measured in situ using a Surveyor II model hydrolab. Chlorophyll-a concentration was determined using a Genesys 10S Vis spectrophotomer. Nutrients were determined using standard methods and procedures. Analysis of Variance (ANOVA) was used to determine spatial and temporal variation in physico-chemical and biological factors. Principal component analysis (PCA) was performed to establish the correlation of the physico-chemical and biological parameters among sampling stations and to group stations with similar physico-chemical parameters. Both spatial and temporal significant variations (P < 0.05) were detected in the concentrations of the nutrients measured during the study. Key words: Limnological changes, parameters, Lake Baringo, Kenya.

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