Factors relating to annual planktonic primary production in five small oligotrophic lakes in Terra Nova National Park, Newfoundland

• Published in: Internationale Revue der gesamten Hydrobiologie und Hydrographie
• Main Author: Kerekes, Joseph J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1977
• Subjects: Newfoundland
• Online Access: http://dx.doi.org/10.1002/iroh.1977.3510620303; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Firoh.1977.3510620303; https://onlinelibrary.wiley.com/doi/pdf/10.1002/iroh.1977.3510620303

Abstract Annual planktonic primary production in five small oligotrophic lakes in Newfoundland, as measured at maximum depth ( P ‐area) ranged from 5.6 to 12.0 g C/m 2 /year. Production per unit surface area representative of the whole lake basin ( P ‐area ) was considerably lower in the shallower lakes (3.3 to 6.4 g C/m 2 /yr), while production expressed per unit volume representative of the whole lake basin ( P ‐vol ) was the higher in the shallower lakes (0.6 to 4.1 g C/m 3 /yr). Production efficiency varied from lake to lake and throughout the year, but it remained fairly stable in a shorter term. Production efficiency and insolation was used to estimate annual production. Lakes with higher summer concentration of total phosphorus had higher rates of carbon assimilation.