Abstract
Estimates of the biological production of entire lake fish communities were collected from the published literature on lakes covering a wide range of geographic areas and tropic status. Fish production is uncorrelated with the morphoedaphic index but closely correlated with annual phytoplankton production (r2 = 0.79), mean total P concentration (r2 = 0.67), and annual average fish standing stock (r2 = 0.67). Conversion of phytoplankton into fish production is 100 times more efficient in oligotrophic lakes than hyper-eutrophic ones, but a much lower fraction of fish production can be channeled to sustainable yield in oligotrophic lakes. Sustained yields were frequently as little as 10% of the annual community fish production. -from Authors
Original language | English (US) |
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Pages (from-to) | 1929-1936 |
Number of pages | 8 |
Journal | Canadian Journal of Fisheries and Aquatic Sciences |
Volume | 47 |
Issue number | 10 |
DOIs | |
State | Published - 1990 |
Externally published | Yes |