Travaux, Volume 23, Part 1E. Schweizerbart'sche Verlagsbuchhandlung., 1988 - Fresh-water biology |
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Page 397
... pelagic charr and the three - spined stickleback ( Ga- sterosteus aculeatus L. ) . Yearly catch of Arctic charr in ... pelagic zone of Lake 95 is · Table 2. Calculated net primary- and secondary production ( kcal · m 2 yr1 ) of the ...
... pelagic charr and the three - spined stickleback ( Ga- sterosteus aculeatus L. ) . Yearly catch of Arctic charr in ... pelagic zone of Lake 95 is · Table 2. Calculated net primary- and secondary production ( kcal · m 2 yr1 ) of the ...
Page 400
... pelagic piscivorous charr , feeding on sticklebacks . Energy flow in subarctic neo - volcanic lakes The North ... pelagic production is dominant ( Table 2 and Fig . 4 ) . It is evident that the main energy flow passes through the pelagic ...
... pelagic piscivorous charr , feeding on sticklebacks . Energy flow in subarctic neo - volcanic lakes The North ... pelagic production is dominant ( Table 2 and Fig . 4 ) . It is evident that the main energy flow passes through the pelagic ...
Page 425
... PELAGIC 1983 8.8 08 JUV 8 12 BENTHIC 1983 16 17.8 24 220 20 16 12 PELAGIC 8 4 0 4 8 12 16 20 24 do % 24 20 16 12 8 4 O 1983 1985 8888 800 88882 1985 3.9 BENTHIC 1985 3.9 PELAGIC AND BENTHIC W 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 ...
... PELAGIC 1983 8.8 08 JUV 8 12 BENTHIC 1983 16 17.8 24 220 20 16 12 PELAGIC 8 4 0 4 8 12 16 20 24 do % 24 20 16 12 8 4 O 1983 1985 8888 800 88882 1985 3.9 BENTHIC 1985 3.9 PELAGIC AND BENTHIC W 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 ...
Contents
Presidential Address | 1 |
Experimental studies of chemical stressors on whole lake ecosystems | 11 |
Plenary Lectures | 42 |
35 other sections not shown
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Common terms and phrases
abundance acid addition algae algal analysis annual appears aquatic average bacteria basin biomass calculated carbon cells changes chemical chlorophyll-a collected concentrations decrease density depth determined dissolved distribution dominant ecosystems effects environment estimated et al eutrophic experimental experiments factors Fish flow freshwater growth higher important increased indicate inputs Island lakes less limited Limnol loading losses lower macrophyte major maximum mean measured methods Michigan mixing natural nitrogen North nutrient observed occur organic oxygen period phosphorus phytoplankton plankton plants population present primary production proportion range rates ratio reduction References region relation relationships relative Research response River samples seasonal sediments showed significant similar species spring station stickleback stream summer surface Table temperature tion trophic University upper values variables variation winter zooplankton