Although salmon have demonstrated an ability to rapidly colonize streams near receding glaciers (Milner 1987), harsh and dynamic postglacial conditions (frigid, unstable, low-productivity streams with high sediment loads) probably would have constrained opportunities for diversification.
This investigation led to high BD productivity (>0.15 gBD gcat−1 h−1) and high BD concentration in the product stream (>10,000 Vppm).
Productivity is defined as the ratio of moles of N2 in the product stream to the kg of the adsorbent per cycle time.
Part of his reputation rises from his productivity — a stream of books, monographs, articles, lectures and commentary.
The dataflow programming paradigm shows an important way to improve programming productivity for streaming systems.
Biotic responses to drought and flooding in tropics are similar to those in temperate streams while in-stream productivity is limited by the same factors: nutrients, shading, disturbance, and trophic structure.
Generally most active around dawn and dusk (crepuscular), platypuses can also be active during the day depending on the season, cloud cover, stream productivity, and even individual preference.
We postulate that restoring travertine to Fossil Creek will increase stream productivity, rates of litter processing, and energy flow up the food web.
Managers adopting enrichment strategies that attempt to stimulate diminished stream productivity using SCA should understand the benefits and limitations of such an approach.
Sea level rise, ocean acidification, changes in stream productivity, increased habitat availability at the northern end of the range, and myriad other anticipated and unanticipated effects of climate change will further complicate the evolutionary puzzle confronting salmon.
As well as an important contribution to estuarine and stream productivity [ 3], salmon nutrients are transferred from streams into adjacent forests by bears and wolves where remnants of the partially-consumed carcasses are used by a diverse assemblage of vertebrate and invertebrate scavengers [ 4- 7].
