FIW 2114 Lecture Notes - Lecture 23: Point Source Pollution, Turbidity, Aquatic Plant

• School: Virginia Tech
• Department: Fisheries and Wildlife Sciences
• Course: FIW 2114
• Professor: Karpanty

Document Summary

Ecosystem management: an ecologically-based natural resource strategy that maintains ecosystem integrity while producing essential commodities and other values in a manner that is ecologically sustainable, socially acceptable, and economically feasible. Maintain viable populations of all native species in their original area. Represent, ideally in protected areas, all native habitat types across their natural range of variation. Manage over time-and spatial-scales long/large enough to maintain the ecological and evolutionary potential of species. Accommodate human use and occupancy within these constraints. Supports 500,000 waterfowl in winter; major fish nurseries. Point source pollution (you know where it came from and can be regulated) vs. non-point source pollution (agricultural runoff, don"t know that actually location) Application to civil litigation in 2010 deepwater horizon spill. As recently as the 1980s, cb provided 50% of nation"s oyster harvest . Today, supports only a small percent of original stocks. Filter plankton and nutrients from water (regulating) Food for water birds and people (provisioning)