Ch 52- ecology (1 slide per page)

18 campbell 8th ed nutrient rich o2 poor aquatic

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: phic - Nutrient poor - O2 rich Eutrophic Figure 52.18 (Campbell 8th ed) - Nutrient rich - O2 poor Aquatic Biomes 35 Freshwater Lakes Physical Environment – standing bodies of water but vary a lot in size & depth, temp & light penetration Chemical Environment – Salinity, [O2] & nutrients vary among lakes and seasonally • Winter/summer lakes stratified by temperature so little mixing occurs • Spring/Autumn turnover, due to lack of temp stratification, brings O2 down and nutrients up Figure 52.14 (Campbell 9th ed) Aquatic Biomes 39 Freshwater Wetlands Physical Environment – w/ H2O saturated soil and standing H2O occasionally via floods or all the time & w/ H2O and low O2 tolerant plants Chemical Environment – shallow w/ low O2 soil and H2O due to high rate of decomposition. Classified by dominant vegetation type: Marsh – soft emergent vegetation Swamp – woody emergent vegetation Bog – moss, peat deposits Marshes Swamps Bog 41 Aquatic Biomes Marine Freshwater Estuaries Physical Environment - Transition btwn river and ocean - At rising tide seawater flows into river. At falling tide river water flows out Chemical Environment - Salinity and nutrients level varies throughout the estuary and with tides - Overall high nutrient level increases 1o productivity 42 Aquatic Biomes Marine Know the names of the zones in lakes and marine biomes Can differentiate zones based on: • Light penetration (photic/ aphotic) • Distance from shore/ H2O depth (intertidal/ neri...
View Full Document

This note was uploaded on 02/12/2014 for the course BIOLOGY 2011 taught by Professor Woo during the Fall '10 term at University of Central Florida.

Ask a homework question - tutors are online