Aquatic Biomes

1. Freshwater Ecosystem•Rivers and streams

2. Ocean zones•Marine Ecosystem

Rivers and Streams

How ?•Low lying areas collect runoff water•Streams drain into rivers•Area of drainage is a watershed•PA in Mississippi River watershed•Ohio River Watershed – Wash. County •15 watersheds in Wash. Co.

River / Stream Ecosystem

RIPARIAN BOUNDARY (trees)Pin OakElmSugar MapleSilver Maple

ALGAEGreen Algae (Spirogyra)DiatomsGold Algae

ANIMALSBirds (Great Blue Heron)Insects (mayfly, stonefly)Mammals (muskrat, raccoon)Fish (smallmouth bass, trout)Mollusks (fingernail clam, orb snail

Algae•Base of food web•Photosynthetic•Oxygen producer

Animals of Stream / River

Marine EcosystemsMarine Zones

PhoticAphoticIntertidalNeriticOceanicBenthicPelagicAbyssal

PhoticIntertidal / Neritic

AlgaeKelpRed Algae“Red Tide” – Gonyaulaux

cantonellaAnimals

Sponges RaysCoral UrchinAnemone ShrimpCrabs Green sea

turtleClown fish JellyfishSea star Blue Tang fishOctopus Stone fishSand / Nurse SharksClamsPuffer fish

Producers of the Ocean

60% atmospheric O2

Eco Issues in Aquatic BiomesFRESHWATER

•Acid Mine Drainage•Pollution•Nutrient Contamination

(fertilizers cause algae bloom)

Eco Issues in Aquatic Biomes

MARINE•Pollution•Red tide•Trawling