Envirothon Team Aquatics

Define: Biota

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Define: Substate

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Define: Thermocline

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Mayflies & stoneflies are considered indicators of water quality because they:

• are tolerant of most types of pollution

• require a high DO content in the water

• can immediately change to a terrestrial form when an incident of pollution occurs

• can withstand any change in pH

List 3 ways that increased impervious surfaces of urban areas threaten aquatic resources.

Answer explanation

-Rainwater gets prevented from recharging ground water supply.

-Stormwater runs off in higher amounts & velocity, which erode stream banks

-More pollution is washed into waterways

-Summer storm waters fall on hot surfaces and wash into stream causing thermal shock to fish

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

Define: Eutrophication

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles.

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Tags

NGSS.MS-LS2-4

Which creek invertebrate LARVAE is pictured?

• Dobsonfly

• Water Penny

• Stone Fly

This invasive species can survive on land for about 7 days.

• Zebra mussel

• Lionfish

• Red-Eared Slider

• Grass Carp

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

This freshwater crustacean is related to the lobster.

• Crayfish

• Crawfish

• Crawdads

• Crab

Tags

NGSS.MS-LS4-2

What is the primary role of riparian buffers in aquatic ecosystems?

• A) To increase water temperature

• B) To filter pollutants and provide habitat

• C) To decrease biodiversity

• D) To promote soil erosion

Tags

NGSS.MS-LS2-5