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Aquatic Biomes shorter

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by

Erin Patel

on 2 May 2018

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Transcript of Aquatic Biomes shorter

Saltwater Biomes
Freshwater biomes
Aquatic Biomes
Wetlands = Freshwater
Coastal Wetlands = Saltwater
Notes
Can be strongly impacted by the tides
In the photic Zone
Very strong water movement
Adaptations?
Shallow/Intertidal
Open Ocean
Deep Ocean
Seastars
{Animals}
Clams, Mussels and Oysters
From South America
Largest rodent in the world
Very social (<100 individuals in a group)
Becoming popular in the pet trade!
Capybara
Woodstork
Axolotl-
"Mexican Salamander"
Factors that Shape them
No salt = 0 salinity
pH= around 7 (neutral)
Can be turbid ("dirty") or clear
Standing or Running Water
Can be very deep to very shallow
Light- both photic and disphotic (rarely aphotic)
Ponds/Lakes
Piranha
From Southeast Asia
Over 6 feet across
and 1,500 lbs
Only found in freshwater, because the salt is too conductive and would cause them to shock themselves
Found in South America
Have an organ that produces low and high voltage electricity
Not deadly to adult humans but very painful
Electric Eel
Giant Freshwater Stingray
Archer Fish
Florida Soft shell Turtle
Extremely fast moving!
Rivers/Creeks
Gills on outside
Never moves to land
Can Spit water and knock an insect out of tree with pinpoint accuracy
From Australia
From South America
Omnivorous
Known to be aggressive but actually very timid and only school for protection against predators
Turn off Volume while watching this video
Woodstork will not reproduce unless they have enough resources
Their population is endangered because of their limited resources
Have free swimming larval (baby) stages where they smell for the scent given off by the adults of their populations, this helps them know where to settle
Estuaries
Factors that shape them:
Salinity?
pH?
Turbidity?
Water flow?
Water depth?
Light?
Examples of estuary bodies?
Sawfish
Use "saw" to hunt- will stun or impale prey with "teeth"
Can also use "saw" to dig up buried food and to defend themselves
Species is critically endangered
Manatees
Animal appears fat, slow and clumsy but they actually are mostly made of muscle, with very little fat (which is why they need the warm florida waters)
They are incredibly strong and very agile and graceful in the water
It is believed that when sailors first saw manatees in the water they believed they were looking at mermaids!
Bull Shark
Factors that shape these environments:
2 most important abiotic factors:
1. Dissolved Oxygen
2. Sunlight

a. Photic Zone
In sunlight
Photosynthesis
High density of animals

b. Aphotic Zone
No light (below 200 m (656 ft)
Chemosynthesis for food or drift down- "marine snow"
Toadstool coral
Coral is an animal, not a plant
Most coral can't move but this one can!
If it doesn't like where it's living (too crowded, not enough light, stinging neighbors) it can move away
Takes a few weeks to move 6 inches and it will leave bits of its body behind, which will sprout into new coral!
Coral Turf War, time lapse video
When seastars eat they don't take food into their mouth, which is underneath them, they open their mouth, push their stomach out of their mouth and dissolve the food outside of their body!
Frogfish
Frogfish are ambush predators
They're experts at camouflage and fishing
They're called anglerfish, they use a lure to catch their prey!

Seahorse
female- hard belly
male- soft belly
Seahorses mate for life
Females are dominant
Males carry and deliver the babies after female implants eggs into his pouch
Notes:
In the photic and aphotic zones
Very few defining features
Very little habitat except what floats at the surface
Adaptations to live here?
{Animals}
Hammerhead Shark
Abnormal shape to their heads gives them 360 vision, perfect for a predator in the middle of the ocean that must see prey in any direction!
Amazing navigators, can swim the exact same path in the middle of the ocean, over and over again because they use the geomagnetic field from the earth as their map
Ocean Sunfish
Mola Mola
Notes:
0 light from the sun
Aphotic and Abyssal
Animals very spread out, not easy to find
Greatest Salinity
Coldest Temperatures
High pressure
Adaptations?
Watch 1 or both!
Hydrothermal Vents
Factors that Shape them:
Salinity?
pH?
Turbidity?
Water flow?
Water depth?
Light?
Examples of freshwater bodies?

Freshwater
Factors that Shape them
Some salt = 1-30 salinity ("brackish")
pH= around 7.5
Can be turbid ("dirty") or clear
Slow Running Water
Typically shallow
Light- typically photic, unless too turbid, then disphotic
Factors that Shape them:
Salinity?
pH?
Turbidity?
Water flow?
Water depth?
Light?
Examples of freshwater bodies?
Factors that Shape them
Salty = 35 salinity
pH= around 8.2
Can be turbid ("dirty") or clear
Open ocean- slow currents
By the coast- faster currents & waves
Very deep (36,000 deepest known)
Light- both photic, disphotic, and aphotic
Adaptations to live in Intertidal
Changing temperature

Force of water moving in and out

Animal Examples?
Adaptations to live in open ocean

Ability to navigate

Swim long distances

Examples?
Adaptations to live in Deep Ocean
No light: chemosyntheisis
animals must make their own light= bioluminescence
Big mouths to have a better chance at success when feeding
Extreme pressure
Cold temperatures
Complete darkness
Full transcript