What Happens in the Freshwaters
The Amazing World of Freshwaters
The Freshwater Biome
What Lives There and Their Adaptions
Adaptations: Water lilies have stomata that are open most of the time, because water is in good capacity so there is no need for it to be in the plant. In result guard cells on the plant are genrally inactive. They also have an increased number of stomata.
They have flat leafs and air holes to help with flotation. They also have specialized roots to take in oxygen.
Human Uses: Mashed roots are often used cure mouth sores.
Adaptations: Phytoplankton do not require true leaves, stems, or roots like most plants. This is because they absorb water and nutrients directly from the environment. Phytoplankton have developed many pores, spines, and other projections that increase surface area, absorb nutrients, and increase exposure of sunlight for photosynthesis.
In wetlands such as ditches, swamps, marshes, and bogs, the water is saturated throughout the year. This means the dirt holds in as much water as possible, and creates mud. Common plants are cattails, and duckweed. Some trees include cypress, black spruce, and tamarack.
It is harder for lakes and ponds to support large communities of vegetation because of their great depth. The plants found here normally consist of grasses, and weeds. Sometimes plants like cattails, and lily pads can be found floating in shallow lakes and ponds.
Seaweed: Seaweed is used in many cosmetics, skin care products, human food, and drugs.
Algae: Algae is used as a energy source, fertilizer, nutrients and a method of pollution control.
River Dolphin Adaptations
2. The Inia has no dorsal fin, only a dorsal ridge. This ride, along with larger flippers, are an adaptation used for swimming and living in shallow river waters.
3. The Amazon River Dolphin has stiff hairs on its beak. These hairs are a sensory organ that help the Inia sense pray in muddy rivers.
River Otter Adaptations
2. The river otter is able to locate food in muddy with it's facial whiskers that are are very sensitive to touch.
3. The otter has many features which make it a great swimmer, some of these include; ears an nose close when it goes underwater, it's eyes are located near the top of it's head so it can see above the surface while it is swimming nearly submerged, the river otter has short legs with five webbed toes on each foot, the otter has tightly packed underfur, and it's long guard hairs are water-repellent .
VIDEO OF A ANGRY OTTER
Fish Adaptions to Freshwater
The mouth there is :
- TERMINAL (at the end of snout) - Helps feeds throughout the water.
- The VENTRAL (under the head) - Helps feeds off the bottom.
- Also STRONG JAWS and WELL DEVELOPED TEETH - Helps the fish feed on other fish.
- LARGE EYES -Feeds by sight.
- SMALL EYES - Mostly feeds off the bottom and relies on barbels to detect food
If the fish has:
- LARGE SCALES - Is used for protection and speed not needed for catching preys.
- SMALL SCALES - Means the fish is more streamlined and is fast moving to catch a prey.
The Fish Form
If a fish is:
FAIRLY UNIFORM, or NO MARKINGS - Means it swims in open water.
STRIPES - Hides in weeds for protection.
MOLTED - Hides in rocks or on the bottom.
DARK ON TOP -Less visible to predators above it.
LIGHT COLORED BELLY - Less visible to predators below it.
FRESHWATER BIOME SONG
Music By: Phil Philips