Freshwater decomposers are mostly bacteria and are typically found at the bottom of lakes, ponds, or rivers. Mildew: type of bacteria found in or near water. Trumpet snail: this type of snail is a scavenger sometimes considered a pest. Water mold: type of bacteria found in freshwater or wet soil.
What are some herbivores in a river?
Herbivores: Ducks, geese, small fish, zooplankton, tadpoles, mayfly nymphs, small crustaceans.
What does kelp feed on?
In kelp forests, the most commonly found invertebrates are bristle worms, scud, prawn, snails, and brittle stars. These animals feed on the holdfasts that keep kelp anchored to the bottom of the ocean and algae that are abundant in kelp forests.
What is the name of the algae that serves as the logo for the monterey bay aquarium?
The logo of the Monterey Bay Aquarium represents the tip of a growing giant kelp. It’s the world’s largest species of marine algae.
What looks like a beaver but isn t?
No, it’s a capybara, the largest rodent in the world! Standing 2 feet (60 centimeters) tall at the shoulder and built somewhat like a barrel with legs, the “capy” has long, light brown, shaggy hair, a face that looks like a beaver’s, no tail, and slightly webbed feet.
Which animals are decomposers?
Decomposers (fungi, bacteria, invertebrates such as worms and insects) have the ability to break down dead organisms into smaller particles and create new compounds. We use decomposers to restore the natural nutrient cycle through controlled composting.
Why is giant kelp not a plant?
Since the giant kelp is not a plant, it does not have roots. Instead, it obtains all of the necessary nutrients directly from the water and is attached to the rocky bottom by a structure known as a holdfast.
Are river otters nocturnal?
River otters can be seen at any time of day but are considered to be nocturnal, or most active at night. They are not social. A group may be comprised of a female and her young.
Are humans the only animal that cries?
Are human beings the only animals that produce tears when they cry? If you define crying as expressing emotion, such as grief or joy, then the answer is yes. Animals do create tears, but only to lubricate their eyes, says Bryan Amaral, senior curator of the Smithsonian’s National Zoo.
Do we have otters in wisconsin?
River otters are the largest member of the weasel family found in Wisconsin and can be seen statewide. Your best bet to see a river otter is near the water, but otters do move over vast expanses of dry land on occasion.
What do otters do to ponds?
Otters catch fish, spend a day or two in a pond and then move on. Small ponds without good fish structure or habitat make fish more vulnerable to predation — like trying to manage for rabbits without brush.
Are river otters aggressive?
With their sweet appearance and playful nature, it may seem impossible that otters are dangerous. However, otters can be aggressive when necessary. The animals sometimes even hunt snakes to supplement their usual diet of fish.
Are otters a protected species?
Conservation Status: Otters are strictly protected by the Wildlife and Countryside Act (1981) and cannot be killed, kept or sold (even stuffed specimens) except under licence. … Otters require clean rivers with an abundant, varied supply of food and plenty of bank-side vegetation offering secluded sites for their holts.
Are otters really vicious?
Otters might look soft and cuddly but remain dangerous wild animals. Otters have strong teeth and a powerful bite.
Do otters do damage?
Otter Nuisance Otters can cause damage to aquatic vegetation and fish. They love to eat fish and starfish from a fish hatchery or a fish culture facility.
How aggressive is an otter?
Though their tendency when confronted is to dive and flee, otters can be aggressive when defending their young or a food source from a perceived threat.
What does otter feel like?
Otter pelts feel smooth and soft to us, but if you look at otter hair with a microscope you can see that it’s covered in tiny, geometric barbs. The barbs help the hair mat together so tightly that the fur near the otter’s body is almost completely dry. And keeping the animals dry is key to keeping them warm.
What is the most common characteristics of an otter?
Most are small, with short ears and noses, elongated bodies, long tails, and soft, dense fur. There are 13 species in total, ranging from the small-clawed otter to the giant otter. Though most live in freshwater rivers, lakes, and wetlands, the sea otter and the smaller marine otter are found in the Pacific Ocean.
Are river otters mammals?
River otters breed from March to April and exhibit a reproductive strategy called “delayed implantation” that is common to members of the weasel family. This means the fertilized eggs remain dormant in the female’s uterus for 10–11 months after breeding. The fertilized eggs then implant in the uterine wall and begin normal development. The young are born two months after implantation occurs. A female otter produces one litter per year consisting of 1–6 kits, with an average litter size of 2–3 kits. Prior to giving birth, the female retreats to a den near a waterbody with adequate food, shelter and seclusion. Otters do not excavate their own den; instead they utilize abandoned beaver lodges, burrows of other animals and various natural cavities. These natal den sites are occasionally used by the female and her offspring at other times of the year. The young are born blind and toothless and have a silky black coat. They open their eyes at one month old and by three months old they are weaned and can leave the natal area to explore and hunt. Young otters grow quickly and become independent around 6 months old. The female and her offspring stay together for at least 7 to 8 months or until she prepares to give birth to her next litter.
Are otters mammals or marsupials?
Otters are carnivorous mammals in the subfamily Lutrinae. The 13 extant otter species are all semiaquatic, aquatic or marine, with diets based on fish and invertebrates. Lutrinae is a branch of the Mustelidae family, which also includes weasels, badgers, mink, and wolverines, among other animals.
Are otters related to minks?
The Mustelidae (/mʌˈstɛlɪdiː/; from Latin mustela, weasel) are a family of carnivorous mammals, including weasels, badgers, otters, ferrets, martens, minks and wolverines, among others.
Are river otters marsupials?
No, otters are not marsupials. Otters lack the development pouch used by marsupial mothers to protect their immature young until they are developed…
Are river otters social or solitary?
River otters tend to be solitary and fairly territorial. Avoidance is a very significant factor in river otter social behavior. River otters defend their territories by marking, scratching, and occasionally fighting. Male river otters ignore females and young through most of the year.
Can otters eat alligators?
What other big animals might an otter eat? Whatever they can catch and overpower. They are smart, agile, and strong predators. They do eat a lot of amphibians and fish, but they’ll also take out sizeable beavers, raccoons, plus snapping turtles, snakes, and small gators.
Does florida have river otters?
Habitat: This water-loving animal is found throughout Florida except the Keys. River otters usually prefer fresh water and can be found in rivers, creeks, lakes, ponds, and swamps. Otters live in burrows on the bank of the water body, often under tree roots.
How do river otters reproduce?
In some species, the male bites the female’s upper jaw or nose, in other species the male grasps the female by the scruff of the neck. Copulation takes place in the water, and lasts 10 to 30 minutes. When a male sea otter finds a receptive female, the two engage in playful and sometimes aggressive behavior.
Is a southwest river otter a mammal?
The mammals have thick, protective fur to help them keep warm while swimming in cold waters. They have short legs, webbed feet for faster swimming, and a long, narrow body and flattened head for streamlined movement in the water. A long, strong tail helps propels the otter through the water.