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Canadian Waters

Embark on a coast-to-coast journey through freshwater wilds, local fisheries, and kelp forests, meeting more than 80 aquatic species, like sturgeon and the giant Pacific octopus, along the way!

What Will You Discover? 

Embrace Canada's treasure trove of underwater habitats — from the Great Lakes to our three ocean coasts — and meet the extraordinary alewives, sea urchins, velvety red anemones, lobsters, and a giant Pacific octopus that this country calls home.

White-spotted Rose Anemone White-spotted Rose Anemone

White-spotted Rose Anemone

The white spotted rose anemone is often found on rocks and pilings, favoring exposed habitats with fast moving water. Anemones use stinging cells in their tentacles, called nematocysts, to capture prey which will then be engulfed by the central mouth.

Size

Up to 6 inches

Diet

Crustaceans, mollusks, fish

Range

North Atlantic Ocean, possibly northeast Pacific Ocean but may be distinct species

Did You Know?

A growing number of anemone larvae in this region are chimeric. This is where two embryos have fused to form one individual larvae. Scientists think that these fused offspring might be better able to defend themselves or grow faster. The extra genes may help them cope with changing environments.

Red King Crab Red King Crab

Red King Crab

Though the red king crab is the largest species of king crab, this impressive species starts life as a tiny floating larvae. After 2-3 months, the larvae settle on the bottom of the ocean, still smaller than a dime. Juvenile red king crab are very susceptible to predators, especially after molting, so they will gather in large groups, or pods, of up to 500,000 individuals for protection. At around four years old, crabs tend to leave the pod and head to deeper water, preferring areas of soft substrate like sand or mud.

Range

Northern Pacific Ocean

Size

Legspan up to 60 inches

Diet

Fish, mollusks, worms, crustaceans, algae, echinoderms

Did You Know?

Adult red king crabs make annual migrations from shallow water to deep water and back, sometimes covering a distance of 100 miles round-trip!

Pacific Spotted Shrimp Pacific Spotted Shrimp

Pacific Spotted Shrimp

Pacific spotted shrimp spend their days in deeper ocean waters, but at sundown, migrate closer to the surface to mate and find prey, returning to the depths for safety when the sun rises.

Size

Up to 10 inches

Range

Northeast Pacific Ocean

Habitat

Deep rocky or sandy bottom areas

Diet

Worms, carcasses, mollusks, sponges

Did You Know?

All Pacific spotted shrimp are males during the first few years of life before eventually changing to female.

Giant Pacific Octopus Giant Pacific Octopus

Giant Pacific Octopus

The giant Pacific octopus can be found as deep as 3,000 feet or more, though they prefer to inhabit shallow water caves, often near kelp forests. Unlike many smaller octopuses that may only live a year, the giant Pacific octopus typically lives 3-5 years, not mating until the end of its life.

Size

Armspan up to 20 feet

Range

Northern Pacific Ocean

Diet

Crustaceans, mollusks, fish

Did You Know?

Octopuses have a much larger nervous system than any other invertebrate, about 500 million neurons, about the same amount as a dog. Most of these neurons are located in their arms, nearly twice as many as in the central brain, which provides them not only a sense of touch but also the capacity to sense chemicals analogous to smell or taste.

American Lobster American Lobster

American Lobster

American lobsters thrive in cold waters where there are many rocks and other places to hide from predators. They mainly prefer shallow water but are also found as deep as 1,500 feet.

Habitat

Rocky areas

Size

Up to 25 inches

Range

Atlantic coast of North America

Diet

Opportunistic scavenger; mollusks, crustaceans, fish, worms, algae

Did You Know?

The American lobster has been recorded as weighing as much as 44 pounds, making it not only the heaviest crustacean in the world, but also the heaviest of all living arthropod species!

Lumpfish Lumpfish

Lumpfish

Juvenile lumpfish cling to seaweed in shallow nearshore waters. As they grow older, they tend to move further from shore, spending more time in colder waters on the rocky seafloor.

Size

Up to 24 inches

Range

North Atlantic Ocean

Diet

Fish, jellies, crustaceans, worms

Did You Know?

With lumpy, gelatinous skin, a balloon-shaped body, and lack of a swim bladder, the lumpfish is an awkward oddity that would never be accused of being a graceful swimmer. The secret to their success lies in modified ventral fins that function like suction cups, anchoring them tightly to the substrate. This and their body shape are why these fish are sometimes called lumpsuckers.

Giant Acorn Barnacle Giant Acorn Barnacle

Giant Acorn Barnacle

The largest barnacle species in the world, the giant acorn barnacle starts life as a tiny floating larva that eventually attaches itself to a hard substrate and metamorphoses, or transforms, into a baby barnacle. To attach itself, the barnacle creates a glue that is so strong it's almost indestructible; not even acid can dissolve it! This glue will continue to hold the barnacle shell long after the barnacle inside is dead.

Size

Up to 12 inches

Diet

Plankton, detritus

Range

Northeast Pacific Ocean

Did You Know?

Related to crustaceans like shrimp rather than mollusks like oysters, giant acorn barnacles have the largest muscle fibers in the animal kingdom - about 25 times thicker than the average human hair!

Lake Sturgeon Lake Sturgeon

Lake Sturgeon

Lake sturgeons are primitive-looking fish with unique skeletons composed of cartilage and bone. They have taste buds outside their mouths, which they use to sense prey items on the bottom. Lacking teeth, they extend their rubbery lips to vacuum up food and swallow it whole.

Conservation Status

Endangered

Size

Up to 108 inches

Range

Freshwater of North America

Diet

Insects, worms, crustaceans, fish, snails

Did You Know?

The unfertilized eggs carried inside female sturgeon are considered a delicacy known as caviar. The high demand for this luxurious treat in the late 1800s led to so much unregulated overfishing that lake sturgeon populations collapsed by 1900 and have yet to recover. During this period, over 5 million pounds of sturgeon were harvested from Lake Erie alone!

Bowfin Bowfin

Bowfin

Bowfin are ancient air-breathing fish that often go to the surface to gulp air. This allows them to survive in stagnant water with low levels of oxygen. If their pond evaporates, they can even bury themselves in mud and survive for an extended period until the next rain allows them to swim free. There have been reports of bowfin surviving for 21 days buried in the mud of a drained pond!

Size

Up to 43 inches

Range

Freshwater of North America

Diet

Fish, insects, crustaceans, amphibians

Did You Know?

There are two species of bowfin alive today which are the last remaining members of a family that dates back to the Jurassic period. These fish are windows into the ancient past.

American Eel American Eel

American Eel

The American eel lives most of its life in freshwater, usually in larger rivers or lakes near the coast, primarily swimming near the bottom in search of food. They prefer to hunt at night and typically hide during the day, often burying themselves in the substrate. Once fully mature, which may take 20 years, the eel will migrate downstream, eventually reaching the Sargasso Sea to spawn, after which they die. Baby eels return to the rivers and streams of their parents, and the cycle begins again.

Conservation Status

Endangered

Size

Up to 60 inches

Diet

Worms, fish, mollusks, crustaceans, insects

Range

Greenland, Iceland, east coast of North America to northeast South America

Did You Know?

Neither adult eels or eggs have ever been documented in the Sargasso Sea during spawning, though newly hatched eels are found there. Presumably, spawning occurs in deep water, and the adults die shortly after, leaving no trace but their offspring.

Muskellunge Muskellunge

Muskellunge

Typically found in clear water lakes, alone or in small groups, muskellunge are the apex predator of their ecosystem. They are aggressive hunters that will even pursue prey half their own size! These fish have a well defined home range they seldom venture beyond, often repeating the same routine daily.

Size

Up to 72 inches

Range

Freshwater of North America

Diet

Fish, small mammals, ducklings, amphibians, insects

Did You Know?

Muskies, as they are often called, are highly prized game fish, generating millions of dollars per year in revenue for local economies from sport fishermen by way of hotels, restaurants, and other associated businesses.

Bluegill Bluegill

Bluegill

Most active during the day, bluegill can typically be found in shallow water areas with lots of aquatic plants, fallen trees, or other structures for them to hide. Male bluegills make nests in colonies with dozens of other males in shallow water. The nests are circular depressions in the substrate about one foot wide, from which they have painstakingly removed all debris. Once a male has attracted one or more females to his nest and spawning is complete, he will protect the eggs and newly hatched fry for about a week before the fry leave the nest.

Size

Up to 16 inches

Range

Freshwater of North America

Diet

Snails, insects, crustaceans, worms, small fish

Did You Know?

Bluegills use special cells in their skin called melanophores to rapidly change color. When threatened, they will display 5-9 vertical bars along both sides of their body that fade away when the coast is clear.

Largemouth Bass Largemouth Bass

Largemouth Bass

During the day, largemouth bass of often found resting under lily pads, near fallen trees or in weed beds, typically preferring to hunt for food in the evening. Juveniles form schools with similarly-sized fish, while adults are usually solitary and do not interact with each other. Bass generally stay within a relatively small home range, about the size of 5 city blocks.

Size

Up to 29 inches

Diet

Fish, crustaceans, insects, amphibians

Range

Freshwater of Eastern USA and Southern Ontario

Did You Know?

America’s 30 million bass anglers are the basis of a $60 billion industry.

Red-Bellied Piranha Red-Bellied Piranha

Red-Bellied Piranha

Found throughout the Amazon River basin, red-bellied piranha tend to travel in large schools. Despite their fearsome reputation, piranha are primarily omnivorous and rarely bite animals larger than themselves.

Size

Up to 12 inches

Range

Amazon River basin

Habitat

Rivers and streams

Diet

Fish, fins, and scales, insects, mollusks, fruit

Did You Know?

Along with close relatives like pacu, red-bellied piranha have a highly evolved sense of hearing; they can also produce barking sounds using sonic muscles attached to their swim bladder!

Purple Sea Urchin Purple Sea Urchin

Purple Sea Urchin

Purple sea urchins can sometimes be found in large groups, especially around the bases of giant kelp. They eat through the stems of the kelp, which can be devastating to both the forest and the species that rely it as a home.

Diet

Algae

Size

Up to 4 inches

Range

Eastern Pacific Ocean

Did You Know?

Located on the underside of their body, or test, an urchin's mouth consists of a strong jaw apparatus called Aristotle's lantern, consisting of five bony teeth that are instrumental in scraping algae off the substrate.

Bat Star Bat Star

Bat Star

Typically found on rocks, sand bottoms, and among surf grass, bat stars come in a wide variety of colors, either mottled or solid. They can also be found with five to nine arms, with the center disk of the animal being much wider than the stubby arms are in length.

Size

Up to 8 inches

Range

Eastern Pacific

Diet

Scavenger, eats a variety or either slow moving or dead plants and animals

Did You Know?

Bat stars have eyespots at the end of each arm that can detect light and use sensors on its tube feet to sense prey.

What's Inside

Exhibits Nearby

Canadian Waters

Embark on a coast-to-coast journey through freshwater wilds, local fisheries, and kelp forests, meeting more than 80 aquatic species, like sturgeon and the giant Pacific octopus, along the way!

Swirling Pinstripe backdrop

Woah! The Aquarium sounds like alotl fun! But what are you doing all the way down here with the axolotls – some of the most secretive salamanders in the world?!

Did you know out of more than 800 salamander species that exist, only about 22 can be found in Canada?