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Osteichthyes (Bony Fish). By: Drew Massner & Austin Frank. Taxonomic Classification. Domain: Eukarya Kingdom: Animalia Phylum: Chordata Class: Osteichthyes Sockeye Salmon (Oncorhynchus nerka). Key Characteristics. They have a skeleton made at least partially of bone.
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Osteichthyes (Bony Fish) By: Drew Massner & Austin Frank
Taxonomic Classification Domain: Eukarya Kingdom: Animalia Phylum: Chordata Class: Osteichthyes Sockeye Salmon (Oncorhynchus nerka)
Key Characteristics • They have a skeleton made at least partially of bone. • They have cycloid scales, which are thin, flexible, and overlapping. • Bony fish have plates and tissue called operculum that protect the gills. • Many bony fishes have a swim bladder which is a gas-filled sac above its stomach. it lets the fish adjust it buoyancy to keep from sinking or rising
Adaptations • Body shape: • Some such as tunas and marlins are streamlined for fast swimming • Some have laterally compressed bodies that allow them to swim easily around coral reefs or kelp beds, but also allow them to have quick bursts of speed to capture food or flee from predators. • Pipefishes are camouflaged because they look like the eelgrass they live around • Coloration: • Color can show that a fish is dangerous, poisonous, or taste bad • Some colors blend with the environment
Habitat Needs • Bony fishes can live in fresh water, sea water, and brackis environments. • They live in almost all aquatic habitats. Different species of fish have adapted for different habitats: rocky shores, coral reefs, kelp forests, rivers and streams, lakes and ponds, under sea ice, the deep sea, and other environments of fresh, salt, and brackish water. • Bony fish can live at various temperatures, depending on the species. Some live at extreme temperatures, from 28°F to 113°F.
Reproduction • There are some that reproduce asexually, but the majority reproduce sexually. • Also, most are oviparous, which means they lay eggs. • Although there is usually no parental care after birth, before birth parents may scatter, hide, guard or brood eggs • Before birth, parents may scatter, hide, or guard eggs but they usually don’t take care of them after they’re born.
Interesting Facts • Unlike most other fish, bony fish can see in color. • The ocean sunfish is the largest bony fish in the world, and the longest is the king of herrings. • Only bony fish can swim in highly coordinated groups. • There are 29,000 species of bony fish which make up the vast majority of fish. • It is the largest class of invertebrates in existence today.
Sources Marine Science Textbook http://www.seaworld.org/animal-info/info-books/bony-fish/index.htm http://zipcodezoo.com/Key/Animalia/Osteichthyes_Class.asp