All About Fish!

Flashcards covering key concepts, classifications, anatomy, and unique features of fish based on the lecture notes.

Eukarya

The domain that includes all eukaryotic organisms.

Chordata

The phylum that includes all vertebrates and some invertebrates.

Agnatha

A class of jawless fish including lampreys and hagfish.

Chondrichthyes

A class of jawed cartilaginous fish, such as sharks, skates, and rays.

Osteichthyes

A superclass that includes jawed bony fish.

Cloaca

A common opening for excretion and reproduction found in some animals, including fish.

Ammocoetes

The larval stage of lampreys that resembles a tadpole or worm.

Diadromous

Referring to fish that migrate between saltwater and freshwater for spawning.

Claspers

Modified pelvic fins in male Chondrichthyes used for reproduction.

Swim bladder

An internal gas-filled organ in bony fish that helps maintain buoyancy.

Cycloid scales

A type of fish scale that is smooth and rounded at the edges.

Placoid scales

Rough, tooth-like scales found on cartilaginous fish.

Myomeres

Segments of muscle tissue that form the body wall in fish.

Buoyancy

The ability of a fish to stay afloat and maintain its position in the water.

Invasive species

Organisms that are not native to a specific location and negatively impact the environment.

Laparotomy

A surgical procedure that may involve dissection for educational purposes.

Lactate

An organic acid produced during anaerobic respiration in fish.

Osmoregulation

The process by which fish maintain water and electrolyte balance.

Internal fertilization

A reproductive process in which the sperm fertilizes the egg inside the female's body.

External fertilization

A reproductive process in which the sperm fertilizes the eggs outside the female's body.