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40 Cards in this Set
- Front
- Back
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They rely on the external environments temperature |
Ectothermic |
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Smallest fish |
Mistichthys luzonensis |
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Largest fish |
Rhinodontypus |
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They are classified into 2 groups |
Cartilaginous and bony |
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Examples of lower teloest |
Carp Salmon Catfish |
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Examples of higher teloest |
Perch Sticklebacks Mackerel |
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Shape of fish |
Fusiform |
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Muscle blocks that are arranged on either side of the axial skeleton |
Myomeres |
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Describe the cranium |
Rigid and articulates with bones of jaw and opercula apparatus |
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Enables the fish to maneuver and remain stable in the water |
Fins |
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Types of fins |
Dorsal Pectoral Pelvic Anal Caudal |
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Provides an indication f the fish's swimming pattern |
Caudal or tain fin |
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Fish can swim fast continuously |
Forked tail |
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Slow movement with fast dashes |
Truncated tail |
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Function of mucus in the skin |
Bactericidal and fungicidal |
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Mucus layer in the skin is called |
Glycocalyx or cuticle |
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Damage to the mucus covering may cause |
Skin infection and ulcer formation |
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Describe scales |
Flexible, Bony plates, Overlapping roof tiles |
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Whiskers pf catfish are called |
Barbels |
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A series of shallow channels that run over the surface of the body along the midline |
Lateral line system |
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Gill system invloves |
Five lateral gill slits on each side of pharyngeal wall |
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Fine secondary filaments that projects from the gill filament |
Lamellae |
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Elongated projection at the point where gill slits open |
Gill rakers |
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Protective flaps on each side of the fish |
Operculum |
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How many chambers of the heart |
2 Atrium and ventricle |
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Describe fish circulation |
Single since blood passes through the heart once per circulation |
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Have teeth on the front jaw |
Predetory fish |
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Prevents food from exiting through the opercula |
Gill rakers |
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Shape of stomach |
Tube like |
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Form of intestine |
Simple tube with uniform diameter |
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Describe kidneys |
Located on the ventral side of spine Act as osmoregulator |
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Difference of fresh water and salr water |
Fresh water will secret large volume of diluted urine to avoid the fish to burst. Salt water excretes small amount of concentrated urine |
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Male sperm cell |
Milt |
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This is called spawning |
External fertilization |
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A modified anal fin that is the copulatory organ of male fishes |
Gonapodium |
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A gas filled cavity below the vertebral column |
Swim bladder |
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Swim bladder of lower teloest |
Physostomous |
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Linked via a pneumatic duct of foregut |
Physostomous |
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Swim bladder of higher teloest. No connection between foregut and swim bladder |
Physoclistous |
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Gas inside the swim bladder |
Carbon dioxide |
