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MOUTH. MOUTH. MOUTH. Related to food source Superior (upturned) – surface feeders. Tarpon. MOUTH. Related to food source Superior (upturned) – surface feeders Terminal (end/ normal) - midwater. Tuna. MOUTH. Related to food source Superior (upturned) – surface feeders
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MOUTH MOUTH
MOUTH • Related to food source • Superior (upturned) – surface feeders Tarpon
MOUTH • Related to food source • Superior (upturned) – surface feeders • Terminal (end/ normal) - midwater Tuna
MOUTH • Related to food source • Superior (upturned) – surface feeders • Terminal (end/ normal) – midwater • Wide: predators • Narrow: ovmnivores
MOUTH • Related to food source • Superior (upturned) – surface feeders • Terminal (end/ normal) – mid-water • Inferior (underneath) – bottom feeders Sucker fish
MOUTH • Related to food source • Superior (upturned) – surface feeders • Terminal (end/ normal) – mid-water • Inferior (underneath) – bottom feeders • Suckers: rasping algae, plants or mud • Whiskers: feel and taste in muddy waters
FINS • Movement • Nest building • Spawing • Tactile organs
CAUDAL FIN MOUTH CAUDAL FIN MOUTH
CAUDAL FINS • Propulsion • Forked: regular, fast swimmers • Rounded: Quick action • Elongated: used for attracting mates
CAUDAL FIN MOUTH ANAL FIN CAUDAL FIN ANAL FIN MOUTH
ANAL FIN • Stabilization • Propulsion
CAUDAL FIN MOUTH ANAL FIN PELVIC FINS CAUDAL FIN ANAL FIN MOUTH PELVIC FINS
PELVIC FIN • Paired • Stabilization • Long: tactile organ
CAUDAL FIN MOUTH ANAL FIN PELVIC FINS PECTORAL FINS CAUDAL FIN ANAL FIN MOUTH PELVIC FINS PECTORAL FINS
PECTORAL FINS • Maneuvering • Some bottom dwellers: props or to walk
DORSAL FINS CAUDAL FIN MOUTH ANAL FIN PELVIC FINS PECTORAL FINS CAUDAL FIN DORSAL FINS ANAL FIN MOUTH PELVIC FINS PECTORAL FINS
DORSAL FINS • Balance • May have spines for protection • 2nd made of fatty tissue – function unknown
DORSAL FINS CAUDAL FIN MOUTH ANAL FIN LATERAL LINE PELVIC FINS PECTORAL FINS CAUDAL FIN DORSAL FINS LATERAL LINE ANAL FIN MOUTH PELVIC FINS PECTORAL FINS
LATERAL LINE • Detects vibrations • Senses water pressure