'Anal fins' presentation slideshows

Market Forms of Fresh Fish

Market Forms of Fresh Fish. Whole: the fish is literally untouched, without anything removed Drawn: viscera/entrails/gut have been removed and stomach cavity cleaned Dressed: gut, all fins, and scales are removed; sometimes head and tail also

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External Anatomy of Fish

1.57k views • 27 slides

CHAPTER

20. CHAPTER. Fish. History of Fish. Earliest evidence: Fossils from Ordovician period (425 to 500 million years ago) Slow bottom dwellers with thick, bony plates/scales; poorly developed fins; no jaws (Ostracoderms) Became extinct ~250 million years ago From Ostracoderms evolved two groups

361 views • 24 slides

Family Gadidae

Family Gadidae. Cods Commercially important species: Atlantic Cod ( Gadus morhua ) Pollock ( Pollachius virens ) Haddock ( Melanogrammus aeglefinus ). Melanogrammus aeglefinus. Family Gadidae. Local species Southern Hake ( Urophycis floridana ) Spotted Hake ( Urophycis regia ).

283 views • 19 slides

Lamnidae

Lamnidae. Greek: lamna = shark. Diagnostic Features. Head long but shorter than trunk Snout long, pointed, conical Eyes moderately large Large mouth Gill openings extending to surface of head First dorsal high, large, erect Second dorsal and anal fins tiny Pectorals large and narrow

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Aphredoderidae (pirateperch)

Aphredoderidae (pirateperch). Noel Burkhead. Large head, mouth Mouth epiterminal Dorsal, anal fins with spines Vertical stripe below eye Anus anterior to usual position (often jugular). pirateperch ( Aphredoderus sayanus ) ). Aphredoderidae. Noel Burkhead. Family consists of 1 species

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Aphredoderidae (pirateperch)

Aphredoderidae (pirateperch). Noel Burkhead. Large head, mouth Mouth epiterminal Dorsal, anal fins with spines Vertical stripe below eye Anus anterior to usual position (often jugular). pirateperch ( Aphredoderus sayanus ) ). Aphredoderidae. Noel Burkhead. Family consists of 1 species

105 views • 10 slides

Perch dissection

Perch dissection. Locate major external anatomical parts: Dorsal Fin Posterior Dorsal Pectoral Fins Pelvic Fins Anal Fins Caudal Fin Gill Covers (operculum) Lateral line - sensory organ of fish. Dissection. Remove operculum with scissors Observe gill anatomy

356 views • 6 slides