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Family Gadidae

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Family Gadidae Cods Commercially important species: Atlantic Cod (Gadus morhua) Pollock (Pollachius virens) Haddock (Melanogrammus aeglefinus) Melanogrammus aeglefinus – PowerPoint PPT presentation

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Title: Family Gadidae


1
Family Gadidae
  • Cods
  • Commercially important species
  • Atlantic Cod (Gadus morhua)
  • Pollock (Pollachius virens)
  • Haddock (Melanogrammus aeglefinus)

Melanogrammus aeglefinus
2
Family Gadidae
  • Local species
  • Southern Hake (Urophycis floridana)
  • Spotted Hake (Urophycis regia)

Urophycis floridana
3
Gadidae Characteristics
  • Bottom oriented marine fishes that play an
    integral ecological role in their communities
  • Long dorsal and anal fins
  • Cods have 3 sections of the dorsal fin and 2
    sections of the anal fin
  • Hakes have 2 sections of the dorsal fin and 1
    section of the anal fin

4
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5
Atlantic Cod
  • Important because of size and ease of capture
  • The fishery has collapsed on both the Grand and
    Georges Bank

Gadus morhua
6
Family Ophidiidae
  • Cusk-Eels
  • Local Species Blotched Cusk-Eel (Ophidion grayi)

7
Ophidiidae Characteristics
  • Dorsal and anal fins are continuous, with
    modified pelvic fins as barbels on the jaw
  • Range in habitats from tide pools to the deepest
    parts of the worlds oceans

8
Pearlfishes
  • Related family Pearlfishes (Carapidae)
  • Closely associated with several marine
    invertebrates.
  • Relationships range from commensal - parasitic

9
Pearlfishes
10
Family Exocoetidae
  • Flyingfishes
  • Margined Flyingfish (Cypselurus cyanopterus)
  • Halfbeaks
  • Ballyhoo (Hemiramphus brasiliensis)
  • Halfbeak (Hyporhamphus unifasciatus)

Cypselurus cyanopterus
11
Exocoetidae Characteristics
  • Single dorsal and anal fins located close to the
    caudal fin
  • Well-developed lateral line located near the
    ventral surface
  • Coastal and oceanic, tropical and subtropical
    waters

12
Exocoetidae Larvae
Fahay
13
Flyingfishes
  • Long pectoral fin used for gliding after they
    jump from the water
  • Lower lobe on caudal fin increases glide distance
    by sculling in the water

14
Halfbeaks
  • Elongated lower jaw
  • Used as funnel for directing plankton into the
    mouth
  • Popular bait fish for sportsmen

Ballyhoo
15
Family Belonidae
  • Needlefishes
  • Species
  • Houndfish (Tylosurus crocodilus)
  • Atlantic Needlefish (Strongylura marina)

Strongylura marina
16
Belonidae Characteristics
  • Prey on small fish with long jaws and
    well-developed teeth
  • Fast pelagic spp have a habit of skipping on the
    surface
  • Houndfish is the largest 5ft. And 10 lbs.

17
Family Fundulidae
  • Killifishes
  • Common species
  • Mummichog (Fundulus heteroclitus)
  • Striped Killifish (Fundulus majalis)

Fundulus heteroclitus (male)
18
Fundulidae Characteristics
  • Found in waters that experience extreme changes
    in physical parameters
  • Schooling fish occur in bays and estuaries
  • Usually small lt 15 cm., omnivores
  • Most species are sexually dimorphic
  • Mummichog
  • Striped Killifish

19
Family Poeciliidae
  • Livebearers
  • Sailfin molly
  • Poecilia latipinna
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