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The Nekton Birds, Reptiles, Mollusks. Phylum Class Order. Chordata Mammalia Cetacea Subphylum Mysticeti Vertebrata Odontoceti Carnivora Sirenia Aves Reptilia Pisces(superclass) Agnatha Chondrichthyes Osteichthyes Mollusca Cephalopoda. The Nekton

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Presentation Transcript
slide1

The Nekton

Birds, Reptiles, Mollusks

PhylumClassOrder

ChordataMammaliaCetacea

SubphylumMysticeti

VertebrataOdontoceti

Carnivora

Sirenia

Aves

Reptilia

Pisces(superclass)

Agnatha

Chondrichthyes

Osteichthyes

MolluscaCephalopoda

slide2

The Nekton

Birds, Reptiles, Mollusks

Only about 3% of ~8600 bird species are marine.

slide3

The Nekton

Birds, Reptiles, Mollusks

slide4

The Nekton

Birds, Reptiles, Mollusks

slide5

The Nekton

Birds, Reptiles, Mollusks

slide6

The Nekton

Birds, Reptiles, Mollusks

Green – 300lb; herbivore

Hawksbill – tropical; feed on sponges

Loggerhead – 150-400lb; crabs, mollusks

Leatherback – 2000lb; jellyfish

large

Kemp’s Ridley – most endangered

Olive Ridley – most abundant

Black – possible relative of green

Australian flatback

small

slide7

The Nekton

Birds, Reptiles, Mollusks

  • all sea turtles endangered
  • Kemp’s – 1947, 40,000 Rancho Nuevo, Mexico
  • -1992, <500
  • ~45,000/year incidental catch by US shrimp trawlers
  • 1994- TED’s required on all US shrimpers
slide8

The Nekton

Birds, Reptiles, Mollusks

slide9

The Nekton

Birds, Reptiles, Mollusks

PhylumClassOrder

ChordataMammaliaCetacea

SubphylumMysticeti

VertebrataOdontoceti

Carnivora

Sirenia

Aves

Reptilia

Pisces(superclass)

Agnatha

Chondrichthyes

Osteichthyes

MolluscaCephalopoda

slide10

The Nekton

Birds, Reptiles, Mollusks

slide11

The Nekton

Birds, Reptiles, Mollusks

slide12

The Nekton

Birds, Reptiles, Mollusks

Architeuthis (western Australia)

slide13

The Nekton

Birds, Reptiles, Mollusks

Sept. 28, 2005

slide14

The Nekton

Birds, Reptiles, Mollusks

PhylumClassOrder

ChordataMammaliaCetacea

SubphylumMysticeti

VertebrataOdontoceti

Carnivora

Sirenia

Aves

Reptilia

Pisces(superclass)

Agnatha

Chondrichthyes

Osteichthyes

MolluscaCephalopoda