Ch 7 - Invertebrates

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Ch 7 - Invertebrates Powered By Docstoc
					Chapter 7 - Invertebrates
             Animals without
              backbones
The Domains of Life
Kingdom
Animalia
Kingdom Animalia
        Must eat
            (no photosynthesis)
Kingdom Animalia
           Multicellular
Kingdom Animalia
           No cell walls
Kingdom Animalia



Active
 movement
Kingdom Animalia
         Diverse in form
Kingdom Animalia
         Diverse in habitat
Kingdom Animalia
       Sexual reproduction
Kingdom Animalia

   Embryonic development
Kingdom Animalia

          Unique tissues
             Invertebrate




Vertebrate
A tour of the Animal Phyla…………..
Phylum
Placozoa
Phylum Rhombozoa
Phylum
Orthonectida
Phylum Monoblastozoa
Phylum Porifera
             *
Phylum Cnidaria

             *
Phylum
Ctenophora
         *
Phylum Platyhelminthes
          *
Phylum Nemertea

             *
Phylum Rotifera

            *
Phylum
 Gastrotricha
Phylum Kinorhycha
Phylum Nematoda
                  *
Phylum Nematomorpha
Phylum Priapula
Phylum Acanthocephala
Phylum Entoprocta
Phylum Gnathostomulida
Phylum Loricifera
Phylum
Micrognathozoa
Phylum
Cycliophora
Phylum Annelida
                  *
Phylum Sipuncula
Phylum
Echiura
Phylum Onychophora
Phylum
 Tardigrada
Phylum
 Arthropoda

     *
Phylum
 Mollusca
     *
Phylum Phoronida
Phylum Ectoprocta
Phylum Brachiopoda
Phylum Echinodermata

                       *
Phylum Chaetognatha
Phylum Hemichordata
Phylum Chordata
                  *
Marine Invertebrates
Sponges
(Phylum Porifera)
Sponges
                   Two California
                     intertidal species

                     Ophlitaspongia pennata



Leucandra heathi
Sponges
Sponge
 Anatomy
Sponge
 Anatomy
Water Flow
 in Sponges
Spicules
Sponge form and skeletons
Jellyfishes, corals, etc.
(Phylum Cnidaria)
Phylum Cnidaria:
 anatomy
Phylum Cnidaria:
 anatomy
Class Hydrozoa
      Garveia annulata




                         Tubularia marina
Class Hydrozoa
      Hydractina milleri




                       Aglaophenia latirostris
Class Hydrozoa
             Plumularia setacea




     Lafoea dumosa
Class Hydrozoa

     Velella velella
Hyrodozoan life cycle
Obelia dichotoma
 polyp and medusa
Class Hydrozoa
(Siphonophore)

Portuguese man-of-war
  (Physalia)
Class Hydrozoa


   Hydra
Class Scyphozoa
                 Haliclystus auricula




     Aurelia aurita
Class Scyphozoa
              Chrysaora melanaster




       Cyanea capillata
Class Anthozoa

                      Anthopleura
                       xanthogrammica




   Metridium senile
Class Anthozoa
  Anthopleura
   elegantissima
Class Anthozoa

                         Tealia lofotensis




    Epiactis prolifera
Class Anthozoa
    Corals
Class Anthozoa
                            Corals
                         California species



   Astrangia
    lajollaensis


         Balanophyllia
          elegans
Class Anthozoa


  Corals
Phylum Cnidaria
 Behavior and
   symbioses
Comb jellies




Phylum Ctenophora
Comb jellies
            Comb
             jellies



Pleurobranchia bachei
Symmetry
           Bilateral




Radial
Flatworms




      Phylum Platyhelminthes
Flatworms
              planaria


Free-living
  flatworms
  Flatworms
                                       Notoplana acticola


Alloioplana californica




                   Kaburakia excelsa
Flatworms
Flatworms




            Internal
             parasites
Flatworms   tapeworms




scolex
            Worm body
Ribbon worms
Phylum Nemertea
Ribbon worms




               Amphiporus bimaculatus
               Ribbon worms


                    Micrura verrilli


Emplectonema
  gracile
Roundworms
        Phylum Nematoda
 Rotifers




Phylum Rotifera
Segmented worms
Phylum Annelida

     Phylum Annelida
      Segmented worms
Segmented worms
Segmented worms
Segmented worms
            Class Polychaeta
Segmented worms
Class Polychaeta

    Chaetopterus
Segmented worms
         Class Polychaeta

           Pogonophora –
            bearded worms
                             Segmented worms

                               Class Polychaeta



Halosynda brevisetosa




                        Arctonoe pulchra
                            Segmented worms


                   Class Polychaeta




Arctonoe vittata

            Cirriformia sp.
Segmented worms
 Class Polychaeta


                                Eudistylia
                                  polymorpha



                    Nereis vexillosa
Segmented worms

Class Oligocheata
Segmented worms

Class Hirundinea
Peanut worms




Phylum Sipuncula
Peanut worms
      Phascolosoma
       agassizii




                     Sipunculus nudus
Phylum Gnathostomulida
Phylum Loricifera
Phylum Cycliophora
Prof. Reinhardt Møbjerg Kristensen
                               1956




                         (1995)       (1983)




                        2000
Phylum Mollusca
Phylum Mollusca
Class Gastropoda
Class Gastropoda
                    Cypraea
                      spadicea




 Littorina keenae


         Tegula brunnea
Class Gastropoda



                               Diodora aspera



  Littorina keenae


             Lottia gigantea
Class Gastropoda


                                 Aplysia californica



  Phyllaphysia taylori


              Tylodina fungina
Class Bivalvia
       Mytilus edulis



                                 Mytilus
                                 californianus




                        Protathaca staminea
Class Bivalvia
Class Bivalvia
Class Bivalvia
Class Cephalopoda
   Octopus bimaculoides




                     Octopus dolfeini
Class Cephalopoda

   Loligo opalescens
Class Cephalopoda
Class Cephalopoda
Class Cephalopoda

  cuttlefish
Class Cephalopoda
Class Cephalopoda
Class Polyplacophora


                        Katharina tunicata
Cryptochiton stelleri
Phylum Arthropoda
Phylum Arthropoda
Kingdom
 Animalia
Phylum
 Arthropoda
  *Jointed
    Appendages
Phylum Arthropoda

*hard exoskeleton
*Chiton
Phylum Arthropoda

*molting (ecdysis)
     Crustaceans




Insects
Subphylum Crustacea



 zooplankton
Copepods
Copepods


     Tigriopus californicus


a California intertidal
   species
Barnacles               Pollicipes
                         polymerus
              Balanus




Tetraclita rubescens
Barnacle
 anatomy
Whale barnacles


                          Barnacles



       Feeding barnacle
1851
Amphipods
Amphipods
                Megalorchestia
                  californiana




     Ampithoe
Amphipods



            Corophium
Isopods
Subphylum Crustacea

   Ligia occidentalis




                        Idotea stenops
Parasitic Isopod
Krill (euphausiids)
   Crabeater seal
     (Lobodon carcinophagus)




Blue whale
 (Balaenoptera musculus)
Decapods – shrimps, crabs and lobsters
Decapods
 Petrolisthes cinctipes




                          Pagurus samuelis
Decapods
Horseshoe crabs
 (Class Merostomata)
Sea spiders
(Class Pycnogonida)
Sea spiders (Class Pycnogonida)




                     Ammothea hilgendorfi
Marine insects – very, very few
                            Marine water strider
                            (Halobates)




   Eggs of Halobates on seashell
Lophophorate Animals
Phylum Ectoprocta
(bryozoans, moss animals)
Phylum Ectoprocta

                Bugula pacifica
Phylum Ectoprocta




 Membranipora membranacea
Phylum
 Phoronida
Phylum Phoronida
                            Phoronis vancourverensis




  Phoronopsis californica
Phylum Brachiopoda
                     Lamp shells
Phylum Brachiopoda




              Terebratalia transversa
Phylum Echindermata
Endoskeleton
Water vascular system
Water vascular
 system
Sea stars              Class Asteroidea
               Pisaster ochrachus




     Patiria miniata
Brittle stars
                         Class Ophiuroidea
  Ophiopholis aculeata




                         Amphiodia occidentalis
Sea urchins, sand dollars
                       Class Echinoidea




  Strongylocentrotus
     franciscanus
                         Strongylocentrotus
                            purpuratus
Sea urchins, sand dollars      Class Echinoidea


                                           male



 Dendraster excentricus

                                         female



      Juvenile ‘weight belt’
sea cucumbers
               Class Holothuroidea
         Psolus chitonoides

                Parastichopus californicus
Sea lilies, crinoids

                 Class Crinoidea
Phylum Chordata
Subphylum Urochordata

              Tunicates, sea squirts
                   Adult morphology
Subphylum Urochordata




 Larvae
Subphylum Urochordata
     Metamorphosis into adult form
Subphylum Urochordata



 salps
Subphylum Urochordata

                        Aplidium californicum




   Ciona intestinalis
Phylum Chordata
              Subphylum
                Cephalochordata




Lancelates,
 amphioxus
Subphylum Cephalochordata




   niche
Subphylum Cephalochordata


 Branchistoma californiense

				
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