radiate phyla ii chapter 7. class cubozoa: sea wasps and box jellyfish about 3 dozen species almost...
TRANSCRIPT
![Page 1: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/1.jpg)
Radiate Phyla II
Chapter 7
![Page 2: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/2.jpg)
Class Cubozoa: Sea wasps and box jellyfishAbout 3 dozen species almost all are tropical.
medusa & polyp body forms thick mesoglea
![Page 3: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/3.jpg)
![Page 4: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/4.jpg)
Unfrilled bell margin drawn inward to form a velum-like structure.
![Page 5: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/5.jpg)
Cubozoan Sensory Structures
Sensory structures called rhopalia.
![Page 6: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/6.jpg)
Cubozoan Sensory Structures
cubozoans have eyes.
The larger regions actually contain lenses, corneas, and retinas.
![Page 7: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/7.jpg)
Nematocysts are concentrated in rings on the tentacles of cubozoans.
![Page 8: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/8.jpg)
![Page 9: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/9.jpg)
![Page 10: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/10.jpg)
![Page 11: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/11.jpg)
Predominantly two species responsible
• The Box Jelly Chironex fleckeri
• Irukandji Carukia barnesi
![Page 12: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/12.jpg)
The Box Jelly Chironex fleckeri
![Page 13: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/13.jpg)
The Box Jelly Chironex fleckeri
![Page 14: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/14.jpg)
Box Jelly Chironex fleckeri
• Box jellies or sea wasps are thought to be responsible for about 65-100 deaths over the past 50 years in Australia.
• The tentacles can be up to 10 feet long.
• In Australia twice as many people die annually from box jellies as from sharks.
• The toxin of most cubomedusan jellies is more potent than cobra venom.
![Page 15: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/15.jpg)
Irukandji Carukia barnesi
Stings have been recorded from Australia, and a similar syndrome has been described elsewhere in the Pacific.
Every summer, more than sixty people are hospitalized with this potentially fatal syndrome.
![Page 16: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/16.jpg)
Cubozoan Life Cycle
• Similar to jellyfish.
![Page 17: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/17.jpg)
Class Anthozoa
• polyp body form ONLY • all marine
![Page 18: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/18.jpg)
Class Anthozoa
• some are colonial colonies are formed of individual zooids
• some are solitary
![Page 19: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/19.jpg)
Class Anthozoa- life cycle
eggsperm
larva
Sexual reproduction
![Page 20: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/20.jpg)
Class Anthozoa- life cycle
asexual reproduction
fission
pedal laceration
fission
![Page 21: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/21.jpg)
Class Anthozoa
Sea anemones
![Page 22: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/22.jpg)
![Page 23: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/23.jpg)
![Page 24: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/24.jpg)
![Page 25: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/25.jpg)
Class Anthozoa
Soft Corals
Sea pen
Sea pansy
![Page 26: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/26.jpg)
![Page 27: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/27.jpg)
Class Anthozoa
Stony Corals
![Page 28: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/28.jpg)
The Corals
• Make up the largest group of Anthozoa
• Colonial
• Secrete skeleton of calcium carbonate– Cup shaped– Polyp is fixed to this
![Page 29: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/29.jpg)
Theca
Sclerosepta
![Page 30: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/30.jpg)
![Page 31: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/31.jpg)
![Page 32: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/32.jpg)
Ctenophorescomb jellies
• Solitary
• All marine
• Sexual reproduction
![Page 33: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/33.jpg)
Ctenes of comb row
![Page 34: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/34.jpg)
Feeding
• Feed with specialized cells called colloblasts or lasso cells.
• A few species have cnidocytes.
![Page 35: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/35.jpg)
Colloblasts on ctenophore tentacles
![Page 36: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/36.jpg)
colloblasts
![Page 37: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/37.jpg)
Kleptocnidae
![Page 38: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/38.jpg)
Ph. Ctenophora
Coeloplana sp. Cestus sp.
Cl. Nuda
Pleurobrachia sp.
Deiopea kaloktenota
ctene row
Cl. Tentaculata
![Page 39: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/39.jpg)
Bioluminescence
• Produce light using photocytes
• Located in the walls of the digestive system
• Appears that light is coming from comb rows
• NOT all produce luminescence
![Page 40: Radiate Phyla II Chapter 7. Class Cubozoa: Sea wasps and box jellyfish About 3 dozen species almost all are tropical. medusa & polyp body forms thick](https://reader030.vdocument.in/reader030/viewer/2022032702/56649ce45503460f949b1693/html5/thumbnails/40.jpg)
Big Picture
• The radiate phyla are the first (i.e. basal) Metazoans
• Most have a dimorphic life cycle
• Specialized structures the Cnidocytes
• Some such as corals secrete a calcium carbonate base
• Ctenophores produce bioluminescence