phylum cnidaria (coelenterates) jellies anemones corals hydroids
TRANSCRIPT
![Page 1: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/1.jpg)
Phylum Cnidaria (Coelenterates)
• Jellies• Anemones• Corals• Hydroids
![Page 2: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/2.jpg)
Hydroids (2) & Hydrocorals (2)
Hydroids- usually colonial, skeleton looks branchy like a fern, individual
polyps are attached to branches. Complex life cycle.
Hydrocorals- colonial, marine hydrozoans with a limestone skeleton.
(resemble true corals).
![Page 3: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/3.jpg)
Christmas Tree
• Hydroid
![Page 4: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/4.jpg)
Portuguese Man-Of-War• Hydroid• Dangerous nematocysts-don’t touch and don’t try to pull one off of your friend (you’ll get stung too!)
![Page 5: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/5.jpg)
Branching (Encrusting)Fire Coral
• Hydrocoral• Don’t touch…these
are one reason to be thankful you’ll be wearing a wetsuit!
![Page 6: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/6.jpg)
Blade (Leafy) Fire Coral
• Hydrocoral
![Page 7: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/7.jpg)
Jellyfish (2)
True Jellyfishes- translucent, unattached medusae, swim in open
water, consist of prominent dome and nemotocyst-bearing tentacles
![Page 8: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/8.jpg)
Sea Thimble
• Jellyfish• Tiny and numerous!• We may see these in Andros, but they only sting your
mucus membranes, so you can touch them with your hands!
![Page 9: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/9.jpg)
Upside-down (Cassiopea)• Jellyfish• Blend in well, look in warm shallows• May be coin to pancake size
![Page 10: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/10.jpg)
Gorgonians (8)
Gorgonians- commonly called “soft corals”, lack rigid, permanent
skeletons. Central core is surrounded by gelatinous “rind” with imbedded
polyps.
![Page 11: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/11.jpg)
Corky Sea Fingers
• Gorgonian
![Page 12: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/12.jpg)
Black Sea Rods
• Gorgonian
![Page 13: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/13.jpg)
Porous Sea Rods• Gorgonian• Picture showing pore-like polyps
on right
![Page 14: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/14.jpg)
Bipinnate Sea Plume
• Gorgonian
![Page 15: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/15.jpg)
Yellow Sea Whip
• Gorgonian
![Page 16: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/16.jpg)
Angular Sea Whip• Gorgonian• Commonly seen on
our snorkels. • Picture below shows
details of polyps.
![Page 17: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/17.jpg)
Common Sea Fan
• Gorgonian• Ones we see
will have purple
colored “veins”.
![Page 18: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/18.jpg)
Venus Sea Fan
• Gorgonian• Notice yellow colored
“veins” on the sea fans on the left.
![Page 19: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/19.jpg)
Anemones (4)
Anemones- solitary polyps attached to bottom of sea, lack hard skeletal
parts. Tentacles with nematocysts sting and capture prey which is then
inserted into mouth on oral disc. May contract tentacles for protection.
![Page 20: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/20.jpg)
Giant (aka: Pink-Tipped)
• You will probably see these, especially during our invertebrate walk. Usually pretty small (1-3 in)
![Page 21: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/21.jpg)
Sun
• Anemone
![Page 22: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/22.jpg)
Elegant (Burrowing)
• Anemone
![Page 23: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/23.jpg)
Corkscrew
• Anemone• Look for these
attached to patch reef or wreckage
![Page 24: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/24.jpg)
Zoanthids (2)
Zoanthids- similar to anemones, but tiny (<1/2 in.) and mostly colonial.
Only has 2 rings of tentacles.
![Page 25: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/25.jpg)
Mat
• Zoanthids
![Page 26: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/26.jpg)
White Encrusting
• Zoanthid
![Page 27: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/27.jpg)
Corals (13)Stony Corals- hard corals, reef builders.
Polyps secreting calcium carbonate to form hard cups (corallites) that protect soft bodies.
Increase in size by asexual budding.
NOTE: When snorkeling over a coral head, look for combinations of stony coral,
gorgonians, anemones and other organisms all living together.
![Page 28: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/28.jpg)
Staghorn • Coral• You will see these
often on the main reef!
![Page 29: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/29.jpg)
Elkhorn
• Coral• Ginormous!• These have made a comebackaround Andros~you should see lots!
![Page 30: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/30.jpg)
Finger (Clubbed-finger)
• Coral• Commonly seen on our trip.• Look for the large wall of finger coral by the
oceanic blue hole
![Page 31: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/31.jpg)
Pillar
• Coral
![Page 32: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/32.jpg)
Great Star
• Coral• Smaller picture shows individual polyps
![Page 34: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/34.jpg)
Elliptical Star
• Coral
![Page 35: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/35.jpg)
Golfball
• Coral
![Page 36: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/36.jpg)
Mustard Hill
• Coral• You should see these
nearly every day.
![Page 37: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/37.jpg)
Symmetrical (Smooth) Brain
• Coral
![Page 39: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/39.jpg)
Rose• Coral• Elliptical on left• Hemispherical on right
![Page 40: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/40.jpg)
Lettuce
• Coral
![Page 41: Phylum Cnidaria (Coelenterates) Jellies Anemones Corals Hydroids](https://reader036.vdocuments.net/reader036/viewer/2022081504/5514fa57550346a80c8b50f7/html5/thumbnails/41.jpg)
The End
Study your field guides and feel free to access this PowerPoint for review
purposes on the Marine Biology website!