Shared Flashcard Set

Details

Tropical Field - Week 3
Aquatic habitats, algae, sponges, cnidarians, bryozoans, worms, mollusks
185
Biology
Undergraduate 4
07/11/2011

Additional Biology Flashcards

 


 

Cards

Term

What makes coastal habitats highly productive?

 

Definition
  • Onshore & offshore nutrients
  • Feeding grounds
  • Nursury habitat for fish, crustaceans, birds
Term
What are the coastal habitats?
Definition
  1. Mangroves
  2. Estuaries
  3. Seagrass Meadows
  4. Offshore shallow reef
Term
Where are the mangrove forests located?
Definition

Tropical/subtropical coasts of:

  • Asia
  • Africa
  • Australia
  • Americas
Term
__________ produce constant detritus.
Definition
Falling leaves
Term
As you go south, you notice a transition between ________________ and ________________.
Definition
salt marsh; mangrove forest
Term
Besides supporting the Red Mangrove, what else do prop roots do?
Definition
Create an underwater habitat (good for nurseries)
Term
Red Mangrove's scientific name?
Definition
Rhizophora mangle
Term
What types of animals live in/on/around mangrove roots?
Definition
  • Fish
  • Balanus barnacles
  • mangrove oysters (Crassostrea)
  • Flat tree oysters (Isognomon)
  • Tunicates
Term
What makes estuaries very rich systems?
Definition
  • Nutrient influx from land
  • Nutrients recycled within estuary
  • Bottom is full of invertebrates
Term
What colors usually indicate a poisonous tunicate or other organism?
Definition
Orange and Red
Term
Functions of estuaries:
Definition
  • Nursery habitat
  • Filter water of debris & sediment
  • Storm buffer
Term
What is the salinity of pure salt water?
Definition
33‰ (parts per thousand)
Term
Seagrass beds are ___ to ___ meters deep.
Definition
3 to 5
Term
How do seagrass beds spread?
Definition
rhizomes
Term
Seagrass seedlings can colonize areas already stabilized by ______.
Definition
algae
Term
Plant height and bed shape can be determined by ____________ and ___________.
Definition
wave action; currents
Term
Seagrasses are in Phylum ___________.
Definition
Anthophyta
Term
What are the reproductive organs of seagrasses?
Definition
  • Water-transported pollen
  • Reduced flowers
Term
Three types of seagrass found in the Keys are:
Definition
  1. Halodule
  2. Thalassia
  3. Syringodium
Term
The common name for Halodule is:
Definition
Shoalgrass
Term

The common name for Thalassia is:

Definition
Turtle grass
Term
The common name for Syringodium is:
Definition
Manatee grass
Term
Halodule likes ____ energy water. Therefore it is proximal to the ____ tide line.
Definition
low;low
Term
Which seagrass is the most common variety in the Keys?
Definition
Turtle grass
Term
Which type of seagrass is tubular, long, and thin (like spaghetti)?
Definition
Manatee grass
Term
What are some common organisms found in seagrass beds?
Definition
  • Queen Conch
  • Horse Conch
  • Sea Biscuit
Term
Seagrass beds are important for __________ ___________.
Definition
stabilizing sediment
Term
Anoxic sediment is a habitat for ________ bacteria.
Definition
anaerobic
Term
What are some benefitial functions of seagrass beds?
Definition
  • Oxygenate habitat
  • Provide cover
  • Enrich environment
Term
Predators of seagrass beds include:
Definition
  • Sea turtles
  • Sea urchins
  • Pinfish
  • Echinoderms
Term
Epiphytes and Epifauna of seagrass beds include:
Definition
  • Bryozoans
  • Crabs
  • Worms
  • Molluscs
  • Cnidarians
  • Sponges
Term
Epibionts decrease_______ _____ available for photosynthesis, causing ________ growth of the seagrass.
Definition
surface area; slower
Term
Concerns for seagrass beds:
Definition
  • Disease
  • Phytoplankton overpopulation
  • Epiphyte load
Term
Impacted areas tend to have more ______ and ______ than unimpacted areas.
Definition
sediment; mud
Term
Algae growth depends on _____ availability.
Definition
light
Term
What is the algal tissue for buoyancy called?
Definition
floats
Term
What is the plant tissue for buoyancy called?
Definition
support tissue
Term
What is the algal tissue for photosynthesis called?
Definition
blade
Term
What is the plant tissue for photosynthesis called?
Definition
Leaf
Term
What is the "stem" of algae called?
Definition
stipe
Term
What is the algal equivalent to roots called?
Definition
hold fast
Term
Phylum Chlorophyta is the _____ Algae
Definition
Green
Term
Phylum Phaeophyta is the _____ Algae.
Definition
Brown
Term
Phylum Rhodophyta is the _____ Algae.
Definition
Red
Term
Which phylum is most closely related to plants?
Definition
Chlorophyta
Term
How does the Phylum Chlorophyta store food?
Definition
as starch
Term
How does Phlum Phaeophyta store food?
Definition
as laminarian & mannitol
Term
Which Phylum is the typical "seaweed"?
Definition
Phaeophyta
Term
Which phylum of algae can be leafy, fuzzy, calcified, or encrusting?
Definition
Rhodophyta
Term
The common name for Avrainvillea sp. is ________ and it is a _______ algae.
Definition
soft fanweed; green
Term
The common name for Halimeda sp. is ____________ and it is a ______ algae.
Definition
common plateweed; green
Term
Caulerpa sp. is a ______ algae. How many species can we see in the Keys?
Definition
green; 4 (C. taxifolia, C. mexicana, C. paspaloides, C. racermosa)
Term
Cymopolia barbata's identifying features are ______ and _______________. It is a ______ algae.
Definition
notches;featherlike plume;green
Term
Penicillus sp. is known as ___________________ and is a ________ algae
Definition
Mermans shaving brush; green
Term
Acetabularia sp. is a ______ algae and its common name is ____________.
Definition
green; Mermaid's wineglass
Term
The common name for Ulva sp. is _______ and it is a ______ algae.
Definition
sea lettuce; green
Term
The common name for Valonia sp. is ____________ and it is a _____ algae
Definition
sea balloon; green
Term
The common name for Cladophora sp. is ___________ and it is a _____ algae
Definition
Black sea threads; green
Term
The common name for Padina sp. is __________ and it is a _____ algae.
Definition
Limey petticoat; brown
Term
The common name for Sargassum sp. is ________ and it is a _____ algae.
Definition
Gulfweed; brown
Term
Which are the most common genuses of brown algae?
Definition
  • Padina sp.
  • Sargassum sp.
Term
The common name for Dictyota sp. is ________ and it is a _____ algae.
Definition
Ribbonweed; brown
Term
The common name for Acanthophera sp. is ________ and it is a _____ algae.
Definition
Soft spine weed; brown
Term
What habitat has the most diverse ecosystem?
Definition
Coral Reefs
Term
Coral and coralline algae are made of ______.
Definition
CaCO3 (Calcium Carbonate)
Term
Sponges are made of _____.
Definition
Si (Silicon)
Term

Coral reefs are resistant to _____.

 

Definition
waves
Term
Reef structure gives ________ but animals must _______ for it.
Definition
protection; compete
Term
Corals are part of a _______.
Definition
Colony
Term
Corals reproduce ________ and _________.
Definition
sexually and asexually
Term
Asexual reproduction in corals occurs by:
Definition
  • budding
  • fragmentation
Term
Sexual reproduction in coral occurs by:
Definition
  • Mass spawning
  • Mobile planula larvae
Term
Some coral larvae can last ___ to ___ days before settling. This allows for _____________ migration.
Definition
26 to 105; long-distance
Term
Reef building corals that grow continuously are called:
Definition
Hermatypic
Term
Zooxanthellae is a mutualistic _____________.
Definition
dinoflagellate
Term
______________ lives in the endoderm of hermatypic coral.
Definition
Zooxanthellae
Term
What does coral gain from its mutualistic relationship with zooxanthellae?
Definition
  • gains nutrients & lipid sythesis
  • faster calcification
Term
The best latitudes for coral reefs are:
Definition
25 N - 25 S
Term
Hermatypic corals are restricted to __ to __ meters deeps.
Definition
25 to 50
Term
What salinity do coral reefs live at?
Definition
~35 ppt
Term
Benefits of wave action to reefs:
Definition
  • Brings O2
  • Brings nutrients
Term
How is coral protected from sediment & pathogens?
Definition
mucus
Term
Which coral has the thickest mucus?
Definition
Deep Sea Black Coral
Term
What are the reef types?
Definition
  1. Atoll
  2. Coastal
Term
What are the types of Coastal reefs?
Definition
  1. Fringe
  2. Barrier
  3. Platform
Term
Atoll reefs are around a submerged ________.
Definition
Volcano
Term
Barrier reefs are __________ and __________ a continent.
Definition
elongate; borders
Term
Reefs on the continental shelf are called:
Definition
Platform reefs
Term
The Buttress Zone is has:
Definition
mounds and channels
Term

Coral predators include:

 

Definition
  • Cyphoma (flamingo tongue)
  • Hermodice (fire worm)
  • Acanthaster (crown of thorns starfish)
  • Coralliophilia (coral eating snail)
Term
Phylum Ectoprocta (the Bryozoans) live as ________.
Definition
Colonies
Term
What is a major disease of coral reefs?
Definition
Blackband disease
Term
In coral reefs, warm water can lead to ______ _________.
Definition
coral bleaching
Term
What types of animals are in the Phylum Cnidaria?
Definition
  • Corals
  • Sea anemones
  • Jellyfish
  • Hydroids
Term
What types of animals are in the Phylum Ctenopora?
Definition
  • Comb jellies
Term
What types of animals are in the Phylum Porifera?
Definition
  • Sponges
Term
What types of animals are in the Phylum Ectoprocta (Bryozoa)?
Definition
  • "Moss Animals"
Term
What types of animals are in the Phylum Platyhelminthes?
Definition
  • Marine Turbellarians
Term
What types of animals are in the Phylum Annelida?
Definition
  • Polychaete worms
Term
Sandy/Muddy bottom habitats are important for _________ animals.
Definition
burrowing
Term
What type of reef has a shallow-water system of limestone rock covered by a thin sandy layer?
Definition
Hardbottom reefs
Term
What types of animals dominate hardbottom reefs?
Definition
  • Gorgonians
  • Sponges
Term
What is a gorgonian?
Definition
Soft coral
Term
What type of reef is characterized by a spur and groove formation?
Definition
Bank Reef
Term
Which type of reef is abundant in the upper Keys and is close to shore?
Definition
Patch reef
Term
If you look at seagrass blades closely, what can you observe?
Definition
Epibionts (Epiphyts & Epizoites)
Term
Which species are considered epiphytes in seagrass beds?
Definition
  • Diatoms
  • Dinoflagellates
  • Algae
Term
Which species are considered Epizoites in seagrass beds?
Definition
  • Hydroids
  • Sponges
  • Small sea anemones
Term
Why can't most coral grow in seagrass beds?
Definition
The sandy bottoms do not provide an adequate anchoring site for coral.
Term
What are the three types of sea grass we will encounter in the Keys?
Definition
  • Turtle Grass
  • Shoal Grass
  • Manatee Grass
Term
What are some identifying features of the Phylum Cnidaria?
Definition
  • Radial Symmetry
  • No head
  • Mouth surrounded by tentacles
Term
What are the life stages of a Cnidarian?
Definition
  • Polyp
  • Medusa
Term
Which Cnidarian life stage has the mouth pointed upward?
Definition
Polyp
Term
Which Cnidarian life stage has the mouth pointed downward?
Definition
Medusa
Term
The 2 functions of nematocysts are:
Definition
  • Stinging
  • Backward barbs hold on to prey and pull closer
Term
How many tentacles does a polyp have in hard corals?
Definition
12+
Term
How many tentacles does a polyp have in soft coral?
Definition
8.
Term
What are the 3 feeding methods hard corals use?
Definition
  1. Absorb dssolved organics
  2. Tentacles with nematocysts
  3. Zooxanthellae
Term
In the mutualistic relationship between hard coral and zooxanthellae, how do the zooxanthellae benefit?
Definition
  • Nutrients
  • CO2
  • Protection
Term
In the mutualistic relationship between hard coral and zooxanthellae, how do the hard corals benefit?
Definition
  • Sugars
  • O2
  • pH allows for the shell to be built
Term
What is coral bleaching?
Definition
Sign of stress caused by one or more or seven factors
Term
What factors can result in coral bleaching?
Definition
  • Change in water temp
  • Increased UV radiation
  • Changes in water chemistry
  • Starvation caused by zooplankton decline
  • Increased sedimentation
  • Pathogen infections
  • Changes in salinity
Term
What are some examples of coral species we may see in the Keys?
Definition
  • Staghorn/Elkhorn
  • Tube & Bush corals
  • Thick fnger corals
  • Mustard Hill coral
  • Rose coral
  • Golf ball Coral
  • Star Corals
  • Lettuce & Brain Corals
Term
Why are soft corals more flexible?
Definition
Body structure has more protein than calcium
Term
What are some examples of soft corals?
Definition
  • Sea fans
  • Sea rods
  • Corky sea fingers
  • Fire corals
Term
What are some examples of Hydroid species we may encounter?
Definition
  • Snail fur
  • Fern hydroid
Term
What are some species of anemones we may encounter?
Definition
  • Pale anemone
  • Giant anemone
  • Sun anemone
  • Corkscrew anemone
  • Blue branched anemone
Term
Which anemone is commonly found on mangrove roots?
Definition
Pale anemone
Term
Which anemone has pink tips?
Definition
Giant anemone
Term
Which anemone has zooxanthellae in the tips and has pseudotentacles in the day?
Definition
  • Blue branched anemone
Term
What types of jellyfish might we encounter in the Keys?
Definition
  • Moon Jelly
  • Small Thimble Jellyfish
  • Upside down jellyfish
Term
The genus name for the upside down jellyfish is:
Definition
Cassiopea
Term
What are identifying feature of the Phylum Ctenophora?
Definition
  • Asymmetrical
  • No nematocysts
  • Combs of cilia
Term
What species of Ctenophores are we likely to see?
Definition
  • Beroe's comb jelly
  • Sea walnut
Term
Which Phylum contains the simplest organisms?
Definition
Porifera
Term
How do sponges eat?
Definition
Filter feeders
Term
What species of sponges are we likely to come across in the Keys?
Definition
  • Chicken liver sponges
  • Vase sponges
  • Red boring sponge
  • Fire sponge
  • Tube sponge
  • Giant barrel sponge
  • Logger head sponge
  • Orange lumpy sponge
  • Orange icing sponge
Term
Why do sponges have pigmentation, and what can we compare this to?
Definition
For UV protection; like getting a tan
Term
Phylum Ectoprocta species live within a secreted _____________.
Definition
exoskeleton
Term
How to Bryozoans feed?
Definition
Filter-feed with a lophophore
Term
What is a lophophore?
Definition
U-shaped, ciliated feeding tentacle on Bryozoans
Term
What is the most common genus of Phylum Ectoprocta?
Definition
Bugula
Term
Other than Bugula, what other species of Ectoprocts can be found in the Keys?
Definition
  • Staghorn bryozoan
  • Lacey bryozoan
  • Crust bryozoan
Term
Flatworms have an _________ gut
Definition
incomplete
Term
What class of flatworms will we see in the Keys?
Definition
turbellarians
Term
Turbellarians can devastate ________ beds.
Definition
oyster
Term
___% of annelids are polychaetes.
Definition
80
Term
What types of annelids are in the Keys?
Definition
  • Lugworms
  • Medusa worms
  • Featherdust worms
  • Bearded Fireworms
Term
What are some identifying features of Echinoderms?
Definition
  • Water vascular system
  • Pentaradial symmetry
Term
What are the classes of Echinoderms?
Definition
  1. Ophiuroidea
  2. Asteroidea
  3. Echinoidea
  4. Holothuroidea
Term
Ophiuroidea includes what animals?
Definition
  • Brittle
  • Basketstars
Term
Most Echinoderms are _______.
Definition
nocturnal
Term
What animals are found in the class Asteroidea?
Definition
  • Starfish/Seastars
Term
Which species of sea star is not a predator? What does it feed on?
Definition
Cusion/reticulated sea star; microbes in sand or on turtle grass leaves
Term
What species of Asteroidea can be found in the Keys?
Definition
  • Cushion/reticulated Sea Star
  • Beaded Sea Star
  • Thorny Sea Star
  • Comet Star
Term
What animals are in the class Echinoidea?
Definition
Sea Urchins
Term
What do Echinoideas feed on?
Definition
Algae, plants, and detritus
Term
What species of Echinoidea are found in the Keys?
Definition
  • Giant Black Urchin
  • Red Rock Urchin
  • Rock Boring Urchin
  • West Indian Sea Egg

 

Term
What animals are in the Class Holothuroidea?
Definition
Sea Cucumbers
Term
What makes Holothuroideas different from other echinoderms?
Definition
They are soft and leathery
Term
What "secret weapon" do Holothuroideas possess?
Definition
Cuvier's organ (internal structures that are sticky & poisonous
Term
What species of Holothuroidea can be found in the Keys?
Definition
  • Five-toothed sea cucumber
  • Donkey dung sea cucumber
  • Florida sea cucumber
  • Tiger tail sea cucumber
Term
Tunicates are in the Pylum _________, subphylum ____________.
Definition
Chordata; Urochordata
Term
In which life stage are tunicates free-swimming?
Definition
Larval stage
Term
In which life stage are tunicates solitary or colonial,and sessile?
Definition
Adults
Term
Adult tunicates have 2 ________ for filter feeding.
Definition
siphons
Term
Examples of solitary large tunicates include:
Definition
  • Black Tunicate
  • Mangrove Tunicate
  • Bulb Tunicate
Term
Which type of Tunicate is characterized by being transparent, whitish/bluish, and having a ringed incurrent siphon?
Definition
Bulb tunicate
Term
What are some examples of Colonial tunicates?
Definition
  • Flat tunicate
  • Encrusting tunicates
  • Overgrowing Tunicates
  • Star tunicates
Term
Flat tunicates are characterized by:
Definition
  • Being a brownish color with white squiggles
  • Gelatinous & encrusting
Term
The phylum Mollusca has a ________ coelem.
Definition
reduced
Term
The Phylum Muollusca has __________ symmetry.
Definition
Bilateral
Term
The muscular foot and mantle/mantle cavity are associated with which Phylum?
Definition
Mollusca
Term
What organ do Mollusks have for respiration?
Definition
Gills
Term
Which Mollusks do not have the head-foot?
Definition
Bivalves
Term
What is the body plan for mollusks?
Definition
  • Head-foot
  • Visceral mass
  • Mantle
Term
A mollusk's shell is a _______ of the mantle.
Definition
secretion
Term
What is a radula?
Definition
horny, ribbonlike structure found in the mouths of all mollusks except the bivalves
Term
What four classes of Mollusks did we talk about?
Definition
  • Gastropods
  • Bivlaves
  • Chitons
  • Squid/Octopi (cephalopods)
Term
Which Gastropod is known for its pinkish color on the inside?
Definition
Queen Conch
Term
The Queen Conch is a _________; it eats _______________.
Definition
vegetarian; marine algae
Term
The stromboid notch is a characteristic of...?
Definition
All true Conchs
Term
What is the genus name that all true Conchs share?
Definition
Strombus
Term
What is the official state shell of Florida?
Definition
Florida Horse Conch
Supporting users have an ad free experience!