2011-2012 Marine Bio Vocab (Oysters)

Front 1

fecund

Back 1

how reproductive oysters are

Front 2

spat

Back 2

larva stage, where oyster attaches to something

Front 3

filter-feeding

Back 3

feed by straining suspended matter

Front 4

pseudofeces

Back 4

ways oysters get rid of non food matter (sediment)

Front 5

substrate

Back 5

bottom area of water, where oysters settle

Front 6

oyster reef/ oyster beds

Back 6

where oysters attach to each other as spat, and grow, offering a good environment. Oyster reefs= best

Front 7

eutrophication

Back 7

excessve nutrients, stimulating excessive plant/algae growth

Front 8

hermaphrodites

Back 8

where oysters are both male and female, oysters= sequential hermaphrodites

Front 9

brood stock

Back 9

mature individuals used in aquaculture for breeding purposes

Front 10

clutched oysters

Back 10

oysters that have attached to a substrate

Front 11

Taylor floats

Back 11

used to grow oysters in controlled environment

Front 12

male phermones

Back 12

cause females to release eggs, caused by water temperature

Front 13

pediveliger larva

Back 13

3rd larva stage, has foot to look for substrate to attach to

Front 14

ciliated veliger larva

Back 14

2nd larva stage, microscopic zooplanktn that drifts up and down water column

Front 15

phytoplankton

Back 15

oysters favorite food

Front 16

meroplankton

Back 16

organisms that are planktonic for only a part of their life cycles

Front 17

holoplankton

Back 17

organisms that are planktonic for their entire life cycle

Front 18

ichthyoplankton

Back 18

eggs and larvae of fish, eat larva of oysters

Front 19

dioecious

Back 19

there is a difference in sexes (not all the same gender)

Front 20

crassostrea virginica

Back 20

eastern oyster

Front 21

mollusks

Back 21

large phylum of invertebrate animals (snails, oysters, octopi)

Front 22

bivalves

Back 22

mollusks that have 2 hinged shells

Front 23

valve

Back 23

shell/ defense

Front 24

intertidal oyster reefs

Back 24

reefs that experience high and low tide (during low tide, top of reef sticks out of water)

Front 25

subtital oyster reef

Back 25

oyster reef always under water

Front 26

predators

Back 26

eat prey

Front 27

haplospordium nelsonii

Back 27

MSX (oyster disease)

Front 28

perkinsus marinus

Back 28

Dermo (oyster disease)

Front 29

epizootic

Back 29

pandemic (animals)

Front 30

mantle

Back 30

forms shells/ ligaments, covers internal organs.

Front 31

gills

Back 31

help to breath, act as filter for eating

Front 32

ligaments

Back 32

attaches to shells and allows it to open

Front 33

adductor muscles

Back 33

it allows it to shut its shell, it grows with it

Front 34

crystalline style

Back 34

seperates phytoplankton

Front 35

broadcast spawning

Back 35

where oysters release eggs/sperm into water

Front 36

macroalgae

Back 36

large photosynthetic algae similar to SAV's

Front 37

byssus/ byssal threads

Back 37

protein threads, used to attach to surfaces

Front 38

hypoxia

Back 38

oxygen limited (less than 2-3 ppm)

Front 39

anoxia

Back 39

no oxygen (less than .2 ppm)

Front 40

CaCO (calcium carbonate)

Back 40

salt of calcium found in dead fossilized coral reefs, oyster shells, bones, and chalk

Front 41

open circulatory system

Back 41

blood not enclosed all the time in veins

Front 42

DO (dissolved oxygen)

Back 42

oxygen in water

Front 43

sessile

Back 43

fixed in one place

Front 44

turbidity

Back 44

clearness of water

Front 45

salinity

Back 45

amount of salt in water