Practical terms

CTD

Conductivity, Temp, Depth

Flotsam

biological debris

Jetsam

man-made debris

Thermocline

relationship between depth and temperature

Halocline

relationship between depth and salinity

Pyncnocline

relationship between depth and pressure

Hydrocast

lower and raise a meter thru water column to see what’s up

Nemograph

graph to predict amount of O2 that can dissolve in water

Jubilee

sustained period of hypoxia/anoxia. dead fish wash up on shore and are eaten

Plankton

microscopic organisms in water, AUTOTROPHIC

Zooplankton

microscopic organisms in water, HETEROTROPHIC

Nekton

macroscopic organisms in water

Meroplankton

organisms that spend only some of lifespan as plankton

Holoplankton

organisms that spend ALL of lifespan as plankton

Infauna

organisms that live in sediments

Wrack line

line of material deposited by waves

Porifera

sponges

Cnidaria

jellyfish, corals, anemones

Ctenophora

comb jellies

Annelida

segmented worms (bristleworms)

Mollusca

bivalves, gastropods (snails/squid)

Arthropoda

crustaceans (barnacles), chelicerates (horseshoe crabs)

Echinodermata

starfish, urchins, sea dollars

Hermatypic

reef-building corals

Epibiont

animals that latch onto/bore into skin or shell (barnacles)