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45 terms by bhatta

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ABE (automatic benthic explorer)

an untethered submersible equipped with cameras and sensors that navigates by sonar for long periods of time, "sleeping" on the ocean floor until signaled to ascend for recovery

decompression chamber

a large portable container that divers can enter after they've surfaced to help their bodies return to normal atmospheric pressure

echo sounder

a device used to determine depth by soundwaves

fathom

six feet

oceanography

the study and exploration of the world's ocean

ROV

remotely operated vehicle

Remotely Operated Vehicle

unmanned submersible tethered to a mother ship and operated by pilots using a joy stick

SCUBA

self contained breathing apparatus

self contained breathing apparatus

device that allows divers to breathe underwater for long periods of time

SONAR

sound navigation ranging used to calculate distances

submersible

a small submarine used by scientists to explore the ocean depths with windows, lights, cameras, etc. etc.

abiotic factor

the nonliving factors of the environment that an organism lives in

abyssal plain

mostly flat portion of ocean floor which provides a home to a variety of unique organisms that are adapted to the extreme conditions of this habitat

aphotic zone

lowest layer of the ocean, 100% darkness for only 19.99$!

benthos

organisms that live on the bottom of the ocean, instead of saying your a bottom feeder, just call them a bentho

bioluminescence

the production of nonthermal light by creatures converting chemical energy to light energy to lure prey or attract a mate or assist in keeping like species together

75

percent of benthic creatures that glow

biotic factor

living organisms in an environment

chemosynthesis

the production of organic material by energy from chemical reactions rather than light

consumer

feeds on other organisms because they cannot make their own food

continental shelf

a gently sloping shallow area of the ocean floor that extends outward from the edge of a continent

continental slope

A steep incline of the ocean floor leading down from the edge of a continental shelf

ecosystem

a community of different but interdependent species and their nonliving environment

estuary

a coastal inlet where fresh river water mixes with salty ocean water

fauna

animal

flora

flower

food chain

a hierarchy of food relationships from the simplest to the most complex

habitat

the immediate space where an animal or plant lives and has food water and protection

holdfasts

rootlike structures of plants to help hold on to the rocky bottom of the ocean

hydrothermal vent

an opening in the sea floor where superheated water and other material(s) are discharged into the surrounding seawater

intertidal zone

an area that stretches form the highest high tide line to the lowest low tide line on the continental shelf

mid-ocean ridge

a chain of undersea mountains that circles the earth through every ocean

nekton

free swimming organisms whose movements are independent of the tides, currents, and waves

neritic aone

the first 200 meters of ocean water including the seashore and most of the continental shelf

oceanic zone

extends from 200 meters deep to all the way down to the bottom of the ocean

ocean trench

the deepest parts of the ocean, deepest one being the Marianas trench about 5 miles

photic zone

the top layer of the ocean where sunlight penetrates

photosynthesis

the process by which plants and other autotrophs make food with sunlight

phytoplankton

the plant and algae component of plankton the primary producers of most ocean food webs

producer

an autotroph

salinity

the amount of dissolved salt(s) in a water sample

seamount

a volcanic peak that rises at least three thousand feet from the seafloor

sustainability

capability of continuing to meet the needs of the present over a long period of time without causing future damage

upwelling

the movement of cold water upward from the deep ocean caused by wind

zooplankton

animal component of the plankton that feeds on phtyoplankton and other zooplankton

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