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Department of Biological Sciences

Visayas State University

Rating: ____

Title: _______________________

Exercise No. __

Biology 111

Fundamentals of Marine Biology

Submitted by

_______________________

B.S. Biology 3

Group no. __

_____________

Date submitted

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Familiarization of Laboratory Equipment and Facilities

Introduction of different laboratory and field equipment:

Name Usage (Parameter measured )

U10 water quality checker pH, conductivity, turbidity, dissolved oxygen,

temperature, salinity

Atago hand refractometer Salinity

Secchi disk Water transparency

Water sampler Sampling water

Grab sampler Sampling sediments + accompanying biota

Hand corer Sampling (soft) sediments + meiofauna

Plankton net Sampling planktonExtech light meter Light intensity

Sensordata current meter Current velocity (speed + direction)

Hondex depth sounder Depth + bottom profile

MSF (mask, snorkel, fins) Snorkeling equipment

SCUBA gear Staying underwater for scientific investigations

Underwater cameras Documentation of underwater data (film + foto)

Transect line Measuring device

Sampling quadrats Specifies area of data collection

Manta board General assessment of unknown areas

do/pH Probe Measure dissolved oxygen/pH

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U10 water quality checker

Used to check parameters like pH, conductivity, turbidity, dissolved oxygen, temperature and

salinity. All sensors are located in the Probe. This is the only part of the equipment that needs to

come in touch with water.

Atago hand refractometer

Used to check the salinity of a water sample. Can be adjusted with pure destilled water. Shows

the salinity in ppm (parts per million) and .

Condutivity

sensor

Turbidity

sensor Condutivity

sensor

LCD Readout

Keypad

Probe

ReferenceDissolved

oxygen sensor

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Secchi disk

A measuring device to check

the transparency of the water.

The transparency can be usedas an indicator for pollution,

amount of undissolved matter

as well as an index for the

quantity of planctic organisms

in the water.

Water sampler

To get samples of different depths of an aquatic ecosystem, you need a water sampler. It gets

lowered down to the specific depth you want to collect a sample. By sending the messenger

down, the mechanism gets triggered and the water in the tube is trapt.

Messenger Line MessengerPlastic caps Charged mechanism

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Grab sampler

Sampling soft sediments like sand and mud with all the accompanying biota. When the shovel

reaches the ground, the mechanism gets triggered, the shovel closes.

Hand corer

To get sediment cores of mud or sand (soft

sediments) an all organisms in it. The core

samples have a specified volume for

qualitative analysis of the sediments and the

organisms per defined volume of sediment.

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Plankton net

Used to catch plankton in open waters. Different kind of plankton nets allow you to catch

plankton in specific depth and of specific size.

Extec light meter

The sensor of the Extec light

meter collects data of light

intensity. The scales of

measurement can be changed

with the keyboard.

Sensordata current meter

Collects data about current speed

and direction. Can store data to

gain all information needed

within one application.

opening Sample pot Discharge unit

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Hondex depth meter

An echo sounder to gatter data of depth and bottom profile. The transducer unit sends sonic

waves to the seafloor and collects its reflection. Shows things between the transducer and the

seafloor, like fishes or submarines.

MSF

Mask, Snorkel and Fins. Used for observation near

the surface or sampling in shallow water.

SCUBA gear

SCUBA = self contained underwater breathing apparatus.

Allows the scientist to stay underwater for longer periods

of time. Useful in observation and research of the behaviorof animals under water.

Air tank

Buoyancy

compensator

Weight belt

Wetsuit

Regulator

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Underwater cameras

Underwater cameras (video + photo)

are used for observation, identification

and documentation of underwaterecosystems and lifeforms.

Transect line

A transect line is an important tool in

ecological research. It is used to gather

statistically relevant data of an

ecosystem without sampling the whole

area but only defined parts of it.

Sampling quadrats

Sampling quadrats are used to gather

information about a specified area. The more

organisms you have to look at in an area, the

smaler are the quadrats you choose for

sampling. The quadrat is usually subdivided into

smaller subareas.

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Manta board

Used for general assessment of larger

areas. Drawn by a boat, the scientist

wearing scuba/snorkle equipment canpartially gather data about an unknown

area.

Do/pH Probe

Fore measurement of dissolved oxygen as

well as pH of a water sample. The sensor is

very sensitive so handle with care.