Marine Biology and Co.

Wednesday, June 1, 2011

Plankton (and Mr. Crabs!!!!)

Two types of plankton... (plankton is an organism that can only move with the current, they can only swim up and down the water column)

-Zooplankton (animal-like) (examples: Copepod, Jelly, Shrimp, Fish Larva

(fish larva)

(copepod)

-Phytoplankton (plant-like) (examples: Algae, Diatoms, Dinoflagellates)

(dinoflagellates)

(algae)

Tuesday, May 31, 2011

H20. There are many ways characteristics to test in water:

Salinity- (salt in water) measured with hydrometer, ppt is the unit of measure. High = more dense, and 36 ppt is average salinity for the ocean

Temperature- (average kinetic energy of molecules) measured with thermometer, Celsius is the unit of measure, radical change in temperature can harm organisms in the ocean, blablabla... ;)

Turbidity- (how many molecules are in the water) measured by how far you can see the disk (ex: 3.5 meters)

Ph- (acid vs. base in water) measured with ph kit, no unit of measure, and 7.8 - 8.3 is average ph for ocean water

Nitrite (toxic to fish; gets in water, prevents breathing and gets in immune system; causes eutrification, or an increase in nutrients which gives a lot of algae), Nitrate (too low doesn't give nugh nutrients)and Phosphate.

Dissolved Oxygen- (oxygen disolved in water)

Adaptations (fishes have)...

Gills
Fins
Suction Cups
Siphon
Swim Bladder
Tenticles

Thick Skin
Claws
Shells

Camouflage: dual color (Shark), shape, decorate (Decorator Crab)

Ampullae of Lorenzini (dots on shark that help it feel
temperature, magnetism, electricity of life)

Bioluminescence
Illicium (light from an Angler Fish)

Eyes (eye stalks, black vs. white vision and advanced)

Squirt water and/or guts (Sea Cucumber)
Inflate (Pufferfish)

Nematocysts (stinging Jellyfish)
Toxin
Ink (Sea Hare)

Yep, that's it!!

Invertabrates

Profera- Sponges

Cnidaria- Jellyfish

Ctenophora- Comb Jellies

Platyminthes- Flat worms

Annelida- Segmented Worms, Polychaetes, Fire Worms, Feather Dusters, Tube Worms

Mollusca- (shell) (Gastropods, Bivalve and Cephlapoda) Snails&Slugs, Squid&Octopus, Clams&Oyster, Chitons

Arthropoda- (jointed legs) (Crustacean, Chelicerata and Insecta) Shrimp, Lobster, Crabs, Horseshoe Crab

Echinoderms- (Spiney Skin) Brittle&Basket Star, Sea Urchin&Sand Dollar, Sea Stars & Sea Cucumber

Nematoda-roundworms

Motion in the Ocean part 3 (?)

Always calculate percent change (gives you a starting point).

No light 1.2 -> 1.2 0%
White Light 1.1 -> 2.1 91%
Blue Light 1.4 -> 3.7 164%
Red Light 1.6 -> 3.0 88%
Green Light 1.0 -> 1.0 0%

-no light and green light had 0% change (photosynthesis requires light to split water into oxygen; no light has no photosynthesis. Plant was green, and green light is reflected by chlorophyll in chloroplast; plant cant use that green light for photosynthesis because that green light is being reflected.)

-blue light made most oxygen (because blue, red and white -colors are not being reflected, blue light might have worked the best because the plant is an aquatic plant)

-white light did less photosynthesis than blue light (white light has all the colors; white light then has blue, so white light should have done as well as blue; white light could also use red light to make more)(the reason the result is funky is that there was slightly different amounts of algae)

Here's a pic:

(when we opened the aluminum)