Thursday, June 2, 2011

http://waterinteraction22.blogspot.com/

Highly dangerous animals: (info on poster)






For information on more criminals, please go to:
http://thefountainofbiodiversity.wordpress.com/2011/05/22/psa-lionfish/ (lionfish)





Our motley crew - last day

Me, trying to look smart, and wondering whether we finally did the DO lab right...

The pool. We took samples from here, and also swam here after our first trip around the island...

The dock, we spent a lot of time here.

Kelly, Katie, Rachel, Chris, Ananda

The classroom, we spent an equal amount of time here as at the dock...

Sunset during our sunset watch. View from the Old Seven Mile Bridge

Understanding DO, and doing Seawater chemistry

Sea Star

Understanding water properties

Photosynthesis

The group, on the way out to the reef!

Our house, painted Flagler yellow. Turns out it's haunted...

The Old Seven Mile Bridge on the left, and the New Seven Mile Bridge on the right

Our caught Nurse Shark

NO PROP SCARS *shakes our fists*

Nitrite breifing

Mr. Sea Turtle...is he real? We may never know...

On the ferry

Kayak Dave is the muscular looking bloke

Heloise on the ferry

Us, Thursday morning

Group picture. I'm really going to miss this.

On our way up to the Old Seven Mile Bridge

Drawing food webs

Food webs again

Heading out to fish!

Underwater view at the reef

Underwater view at the reef

Gearing up for the first time

First class. We worked diligently taking notes.

Searching for plankton!

The ethereal Mangrove forest

Duckie. Duckieduckieduckieduckieeee!



Our Mascot, Dookey Bear

Biodiversity

On the plane ride down!

Ms. Karen and myself kayaking

5 Minute photobomb on the dock.

These memories will be with me forever...I don't think I will ever forget this trip.

Photosynthesis

So, photosynthesis creates sugar for plants to use for energy, it also produces oxygen. So, in this lab we experimented with 5 variables to test to see what sort of light produces the most oxygen. These are our results.

Variable Change %change
No light 1.2 to 1.2 0%
White 1.1 to 2.1 91%
Blue 1.4 to 3.7 164%
Red 1.6 to 3.0 88%
Green 1.0 to 1.0 0%

So, there are 2 light sources that did not promote any light: no light and green light.

Oxygen was produced in the experiment, which was our main goal. Success!

  1. No light and green light had 0% change
  2. Blue light made the most oxygen - similar to the depths of water.
  3. White light had less photosynthesis occurring than blue light
  • With no light - photosynthesis requires light to occur
  • Green light - plant was green so its light is reflected by the green in the chloroplasts so the algae could not use the light to split the oxygen molecules
  • Our error was considered to be our lack of massing the algae samples.

Motion in the Ocean

Waves crash when molecules underwater hit a surface and the molecules on top keep moving because their molecular force is faster. Because of this motion, tides - high tide and low tide - are characterized by the actions of the Moon and the Sun. As the moon moves closer, the water moves outwards, as the Moon moves further away, and the Sun moves closer, the water moves further away.

Water is also characterized by currents, this is caused by water hitting land, or, reflection. Shallow currents are used by ships to sail the world. Global circulation occurs with deep currents.

With northern winds, the circulation of water occurs in a clockwise motion. With southern winds, the circulation of water occurs counterclockwise.

Some more examples of tides are heap tides - these are smaller tides as opposed to spring tides - which are larger.

In relation to refraction, there is also diffraction. Refraction occurs with bent waves, which is the type we normally see. Diffraction occurs when the water passes through 2 objects, like the islands we created on our wave simulator. Reflection is the action when waves hit a surface and bounce off directly.

Wednesday, June 1, 2011

Invertebrate

What is an invertebrate?
  • Any animal without a backbone
What percentage of all marine life are invertebrates?
  • >90%
How many key phylums of invertebrates are there?
  • 8
Porifera:
  • Sponges
  • Simple multi-cellular organisms with no true tissue layers or organs.
  • Sessile/non-moving.
  • Pore bearing.
  • Filter feeders.
Cnidaria:
  • Corals, Anemones, Jellyfish, Hydroids
  • Radial symmetry
  • Polyp/Medusa stages
  • Nematocysts
  • Nettle cells
  • Carnivorous
  • Jellyfish eat 10x their body weight, daily
  • Nerve net
Ctenophora:
  • Comb jellies
  • Lacks stinging cells and possesses comb like cilia
  • Coloblasts
  • 95% water
  • Effective predators
Platyhelminthes:
  • Flatworms
  • Slow moving worms
  • Size can range from 1-5 inches
  • Can be confused with nudibranchs
  • Nudibranchs - shell-less snails
  • Flattened and leaf like
  • Bilateral symmetry
  • 3 cell layers
  • Brightly colored
  • Mostly carnivorous
Annelida:
  • Segmented worms, Fire worms, Feather Dusters, Tube worms
  • Segments each contain the same organs
  • Share a common gut, nervous system, and circulatory system
  • Septa separate segments internally
  • Annuli separate segments externally
Mollusca:
  • Snails, Slugs, Squid, Octopus, Clams, Oysters, Chitons
  • All have mantle, shell, and muscular foot
  • 2nd most abundant marine invertebrate phylum
  • Octopus and squids have a siphon as opposed to a muscular foot for movement
Arthropoda:
  • Shrimp, Lobster, Crabs, Barnacles, Horseshoe Crab
  • "Jointed foot"
  • All members body plan made up of: head, thorax, and abdomen
  • Exoskeleton
  • Segmented bodies
  • Pairs of legs
  • Horseshoe Crabs have blue blood
Echinodermata:
  • Brittle stars, Basket stars, Sea Urchins, Sand dollars, Sea Stars, Sea Cucumber
  • All echinoderms are marine organisms
  • Hard internal skeleton covered by a think skin and tube feet
  • 5 point body plan
  • Radial symmetry
  • Water vascular system
  • Regenerative capabilities

Plankton

What is a plankton?
  • A plankton is any organism that moves with the current
What are two types of plankton?
  • phyto: plant like plankton
  • zoo: animal like plankton
Is a lion's mane jellyfish a type of plankton?
  • The lion's mane jellyfish is the largest plankton, it is classified as such because it has to swim with the current
Meroplankton v Heroplankton
  • Mero: lives part of its life as a plankton - sea stars, fish, crabs
  • Hero: lives it's entire life as a plankton - zooplankton, phytoplankton
Where do you find phytoplankton?
  • In the neuston zone - this is an area in the water that is at least 3ft from the surface
Where do you find zooplankton?
  • Through the Diel migration pattern - this is the pattern that some marine animals follow by going from the bottom of the ocean to the top at night.
How do plankton stay afloat?
  • using: cilia, flagella, buoyancy bubble, oil, spines, long legs
How much oxygen does plankton create?
  • Plankton's create at least 70% of the Earth's oxygen, as opposed to the 30% that plants do

Biodiversity

http://www.wordle.net/show/wrdl/3712489/Biodiversity

That link will take you to a word cloud (again):

Here I will (again) define the terms for you.

Percent Error: take more samples, use more transect lines, (Final-Initial/Final)*100

Quadrat: a portable frame, with an internal grid. Used to mark out the number of species in a small area/habitat

Shannon Index: count species

Richness: count species

Monera: a former taxonomic group within the domain Prokaryota - bacteria, archaebacteria, and blue-green algae

Protist: free living or colonial organisms with diverse nutritional and reproductive modes

Fungi: any group of unicellular or multicellular spore producing organisms feeding on organic matter; including molds, yeast, mushrooms, toadstools

Plant:the taxonomic kingdom comprising of all living or extinct plants

Animal: the taxonomic kingdom comprising of all living or extinct animals

Population: all the inhabitants of an area

Density: the degree of compactness of the species

This is the simplest way to understand the Biodiversity of organisms.

Basics in Ecology

http://www.wordle.net/show/wrdl/3711476/Basics_in_Ecology

That link is to a word cloud of the basic terms in ecology.

Here, I will define each of them to demonstrate my general understanding.

Autotroph: organism that produces its own food from inorganic substances like carbon dioxide
Prokaryote: single-celled organism that doesn't have a defined nucleus with a membrane or any specialized organelles
Photoautotroph: organism that can synthesize its own food from inorganic material using light as a source of energy
Herbivore: animal that feeds on plants
Omnivore: animal that feeds on plants and other animals
Carnivore: animal that feeds on other animals
Food Web: system of interlocking and interdependent food chains
Food Chain: a hierarchical series of organisms, each dependent on the next as a source of food
Key Stone Species: a species on which other species in the ecosystem largely depend on
Photosynthesis: process by which green plants and other organisms use sunlight to synthesize foods from carbon dioxide and water
Eukaryote: an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained with in a distinct nucleus.
Chemoautotroph: organism that derives energy from the oxidation of inorganic compounds
Instar: a phase between two periods of molting in the development of an insect larva or other invertebrate animal

That sums up the basics of ecology!

Properties of Water

http://www.wordle.net/show/wrdl/3710694/Water_Properties

This link shows a word cloud of the important properties of water.

Condensation: a gas changing into a liquid.
Gas: water above boiling point
Liquid: water between freezing and boiling
Freezing: water is a solid
Solid: the molecules of water stick together because they have "frozen"
Melt: water is changing from a solid to a liquid
Evaporate: water is changing from a liquid to a gas
Sublimation: water is changing from a solid to a gas
Frost Formation: water changes from gas to a solid
Less Dense: water contracts until it reaches 4C then it expands until it is solid
Triple Point: Earth is a triple point for water because it is found on Earth in all 3 forms
Adhesion: water molecules is attracted to other sorts of molecules
Cohesion: water molecules are attracted to other water molecules
Surface Tension: cohesion of water molecules at the surface of a body of water
Capillary Action: adhesion of water molecules to another object
Transpiration: transfer of water from plants to the atmosphere

That sums up all the definitions of water potential!

Another way to look at some properties of water can be seen here:

https://docs.google.com/present/edit?id=0AWH6tXMQx-SbZGs4dHFnY18xa3oyZHI5Yzk&hl=en_US&authkey=CJao34sN

Tuesday, May 31, 2011

Marine Adaptations

An adaptation is a characteristic to help an animal make a better fit in an environment.

Three marine adaptations that have developed include: interior gills, movement with: legs, tentacles, and fins, and a swim bladder.

Movement and specialized limbs: Muscular foot, tube feet, siphon, cilia.

Specialized eye structures: Ommatophores, tubular eyes, tapetum lucidium, increased rod cells.

Catching prey: Amullae of lorenzi, illicium.

Avoiding predators: Thick skin, shells, setae, toxin, claws, inking, mucus bubble, inflation.

Camouflage: blending in with the environment. Counter shading: coloration change between night and day or dark and light.

Bioluminescence: energy released in the form of light. Advantages: attract prey, camouflage, avoid predation, communication, attract mates. 90% of deep-sea creatures use bioluminescence.

Sea Chemistry

Dissolved Oxygen:
Amount of oxygen dissolved in a lake, stream, or river. Dissolved oxygen is the most important indicator of the health of a body of water and its capacity to support a balanced ecosystem of plants and animals. Dissolved oxygen comes from cell respiration and photosynthesis in the organism as well as from the atmosphere. So, in the Arctic Ocean, the water has a very low salinity - this will affect the amount of dissolved oxygen in the water positively because a lower salinity produces more dissolved oxygen. Also, the marine life will operate using higher levels of oxygen.

pH:
pH measures the acidity of water, pH stands for potential of hydrogen. A pH value is a number from 1-14, with 7 being the neutral point. As the number decreases, the solution is more acidic; as the number increases the solution becomes more basic.

Temperature:
A measure of hotness and coldness in degrees.

Salinity:
The total amount of dissolved material in grams in one kilogram of sea water.

Turbidity:
Having sediment or foreign particles stirred up or suspended.

Nitrite:
An element that is toxic to fish, causes eutrophication. Eutrophication creates in increase in nutrients, usually with an algae bloom caused by chemical run-off.

Fish Identification

Its actually pretty easy to identify fish. There are 3 ways to identify fish, basic fish markings, tail types, and mouth types. Superior(tarpon), terminal(barracuda), and inferior(yellow goatfish); examples of mouth types. Lunate(blue striped grunt), forked(tarpon), truncate(gray snapper), and rounded(goliath grouper); examples of tail types. Bars, stripes, and bands are all basic fish markings.

There are 11 basic groups of reef fish. Silvery fish, sloping head/tapered body fish, pectoral swimming fish with obvious scales, disk/oval fish, small oval fish, heavy body/large lipped fish, reddish, big eyed fish, bottom dwelling fish, odd-shaped fish, eels, and sharks and rays.

Silvery fish: two groups - ambush and schooling, open water swimmers, majority have deeply forked tails, streamlined bodies. Some examples are: barracuda, tarpon, and bermuda chub - these were all fish that were seen at the reef and around the island.

Sloping head/tapered body fish: elongated dorsal fin, inferior mouth, open water swimmers, night feeders, majority are fast swimmers. Some examples include: Mangrove/Gray snapper, yellowtail snapper, blue striped grunt, french grunt, and porkfish.

Pectoral fish with obvious scales: fly like birds around the edge of the reef, group is often brightly colored, change sex throughout life cycle, truncate tail, and a terminal or inferior mouth. Examples include: stoplight parrotfish, redband parrotfish, rainbow parrotfish, midnight parrotfish, blue parrotfish, hogfish, spanish hogfish, and bluehead wrasse.

Disk/oval fish: size varies among groups, reef-huggers, laterally compressed bodies, tiny pointed mouths, fairly active during the daytime, very colorful and usually have distinct markings. Examples include: banded butterfly fish, queen angelfish, blue tang, doctor fish, ocean surgeonfish.

Small oval fish: approximately 4 inches long, reef huggers, strongly territorial, swim well despite their feathery fins and tail, terminal mouths. Examples include: bicolor damselfish, sergeant major, blue chromis.

Heavy body/Large lipped fish: massive in size, slow moving due to size and truncate tail, reside under ledges at the base of the reef, suction feeders - so they swallow their prey as a whole. Examples include: groupers.

Reddish, Big-eyed fish: 1 inch to a foot long, inhabit cracks and crevices of the reefs, spiny dorsal fin, forked tail. Examples: squirrelfish.

Bottom-dwelling fish: 1 to 2 inches in length, terminal mouths, rounded tails, rest on bottom of reef with pectoral fins, mimics cleaning fish. Examples: neon goby.

Odd shaped fish: examples include: yellow goatfish, spotted scorpionfish, balloonfish, porcupine fish, trumpetfish.

Eels: very shy, inhabit crevices or under reef ledges, no pelvic or pectoral fins, continuous dorsal and caudal fins, undulate like territorial snakes, no scales - protective mucus layer, vary from 1.5 feet to 8 feet in length. Examples include: green and spotted moray eels.

Sharks and Rays: skeletons are composed of cartilage, rely on Ampullae of lorenzini to locate food, continuous replacement teeth, feeding occurs in open water during the early morning and at sunset. Examples include: nurse shark, reef shark, southern stingray, and spotted eagle ray.

Friday, May 20, 2011

Zebra Mussels

TOP 10 INVASIVE SPECIES
SPECIFIC REVIEW OF...
#1. Asian Carp
#2. Sea Squirt
#3. Lionfish
#4. Water Chestnuts
#5. Didymo
#6. Nutria
#7. Sea Lamprey
#8. Zebra Mussel
#9. Chinese Mitten Crab
#10. Alligator Weed

THESE ARE DANGEROUS SPECIES, TAKE CAUTION WHEN APPROACHING
SPECIFIC PROFILE...HEED CAUTION
#8.Zebra Mussel

Name: Dreissena polymorpha
Alias: Zebra Mussel, Zeke, "the Prowler"
Crime: Competes with native species, clogs pipes
Date of Introduction: 1988
Introduced From: Eurasia
Located:Louisiana, Mississippi, Oklahoma, Alabama, Tennessee, Kentucky, West Virginia, Ohio, Indiana, Illinois, Wisconsin, Minnesota, Michigan, Pennsylvania, New York, and some of Canada.
Characteristics:
Fingernail-sized, freshwater mollusks with a striped pattern on both shells. Bivalve. Can grow up to 1 inch in length.
How to Prevent: After being in the water, scuba divers and sailors should clean their equipment on land so the mussels don't end up in the water again.

FBIs (Federal Bureau of Invasives) Top 10 Offenders

TOP 10 INVASIVE SPECIES
SPECIFIC REVIEW OF...

#1. Asian Carp
#2. Sea Squirt
#3. Lionfish
#4. Water Chestnuts
#5. Didymo
#6. Nutria
#7. Sea Lamprey
#8. Zebra Mussel
#9. Chinese Mitten Crab
#10. Alligator Weed

THESE ARE DANGEROUS SPECIES, TAKE CAUTION WHEN APPROACHING
SPECIFIC PROFILE...HEED CAUTION
#9. Chinese Mitten Crab

Name:
Eriocheir sinensis
Alias: Chinese Mitten Crab, Morty, "the Menace"
Crime: Competes with native species
Date of Introduction: 1992 (West Coast), 2005 (East Coast)
Introduced From: China
Located: West Coast, Great Lakes, Chesapeake Bay
Characteristics: Hairy claws with white tips, notch between the eyes, fourth spine is small, smooth body shape, 3 inches in width, legs are 6 inches long, light brown coloring
How to Capture: It is impossible to physically control them, their population is too immense to wipe out.
How to Kill: It is not ideal to use chemicals to eliminate them from the population because it would also kill other marine life.
How to Prevent: Humans have introduced these species as food and have been stuck to ship boats, knowing how to not distribute the species will prevent them from spreading.



Whale Falls


This image is the skeleton of a 35-ton, 13m gray whale on the sea bottom in Santa Catalina

Whale fall is the term used for a whale carcass that has fallen to the ocean floor. Whale falls were first observed in the 1980s, when we first had the technology for deep-sea exploration.

When a whale dies in shallow water, its carcass is devoured by scavengers, like snails, over a period of time. In deeper water, the carcass can provide sustenance for an ecosystem over decades.

Organisims observed at whale falls include: squat lobsters, bristleworms, prawns, shrimp, hagfish, crabs, sea cucumbers, octopuses, clams, and sleeper sharks. Whale falls also generally provide sustenance for tuberworms.


Mangroves

The green represents the population of Mangrove biomes in the world

Mangroves are types of trees up to medium height and shrubs that grow is salty coastal sediment habitats. Mangroves are used in three senses:

  1. The habitat and entire plant
  2. All trees and large shrubs in the area
  3. Refer to the Rhizophora
The mangrove biome is a distinct salty woodland or shrubland habitat characterized by coastal environments that have fine sediments that protect the plants from high-energy wave action. Mangroves dominate 75% of tropical coastlines.



The food web is represented by: