Friday, April 15, 2016

Mystery Pond Water Organisms by [Fun-guys]

Members: Brian, Eunice, Thomas, Reylene


1. Bdelloid
photo_2016-04-11_18-52-16.jpg

A-C. Taxonomy:
Domain: Eukaryota
Kingdom: Animalia
Subkingdom: Bilateria
Phylum: Rotifera

Genus: Bdelloid

D. Defining characteristics of organism

  • Size varies between 0.004 and 0.02 inches
  • Mobility is done by a foot at anterior end
  • Rotifers have bilateral symmetry, segmented bodies, a nervous system with cephalization, but lacks a circulatory system
  • Rotifer cells do not undergo mitosis and instead grow larger in size themselves as animal ages
  • Reproduction is asexual by females


E. References used:


F. General Comments/Observations
This Bdelloid was wriggling like a worm, constantly moving up the slide. It was very hard to take a picture and when the camera switched too video mode, increased its speed and ran away. It was never seen after.

2. Euglena
euglina.png
A-C. Taxonomy:
Domain: Eukaryota
Kingdom: Protozoa
Subkingdom: Eozoa
Phylum: Euglenozoa
Order: Euglenales
Family: Eugleanaceae

Genus: Euglena

D. Defining characteristics of organism

  • single celled organism
  • Swims around with tail called flagellum.
  • Half-plant/half animal-It can get food by photosynthesis or feeding on pray!
  • Three membrane chloroplast(plants and algae have two)
  • red eye spot to detect light
  • no cell wall but reproduces by binary fission


E. References used:

  • Photos on lab poster
  • Live euglena in lab
  • http://www.mcwdn.org/Animals/Euglena.html
  • Encyclopedia of life (http://eol.org/pages/11704/overview)
  • AlgaeBase.org (http://www.algaebase.org/search/species/detail/?species_id=30510)
  • Photos on internet when I searched for "Euglena"

F. General Comments/Observations
Although Euglena was observed at x400 magnification, it wasn't noticed until the photos were magnified through a program-like a crime scene evidence! Actually it did look like a dead body not showing any movement at all.


3. Colpidium
Cilia.png

A-C Taxonomy
Domain: Eukarya
Phylum: Ciliophora
Class: Oligohymenophorea
Order: Hymenostomatida
Family: Tetrahymenidae

Genus: Colpidium
Species: Colpidium colpoda

D. Defining characteristics of organism
  • Small and oval shaped body with small mouth; fast swimmer
  • 50-70 µm long
  • unicellular organism
  • cells swim in a spiral and rotates around their long axis
  • environment range- dept range (m): 0 - 0  
  • mostly found in freshwater environment (rivers, streams, lakes, etc)
  • heterotrophic bacterivore that feeds on bacteria through an oral groove
  • reproduces asexually every 4-6 hours

E. References used:

F. General Comments/Observations
Copidium was actually one doing all the movement in the picture. It moved like a very short and fat worm. It was wondering around the Euglena. Maybe it was trying to take it out.


4. Closterium
photo_2016-04-11_18-52-31.jpg
A-C. Taxonomy:
Domain: Eukaryota
Kingdom: Protista
Division: Charophyta
Order: Desmidiales

Genus: Closterium

D. Defining characteristics of organism
  • Distinct group of green algae
  • Mobility is through slowly gyration of either end
  • Unicellular with a single central nucleus

E. References used:
  • http://www.micrographia.com/specbiol/alg/desmi/desm0100.htm
  • Reproduction can be either sexual or asexual depending on circumstances
  • Photo from poster in lab class

F. General Comments/Observations
Closterium was just lying there chilling and not really doing anything. Like a regular green algae, just enjoying the microscope light.

3 comments:

  1. I was so impressed with how you got the zoomed pictures of organisms on your post. I also was surprised compared to my groups pond water that your group had the closterium more dispersed. I also like that your font varies from other groups.

    Posted By Robert Barker

    ReplyDelete
  2. Nice post! Your pictures are super detailed along with the rest of your post. I agree that the zoomed in pictures were a rely nice added thing you guys did. Very nice post you have every thing covered.

    ReplyDelete
  3. If I were a closterium, I too would likely just chill and do nothing while hanging out under the microscope light, sounds like they've got it all figured out. The copidium reminds me of myself, a very short and fat worm, trying to take out the Euglena aka me trying to fight Shawna for stealing my microscope.

    ReplyDelete