Encyclopedian Dictionary ( Aquaculture ): Closterium

Closterium

I am taking a shot in the dark at what the identification of this particular creature is. The closest thing I've came across that looks anything like it,

Closterium

Closterium is a desmid, a microscopic green algae that occurs in all types of freshwater habitats. Desmids are typically one-celled, though sometimes filamentous or colonial, and are divided symmetrically into semicells connected at a central point. Closterium is characterized by a sickle shape and sometimes contains gypsum crystals.
Source: Closterium Video No. 1

Source: Closterium Tables, XXVII, XXVIII, XXIX, XXX

More Closterium Images

Closterium
(+/-) Enlarge Photo
Cloisterium resting near Cypridopsis

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Related Links
1. AquaNic
2. Identifying Green Algae

Aquaculture Magazines
1. Aquaculture Mag
2. Hatchery International

Brunswick Community College
1. Aquaculture Center
2. BCC Lab and Hatchery
3. BCC Homepage

Aquaculture Technology Program
Carteret Community College
Morehead City, NC 28557
CCC Aquaculture Program

Main Links
1. Aquaculture Blog
2. Aquaculture Home
3. Aquaculture Myths
and Pond Construction
4. NC Aquaculture Development Conference 2007
5. Fish Products: World's Leading Source of Protein
6. Aquatic Food Chain
7. Protozoa, their role and impact on Aquaculture, on parasitic-diseases of fish, crustaceans and mollusks.
8. Protozoan identification chart.

Unit 1: Warmwater Fish
* Culture techniques used in NC and elsewhere for the production of channel catfish, largemouth bass and other warm finfish species.
1. Channel Catfish I
2. Channel Catfish II
3. Channel Catfish, Notes
4. Largemouth Bass
5. Largemouth B., Notes
6. Tilapia Culture
7. Minnows and other Bait
* Modified for this blog from class notes composed by Dr. Doug Holland. For a list of available nationwide aquaculture schools and courses please visit Aquaculture Schools, pdf format.

Stages of Fish Development
Illustrations from Zooplankton of the Atlantic and Gulf Coasts, Johnson and Allen

Unit 2: Other Finfish
1. Hybrid Striped Bass Culture
2. Rainbow Trout Culture
3. Rainbow Trout Cltr. II
4. Yellow Perch Culture
* Modified for this blog from class notes composed by Dr. Doug Holland. For a list of available aquaculture schools, nationwide visit Aquaculture Schools, pdf format.

Zooplankton and Phytoplankton
• SEPMN, NOAA's network of volunteers, to monitor for toxic phytoplankton blooms.
A note on proper identification of algae and species.
Plankton comprised of Zooplankton (animal) and Phytoplankton (plant)
Zooplankton (animal)
• Centropyxis
• Cypridopsis
• Alonella, Waterflea
Phytoplankton (plant)
• Diatoms
• Volvox
• Euglena
• Merismopedia
• Closterium
• Desmids: Pleurotaenium
• Protococcus

Microscopy Videos
Salt Water Sample - 2/22/2007
Freshwater Sample - 2/23/2007
John Baka, instructor @ BCC Aquaculture, Photos and Videos - 2/24/2007
Volvox, Videos and Photos of Volvox, 2/28/2007

Other useful information
1. Basic Fish Anatomy
- a. Fish Brain
- b. Scent and Breathing
2. Constructing a CO₂ Reactor
3. pH Levels in Water
4. Lowering pH
5. Bio vs Mechanical Filter
6. Zoological Ranks and Suffix, Kingdom-Species
7. Dissolved Oxygen

NC Freshwater Fish
Brook Trout, Salvelinus fontinalis	Rainbow Trout, Salmo gairdneri (=Oncorhynchus mykiss)	Largemouth Bass, Micropterus salmoides	Bluegill, Lepomis macrochirus
Red-ear sunfish, Lepomis macrochirus	Common carp, Cyprinus carpio	Nile Tilapia, Oreochromis niloticus	Blue Tilapia, Oreochromis aurea
Black Tilapia, Oreochromis mossambica	Hybrid Striped Bass Morone saxatilis X Morone chrysops based on Species.
Bait Species
Golden Shiner Notemigonus crysoleucas	Fathead Minnow Pimephales promelas	White Sucker Catostomus commersoni	Goldfish Carassius autatus
Further Reading
Fundamentals of Aquaculture James W. Avault, Jr., Ph.D. Avault, 1996	Pennak's Freshwater Invertebrates of the United States Douglas G. Smith Wiley, 2001	Ecology and Classification of North American Freshwater Invertebrates Thorp, Covich Academic Press, 2001	Freshwater Algae of North America: Ecology and Classification Wehr, Sheath Academic Press, 2003
Zooplankton of the Atlantic and Gulf Coasts Johnson and Allen John Hopkins, 2005

Closterium

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NC Freshwater Fish

Bait Species

Further Reading