Want to see some Ostracodes.....

rfc · 02-01-2007, 12:53 AM

I recently took a few macro images of some amphipods and found other critters were in the frame. I wasn't sure what they were, and Melev at RC identified them as Ostracodes. To the naked eye they are smaller than a grain of sand.

" Ostracodes are very small animals which are common as fossils but are rarely large enough to be seen by the naked eye. They have been present on earth since the early part of the

Ordovician Period (490 to 443 years ago), and occur today in great numbers in lakes, rivers, and seas. Ostracodes prefer shallow water and live in vast hordes, crawling over the bottom or swimming near the surface.

They have two shells, one on each side of the body, so that some ostracodes look much like small clams. But the animal inside looks much like a shrimp or an insect with jointed legs and feelers. As the animal grows, it sheds its shells and forms a new pair. The shells may be smooth, or ornamented with pits, bumps, ribs, or spines."
http://www.isgs.uiuc.edu/fossils/ostracodes.htm

NIkon D200, nikkor 60mm micro

Regards

RFC

**Chiefmcfuz** · 02-01-2007, 12:56 AM

Cool

02-01-2007, 12:57 AM

sweet pics

aaron23 · 02-01-2007, 01:01 AM

wow your camera is ELITE jeez...

**jhale** · 02-01-2007, 01:25 AM

nice pics. that lens is super sharp, you can see the hairs on the amphipods legs and antena!

scarf_ace1981 · 02-01-2007, 01:30 AM

insane pics

masterswimmer · 02-01-2007, 01:33 AM

Hot damn, those are some sweet pix. My eyes don't focus as good as your picture taking abilities

swimmer

reefman · 02-01-2007, 02:11 AM

is that red coraline?

joseney21 · 02-01-2007, 10:21 AM

awsome pics!!!! we need to have a photo shoot off between pedro, J and Rfc

02-01-2007, 12:53 AM	#1
rfc Member Join Date: Mar 2006 Posts: 150 Reefer Ratings: (0) Friends: (0)	Want to see some Ostracodes..... I recently took a few macro images of some amphipods and found other critters were in the frame. I wasn't sure what they were, and Melev at RC identified them as Ostracodes. To the naked eye they are smaller than a grain of sand. " Ostracodes are very small animals which are common as fossils but are rarely large enough to be seen by the naked eye. They have been present on earth since the early part of the Ordovician Period (490 to 443 years ago), and occur today in great numbers in lakes, rivers, and seas. Ostracodes prefer shallow water and live in vast hordes, crawling over the bottom or swimming near the surface. They have two shells, one on each side of the body, so that some ostracodes look much like small clams. But the animal inside looks much like a shrimp or an insect with jointed legs and feelers. As the animal grows, it sheds its shells and forms a new pair. The shells may be smooth, or ornamented with pits, bumps, ribs, or spines." http://www.isgs.uiuc.edu/fossils/ostracodes.htm NIkon D200, nikkor 60mm micro Regards RFC __________________ Basic Setup : 29G, 15G Sump, 50lbs live rock, 250W DE 14K MH, 65W PC actinics, CSS 65 skimmer, Lifereef overflow, Mag 7 return, Fluval 205 (carbon), RODI setup, maxijet 1200, nanostream 6025 Last edited by rfc; 02-01-2007 at 01:05 AM.

02-01-2007, 12:56 AM	#2
Chiefmcfuz Big Nosed Lazy Reef Dummy Join Date: Sep 2005 Location: Westchester, NY Posts: 11,796 Reefer Ratings: (21) Friends: (30)	Cool __________________ Brendan Condo For Sale Northern Westchester Click here, My reef tank 24 gallon Aquapod

02-01-2007, 01:25 AM	#5
jhale paper bags are fun! Join Date: Oct 2004 Location: G.V NYC Posts: 15,161 Reefer Ratings: (43) Friends: (32)	nice pics. that lens is super sharp, you can see the hairs on the amphipods legs and antena! __________________ FS: Aquamedic dosing pump, MH250 ballast, wavemaker

02-01-2007, 01:30 AM	#6
scarf_ace1981 Senior Member Join Date: Feb 2006 Location: NYC Manhattan Posts: 4,856 Reefer Ratings: (67) Friends: (0)	insane pics __________________ Finch breeder

02-01-2007, 01:33 AM	#7
masterswimmer www.saltwatercritters.com Join Date: Dec 2005 Location: Orange County Posts: 9,184 Reefer Ratings: (86) Friends: (16)	Hot damn, those are some sweet pix. My eyes don't focus as good as your picture taking abilities swimmer __________________ House of Fish (845) 610-3114 www.saltwatercritters.com Serving all your saltwater critter and reef needs

02-01-2007, 12:57 AM	#3
DEEPWATER Guest Posts: n/a	sweet pics

02-01-2007, 01:01 AM	#4
aaron23 !THE ULTIMATE REEFER! Join Date: Feb 2006 Location: Roslyn, Long Island NY Posts: 2,244 Reefer Ratings: (68) Friends: (0)	wow your camera is ELITE jeez...

02-01-2007, 02:11 AM	#8
reefman Chairman of the board Join Date: Mar 2006 Location: queens Posts: 3,302 Reefer Ratings: (27) Friends: (0)	is that red coraline? __________________ GlobalLionDancer-Premier Internet provider of Chinese Southern Lion Dance Equipment!

02-01-2007, 10:21 AM	#9
joseney21 Senior Member Join Date: Sep 2004 Location: Bronx, New York Posts: 1,698 Reefer Ratings: (11) Friends: (18)	awsome pics!!!! we need to have a photo shoot off between pedro, J and Rfc __________________ I Frag Frags!!!!

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