can anyone ID this phytoplankton?

ahuacatlan · 04-07-2007, 06:46 PM

I know they're all common species,
such as tetraselmis, t-iso, etc.

Thanks!

ahuacatlan · 04-07-2007, 06:57 PM

better pics
in same order as abouve

**Seahorsedreams** · 04-07-2007, 07:03 PM

Are they motile or non-motile?

ahuacatlan · 04-07-2007, 07:10 PM

1st pic: seem to be non-motile
2nd pic: were not really moving but appear to have twitching flagella (perhaps slide cover inhibited movement)
3rd pic: motile

**Seahorsedreams** · 04-07-2007, 08:47 PM

K, do ya have an order of size? And are you saying one is an iso an done is a tetra and you are trying to figure out which is which... plus an unknown third?

wildeone · 04-07-2007, 09:38 PM

I am cool with flagella, but what is motile?

ahuacatlan · 04-07-2007, 11:20 PM

possibilities would be:
tetraselmis
t-iso
nanno

2 and 3 could even be the same species, I'm not sure

wildeone, if they have beating flagella, doesn't this mean they are motile? Maybe I am misunderstanding

**Seahorsedreams** · 04-07-2007, 11:22 PM

Flagella is the appendage... motile is the.... movement. Are they motile means do they move.

ahuacatlan · 04-07-2007, 11:24 PM

okay,
I think I figured it out,
#1 is nanno
and #2 and #3 are both t-iso

because #2 and 3, although slightly different, both seem to have that red dot (nucleus?) in the center of the cell and have similar flagella

**Seahorsedreams** · 04-07-2007, 11:25 PM

Quote:

Originally Posted by ahuacatlan

possibilities would be:
tetraselmis
t-iso
nanno

2 and 3 could even be the same species, I'm not sure

Then I am going to go with nanno and tetra.

**Seahorsedreams** · 04-07-2007, 11:26 PM

LOL... posting at the same time... I agree.

ahuacatlan · 04-07-2007, 11:26 PM

yes but if they have beating flagella, then they would move (if it weren't for the weight of the cover slip on top of them), thus being motile right?

ahuacatlan · 04-07-2007, 11:27 PM

ok thanks,
so you think tetra instead of t-iso Renee?

**Seahorsedreams** · 04-07-2007, 11:27 PM

Oh wait now... you think it is iso?

**Seahorsedreams** · 04-07-2007, 11:28 PM

LOL... post tag. Iso is motile, I thought.

But then then there is the red dot..... I'm not sure if tetras have a red nuclues or not but iso does I believe. Need to go get my book... hold on.

**Seahorsedreams** · 04-07-2007, 11:37 PM

Iso is motile but is has a red eyespot.

**Seahorsedreams** · 04-07-2007, 11:40 PM

tetra has a red eyespot as well. How many flagella are there... I thought it was four but maybe it was movement.

ahuacatlan · 04-07-2007, 11:43 PM

I looked again and there seem to be 2 flagella

**Seahorsedreams** · 04-07-2007, 11:44 PM

well.... dead/dying iso?

ahuacatlan · 04-08-2007, 12:12 AM

yea that could be,
they were sitting in the slide for a little while

ok
I'm pretty sure its nanno and t-iso

thanks for your help everyone!

ahuacatlan · 04-08-2007, 02:12 AM

Seahorsedreams,
is the book you use to ID phyto a good one? what is it called?