Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 04-14-2004, 04:15 PM   #1
Aquarium Advice FINatic
 
Join Date: Jan 2004
Location: British Columbia
Posts: 754
Is this macroalgae reproduction?

Look at the attached photo of my Halmedia (sp?). This happened overnight and has affected about 1/2 of the population of the algae. Is this reproduction?

This is supposed to be bad because it suddenly releases the nutrients, right?

This could have been prevented by more active pruning?

You can see some healthy algae in the background...upper right. for comparison. The algae disappears down to it's calcium skeleton and looks like it has broken down into individual green cells.
__________________

__________________
Brad is offline   Reply With Quote
Old 04-14-2004, 06:05 PM   #2
AA Team Emeritus
 
reefrunner69's Avatar
 
Join Date: May 2002
Location: Cedar Key, FL
Posts: 1,663
t could be going sexual, although it is not unheard of...it is rare for this to happen to halemida. I personally would remove any that is going white like that, the marbling is what is bothering me, the ends that have bleached aren't a big deal but the marbling suggests (to me anyway) that it might be on it's way.
__________________

__________________
Kevin

Visit Nature Coast Photography
reefrunner69 is offline   Reply With Quote
Old 04-14-2004, 06:23 PM   #3
Aquarium Advice FINatic
 
Join Date: Jan 2004
Location: British Columbia
Posts: 754
macroalgae

I had a small one do this about 1 week ago, near the same spot in the tank. This time, there are 3 "plants", all are much larger, doing it.

The entire algae changes at the same rate, over the entire surface of the entire algae. It's gone from perfectly healthy looking to this in less than 12 hours. In 12 more hours, it will be a completely white skeleton. Meanwhile, other Halemida in the tank are unchanged.

I'm going to take a look at some of it under the microscope and I'll let you know if I see anything. I'm sure it will be interesting, but I will have no idea of what I'm looking at!
__________________
Brad is offline   Reply With Quote
Old 04-16-2004, 12:36 AM   #4
Aquarium Advice FINatic
 
Join Date: Jan 2004
Location: British Columbia
Posts: 754
Found online...

Halimeda spp. reproduce sexually from time-to-time and when it does gametophites (or game-
tangia depending on the species) grow on the outside segments. This process kills the original
plant since it takes nutrients from it to do so. Although sexual reproduction of this algae in our
tanks is pretty rare, but if it happens one can expect most of the plants to turn white and
crumble away as they die.

This is very descriptive of what has occurred in my tank.
__________________
Brad is offline   Reply With Quote
Reply

Tags
algae, macroalgae, reproduction

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Unauthorized reproduction plecoperson Freshwater & Brackish - Breeding 4 07-07-2008 10:46 AM
Aptasia Reproduction JonSolo Saltwater & Reef - Getting Started 1 04-11-2005 04:26 PM
Duster reproduction sicklidkid Saltwater Reef Aquaria 4 07-01-2004 08:36 PM
anemone reproduction? Pisces Saltwater Reef Aquaria 3 03-13-2004 02:02 AM
Macroalgae supplements for MacroAlgae Tank? Electrobes Saltwater & Reef - Getting Started 7 12-07-2003 09:49 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 12:18 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.