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Joined: Jan 2009
Posts: 10,458 Likes: 3
Ambassador
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Hall of Fame Lunker
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Ambassador
Field Correspondent
Hall of Fame Lunker
Joined: Jan 2009
Posts: 10,458 Likes: 3 |
I wanted to allude to this article you were working on but was I gave you my vow of silence. I can't wait for this to be published, though - are you covering shrimp, bivalves and other potential forage too? Will you make stocking recommendations, how to provide spawning habitat, and some sources for stocking? I would like to try spotfins at my place...need to know where to find them though. No shrimp or bivalves, that's a whole other article or two! Yes, we will be covering stocking recommendations, specific info for each species on spawning methods and how you an assist them and we'll cover the best locations to find each species.
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Joined: Jan 2008
Posts: 8,883 Likes: 117
Chairman, Pond Boss Legacy award; Moderator; field correspondent Lunker
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Chairman, Pond Boss Legacy award; Moderator; field correspondent Lunker
Joined: Jan 2008
Posts: 8,883 Likes: 117 |
Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau ![[Linked Image from i1261.photobucket.com]](http://i1261.photobucket.com/albums/ii582/teehjaeh57/I_subscribe_zps69249d43.gif)
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Joined: Mar 2005
Posts: 22,032 Likes: 483
Moderator Hall of Fame 2014  Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 22,032 Likes: 483 |
As GSH age they can be afflicted with an ovarian parasite, Pleistophora ovarie. This greatly reduces their spawning success. The parasite isn't found in all populations .... From my research, ... 3" GSH are usually second year fish in their first year of maturity and have not been affected by the parasite yet. Thought you might be interested in this new info. Journal of Aquatic Animal Health 2008; 20: 45-53 -- AFS Vertical Transmission of Ovipleistophora ovariae (Microspora) within the Eggs of the Golden Shiner Nicholas B. D. Phelps and Andrew E. Goodwin* Aquaculture/Fisheries Center, University of Arkansas at Pine Bluff, Mail Slot 4912, 1200 North University Drive, Pine Bluff, Arkansas 71601, USA Abstract Fertilized eggs collected from broodfish infected by Ovipleistophora ovariae were tested by quantitative polymerase chain reaction (PCR) and found to be positive for the O. ovariae genome at 7.77 × 102 to 3.26 × 107 copies per microgram of host DNA. Fry hatched from these eggs contained from 1.37 × 102 to 9.89 × 106 copies of the O. ovariae genome per microgram of host DNA. Surface treatments of fertilized eggs with 150 mg formalin/L (used by farms as a fungicide) or a 1.5% solution of sodium sulfite (which removes the adhesive egg matrix) did not reduce vertical transmission to fry. Treatment of eggs with a 10% solution of bleach or a proprietary commercial DNA denaturant did not reduce the number of egg-associated copies of the O. ovariae genome. Histology of ovaries of infected fish demonstrated spores within the oocytes. However, no spores were observed by histology in positive fry hatched from infected eggs. The PCR and histological demonstration of the presence of O. ovariae spores in oocytes and fry, and the failure of strong DNA denaturants to reduce egg-associated copies, give evidence that O. ovariae is vertically transmitted within eggs.Received: May 15, 2007; Accepted: September 15, 2007; Published Online: March 6, 2008
Last edited by ewest; 01/31/10 06:18 PM.
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Joined: Jan 2009
Posts: 10,458 Likes: 3
Ambassador
Field Correspondent
Hall of Fame Lunker
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Ambassador
Field Correspondent
Hall of Fame Lunker
Joined: Jan 2009
Posts: 10,458 Likes: 3 |
Dang Eric, that is some freaky stuff right there! I am not sure I know of any other examples of that in nature...
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Joined: Feb 2005
Posts: 4,025 Likes: 2
Lunker
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Lunker
Joined: Feb 2005
Posts: 4,025 Likes: 2 |
Most all I have seen and used look like APs GSH. Of course, they may have always been in spawning colors as they seem to reproduce constantly in the S.E. Sometimes maybe the body with less golden hue, but always the fins are orangey(is that a word?)
Last edited by burgermeister; 01/31/10 10:15 PM. Reason: sp
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