I caught this fish in the summer, using a fly rod along cattails near a boat dock. The lake is a small body of water in Texas, less than 300 acres. TPWD has an active stocking program there for "Operation World Record" largemouths, though I haven't seen any thing on TPWD website about stocking forage fish. There is emergent vegetation, but I've never seen any submerged vegetation, and the bottom is mostly rocky. I've seen mussels there, but my understanding is that glossidia parasitize gills, not muscle tissue. Anyway, if you look at the base of the tail, there's a golf ball sized lump there. It wasn't notably different (harder or softer) to the touch than the rest of him.
So any idea what this could have been? I released him, so I didn't cut it open and look.
http://www.facebook.com/media/set/?set=a.3109223941910.136341.1603684781&type=3&l=9b7927f65b
Does anyone know what this might be? Parasite?
Started by
Guest_benmor78_*
, Feb 25 2012 02:16 AM
7 replies to this topic
#2
Guest_ashtonmj_*
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Posted 25 February 2012 - 08:09 AM
What kind of tissue glochidia attach to is largely a function of what type of host infection strategy they use and their subfamily/tribe. Lampsilines and Amblemines have glochidia that are very small with active host attraction strategies or conglutanates, therefore they typically attach to gills. Anodontines have large glochidia that are passively attached by contact, thus fins and soft epithelial tissue are usually where they attach. Glochidia are in the micron range too and it isn't really possible to see what you're referencing as a lump.
#3
Guest_CreekStomper_*
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Posted 25 February 2012 - 01:29 PM
it isn't really possible to see what you're referencing as a lump.
The golf-ball sized protrusion where the body narrows into the tail? Can't miss it.
OP, I've seen this as well, but can't help identify it. So you get a courtesy bump.
Josh H
#5
Guest_sam585_*
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Posted 23 July 2012 - 10:41 PM
One of my Bluegills had such a lump in the exact same spot, aswell as another one with it on the side of its body.
I thought them to be tumors of some sort, they died within a month of me noticing the lumps. I cut one open the flesh was extremely mushy like cutting open into a rotten peach. No information was availiable on the issue.
I belive the issue to be a secondary illness as a result from fishes suffering from bacteria infections subsequently from a poor and inefficent diet. Additionally it might be a result from pollution since my gills came from Fresno, one of the most polluted cities in America.
I thought them to be tumors of some sort, they died within a month of me noticing the lumps. I cut one open the flesh was extremely mushy like cutting open into a rotten peach. No information was availiable on the issue.
I belive the issue to be a secondary illness as a result from fishes suffering from bacteria infections subsequently from a poor and inefficent diet. Additionally it might be a result from pollution since my gills came from Fresno, one of the most polluted cities in America.
#6
Guest_ja586_*
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Posted 03 October 2012 - 11:42 PM
Not that I really know much of fish specifically, but it looks like a seroma. If its was clear mush on the inside that's defiantly what it is. It could also be a seroma that got infected or got large enough to rupture blood vessels (rare, but who knows) if the fluid looked bloody.
Just a thought.
Just a thought.
#7
Guest_Auban_*
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Posted 04 October 2012 - 05:11 AM
i have seen something like that in several animals, from fish to lizzards to cows. probably a seroma. its basically a lump of tissue that holds fluid. the name seroma doesnt really tell you much. they can be caused by all kinds of things. when i was working for the university of florida, i dissected a seroma with a fibrous capsule that a vet gave me, from a cow, that had presumably been caused by a vaccination site that had become infected. if it is a seroma (which are quite common) it could be caused by nearly anything from a parasite to an old wound. if the tail curved in the opposite direction, however, it could just be a deformity in the spine. i have seen this quite often in live bearers, mostly fish that have been inbred to the Nth degree. a fish that looks like it has a tumor from birth just has a warped spine. it happens.
my guess though, is that it is a cyst or seroma caused by a present or past infection of a parasite. it happens. a lot...
my guess though, is that it is a cyst or seroma caused by a present or past infection of a parasite. it happens. a lot...
Edited by Auban, 04 October 2012 - 05:15 AM.
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