Garssections 2011 - WARNING: Graphic Images

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E_americanus

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Aug 14, 2004
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this is how i spent the vast majority of our school's "spring break". for the second research chapter of my dissertation i needed to determine/compare population structures of spotted gars, including extracting ageing structures from samples collected over the past few years.

more pics to come, but this gives you an idea of the road ahead...
 
Cool stuff, Solomon, but it kind of sucks that you spent most of your "spring" break with dead gars instead of living gars. I'm interested to see what you find out from these dissections. :popcorn:

I spy that classic Ichthyology shirt with the gar on it. :thumbsup: Speaking of which, I still have that spotted gar head from that dissection that we did in Ichthyology.
 
haha looks like fun sol!! how do u stand the smell? can't wait for more pics & results!
 
Wiggles92;4947897; said:
Cool stuff, Solomon, but it kind of sucks that you spent most of your "spring" break with dead gars instead of living gars. I'm interested to see what you find out from these dissections. :popcorn:

I spy that classic Ichthyology shirt with the gar on it. :thumbsup: Speaking of which, I still have that spotted gar head from that dissection that we did in Ichthyology.

haha, yeah, i definitely LOVE that shirt! i was very excited when i found out it was the class shirt for that year (and i also have that newer version from this year's -your year's- class). back when i took the class the fish on the shirt was a buffalo! not nearly as cool, however, it was the first year of the Ohio Northern gar truck...i still aspire to own that vehicle some day (told Keiser this last time i was down there :)).

as for dead gars and spring break...i spent plenty of time dealing with the dozen (live) Cubans, ~50 juvenile spotteds, and all the other gars back at The Tank...so plenty of live fishes too. i should note that i'm "deferring" my spring break to this coming Thurs-Monday - heading to Puerto Rico with the g/f...hmmm, we're not too far from Cuba...

xander;4947911; said:
haha looks like fun sol!! how do u stand the smell? can't wait for more pics & results!

funny you should mention the smell...gars are very likely the smelliest of freshwater fishes (and highly competitive in the SW class too...i just don't have as large a sample there). they smell quite strong when live, but when dead and thawed and cut open the bloody smell can be nearly overwhelming! just kind of suck it up (or not suck it up) and press onward. there are specific areas we have to carefully dissect to extract the appropriate structures, so it can be somewhat challenging and tedious work!

i'll post some examples of the structures and resulting ageing at some point in the near future. i did a demo of the otolith extraction for Ryan's ichthyology class this past fall (we went to the same undergrad, and i go back and help out in the summer field session).

busterbrown;4947926; said:
Sounds like a pretty class but it does suck you had to do it over spring break. Its better than organic chemistry though

haha, wasn't a class...it's part of my research (they do examples of this sort of extraction in one of the classes, but they use much easier fish, usually a freshwater drum. ...and it is better than organic chemistry...took my full year of those courses too back in the day!!! :irked:

--solomon
 
Pretty cool. Nice sized Spotteds too.
 
Can't see the pictures =( But this sounds very neat. wondered what a Gar looked liek on the inside.
 
Otolith extraction is fun isn't it? I had to do collect otoliths from every fish I sampled when I worked as a government observer on commercial fishing vessels out of Alaska in 2008. Its fun chopping through 4" of skull to try to find a pair of bones that are 1/2" across and 1/16" thick floating in goo as nasty as anything you've seen...


And Sol, I don't think there's ANY freshwater or saltwater fish in the world that can compare in nastiness with the giant grenadier... disgusting fish...
 
Looks like you had fun...what did you have for lunch that day? Lol!
 
Madding;4948472; said:
Pretty cool. Nice sized Spotteds too.

yeah, those were good-sized fish, but 99% of them were males...the females are actually quite a bit larger - will try to dig up some pics of them for comparison. we dissected at least one female that definitely had a ton of egg (probably for the next spawning season though).

MonsterMinis;4948630; said:
Can't see the pictures =( But this sounds very neat. wondered what a Gar looked liek on the inside.

will add more pics in the near future to show some of the internal anatomy, the gas bladder is really pretty cool. i think i posted some shots of our 2009 Garssections in a thread as well.

Conner;4948667; said:
Otolith extraction is fun isn't it? I had to do collect otoliths from every fish I sampled when I worked as a government observer on commercial fishing vessels out of Alaska in 2008. Its fun chopping through 4" of skull to try to find a pair of bones that are 1/2" across and 1/16" thick floating in goo as nasty as anything you've seen...


And Sol, I don't think there's ANY freshwater or saltwater fish in the world that can compare in nastiness with the giant grenadier... disgusting fish...

hey Conner, yeah the otolith stuff is pretty crazy. i would say, however, that i WISH they were 1/2" across! these otoliths are a good amount smaller...i haven't dealt with SW fish otos, but i do know the shapes and sizes are quite variable. trout/salmon are a major pain because the structures are tiny for even large fish.

i was also extracting branchiostegal rays, which we also used for age comparison. i haven't messed with giant grenadiers, but i'd definitely be willing to try as fish smells really don't phase me any more...it's more the frustration if the oto goes into the brain case!!! (as i am sure you know :irked:)

benzjamin13;4948698; said:
Looks like you had fun...what did you have for lunch that day? Lol!

i think i had a burrito...or garrito...haha. i've got a pretty strong stomach so it doesn't bother me any more, but some of the coagulating blood smell is really something to behold, haha!--
--solomon
 
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