Okay, as promised here are the fish that I am actually gathering data on. I'ss start with the most common suckers, then work my way up to the fish that I am actually studying.
Notchlip redhorse (Moxostoma collapsum)
Most common sucker we encounter. Generally found in all habitats in the river except fast shoals. We've caught 2029 of them so far.
A decent sized male - you can look at the large anal fin. Females have much shorter, rounder anal fins.
Spotted sucker (Minytrema melanops)
Second-most common sucker - caught 1003. Found nearly everywhere in the river. Most are in the slower portions, but some of the population remain in shoals throughout the year. This is a pretty young fish with some sort of deformity in the scale patterns. I have seen very few fish with this spiral-like pattern on the scales.
Brassy jumprock (Scartomyzon sp. cf. lachneri)
Very cool, very strong fish. Mostly inhabits the fast-flowing areas. Can get much larger than the other striped jumprocks (below). We've caught 267 of these. Here are several photos showing the differences appearance.
Very large, breeding male
His anal and caudel fin showing his large breeding tubercles.
Large female, ripe with eggs. Notice the difference in anal fin shape/size.
Young male. Dark pigmentation on the fins, and beautiful turquoise hue.
One of my personal favorites:
Striped jumprock (Scartomyzon rupricartes)
They stay small (usually max around 11''), and inhabit very fast waters in the shoals and rocky areas. I have one of these in my stream tank ATM. We've caught 36 so far.
Large male in great shape!
Large, plump female
Carpsuckers (Carpiodes sp.)
Very few of these. We only found them in the spring spawning last year.
This may be a carpsucker (Ca. cyprinus)
And a breeding male.
This is an undescribed species of carpsucker (Ca. sp. cf. vellifer)
The fish that pays the bills:
ROBUST REDHORSE (Moxostoma robustum)
We've only caught 3. So far they have all been caught in the tailrace of the dam. So very fast, deep, turbulent water over large shoals.
This is why they call them robust:
Breeding male. Very beat up from spawning. Large tubercles on the snout, anal and caudal fin.
Weighing, measuring, checking for coded wire tags, PIT tags, and issuing a new PIT tag.
Some pictures from summer 2010 from Marathon, Florida Keys. Did a bit of snorkeling / free diving on an old barge wreck. Barge was about 24 feet below, but I treated myself to some nice free-diving fins as an early b-day present, so getting down quickly wasn't too bad. Saw an unbelievable amount of fish (numbers and diversity). I cannot possibly name them all, but had everything from the small snappers (schoolmaster, yellowfin) to sergeant majors, Bermuda chubs, grouper (black and jewfish), various wrasses, parrotsfish, triggerfish, pipefish, damselfish, hogfish, tomtates, blah blah.
Oooh my gosh. Snorkeling is definitely one of those things on my list of things to do before I die. How cool that you have an underwater camera, though!! I'd just have to remember that stuff in my head... _________________ - Rachel
rales, the camera I have used in all these pictures in this thread (and all my other thread) is an Olympus Stylus 1030 SW. I got it back in December 2008 and has been a greeeeaaat camera. It stayed wet nearly the entire summer of 2009 during snorkeling surveys. These things are incredible and are warranted to 6m depths, and 6 foot drops.
I was a bit nervous about the above pictures, b/c the camera needs a housing if it goes below 6m, and I was right around 22-24 feet deep in this spot.
My dad and sister now have the latest and greatest Stylus Tough and they are pieces of work! Not sure of the specs, but these cameras are Great point and shoot cameras. Mine has been in the water, rain, snow, sand etc. and nooo problems . I'll have to share some freshwater snorkeling pics sometime soon.
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