For the past few days, Pete, Benja, and I have been doing our best to collect poop. It’s one of the missing pieces to the nutrient puzzle in Lake Tanganyika, and a top priority this season has been to figure out just how much nitrogen and phosphorus get released when these guys decide to drop a load.
And we're off! Our morning commute is pretty sweet. |
In addition to figuring out what it’s made of, Benja is also
interested in poop rates, which
requires catching fish, putting them in a ziplock bag, handing them a newspaper
(just kidding…), and timing just how long it takes for nature to take its
course.
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This adorable little eretmodus never did poop. |
Luckily my fish-catching skills
have multiplied exponentially, and I’ve spent a fair amount of time manning the
gillnet for this project task.
Well hello! |
That leaves Benja with the all-important duties
of shore guy: processing fish (weights, lengths, time-in/time-out, waiting for
poop to settle, etc.), guarding our lunches from the band of Vervet monkeys inhabiting
the area, and working on an even tan.
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They're cute...right up until they run into the trees with your popcorn. |
Each fish gets at least 30 minutes in the mini-toilet, but
for some fish, that’s not long enough. The algivores poop constantly, but the
piscivorous fish need much more time (sometimes upwards of 6 hours, it turns
out. No judgement...).
We’re also collecting what’s come to be known in our little circle as “wild poop." Basically Pete swims
around, catches a fish in the act, and collects the fresh droppings into
a turkey baster. It gets handed off to us on shore, put in a pre-weighed vial,
and eventually (back in Madison) prepped for CNP analysis.
Pete returns with some fresh poo in hand. |
The shore handoff! (We're making good use of the new GoPro ;)) |
Today I caught fish all day, and while Ben waited for the last
of our bagged fish to poop, I thought I’d grab some field footage with our new
GoPro video camera. We’d heard rumors recently that a crocodile had been
spotted in this particular part of the lake, but none of us really believed (or
rather, wanted to believe) it was
true.
BUT THEN I SAW A CROCODILE!!!!!!!!!!
"Holy shit, Benja...I just saw the crocodile!!" |
It’s hard to summarize the thoughts that ran through my head
in the course of a milli-second, but here, in no particular order are a few…
* That’s not a fish… Holy shit.
* SWIM AWAY.
* STAY WHERE YOU ARE. GET GOOD FOOTAGE.
* It’s ok because you saw how to survive a croc attack on
NGC once upon a time…
* Is its mom nearby?
* SWIM AWAY.
* Should I be worried? Should I be in the water? Shore’s probably
not safe either? Crocs are ambush predators, right?? It’s not too big…
I eventually high-tailed it to shore and told Ben the tale
of my epic encounter. I’d put him at just over a meter or so, and I’m still not
sure how I feel about this swimming-with-crocodiles business. Something about
it doesn’t seem safe…
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