Prologue:
Every year we spot a few female crayfish "in berry"
(carrying eggs). This particular female was spotted in a tank of feeder
crayfish March 2, 2011. She came to us from Chicago. Illinois
boasts 23 species of crayfish as opposed to Iowa's eight. Most of both
states' species look very similar regardless of the specific species.
I'm calling her a local gal because we live just across the Mississippi
River from Illinois. Nice claws on this particular gal.
LA
3-inch female Illinois crayfish, March 2, 2011.
The Female:
The strongest clue as to her sex in this case is the
clutch of eggs she carries under her tail. She holds the eggs in the
swmmerettes (like tiny legs) under her tail. She uses some sort of
quite effective underwater glue to hold them.
LA
3.5-inch probable male from same 10-gallon tank. Much
bigger claws.
The Male:
Even bigger and better, the adult male of the species
is a formidable predator. He will eat nearly anything organic.
Crayfish make great scavengers in your aquarium. However, they do present
a constant threat (day and night) to bottom dwelling and sleeping fish.
This particular gentleman currently presides (in relative peace) in a 55 with a pair of red
dragon flowerhorns.
LA
His roommates sort of leave him alone and vice versa.
LA
He has no problem defending himself.
LA
Female again for comparison. We bribed her to the front with a Hikari pellet.
The Honeymoon:
Unfortunately, we were not present at the actual
consummation of their propagation of the species. Here's a couple of
stunt doubles. They do this all the time in the movies.
LA
LA
Not disturbed by bushwhackers.
The Results:
Usually we see from 150 to 200 eggs from a good sized
female. We did not count this particular litter. It's hard to
see them all even when she's not waving them around to aerate them.
But that approximation looks about right.
LA
Closer look at her eggs. Usually red eggs are slower hatchers (if they
hatch at all).
LA
Dropped into a 3.5 gallon homemade aquarium for closer observation.
LA
She checks out her new home, approves, turns around, and backs her butt into
it.
LA
Formidable opposition to unwanted visitors.
The Maternity Ward:
We initially migrated her to a small tank.
Crayfish don't need much room. If you give them a nook or
cranny, they will almost instantly make it their private homestead.
Tragedy:
After some 45 years, my carefully crafted homemade
tank decded to leak -- about two inches per hour. So, we pulled her
out, along with her 2-inch homestead and migrated her to more spacious
quarters. It's much easier to move a crayfish in a flower pot.
Like the Wallenda brothers, no net required.
LA
New Home:
She walked around her new 10-gallon tank to check it
out. S
LA
Sitting atop an anacharis frond.
Food Comments:
Normally we feed our "food crayfish" deceased feeder
goldfish. Third grade teachers feed their crayfish elodea (which we
call anacharis) because it's easier for them. So, I gave her some
anacharis.
LA
Chomping a bit.
LA
While she's walkin about, she continues to aerate her eggs.
LA
Soon enscoced in her new old home.
LA
But sadly, not asmany eggs under her tail.
LA
So we repaired her tank and re-housed her over new gravel, which she found
quickly.
LA
Scoped it out.
LA
And moved right in and made her self at home.
LA
LA
© 2011
LA Productions
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