Posts Tagged ‘life cycle’

The Post – Extra! Scarlett O’Hara is Pregnant

February 17, 2008

Well, that is life for you. One minute you’re choking in the ER, the next maybe we’ll be surrogate grandparents for our fiddler crabs?

Again, it is my husband, the one who made fun of my fiddler crab project, who notices changes in the fiddler crab tank.

We have noticed Scarlett O’Hara on occasion, seeming interested in Admiral Byrd. Admiral Byrd of course, ALWAYS waves his claw even when no one is around. My husband explained this is a guy thing – you always stand around looking cool, just in case. Well, apparently things happen when the lights go out.

For the last 2 days my husband has mentioned, with concern in his voice, that Scarlett O’Hara has been climbing all the way up the water filter, almost to the top of the tank, and has been hanging out up there. We just thought she wanted to be queen of all she surveyed and liked being up high.

Today he looked at her and said: “I think Scarlett is going to have babies! Do fiddler crabs carry their eggs on their abdomen?” I glanced at her and there was this wad of brownish spongy stuff tucked against her abdomen, underneath her mandibles.

Sure enough, a glance at a web site of the Fiddler Crab Life Cycle, shows pictures of pregnant females carrying hundreds of thousands of fertilized eggs on their abdomen. The pictures look just like Scarlett O’Hara. So, she’s pregnant!!!!

Now my understanding from something I read, was that female fiddler crabs burrowed down into the sand 23 inches or so, to lay their eggs. So I felt assured we would not be contending with “babies.” In fact, maybe that’s why Scarlett’s been climbing on top of the water filter. Maybe she’s been looking for someplace deep to lay her eggs.

However this same website on the fiddler crab life cycle indicates that female fiddler crabs RELEASE their fertilized eggs into the water and they float around as plankton. When they molt and get big enough, then there’s JUVENILE CRABS running around the tank.

My husband’s reaction was almost identical to 20 years ago when I invited him to have lunch with me at the hospital one weekend when I was working, so I could tell him the results of a certain pregnancy test I had just run: “Oh my God.” My husband said, “I’m not ready to be a grandfather yet, especially to a few hundred thousand fiddler crabs . . . ” But you and I both know, if there’s babies in the tank, he’ll be watching over them and concerned about them.

Now another site I found, About.com’s Keeping fiddler crabs as pets, (which by the way is a GREAT summary of how to raise fiddler crabs in general AND has instructions on setting up a brackish water tank) indicates it’s near to impossible to raise the babies in captivity. Apparently the babies need to go out into deep ocean water to grow then return to the brackish water estuary when they are older.

Well we shall see. Who knows? We may yet have BABIES in the tank!!!!! 🙂 So, the $4 fiddler crabs, with the >$100 of support gear so I could establish a brackish water tank so they wouldn’t die, have apparently not only not died, but thrived! Now we may need ANOTHER TANK so the thousands of babies have a home. Anybody want to buy some fiddler crabs? I’ll keep you posted on the progress of the pregnancy.

Stay tuned this week for pictures of the pregnant mom!

The Post – Admiral Byrd was NOT Worshipping Me or The Aquarium Light

February 11, 2008

Over the last 2 days my husband noticed that Admiral Byrd has been spending a LOT of time, meaning almost ALL of his time, up on top of the gravel hill or the decorative cave rock, or the live rock, or just about anywhere else in the tank, waving his claw. He looked so funny up on the cave rock. He seemed to be staring up at the aquarium tank light, waving his claw as if paying homage to a god. We figured either he held the aquarium light or my hand in high esteem.

My husband has joked that he thinks the crabs go inside the live rock so much because it’s actually their holy site. He thinks they’ve cobbled together a crude altar made of gravel and on the altar they’ve fashioned a shrimp pellet image of their deity, the hand that feeds them . . . basically mine. As he put it, imagine that every day a hand comes down out of the sky and places steak or shrimp or pancakes in front of us. That’s what it must be like every time my hand drops algae or shrimp pellets near them.

In any event we weren’t sure why Admiral Byrd decided to spend an entire day paying homage to me or the light. Why all of the sudden? There’s been nothing new going on in the tank otherwise, all three crabs have been actually pretty placid, out and about feeding, and generally happy. Was this some sort of designated crab “Holy Day” that just happens to coincide with Lent?

As it turns out, alas, neither the aquarium light nor my hand are the object of Admiral Byrd’s devotions. Melanie Hamilton is.

From the Fiddler Crab page on the Chesapeake Bay Program’s bay restoration site:

“When looking for a mate, he stands near the edge of the burrow, often alongside a string of other males and their (similarly well-maintained) burrows, while the females, returning from foraging, walk past. The male waves his large fiddler claw until he attracts the attention of an interested female, who then stares at him for a short period.. The male resumes his claw-waving, and if the female remains receptive, the male runs toward her, then runs back to his burrow, and repeats this motion several times until she either moves on or follows him to the burrow. ”

Apparently, mating behaviors take place not just when the female forages, but also when she molts. I happened to notice this pale, upside down body lying under the water filter this morning and immediately my heart hurt. I thought “Oh no! Melanie Hamilton died!” But not so. Looking closer, I saw that it was the pale ghost of Melanie Hamilton. It was that eerie translucent white, like Scarlett O’Hara’s was, though much more petite given that Melanie Hamilton is so dainty. Melanie Hamilton sat right behind it. I would have gotten pictures for this blog but she had tucked herself and her tiny ghost so far under the water filter that I could not get a shot. If only I had fiber optic cable, maybe I could get footage! I have concluded that the fiddler crabs have designated the “under the water filter space” as the “molting place.” All 3 have used it now. I think it has enough stretching room to shrug off the old shell, but is sheltered enough to keep everyone else away while their new shell hardens.

Admiral Byrd of course, was well aware of events in the tank. He was standing just a few inches from the water filter hoping to catch her eye. Alas, while Admiral Byrd is a true romantic and his efforts were truly heroic – I mean he has to be exhausted after almost 24-hours straight claw-waving – Melanie Hamilton is having none of it. She has turned her back on him and remains secluded under the water filter.

But anyway, the mystery is solved. Admiral Byrd doesn’t give a darn about the tank light or the hand that feeds him. He apparently can sense the approach of “molting” and was doing the crab Valentine’s Day equivalent of serenading his lady.

Sorry no pictures, though. I told my husband if he ever decides to spend money on expensive jewelry or clothes for me, I would prefer one of those borescopes like they use for colonoscopies. That would work GREAT in the tank for closeups of everybody! 🙂

Coming up this week:

Now that you’ve gotten to know me a bit – a cross between sea life maniac and soulful – I’ll start to introduce some of the projects I’m working on. I’ll share what I’ve done, what I’m doing and where I see myself going. Children’s writer and illustrator, Uri Shulevitz, described three stages of a writer’s development at a conference about 12 years ago. I’ve kept them as a kind of road map in my development and will use them to describe what I’m doing.

Also to come, a Writer’s bio page of what I’ve already written.

Happy Monday!