Astounding Science Fiction Stories Vol 1

by Anthology

  "Nothing! That's the trouble. They're nice healthy specimens of terrestrial Ostrea lurida. We found a floating limb with about a dozen spat clinging to it."

  "Spat?"

  "Immature oysters."

  "Oh. Is that bad?"

  "Sure it's bad. I suppose I'd better explain," Bergdorf said. "On Earth an oyster wouldn't be anything to worry about, even though it produces somewhere between sixteen and sixty million fertile eggs every year. On Earth this tremendous fertility is necessary for survival, but here on Niobe where there are no natural enemies to speak of, it's absolutely deadly!

  "Just take these dozen spat we found. Year after next, they'd be breeding size, and would produce about three hundred million larvae. If everything went right, some three years later those three hundred million would produce nine thousand trillion baby oysters! Can you image how much territory nine thousand trillion oysters would cover?"

  I stopped listening right then, and started looking at the map of Niobe pinned on the wall. "Good Lord! They'd cover the whole eastern seaboard of Alpha from pole to pole."

  Bergdorf said smugly, "Actually, you're a bit over on your guess. Considering the short free swimming stage of the larvae, the slow eastern seaboard currents, poor bottom conditions and overcrowding, I doubt if they would cover more than a thousand miles of coastline by the fourth year. Most of them would die from environmental pressures.

  "But that isn't the real trouble. Niobe's oceans aren't like Earth's. They're shallow. It's a rare spot that's over forty fathoms deep. As a result, oysters can grow almost anywhere. And that's what'll happen if they aren't stopped. Inside of two decades they'll destroy this world!"

  "You're being an alarmist," I said.

  "Not so much as you might think. I don't suppose that the oysters will invade dry land and chase the natives from one rain puddle to another, but they'll grow without check, build oyster reefs that'll menace navigation, change the chemical composition of Niobe's oceans, pollute the water with organic debris of their rotting bodies, and so change the ecological environment of this world that only the hardiest and most adaptable life forms will be able to survive this!"

  "But they'll be self-limiting," I protested.

  "Sure. But by the time they limit themselves, they will eliminate about everything else."

  "If you're right, then, there's only one thing to do. We'll have to let the natives know what the score is and start taking steps to get rid of them."

  "Oh, I'm right. I don't think you'll find anyone who'll disagree with me. We kicked this around at the Lab for quite a spell before I came up here with it."

  "Then you've undoubtedly thought of some way to get rid of them."

  "Of course. That was one of the first things we did. The answer's obvious."

  "Not to me."

  "Sure. Starfish. They'll swamp up the extra oysters in jig time."

  "But won't the starfish get too numerous?"

  "No. They die off pretty fast without a source of food supply. From what we can find out about Niobe's oceans, there is virtually no acceptable food for starfish other than oysters and some microscopic animal life that wouldn't sustain an adult."

  "Okay, I believe you. But you still leave me cold. I can't remember anything about a starfish that would help him break an oyster shell."

  Bergdorf grinned. "I see you need a course in marine biology. Here's a thumbnail sketch. First, let's take the oyster. He has a big muscle called an adductor that closes his shell. For a while he can exert a terrific pull, but a steady tension of about nine hundred grams tires him out after an hour or so. Then the muscle relaxes and the shell gapes open. Now the starfish can exert about thirteen hundred grams of tension with his sucker-like tube feet, and since he has so many of them he doesn't have to use them all at one time. So, by shifting feet as they get tired, he can exert this pull indefinitely.

  "The starfish climbs up on the oyster shell, attaches a few dozen tube feet to the outside of each valve and starts to pull. After a while the oyster gets tired, the shell opens up, and the starfish pushes its stomach out through its mouth opening, wraps the stomach around the soft parts of the oyster and digests it right in the shell!"

  I shuddered.

  "Gruesome, isn't it?" Bergdorf asked happily. "But it's nothing to worry about. Starfish have been eating oysters on the half shell for millions of years. In fact I'll bet that a starfish eats more oysters in its lifetime than does the most confirmed oyster-addict."

  "It's not the fact that they eat them," I said feebly. "It's the way they do it. It makes me ill!"

  "Why should it? After all a starfish and a human being have a lot in common. Like them, you have eaten oysters on the half shell, and they're usually alive when you gulp them down. I can't see where our digestive juices are any easier on the oyster than those of a starfish."

  "Remind me never to eat another raw oyster," I said. "On second thought you won't have to. You've ruined my appetite for them forever."

  Bergdorf chuckled.

  "Well, now that you've disposed of one of my eating habits," I said bitterly, "let's get back to the problem. I presume that you'll have to find where the oysters are before you start in working them over with starfish."

  "You've hit the reason why I'm here. That's the big problem. I want to find their source."

  "Don't you know?"

  "I can make a pretty good guess. You see, we picked this limb out of the Equatorial current. As you know, Varnel Island is situated right at the western termination of the current. We don't get much littoral stuff unless it comes from the Islands or West Beta. And as far as I can figure the islands are the best bet. These spat probably came from the Piralones, that island group in the middle of the current about halfway across."

  I nodded. "It would be a good bet. They're uninhabited. If Harl wanted an isolated spot to conduct oyster planting experiments, I couldn't think of a better location. Nobody in his right mind would visit that place willingly. The islands support the damnedest assortment of siths you ever saw."

  "If that's where it is," Bergdorf said, "we can thank heaven for the natives' suspicious nature. That location may help us save this world!"

  I laughed at him. "Don't be so grim, Heinz--or so godlike. We're not going to save any worlds."

  "Someone has to save them."

  "We don't qualify. What we'll do is chase this business down. We'll find out where the oysters come from, get an idea of how bad things are and then let the Niobians know about it. If anyone is going to save this planet it won't be a bunch of Confederation exploration specialists."

  Bergdorf sighed. "You're right, of course."

  I slapped him on the shoulder. "Cheer up, Heinz." I turned to my appointment calendar and checked it over. There was nothing on it that couldn't wait a few days. "Tell you what," I continued. "I need a vacation from this place. We'll take my atomic job and go oyster hunting. It ought to be fun."

  Bergdorf's grin was like a sunrise on Kardon.

  * * * * *

  I brought the 'copter down slowly through the overcast, feeling my way cautiously down to the ground that radar told me was somewhere below. We were hardly a hundred and fifty meters up before it became visible through the drenching tropic rain. Unless you've seen it you can't imagine what rain is really like until you've been in the Niobian tropics. It literally swamps everything, including visibility.

  It was the Piralones all right.

  The last time I'd seen them was when I led the rescue party that pulled Wilson Chung and his passengers out of the Baril Ocean, but they were still the same, tiny deserted spots of land surrounded by coral reefs. We were over the biggest one of the group, a rounded hummock barely a kilometer in diameter, surrounded by a barrier reef of coral. Between the reef and the island a shallow lagoon lay in sullen grayness, its surface broken into innumerable tiny wavelets by the continual splash of rain. The land itself was a solid mass of olive-green vegetation that ended abruptly at a narrow beach.

 
; "Well, we're here," I said. "Grim looking place, isn't it?"

  "Whoever spoke of the beauties of tropical islands didn't have Niobe in mind," Bergdorf agreed. "This place looks like something left behind by a cow."

  I couldn't help the chuckle. The simile was too close for comfort. I tilted the rotors and we went down to hover about ten meters off the beach. Bergdorf pointed down the beach. I headed the 'copter in that direction as Bergdorf looked out of the bubble, intently scanning the waters of the lagoon. Finally he looked up with an expression of understanding on his lean face.

  "No wonder I missed them!" he murmured with awe. "There are so many that there's no floor of the lagoon to spot them against. They cover the entire bottom! You might as well set her down here; it's as good a place as any."

  I throttled back and landed the whirlybird on the beach. "You had your quota of vorkum?" I asked as Bergdorf reached for the door handle.

  The biologist made a wry face. "Naturally. You think I'd be fool enough to go outside without it?"

  "I wouldn't know. All I'm sure of is that if you're going to get out here, you'd better be loaded." I followed after him as he opened the door and jumped down to the ground.

  A small horde of siths instantly left the cover of the jungle and buzzed out to investigate. A few years ago, that would have been the signal for ray beams at fan aperture, but both Bergdorf and I ignored them, trusting in the protection of the vorkum. The beasties made a tactical pass at Heinz, thought the better of it and came wheeling over in my direction. I could almost see the disappointed look in their eyes as they caught my aura, put on the brakes and returned disappointed to their shelter under the broadleaves. Whatever vorkum did, it certainly convinced insects that we were inedible and antisocial.

  One or two ventured back and buzzed hopefully around our heads before giving up in disgust.

  "It beats me what they live on," Bergdorf said, gesturing at the iridescent flash of the last bloodsucker as it disappeared beneath the broadleaves.

  "As long as it isn't us, I don't give a damn," I said. "Maybe they live on decaying vegetable matter until something live and bloody comes along. Anyway, they seem to get along."

  Bergdorf walked the few steps to the water's edge. "I won't even have to go swimming," he said as he walked into the water a few steps, bent and came up with what looked like a handful of rocks.

  "Oysters?" I asked, turning one over in my hand.

  "Yep. Nice little O. lurida. About three years old, I'd guess, and just ripe for breeding. You know, I've never seen them growing so close to the shore. They must be stacked on top of each other out there a ways. There's probably millions of them in this lagoon alone!"

  "Well, we've found where they're coming from. Now all that's left is to figure out what to do about it."

  "We'd still better check Beta. They might possibly have reached there."

  "Not unless someone's planted them," I said. "You're forgetting the ocean currents."

  "No. I was thinking of planted areas."

  "Well, think again. You may know your biology, but I know Niobians. They're too suspicious to bring untried things too close to where they live. They've been that way as long as I can remember them, and I don't think that anything--even something as delightful as an oyster--would make them change overnight."

  "I hope you're right."

  "Oh, we'll check Beta, all right," I said. "But you can send a couple of your boys to do it. There's no sense in our wasting time with it."

  I heard the noise behind us before Bergdorf did. We turned in time to see four Niobians emerge from the jungle and glide purposefully toward us. The tribal tattoos on their chests identified them as members of Tovan Harl's commune. I nudged Heinz and murmured, "We've got company."

  The natives approached to within a few paces. They stood politely to leeward while one of their number approached. "I'm sorry," he said without the normal introduction, "but this is leased land. You will have to leave at once. And you will please return the oysters to the lagoon. It is not permitted to remove them."

  "Oh, all right," I said. "We're through here anyway. We'll visit the other islands and then be off."

  "The other islands are also leased property. When you leave I will radio the other guards, and you will not be permitted to land."

  "This is not according to your customs," I protested.

  "I realize that, Mr. Lanceford," the native said. "But I have given oath to keep all trespassers out."

  I nodded. It wasn't usual. I wondered what Harl had in mind--possibly a planetary monopoly. If that was his plan, he was due for a surprise.

  "That's very commendable," Bergdorf said, "but these oysters are going with me. They are needed as evidence."

  "I'm sorry, sir," the native said. "The oysters stay here."

  "Don't be a fool, Heinz," I interjected. "They're in the right. The oysters are their property. If you try to take them you'll be in trouble up to your ears."

  "But I need those oysters, Arthur! Probably the only adult oyster tissue on Niobe is on these islands. I need a sample of it."

  "Well, it's your neck." I turned to the native. "Don't be too hard on him," I said. "He's quite an important man."

  The Niobian nodded and grinned. "Don't worry, sir. He won't feel a thing. But I really wish to apologize for our rudeness. If conditions were different--"

  He paused and turned toward Bergdorf who was climbing into the 'copter with the oysters still in his hand.

  * * * * *

  I wasn't surprised that he didn't make it. In fact, I'd have been more surprised if he had. Heinz crumpled to the ground beside the ship. One of the natives came forward, took the oysters from his limp hand and threw them back into the lagoon.

  "All right," I said to the spokesman. "You fellows clobbered him, so now you can get him into the ship."

  "That is only fair," the native said. "We do not want to cause you any extra inconvenience." He gestured to his companions. Between them they got Bergdorf's limp body into the ship and strapped into one of the seats. They got out, I got in, and in a minute the two of us got out of there, going straight up through to overcast to get a celestial bearing for home.

  I kept looking at Bergdorf's limp body and grinning.

  It was nearly an hour later before Bergdorf woke up. "What hit me?" he asked fuzzily.

  "Subsonics," I said. "They should have scared you to death."

  "I fainted?"

  "Sure you did. You couldn't help it. They hit like a ton of brick."

  "They certainly do," he said ruefully.

  "They can kill," I said. "I've seen them do it. The Niobians generate them naturally, and they can focus them fairly well. Probably this quality was one of their forms of defense against predators in their early days. It's a survival trait; and when there are enough natives present to augment the impulses they can be downright nasty."

  Bergdorf nodded. "I know," he said. He stopped talking and looked out over the sun-drenched top of the overcast. "It looks like Tovan Harl wants to keep this oyster farm a private matter. In a way he's doing us a favor, but I'd still feel happier if I had one or two of those oysters."

  "Why do you need them?"

  "Well, I figured on getting a couple of the Navy's organic detectors and setting them for oyster protoplasm. You know how sensitive those gadgets are. There might be a small but significant change in oyster protoplasm since it has arrived here."

  "Well, you don't need to worry," I said. "I put one of your pets in my pocket before the natives showed up, so you've got what you need." I pulled the oyster out and handed it to him. It didn't look any the worse for its recent rough treatment.

  Bergdorf grinned. "I knew I could trust you, Chief. You're sneaky!"

  I laughed at him.

  * * * * *

  We arrived back at Alpha without trouble. I shooed Bergdorf back to Varnel with the one oyster and a promise that I'd back him up in any requisitions he cared to make. After that I checked up on the BEE busin
ess I had neglected for the past couple of days and, finally, late that night took one of the Base's floaters and drove slowly down the trail to Kron's village.

  While Earth-style civilization had done much to improve transport and communication on Niobe, it hadn't--and still hasn't for that matter--produced a highway that can stand up to the climate. Roads simply disappear in the bottomless mud. So whatever vehicular transport exists on Niobe is in the form of floaters, whose big sausage-shaped tires give enough flotation to stay on top of the ooze, and sufficient traction to move through the morass that is Niobe's surface. They're clumsy, slow and hard to steer. But they get you there--which is something you can't say about other vehicles.

  Kron's village had changed somewhat since I first visited it. The industrial section was new. The serried ranks of low dural buildings gleamed metallically in the glare of the floater's lights, glistening with the sheets of water that ran from their roofs and sides. The power-broadcast station that stood in the center of the village hadn't been there either. But other than that everything was pretty much the same as it always had been, an open space in the jungle filled with stone-walled, thatch-roofed houses squatting gloomily in the endless rain.

  The industry, such as it was, was concentrated solely upon the production of viscaya concentrate. It had made little difference in the Niobian way of life, which was exactly as the natives wanted it.

  It was odd, I reflected, how little change had taken place in Niobian society despite better than two decades of exposure to Confederation technology. Actually, the Confederation could leave tomorrow, and would hardly be missed. There would be no cultural vacuum. The strangers would simply be gone. Possibly some of our artifacts would be used. The atomic power-broadcast station would possibly stay, and so would the high-powered radio. Perhaps some of the gadgetry the natives had acquired from us would be used until it was worn out, but the pattern of the old ways would stay pretty much as it had always been. For Niobian culture was primarily philosophical rather than technological, and it preferred to remain that way.