This is qeustion in marine biology
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Meroplankton is a type of zooplankton. Meroplanktons [larvae are planktons while adults are nektons or benthos] - Supraneutsons  use the surface tension of the water to walk over the surface. Their feathery appendages are also water replent. Planktons abound in estuaries, upwelling regions and are patchy in that they concentrated in zones of convergence.
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Simple Biology, ask your doctor.
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k, the carrying capacity, is measured by population surveys if you assume the population is already at k.  If it's not at k, then you'd have to do some work such as protecting an area against harvest and determining the population of that area every year then determine k for the whole bay based on that.  Actually it's pretty hard to know k in real life, it's more of an abstract guess by ecologists.
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I know some guys that work for NOAA and do fisheries statistics on the open water in the Pacific.  They ride along on commercial fishing vessels and count the different types and varieties of fishes and then plug their numbers into a preformatted excel program that has been designed to estimate population sizes based on biostats of the fishes (weight, age, color, etc).  I'll have to ask them next time I see them how their sampling model reflects population sizes.\n\nEDIT\n\nSo I ran into today, he said they measure the amount of area they cover in square miles and the amount of fish they take in said area.  Then they extrapolate to the whole Pacific Ocean.  He said that although it isn't an exact method, the year to year population averages of all the different fish populations don't vary much, even though they cover different areas and different sized areas each year.
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<>Actually, this is not as easy as I thought it would be.  Here're a couple sites to look at.  I'll see if I can find more.\nPS: I guess it would be easier if you were to specify a particular bivalve.  There is a variety of articles on different ones here:\nhttp://www.student.loretto.org/zoology/Bivalve.html\nhttp://cars.er.usgs.gov/Region_5_Report/html/bivalves.html\nhttp://www.esg.montana.edu/dlg/aim/mollusca/bivalve.html\nhttp://www.chesapeakebay.net/info/hard_clam.cfm\nhttp://www.aquaticinvaders.org/nan_browse.cfm?level=4&key=030201000000\nhttp://www.aquaticinvaders.org/nan_browse.cfm?level=4&key=030201000000
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who cares?! bottom line is it's good for you!\n\nif you really want to know:\n\nnervous system, cardiovascular systen, muscle system,immune system, respiratory system, digestive system, exocrine and endocrine system....pretty much anything except for the reproductive system depending on what you're doing in the water ;)
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I doubt that anyone would really be able to answer that unless he or she just so happened to work there.  I suggest calling or e-mailing someone from the aquarium.
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If you really want to know take it to the biology section of a college or natural resources institute, (anything with biology on its name) make sure you take pictures of it and save them so that nobody takes the credit from you; or take a lot of pictures from different angles and send them to an institut over the net
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You probably mean phytoplankton.\nThere are several types.  See the wikipedia article referenced below.
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It's a crustacean.\n\nShellfish, to the layman....
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Go to your biology book and look it up or go to wikepedia
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This is not a pure biology question. Should be bio-chemistry.
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GO TO:\nhttp://aquarium.ucsd.edu/challenger/index.cfm
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Think of an ant on top of mount everest,thats relationship between a fish and the ocean.There are over a a trillion fish in the ocean.
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http://www.nature.com/nature/index.html
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# Anoxic autotrophs: Obtain hydrogen from chemicals such as sulfur.\n[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[Dead Zones are areas where the bottom water (the water at the sea floor) is anoxic, meaning that it has very low (or completely zero) concentrations of dissolved oxygen.]]]]]]]]]]]]]]]]]]]]]]]]]\nDead Zones are areas where the bottom water (the water at the sea floor) is anoxic, meaning that it has very low (or completely zero) concentrations of dissolved oxygen. These dead zones are occurring in many areas along the coasts of major continents, and they are spreading over larger areas of the sea floor. Because very few organisms can tolerate the lack of oxygen in these areas, they can destroy the habitat in which numerous organisms make their home.\n\nThe cause of anoxic bottom waters is fairly simple: the organic matter produced by phytoplankton at the surface of the ocean (in the euphotic zone) sinks to the bottom (the benthic zone) where it is subject to breakdown by the action of bacteria, a process known as bacterial respiration. The problem is, while phytoplankton use carbon dioxide and produce oxygen during photosynthesis, bacteria use oxygen and give off carbon dioxide during respiration. The oxygen used by bacteria is the oxygen dissolved in the water, and that’s the same oxygen that all of the other oxygen-respiring animals on the bottom (crabs, clams, shrimp, and a host of mud-loving creatures) and swimming in the water (zooplankton, fish) require for life to continue.\n\nThe "creeping dead zones" are areas in the ocean where it appears that phytoplankton productivity has been enhanced, or natural water flow has been restricted, leading to increasing bottom water anoxia. If phytoplankton productivity is enhanced, more organic matter is produced, more organic matter sinks to the bottom and is respired by bacteria, and thus more oxygen is consumed. If water flow is restricted, the natural refreshing flow of "oxic" waters (water with normal dissolved oxygen concentrations) is reduced, so that the remaining oxygen is depleted faster.\n\nMany of the areas where increasing bottom water anoxia has recently been observed are near the mouths of major river systems. While Satellite images can’t see the bottom of the ocean, they can see the surface, where sediments from rivers mix with ocean waters. The images shown here are Satellite images (SeaWiFS) observations of the Mississippi River delta, the Yangtze River mouth in China (The Yangtze River mouth is not currently identified as an area with an associated dead zone, but such conditions could develop there in the future), and the Pearl River mouth in China, near Hong Kong.\n\nSeaWiFS can also observe areas where water flow is restricted, such as the Baltic Sea in Europe. The image on the left features Denmark after strong storms caused flooding and increased sediment suspension in the Baltic. On the right is an overview of the Baltic Sea, including a plankton bloom in the Skagerrak just north of Denmark.\n\nThe apparent cause of the creeping dead zones is agriculture, specifically fertilizer. While fertilizer is necessary to foster bumper agricultural crops, it also runs off the fields into the streams and rivers of a watershed. When the fertilizer reaches the ocean, it just becomes more nutrients for the phytoplankton, so they do what they do best: they grow and multiply. Which leads to more organic matter reaching the bottom, more bacterial respiration, and more anoxic bottom water.\n\nThese effects can be magnified by catastrophe. When the heavy rains of Hurricane Floyd caused extensive flooding in North Carolina in September 1999, the heavy load of nutrients (from dead animals, flooded animal waste ponds, and numerous other sources) reached the sounds that lie between the coast and the Outer Banks, oxygen levels in the water plummeted. The picture at the top of the page shows the heavy load of sediments flowing into Pamlico Sound. SeaWiFS captur
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invertabrates are sea creatures that done exactly look like creatures as the resemble plants to name a few,anomemes,feather dusters,(looks like a plant but feeds off of nutuants in the water) and the starfish is another type of invertebraete live coral also is in this class now you know where to start you reserch