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i kinda need this for our project... so lease help me out

2006-08-25 17:20:12 · 5 answers · asked by Anonymous in Science & Mathematics Botany

5 answers

There are many different types of organisms that live under the photic region of the sea. Some of these creatures can live at up to 3000 metres deep. Since no light can get that deep in the water, these creatures tend to live on the process of chemosynthesis (like photosynthesis, but using chemicals instead of light). Other creatures then feed on these, including fish.

An example of one such creature is the tube worm, which is a creature that creates a tube around itself to live in, then leeches chemicals directly from deep-sea geothermal vents.

Hope this helps.

Note: You've placed this question into the "Botany" section, however botany is the study of plants, and has nothing to do with fish. Just thought you should know.

2006-08-25 17:30:32 · answer #1 · answered by CubicMoo 2 · 0 0

Orange Roughy, look under the topic of deep ocean trawling.

What I remember from an aquaculture class is that most of the open ocean has little in the way of fish.

But, there are underwater mountains and places with heat vents where the materials that support a web of life for fish exist.

You can break down the fish into two categories, those that also inhabit the coasts but go to the deep ocean debts to mate (check out eels, and orange ruffy for example) and those that are specialized to that one area.

These deep ocean trawlers scrape the ocean floor and besides catching fish, they damage the ecosystem. Fish that only live at the extreme depths fall apart before they reach the surface due to the pressure differences.

It is a non-newable resource, when they first started the trawling for orange roughy they netted huge catches, then the catches rapidly dropped.

I am going on memory here, see website below:

http://www.ens-newswire.com/ens/feb2004/2004-02-11-11.asp

2006-08-25 17:45:28 · answer #2 · answered by Anonymous · 0 0

One example. Orange roughy.

http://www.starfish.govt.nz/science/facts/fact-orange-roughy.htm

2006-08-25 17:46:18 · answer #3 · answered by Just_curious 4 · 0 0

ya more than you think sorry i cant name any .

2006-08-25 17:24:01 · answer #4 · answered by mic429 2 · 0 0

try

2006-08-26 04:58:31 · answer #5 · answered by dianed33 5 · 0 0

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