this is oceanography. please do not copy on the internet and make sure your answ
ID: 234393 • Letter: T
Question
this is oceanography. please do not copy on the internet and make sure your answer and spelling is specific and right. thank you
Primary Producers
1) What are the Primary Producers in the ocean?
2) Why are Primary Producers important in the ocean?
3) What is the Limiting Factor in the ocean? Give example(s) of limiting factor in tropical, temperate and polar regions of the ocean, respectively.
4) What is the seasonal variation of phytoplankton population in tropical, temperate and polar oceans?
Harmful Algal Bloom
Provide answers to the following questions about Red Tide. (refer to Garrison textbook, pages 303-305, or elsewhere for information related to the topics)
1) What is Red Tide?
2) What is the specific phytoplankton involved in causing Red Tide?
3) What are the oceanic conditions required for Red Tide to occur in certain locations?
4) What are the effects of red tide on the environment and human health?
Explanation / Answer
1) primary producers are the organisms which uses the sun light energy to make their own food in a procees called photosynthesis. examples are phytoplanktons.
2) primary producers are impotant because they release oxygen in the process of photosynthesis and they also serve as a food for heigher trophic level organisms such as zooplanktons
3) factors that limits the growth of organisms such as nutrients, light ,oxygen levels etc.
the limiting factors in tropical ocean are lack of nutrients. thermocline prevents the upwelling of nutrients into surface layers.
in temperate regions sun light and nutrients are the limiting factors
on polar regions temperature is the limiting factor
4) in tropical oceans the productivity is constant through out the year
in temperate regions the productivity is low during winter and summer , and high during spring and fall
in polar oceans the productivity is high during and low during remaining seasons.
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