The correlationship between Salinity and Temperature in sea water?

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Discussion Overview

The discussion centers on the relationship between salinity and temperature in seawater, particularly in the context of red tide occurrences and various physical and chemical parameters affecting marine environments. The scope includes exploratory questions regarding the interactions of these parameters and their implications for algal blooms.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants assert that there may be no correlation between salinity and temperature, citing that heating seawater does not change salinity.
  • One participant seeks to understand why salinity changes with depth in the ocean and how this relates to temperature variations.
  • Questions are raised about the relationship between low salinity and the increased occurrence of red tides, assuming other parameters remain constant.
  • There is an inquiry into whether high concentrations of chlorophyll-a indicate a positive relationship with red tides, and the reasons behind this correlation are questioned.
  • Participants discuss the dual relationship of dissolved oxygen (DO) with red tide blooms, considering factors like photosynthesis and respiration that affect DO levels.
  • Another participant asks how pH values might influence red tide occurrences, particularly in relation to the preferred pH range of algal species.

Areas of Agreement / Disagreement

Participants express differing views on the correlation between salinity and temperature, with some suggesting no correlation exists while others explore the complexities of their relationship in the context of red tides. The discussion remains unresolved with multiple competing questions and hypotheses presented.

Contextual Notes

The discussion includes various assumptions about the relationships between physical and chemical parameters and their effects on red tides, but these assumptions are not universally accepted or validated within the thread.

Who May Find This Useful

This discussion may be of interest to researchers and students studying marine biology, environmental science, or oceanography, particularly those focused on algal blooms and their influencing factors.

kagwai
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Can you guys please kindly tell me about that as shown of the topic?
What is the relationship about it?
 
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First of all - you should show some effort at finding the answer before asking.

Second - your question is so vague it is impossible to answer. The simplest answer - one which probably doesn't suit you - is that there is no correlation. If you take a pot of sea water and heat it up to boiling, water salinity would not change.
 
sorry i think i should explain more in detail.
As investigating about the correlation between the physical and chemical parameters with the red tides occurrence.

The physical parameters including temperature, salinity, pH value, turbidity, dissolved oxygen and chlorophyll-a.

and I would like to know about that
1. why in different depth of the sea region ,the salinity will be changed and meanwhile the temperature also get changed?

2. why the red tides occurrence is raising when the salinity is low set if other physical parameters and chemical parameters are in constant state.

3. it is known that the chlorophyll-a represents the biomass of algal species such as dinoflagellates or diatoms. does it mean if high concentration of chlorophyll-a exists reflect the positive relationship of red tides occurrence? and why? if no, what is the reason?

4. why dissolved oxygen (DO) content will get resulted in two different kind of relationship with red tides blooms which are positive and negative? is it due to photosynthesis in daytime so DO is in enrichment and in the evening the respiration occurs so DO is depleted? what is the main relationship between DO and red tides blooms?

5. How can pH values can vary the occurrence in red tides? is that most algae species inhabiting in about pH range of 6~8 that slightly alkaline condition?

Sorry if there's maybe too more question. Thank you very much if all of you could help me!
 
OK, so at least we know what you are looking for. Where have you tried to locate the information so far?
 
all the information above are combined by myself.
and I search those information from journal, reviews journal and books related to algal and red tides.

could anyone answer my question? thank you
 

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