Diversity analysis of intertidal species in different tide pool elevations
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DIVERSITY ANALYSIS OF INTERTIDAL SPECIES IN DIFFERENT TIDE POOL ELEVATIONS PowerPoint PPT Presentation


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DIVERSITY ANALYSIS OF INTERTIDAL SPECIES IN DIFFERENT TIDE POOL ELEVATIONS . Femi Adegbidi, Brittany Cain , Ally Pennell, Melanie Hogan, Louise -Marie Roux . The Rocky I ntertidal. Unique environment with fluctuating physical factors Physical transition zone

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DIVERSITY ANALYSIS OF INTERTIDAL SPECIES IN DIFFERENT TIDE POOL ELEVATIONS

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Diversity analysis of intertidal species in different tide pool elevations

DIVERSITY ANALYSIS OF INTERTIDAL SPECIES IN DIFFERENT TIDE POOL ELEVATIONS

Femi Adegbidi, Brittany Cain , Ally Pennell,

Melanie Hogan, Louise-Marie Roux


The rocky i ntertidal

The Rocky Intertidal

  • Unique environment with fluctuating physical factors

  • Physical transition zone

  • Diverse zones with various species

  • Fluctuating habitats


Tide pools

Tide Pools

  • Fluctuating environments

  • Tides

  • Physical factors

    • Temperature

    • Salinity

    • Oxygen concentration


Tide pool composition

Tide Pool Composition

  • High Elevations

    • High salinity

    • Temperature changes

  • Low Elevations

    • More water

    • Oxygen

    • Poor at dealing with fluctuations


Objective

Objective

  • Effect of elevation on species diversity and organismal composition in tide pools

  • Hypotheses

    • Medium-Low height tide pools  greater diversity and richness

    • Organisms found will be similar to those defined in the intertidal zonation theory

    • Tide pools at similar elevations will be more similar to each other


Bay of fundy

Bay of Fundy

  • St. Andrew’s, NB

  • World’s highest tides

  • Ideal site for intertidal research


Sampling sites

Sampling Sites

  • 2 sites

    • Indian Point- uniform, sandy substrate,

    • Green’s Point- steep, rocky

      • 4 tide pools per site


Sampling methods

Sampling Methods

  • 30 cm2 quadrat

  • Surveyor’s transit

  • Organisms collected and identified


Data analysis

Data Analysis

  • Dichotomous key for species identification

  • Diversity indexes

    • Sorensen’ssimilarity index

    • Simpson’s diversity index


Common species greens point

Common Species: Greens Point

Highest Tide Pool

Lowest Tide Pool


Common species indians point

Common Species: Indians Point


Species richness

Species Richness


Species diversity

Species Diversity


Tide pool elevation similarity

Tide Pool Elevation Similarity


Conclusions

Conclusions

Organisms that can cope with frequent disturbance are found in tide pools at higher elevations

Organisms that require more water and oxygen in tide pools at lower elevations

Sampling methods may have missed microscopic organisms  Changing diversity


Thank you

THANK YOU!


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