Independent project plan

46

L4

47

e1

48

East of Eddystone Rocks

49

North West of Eddystone Rocks

Map has been made of sights

Figures to do

Figure 1: o CTD graphs – temperature, salinity and depth all on one graph for multiple stations. You don’t need to use all stations but compare offshore (L4 and E1) vs nearshore stations.

  • Purpose: Show stratification and water column structure.

  • Analysis:

    • Compute density gradients (dρ/dz) to quantify stability.

    • Optional: overlay thermocline depth (where dT/dz is maximum).

  • Legend: Describe the stations, depth range, and highlight the thermocline and pycnocline.

Figure 2: Chlorophyll against depth to compare offshore vs nearshore. Compare this with previous years.

  • Purpose: Show how physical structure influences phytoplankton distribution.

  • Analysis:

    • Compute Pearson correlation between chlorophyll and density.

    • Identify depth of maximum chlorophyll and check if it aligns with pycnocline.

  • Legend: Include correlation coefficient, depth of chlorophyll maximum, and note any offshore vs. nearshore differences.

Figure 3: o Nutrients vs depth – you could probably add this to the chlorophyll graph.

  • Purpose: Show nutrient availability and link to phytoplankton biomass.

  • Analysis:

    • Compute Pearson correlation between chlorophyll and each nutrient.

    • Optional: linear regression to show strength of relationship.

  • Legend: Highlight depths where nutrients are depleted vs. chlorophyll peaks.

Figure 4: Scatter plots of Chlorophyll vs. Nitrate (or other nutrients)

  • Purpose: Quantify relationships between nutrients and phytoplankton.

  • Analysis:

    • Fit linear regression lines, report R² and p-values.

    • Optionally separate points by depth layers (surface vs. subsurface).

  • Legend: Explain regression results, significance, and interpretation.

Figure 5: Depth profiles of Chlorophyll, Density, and PAR (Light)

  • Purpose: Show combined influence of light and stratification on chlorophyll.

  • Analysis:

    • Compute correlation of chlorophyll with PAR.

    • Highlight chlorophyll maxima in relation to euphotic zone depth.

  • Legend: Include depth of chlorophyll maximum, density gradient, and light attenuation.

Figure 6: o Average phytoplankton vs depth bar chart. (I did mine for salinity, but only because mine was the estuary question). You could also add nutrients.

  • Purpose: Show horizontal and vertical variability and spatial patterns.

  • Analysis:

    • Overlay isopycnals (lines of constant density) if possible.

    • Optional: compute average chlorophyll in offshore vs. nearshore zones, and perform t-test to show significant differences.

  • Legend: Explain station locations, color scale, density contours, and interpretation.

Sub-prompts

  • Compare nearshore vs. offshore profiles.

  • Correlate phytoplankton (chlorophyll) with physical, chemical, and biological parameters.

  • Consider tide, wind, light.

  • Seasonal changes and year-round patterns (WCO data).

  • Links to zooplankton and phytoplankton adaptations.

Stations

I’m going to be comparing offshore and nearshore stations. My offshore will be E1 and L4 and my nearshore will be the breakwater