Presentation Title

Deep Water Renewal of Loch Etive

Presentation Type

Poster

Full Name of Faculty Mentor

Louis Keiner, Physics and Engineering Science/Honors

Major

Marine Science

Second Major

Biology

Presentation Abstract

Loch Etive is a fjord-like sea loch on the west coast of Scotland divided into two basins by the Bonawe Sill. The upper basin of the loch is highly stratified because of freshwater runoff and experiences frequent periods of hypoxia in the deep water. Hypoxia often occurs as a result of respiration, microbial activity, and other processes that deplete oxygen in this isolated deep water. During periods of low rainfall, the stratification is reduced and oceanic water overflows the sill, renewing the deep water. This renewal of the dense, deep water of the upper basin, as seen in the data collected for this study, typically results in major changes in the salinity profile and nutrient distribution of the loch. Aquaculture companies choose placements of trout and mussel farms based on salinity considerations. Understanding of the renewal events is crucial to the economic success of the local community.

Location

Poster Session 1

Start Date

21-4-2021 12:00 PM

End Date

21-4-2021 2:00 PM

Disciplines

Oceanography

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Apr 21st, 12:00 PM Apr 21st, 2:00 PM

Deep Water Renewal of Loch Etive

Poster Session 1

Loch Etive is a fjord-like sea loch on the west coast of Scotland divided into two basins by the Bonawe Sill. The upper basin of the loch is highly stratified because of freshwater runoff and experiences frequent periods of hypoxia in the deep water. Hypoxia often occurs as a result of respiration, microbial activity, and other processes that deplete oxygen in this isolated deep water. During periods of low rainfall, the stratification is reduced and oceanic water overflows the sill, renewing the deep water. This renewal of the dense, deep water of the upper basin, as seen in the data collected for this study, typically results in major changes in the salinity profile and nutrient distribution of the loch. Aquaculture companies choose placements of trout and mussel farms based on salinity considerations. Understanding of the renewal events is crucial to the economic success of the local community.

https://digitalcommons.coastal.edu/ugrc/test1/test1track/63