| Autor: |
Tomasko, David, Landau, Lenny, Suau, Stephen, Medina, Miles, Hecker, Jennifer |
| Předmět: |
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| Zdroj: |
Florida Scientist; 2024, Vol. 87 Issue 2, p61-72, 13p |
| Abstrakt: |
Harmful blooms of the marine dinoflagellate Kai·enia brevis form over the West Florida Shelf in the Gulf of Mexico and can be transported toward the coast of southwest Florida by currents and winds nearly annually. Once on the coast. blooms can be intensified by multiple factors including anthropogenic land-based nitrogen loads. This study investigates the relationship between two management endpoints: land-based nitrogen loads and the duration of red tide events. For the purposes of this effort. a red tide event was defined as a period exhibiting maximum daily K brevis cell counts >100.000 cells/L or > 10.000 cells/'L for at least 30 days within the study area-between Estero Bay and Sarasota Bay-and considered total nitrogen (TN) loads from the Myakka. Peace (inclusive of Horse Creek and Joshua Creek). and Caloosahatchee Rivers occurring within 130 days of the onset of red tide events. TN loads from the Caloosaliatchee Rii·er exhibited statistically significant correlations with red tide ej·ent duration (under both definitions of a red tide event) whereas TN loads from the Peace and Myakka Rivers did not exhibit such correlations. The results suggest that policy and management efforts to reduce nitrogen loading may substantially reduce the duration of red tide events in southwest Florida. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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