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City Nature Challenge - Lake Merritt BioBlitz 2020

The City Nature Challenge was a great occasion to resurvey the aquatic life at the Lake Merritt Boating Center dock. Thank you to the California Academy of Sciences Citizen Science Department and to the observers and identifiers who contributed to the Lake Merritt BioBlitz 2020. Thirty aquatic species were observed at Lake Merritt this year, in comparison to seventeen last year.

Here is a species list and some observations about differences between this year and last.

Physical conditions: Observed on Fri 4/24, 2020 at Lake Merritt Boating Center Docks
Cool and windy, water temperature 20 degC , salinity 30 ppt; dissolved oxygen 8 ppm, pH 7.5, Secchi 170 cm. Tide gate was probably closed, low tide levels. Lake Merritt received only 1.67 inches of rainfall Jan-Apr 2020, compared to 13 inches in Jan-Apr 2019. Last year, water temperature was 23 degC and salinity was only 22 ppt, .

2020 LAKE MERRITT BIOBLITZ SPECIES LIST
Sponges
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Ingresado el 06 de mayo de 2020 por ktnoon ktnoon | 0 comentarios | Deja un comentario
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The goal of this project is to follow the aquatic species community in Lake Merritt from 1966 into the future!

Oceanographers Jim Carlton of Williams College and the Smithsonian and Andrew Chang and colleagues from the Smithsonian Lab in Tiburon are collaborating with the project to allow citizen scientists to help extend their observations into the ...más ↓

Mini ktnoon creó este proyecto el 28 de junio de 2017

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