View our 2021 Bioblitz Report!

From 2017 to 2021, Gowanus Canal Conservancy held a bioblitz, working with experts, volunteers, and students to survey and document the biodiversity thriving in and around the Gowanus Canal. On foot and canoe, the team traversed the area for a set period of time (typically from 4 to 24 hours), documenting their findings using iNaturalist, a citizen science mapping application. The bioblitzes provided yearly species inventories at a time when the canal and its banks were rapidly changing with the Superfund clean-up and new development.

Over 3,000 wildlife observations of more than 500 species have been made in the survey area, including over 300 plant species, over 40 bird species and over 40 marine life species. Visit iNaturalist to view all of our observations.

On September 7th and 8th 2019, GCC held its largest bioblitz. A collaboration with Macaulay Honors College and Greenwood Cemetery, the 2019 BioBlitz involved an entire weekend of intensive and collaborative cataloguing of the life in both Gowanus and Greenwood. Hundreds of Macaulay students were guided by scientific experts and other knowledgeable volunteers.


Gowanus Dredgers
Brooklyn Bird Club
New York Botanical Garden
Macaulay Honors College
Greenwood Cemetery