No backbone? No problem. The fascinating world of aquatic invertebrates.

Nature Matters presents an evening with Xerces Society Staff Scientist & Aquatic Conservation Coordinator, Dr. Celeste A. Mazzacano January 16th at the Fort George.  

Aquatic Macroinvertebrates: ecology, Ecosystem Services and River Restoration 

Aquatic invertebrates are found in almost every freshwater habitat, where they play key roles in nutrient cycling and regulating primary production. They are a vital food resource for birds, fish, amphibians, mammals, and reptiles. The biological health of a waterbody can be determined based on their community composition, and they are useful tools in monitoring for pesticides & herbicides.

Celeste will discuss just how much aquatic macroinvertebrates contribute. Freshwater mussels will be addressed as a particularly sensitive group of macroinvertebrates whose survival is closely linked to native fish, yet whose conservation and habitat needs are frequently unknown and not addressed.

Celeste is the Staff Scientist and Aquatic Conservation Director for the Xerces Society for Invertebrate Conservation, headquartered in Portland Oregon, and the Project Coordinator for the international Migratory Dragonfly Partnership.  She is also Editor-in-Chief of Argia, the news journal of the Dragonfly Society of the Americas. She has a Ph.D. in Entomology and a B.S. in Genetics and Cell Biology from the University of Minnesota.  With over 17 years of experience in research, conservation, and education, Celeste brings an impressive depth and breadth of experience to bear on current conservation issues.   Some of her projects include conducting invertebrate-based biomonitoring in streams and wetlands; developing macroinvertebrate indicators of stream flow duration for the Pacific Northwest; surveying and writing status reviews and management plans for rare and threatened aquatic invertebrates; developing and delivering natural resource education programs; creating and sustaining citizen science projects; and developing recommendations for ecologically sound mosquito management in wetlands.

Nature Matters, a lively conversation about the intersection of nature and culture, takes place on the third Thursday of the month through spring. The collaborative series is hosted the North Coast Watershed Association and Lewis and Clark National Historical Park in partnership with the Fort George.  The series delves into the many ways that human beings look to the natural world for inspiration, sustenance and survival – the intersection of nature and culture. Doors at 6, program at 7.


Jesse Jones, Coordinator

North Coast Watershed Association

503.325.0435 x212

818 Commercial Street, Room 203

Astoria, Oregon 97103

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