Public Lab Research note

MapKnitter map of Giant Salvinia Bayou st John Winter 2019

by eustatic | February 18, 2019 19:54 | 461 views | 2 comments | #18390 | 461 views | 2 comments | #18390 18 Feb 19:54

Salvinia cleanup, making 50 cu yds of compost

Embedded image by Ramiro Diaz

Facebook #SalinityControl Kayakityat

Kayakityat, Friends of Bayou St. John., City Park, and Urban Conservancy have all sprung into action, following a Salvinia invasion of the Bayou from the Lake.

LDWF has placed boom. between the lake end of the bayou and the city end.

_Bayou St. John neighbors gathered last weekend with rakes and shovels to take on a mutual enemy: giant salvinia. Large swaths of the invasive species have been floating in the bayou since mid-January and neighbors are concerned the problem will only get worse.

Giant salvinia is an invasive fern from South America. It was first documented in Louisiana in 1988.._


The restoration of the Lake, along with unusual amounts of rain since 2012, has caused it to freshen, and the salvinia to spread. Here's a photo from Canoe and Trail on the northshore.

Canoe and Trail

Reply to this comment...

Beautiful map, Scott!

Reply to this comment...

Login to comment.

Public Lab is open for anyone and will always be free. By signing up you'll join a diverse group of community researchers and tap into a lot of grassroots expertise.

Sign up