1. Diadromous Fish & Dam Restoration Importances
By: Kassie Furtado, Sabrina Costa, Valeria Maldonado

2. What is a Diadromous Fish?
Organism that migrates between salt and freshwater
Spread nutrients between both types of water
Examples
Blueback Herring
River Herring
Alewife
Atlantic Salmon
Rainbow Smelt
American Shad
Atlantic Sturgeon
American Eel
Sea Lamprey

3. American Eel LOOKS Body of a snake Dorsal fin far behind pectoral fins
Pelvic fins nonexistent
Scales, but can’t be seen by the naked eye
No set color
Transparent
brown/grey-green
yellow/olive- brown
Brown to silver
LIFE CYCLE
Born in Sargasso Sea
Once glass eels, move into rivers
Turn yellow
Silver once fully grown
Migrate back to Sargasso Sea to lay eggs
Die
THREATS
Dams
Less habitat
Cannot migrate
Hydroelectric Turbines
Get caught and die

4. ALOSA AESTIVALIS Identification Methods Blueback Herring Anadromous
They have blue on their back!
Identification Methods
Blueback Herring
Anadromous
ALOSA AESTIVALIS

5. Compare ANADROMOUS Spawn in freshwater Live in saltwater CATADROMOUS
Spawn in saltwater
Live in freshwater
SAME
Migrate between Salt and fresh
Spawn
Marine animals
Start off as eggs

6. Dam Restoration (Field Study)
During the field trip to Acushnet River, we witnessed many organisms in their natural habitats. We learned about the different stages of american eels, and even got to see glass and yellow eels, the early stages of the American Eel. Along with learning about the american eels, we learned about the history of the park and the river. The river was used as a sawmill for 150 years. In the year 2007, the family that lived there decided to sell the property for permanent conservation. In the years of , the Coalition(co-a-li-shion)organization,(the new owners) built the fish ladder that is now used today.To help the marine animals in the river to reach their spawning destination.

7. How can we help the fish? eel & blueback herring ladders
Help with migration
Eel ladder designed to help get past barriers such as dams & natural barriers.
The eel ladder is pipes on wall, & eels coil around them to go up.
Fish ladder helps fish get from one place to another.
Steps that fish jump up or down so they can go where they need to be without dam being in way.

8. Works Cited
American Eel (Anguilla Rostrata) - Species Profile, nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=310.
Online Photo Editor | Pixlr Editor, pixlr.com/editor/.
“‘Fishways’ Improve Herring Stocks on Acushnet River.” On The Water,
“116 Free Images of Compare.” Pixabay, pixabay.com/images/search/compare/.
“American Eel Migration at the Beauharnois Dam.” Milieu Inc.,
“Diadromous Fisheries Project.” Mass.gov,
Sandrp. “Fish Ladders: Do They Work?” SANDRP, 2 Sept. 2014, sandrp.in/2013/03/29/fish-ladders-do-they-work/.
“The Sawmill Opens after Multi-Year Restoration on the Acushnet River.” Buzzards Bay Coalition,
U.S. Fish and Wildlife Service/Fish and Aquatic Conservation. “American Eel.” Official Web Page of the U S Fish and Wildlife Service,
U.S. Fish and Wildlife Service/Fish and Aquatic Conservation. “Blueback Herring.” Official Web Page of the U S Fish and Wildlife Service,
“What the Acushnet River Can Teach Us about Restoring River Herring.” Buzzards Bay Coalition,

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