Fish Holding

Since the early 1970’s Alden has been on the fore front of fishery research with regards to fish passage and protection at power utilities.

An essential part of any fishery research study is healthy test fish.  These healthy organisms  are the result of a successful aquaculture program. Alden's research has included many studies conducted with live fish that have produced design and operation criteria for various fish protection and passage systems that are in common use today.  

In the process of conducting these biological studies, Alden's fisheries biologists, engineers, and support staff have developed unique capabilities in the holding and rearing of larval, juvenile, and adult fish for testing purposes. Aquaculture at Alden is unique in that fish are not spawned or grown for production within the facility, but rather held only for the duration of testing, which in many cases is only a matter of months. Alden has two aquaculture and research buildings on-site with the capability of holding a wide variety of fish species at various life stages within several research buildings onsite. 

All collection, importation, and aquaculture permits are obtained by Alden from the State of Massachusetts before receiving shipments of any species.  Additionally, on-site holding facilities have been designed and constructed by Alden and inspected by representatives from the Massachusetts Division of Fisheries & Wildlife​​​​​​​​​​

Fish Species

Over the past several decades, 30 plus species of fish have been held and tested at Alden in a variety of adult and larval fishery  studies.  Alden maintains several adult re-circulating facilities; the largest of which holds 10,000 gallons. Additionally, Alden houses several larval facilities which are versatile enough to handle multiple species at once. 

Species Reared and Tested at ALDEN

Alewife (Alosa pseudoharengus)
American eel (Anguilla rostrata)
American shad (Alosa sapidissima)
Atlantic croaker (Micropogonias undulatus)
Atlantic menhaden (Brevoortia tyrannus)
Atlantic salmon (Salmo salar)
Atlantic tomcod (Microgadus tomcod)
Bay anchovy (Anchoa mitchilli)
Bigmouth buffalo (Ictiobus cyprinellus)
Blueback herring (Alosa aestivalis)
Bluegill (Lepomis macrochirus)
Brown trout (Salmo trutta)
Channel catfish (Ictalurus punctatus)
Chinook salmon (Oncorhynchus tshawytscha)
Coho salmon (Oncorhynchus kisutch)
Common carp (Cyprinus carpio)
Freshwater drum (Aplodinotus grunniens)
Golden shiner (Notemigonus crysoleucas)
Lake sturgeon (Acipenser fulvescens)
Largemouth bass (Micropterus salmoides)
Paddlefish (Polyodon spathula)
Rainbow smelt (Osmerus mordax)
Rainbow trout (Oncorhynchus mykiss)
Shortnose sturgeon (Acipenser brevirostrum)
Smallmouth bass (Micropterus dolomieu)
Spot (Leiostomus xanthurus)
Striped bass (Morone saxatilis)
Walleye (Sander vitreus)
Weakfish (Cynoscion regalis)
White perch (Morone americana)
White sturgeon (Acipenser transmontanus)
White sucker (Catostomus commersoni)
Winter flounder (Pseudopleuronectes americanus)
Yellow perch (Perca flavescens)