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Dr. Joseph Buttner's Photo Gallery


These photographs supplied by Dr. Joseph Buttner, Salem, Massachusetts.

Clams

Softshell clams in raceway being conditioned to reproduce.

Buoys and Nets

Predator exclusion netting with buoy floats to protect 10-15 mm SL softshell clams from green crabs. 

Clam

Close-up of one broodstock softshell clam with foam support to simulate sediments around clam.

Cropplant

Back-filling perimeter trench to secure predator exclusion netting.

Readying the Net

Digging perimeter trench to secure predator exclusion netting. 

Newly-Laid Nets

Predator exclusion netting installed and ready for tide to return. 

Seeding Softshell Clams

Juvenile softshell clams are broadcast onto stock sites at 25 clams per ft2.

Nets on Flats

A typical lease site includes multiple predator exclusion nets.

Clams and Periwinkles

Softshell clams are cultured in trays with periwinkles, which help control biofouling. 

Clams in Silo

Softshell clams 2-3 mm SL or smaller are maintained in silos at high density.

Growing Algae

Large numbers of algae are grown in translucent tubes as a food for baby clams. 

Baby Clams

Post metamorphic clams are small, < 0.5 mm SL.

Silos in Trough

Recently metamorphosed clams are maintained in downwellers to ensure proper food supply and to encourage settling.

FLUPSY

At 2-3 mm SL clams are transferred to a FLoating UPweller System to maximize growth and survival.

Managing the FLUPSY

To remove biofouling organisms, the FLUPSY must be cleaned weekly.