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to an online glossary (or
dictionary) of related terms.
MIT Sea Grant has three main objectives at the hatchery:
and demonstrate environmentally sound and cost-effective recirculating
procedures for rearing alternative marine
finfish species that
show market potential; and
- Conduct outreach and education to educate the public about aquaculture
in the development of aquaculture seems to be the availability
of a constant and reliable supply of fingerlings to
companies for growing out to market size. MIT Sea Grant recognized
this shortfall and developed Boston's first marine finfish hatchery.
Operations began in 1998 on Pier 3, which is located in the heart
of the historic Navy Yard in Charlestown. By using the National
Park Service’s space, MIT Sea Grant not only demonstrated
urban aquaculture but also showed an efficient utilization of
formerly devoted to maritime activity. In 2003, MIT Sea Grant’s
hatchery moved to the Gloucester Maritime Heritage Center.
The hatchery consists of two independent culture systems, six
100-gallon hatching/larval-rearing tanks and two 500-gallon grow-out
and a live feed culture room. Each system demonstrates state-of-the-art-recirculating
technology. Harbor water is pumped in at high tide, if needed,
and filtered and aerated to keep excellent water quality. Initially
eggs are hatched in the hatching tanks and then the larvae are
fed a live feed diet consisting of zooplankton such as rotifers and Artemia.
Eventually the fish are weaned onto a dry pellet feed that promotes
The live feed
culture room consists of 5 tanks and an Artemia hatching cone.
The tanks are used to culture rotifers and Aretmia that are
fed to the larvae. The Artemia hatching cone is used to hatch
Artemia to feed the older larvae.
tanks house the fish from hatching until they grow large enough
to be weaned to a dry feed diet. The point
are moved into the grow out systems is dependent on the fish’s
point in the life cycle, which is in turn dependent on the
size of the fish. The hatching tanks are dark so that the
amount of light
that gets into the tanks while the fish are hatching can
be controlled. State-of-the-art recirculating technology
is used to filter the water
in the hatching tanks.
Once the larvae
metamorphose into juveniles, they are weaned onto a dry pellet
diet that is commercially available and
from the larval tanks to the grow-out system. The grow-out
tanks are larger
and allow more space for the fish to grow. The water in
the grow-out tanks is filtered using state-of-the-art recirculating
when the fish can handle these changes is key to rearing a species
not previously reared in captivity.
from the hatchery (growth rates, weight, feed conversions,
and environmental conditions) will determine whether
or not a particular
commercial potential. The hatchery is involved in several
research projects related to the aquaculture industry.