Odd-looking objects form artificial reef in Dartmouth
By
Jack Stewardson, Standard-Times staff writer DARTMOUTH -- Slowly, gingerly, the huge
35-ton hydraulic crane aboard a Linberg Marine Inc. barge lifted one of the
weird-looking, sawed-off-whiffle ball-like contraptions off the deck and gently
set it down in waters off Salters Point yesterday. It was being lowered 30 feet to the sea
bottom, where it will become part of an artificial reef designed to make fish
feel right at home.
"We've got the first 20 reef balls in
and we're setting up for the pallets now," said Larry Beggs, a representative of
Reef Innovations and Diving Specialists Inc. of Florida and the Reef Ball
Development Group Inc. of Georgia, which molded about 80 reef units earlier this
month at the Fairhaven shipyard. "Finally," said Paul Diodati, sports
fisheries program manager with the State Division of Marine Fisheries, who has
been waiting nearly two years for the effort to enhance fish stocks to get off
the ground. "It's a great
site," he added. "A perfect site." Linberg Marine is deploying the 1½-ton
reef balls and the smaller, 1,300 to 1,5000 pound pallet balls to create an
artificial habitat at the bottom of a 3.5-acre site off Salters Point. The
company deployed about 45 of the units yesterday, and hopes to complete the work
today. "The goal is to create
additional habitat for marine life,' said Rep. William M. Straus,
D-Mattapoisett, who got $75,000 appropriated through the Legislature to set up
the program. Fish
like to congregate around the structures, which soon become encrusted with
vegetation and invertebrates, creating a habitat for species such as scup, black
sea bass, and tautog, which seek out bottom areas for food and shelter. Lobsters
also are likely to be to be attracted to the area, along with secondary users
such as striped bass and bluefish. "This place is going to be a big scup
area next year," predicted Lt. Peter Hanlon of the state environmental police. A
25-foot patrol boat and UMass Dartmouth's Lucky Lady ferried the state
officials, Reps. Straus and John Quinn, D-Dartmouth, and reporters out to watch
the placement of the reef units. The project is a joint undertaking of
the state Division of Marine Fisheries and the UMass Dartmouth Center for Marine
Science and Technology. "There
is real potential in education, real potential in research, and I believe real
potential for economic development," said Dr. Peter H. Cressy, chancellor of
UMass Dartmouth. "It's another
way station for us to gather data," he added. "It should give us some real good
science, and not by guess or by God." Karen Rypka, coordinator of the project
for the state Division of Marine Fisheries, said the concrete reef balls and
pallets have proven "to be the best type for reef materials." "Tires have been proven over the years
not to be the best reef material," she said. "Bundled together, they have a
tendency to get blown apart in a storm." Divers
are expected to check the configuration next week, she said. "This time of year,
however, the visibility is a little tough in Buzzards Bay." The artificial reef was being laid with
a cluster of 20 balls laid at the center, with the smaller pallet balls in
perimeter groupings. Some of the larger balls will be laid outside the site.
The concrete contains micro
silica for added strength, is resistant to abrasives and has a pH content
similar to natural seawater. The reef balls, weighing 3,000 to 3,500 pounds
each, are about 4 feet high and 6 feet in diameter. Reef pallets weigh 1,200 to
1,400 pounds and are about 3 feet high and 4 feet in diameter. "We're going to start monitoring this
site on a regular monthly basis, and also work with the Mass. Division of Marine
Fisheries," said Jeff Turner, the UMass Dartmouth scientist who has spent 10
years collecting data on things such as water chemistry and plankton at various
sites in Buzzards Bay. Mr.
Diodati said the state hopes the information gathered from the Salters Point
reef will allow the state to expand the program in the future. "We hope
to develop a second project or expand the project here in Buzzards Bay," he
said. "I'd like to see one more project in Buzzards Bay or in some other area of
state waters," He said the
state might be able to use fisheries restoration funds it receives through the
federal Wallop-Breault Fund to expand the project.
Staff photos by Hank
Seaman (Top to bottom): 1) Reef balls on a barge will be lowered into
the site off Salters Point in Dartmouth. 2) One of the units is hoisted on a
cable. 3) A crane lifts a reef ball off the barge. 4) From left, Rep. William M.
Straus, Paul Diodati of the Division of Marine Fisheries and Rep. John Quinn
watch the procedure.