Help Needed
Rutgers Study: Mercury in Saltwater Fish
BACKGROUND: In addition to providing valuable recreational opportunities
fish are an important part of a nutritious diet. Fish provide high quality
protein, while generally being low in fat. Fish are high in omega-3 fatty acids
which are beneficial both for fetal and infant development and for adult
health. But some fish contain certain contaminants, particularly mercury and
PCBs which can be harmful. Several studies have identified fish that are high in
mercury (such as Shark and Swordfish), but few studies have focused on finding
fish low in mercury. People who eat fish frequently will benefit from knowing
which fish are low in mercury and can be eaten often. We are undertaking a study
of recreationally-caught salt water fish and are seeking assistance.
OBJECTIVES: To find out how much mercury there is in sportfish so people
can make informed decisions about how much of which fish to eat.
To
understand the distribution of contaminant concentrations in different kinds of
fish available to recreational fishing in coastal in New Jersey; to support
advisories that can inform consumers about species low in mercury as well as
high in mercury (and other contaminants). We want to support sound choices for
a healthy diet. The main contaminants of concern in fish are methylmercury and
polychlorinated biphenyls (PCBs). The current proposal emphasizes mercury, but
all samples obtained will saved for PCB analyses should additional funding
become available. Both mercury and PCBs are mainly of concern for the
developing fetus, but adults can consume enough fish to experience symptoms of
mercury poisoning. This work complements our previous studies of mercury in
supermarket fish as well as extensive investigation of mercury in freshwater
fish conducted by the NJDEP.
HOW WILL
THIS HELP: You can be part of a study that helps figure out what fish are
good to eat, as well as which ones to eat fewer of. We can also figure out
whether bigger fish have higher levels of mercury, and whether there are
differences in mercury levels in fish caught along different parts of the coast
or at different seasons. All collaborators will be acknowledged in talks.
RESULTS:
When we complete analyses we will provide a report to JCAA and to all of the
collaborating clubs and individuals.
PROGRESS
TO DATE: We have been collaborating with JCAA to make this study happen.
We met with the JCAA to initiate the study, and our meeting resulted in a number
of wonderful contacts. As a result of the JCAA meeting, we attended the Hi-Mar
Striped Bass Tournament at Twin Lights Marina in Highlands and collected samples
from 22 bass, ranging in size up to 38 pounds. Each sample is about 2 ounces of
fillet. We also collaborated with the fluke tournament sponsored by JCAA and the
Forked River Tuna Club. It was a great success. We were able to collect the
following fish, and are very grateful for all the help. We still need samples
of fluke from Cape May area, and hope some JCCA fishermen can help.
LET US KNOW IF THERE ARE OTHER SUCH
TOURNAMENTS THAT WE CAN ATTEND TO SAMPLE FISH (we only take a small piece).
|
Location |
Marina |
Size
(in pounds) |
# of Samples |
|
Jersey City |
True World Tackle |
Up to 5.08 |
25 |
|
Sandy Hook |
Julian's |
Up to 6.2 |
20 |
|
Barnegat |
Southwinds Marina |
Up to 10.8 |
29 |
|
Ocean City |
Fin-Atics |
Up to 8.5 |
21 |
|
Cape May |
We were unable to get to this one.
|
NEEDED |
|
At the Ladies Invitational Bluefish
Tournament at Trump Marina, we obtained over 40 samples from a good size range
of Bluefish (5-13.4 pounds), and we appreciated the cooperation of the anglers
and of the weigh-in staff.
NEEDED: 2 ounces of fish
muscle from: STRIPED BASS, WINTER FLOUNDER, SHARK, CROAKER, PORGY, BLUEFISH, SEA
BASS, FLUKE (mainly from Cape May area), TAUTOG (and other fish that are
frequently caught and eaten). We need about 15 to 20 samples per species for
each of the areas along the shore.
WHAT TO DO WITH THE FISH:
1. Cut out about 2 ounces (a cube
about 1 inch by 2 inches)),
2. Put in a ziplock plastic bag
(sealed). (sandwich size is OK)
3. Put this in a second ziplock bag,
with a piece of paper that notes:
a. Species of fish
b. Total weight (in pounds) and length
(in inches from nose to end of tail fork.
c. Location and Date where caught
d. Your name, address, phone number or
email
4. FREEZE
WHAT TO DO WITH YOUR FROZEN SAMPLE:
1. After you have accumulated several
of these samples call (732 445 4318) or
2. Email us:
burger@biology.rutgers.edu
or
gochfeld@eohsi.rutgers.edu
3. We will figure out how to get them,
or you can arrange to bring them to us and see how the analyses are done in the
laboratory.
Dr. Joanna Burger Dr. Michael
Gochfeld
Biological Sciences
Environmental Medicine
Rutgers University UMDNJ-RWJ
Medical School
604 Allison Road 170
Frelinghuysen Road
Piscataway, NJ Piscataway, NJ
08854-8082 08854
burger@biology.rutgers.edu
gochfeld@eohsi.rutgers.edu
732 445
4318, 732 445 0123 (ext. 630)
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