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NOAA
Fishery Stock Assessment Research and Stock Modeling
Dr. Paulinus Chigbu (mentor), Brandi
Brehon
The
Fishery Stock Assessment course is a four-week course that
is designed to introduce undergraduate and graduate students
to fish stock assessment and fisheries management. The course
was held at Jackson State University in Jackson, Mississippi.
Various students from different institutions with various
majors were selected to be in the program. The students selected
came from backgrounds such as Computer Information Systems,
Mathematics, Biology/Marine Science, Elementary Education,
Business Administration, Computer Science, Chemical Engineering,
and Physics. The institutions represented by the various students
were Prairie View A&M University, ECSU, Jackson State
University, Virginia State University, University of Maryland,
Eastern Shore, and Tufts University. The class was not just
limited to undergraduate and graduate students; there were
two fisheries biologists from the Pascagoula NOAA lab in Mississippi
who took the class to gain more knowledge in the area of stock
assessment.
The fisheries stock assessment course consisting of thirteen
students was held Monday through Friday from nine to five
in a computer lab on Jackson State University's campus. The
instructors consisted of Dr. Dvorah Hart, Dr. Steve Cadrin,
Dr. Stockhauser, Dr. John Brodziak, which were all from the
Woods Hole NOAA Lab in Woods Hole, Massachusetts. The staff
also consisted of the Principal Investigators for the course
Dr. Ambrose Jerald and Dr. Paulinus Chigbu, and Dr. Ralf Riedel,
coordinator of the course. Every three days a different instructor
would come to JSU to lecture a certain section of the Atlantic
States Marine Fisheries Commission: Fisheries Stock Assessment
User's Manual. After the lecture, assignments were assigned
to the class to complete in a group or individually.
Introduction
to the course was given by Dr. Hart. During her lecture period,
she reviewed the foundation of fisheries stock assessment.
In the three days that Dr. Hart was at Jackson State University
she reviewed Calculus I-III, Differential Equations, and Statistics.
The various instructors reviewed estimation of mortality rates,
selectivity of marine fish harvesting gears: general theory,
size selection experiments and determination of size selection
curves, development and application of yield per recruit and
spawning stock per recruit models, production models, stock
and recruitment, and sequential population analysis: age and
length structured stock assessment models. At the conclusion
of the course we were given a final project to complete in
a group or individually. The final project involved assessing
the status of a cod population and interpreting the results
in terms of fishery management advice for the stock. The project
took form of a report to a management agency, interpreting
the results of the analyses to evaluate the status of the
stock and to provide management advice. For successful completion
of the final project, calculations were done in Microsoft
Excel.
After
successful completion of the course, we were sent to different
NOAA labs for an additional four to eight weeks for the remainder
of the summer. The NOAA labs participating in this year's
fisheries stock assessment internship program located in Beaufort,
North Carolina; Woods Hole, Massachusetts; Miami, Florida;
Seattle, Washington; Panama City, Florida; and Pascagoula,
Mississippi. During our time at the NOAA labs we will have
an opportunity to utilize the skills learned during our four-week
course and receive hands-on experience in the marine science
area.
The
fisheries stock assessment course was a wonderful opportunity
for students to gain knowledge in the unfamiliar world of
marine biology. Before attending the course, I was unaware
of the vast amount research that goes into protecting our
marine life. Much time, effort, and money and used to make
sure that our generations does not over and under populate
the marine world for the many generations to come. I also
gained mathematical skills while attending the course. Although
the course demanded hard work and much effort calculating
equations and deriving formulas, we also gained hands-on experience.
We attended the Museum of Natural Science in Ridgeland, Mississippi
and we also went trawling in Biloxi, Mississippi. Going trawling
was an exciting experience that I am hoping to do again. While
trawling we were able to one of the ways research vessels
capture fish to be researched. We were able to be involved
in the catching of shrimp, crabs, starfish, catfish, silver
fish, and many more species of marine life.
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