A Review of the Accomplishments and Plans of the NOAA Coastal Ocean Program (1994) / Chapter Skim
Currently Skimming:
Appendix 2: SABRE Site Review Report
Appendix 2: SABRE Site Review Report
Pages 99-110
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From page 99... ...
Traditional recruitment research, which relies on estimating mortality rates and processes correlated with it, is thought by SABRE to be too complex and too expensive. The approach taken by SABRE depends upon establishing birthdate distributions from otolith-aging analyses and comparing those distributions at several stages during the first year of life.
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From page 100... ...
An optical particle counter (OPC} has been modified by SABRE scientists to sample menhaden eggs. This new sampler potentially is an important innovation for ichthyoplankton surveys.
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From page 101... ...
In inlet studies, the best temporal information is provided by NMFS surveys at Beaufort Inlet which have yielded time series data crucial to SABRE. The time series indicates that menhaden larval abundances vary on intra- and inter-annual time scales at Pamlico Sound inlets.
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From page 102... ...
Studies of otoliths from menhaden larvae and juveniles play a central role in SABRE; extracting information from the chronological record in otoliths is consistent withtheSABREphilosophyofexaminingcharacteristicsofsurvivors. SABRE research has demonstrated that otolith age estimates up to 200 days after hatching are reliable, which allows estimates of birthdate distributions of survivors to be established at different life stages.
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From page 103... ...
The reliability of models and the scope of future modeling efforts should be clarified. Can the finite element mode' reproduce currents observed in the many past mooring programs conducted in the South Atlantic Bight?
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From page 104... ...
structure and, therefore, may mislead the research effort. Analysis of life table models often leads to the conclusion that the juvenile stage is where population regulation is most important because numbers are declining exponentially while reproductive value is increasing as its mirror image.
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From page 105... ...
A broad modeling approach will offer the comfort of confirmation and the prospect of new insights. New Technologies SABRE has adopted, developed, or applied several new or advanced technologies, including remote sensing, finite element modeling, development of an optical egg counter, otolith applications, and biochemical condition indices.
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From page 106... ...
The present limitations of the offshore program in SABRE will limit the usefulness of these technologies. Otolith aging studies are state of the art and are essential for SABRE to determine birthdate distributions of survivors.
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From page 107... ...
are highlighted, should be considered. Synthesis documents on menhaden biology and shelf physics of the South Atlantic Bight will be useful.
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From page 108... ...
The optical particle counter has been modified and developed to sample menhaden eggs. The application of metabolic enzyme analyses to determine the nutritional condition of menhaden larvae apparently is successful.
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From page 109... ...
Planning en c/ Management Many fee' that SABRE is the best of COP programs in the sense that an effective partnership has been formed, much of it before COP formally was established, by combined efforts of NOAA and academic scientists. The partnership and team continue to be strong.
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From page 110... ...
South AtIantic Bight Recruitment Experiment.
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