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Full-Text Articles in Mechanical Engineering
Directional Wave Spectra Using An Acoustic Doppler Current Profiler, William T. Stockhausen
Directional Wave Spectra Using An Acoustic Doppler Current Profiler, William T. Stockhausen
Dissertations, Theses, and Masters Projects
No abstract provided.
Life History And Fisheries Ecology Of Weakfish, Cynoscion Regalis, In The Chesapeake Bay Region, Susan Lowerre
Life History And Fisheries Ecology Of Weakfish, Cynoscion Regalis, In The Chesapeake Bay Region, Susan Lowerre
Dissertations, Theses, and Masters Projects
Otoliths, scales, dorsal spines, and pectoral fin rays were compared to determine the best hardpart for ageing weakfish, Cynoscion regalis. Sectioned otoliths showed the clearest marks and were validated by the marginal increment method for ages 1-5. Traditionally-used scales were found to be less-precise and to underage older fish. Most weakfish from the Chesapeake Bay region were 200-600 mm TL and ages 1-4. Weakfish were not fully-recruited to commercial foodfish grades until age 2. Maximum observed age was 17 from a Delaware Bay fish collected in 1985. Current maximum observed ages were age 12 in Chesapeake Bay and age 11 ...