Download or read book Oregon II Cruise 89-06 (184) written by Gilmore Pellegrin (Jr.) and published by . This book was released on 1989* with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NOAA Ship Oregon II departed Pascagoula, Miss. on October 16,1989 to conduct a 35-day resource assessment survey in the northcentral and northwestern Gulf of Mexico. One day of survey time was devoted to sampling a dredge spoil site off Mobile Bay, Ala. Three port calls were made: one in Pascagoula on October 18 to embark a scientist, a second in Galveston, Tex. on November 1 to exchange scientific personnel and a third in Galveston on November 4 to recharge CO2 cylinders in the ship's engine room. The ship returned to Pascagoula on November 20. Objectives: 1) Sample the demersal fauna of the northern Gulf of Mexico in depths of 5 to 60 fathoms (fm). 2) Obtain length frequency measurements to determine population size structures. 3) Collect ichthyoplankton samples to determine the relative abundance and distribution of eggs and larvae of commercially and recreationally important fish species. 4) Obtain surface, mid-depth and maximum depth samples of temperature, salinity, dissolved oxygen and percent light transmission. 5) Compare catch rates between 40-ft semi-balloon shrimp trawls and 65-ft fish trawls. 6) Conduct gear comparison study with the R/V Pelican of the Louisiana Universities Marine Consortium. 7) Sample Corps of Engineers dredge spoil site off Mobile Bay, Ala. 8) Collect specimens for Panama City Lab for electrophoretic studies. 9) Collect specimens for Gloucester Lab for monoclonal antibody studies.