Marine Fisheries Service cruises to assess the relative abundance of 

 the Pandalid shrimp resource in the Gulf of Alaska during 1970-72 

 are presented. 



Station data are arranged in tabular form and provide 

 information on location, depth, time and distance trawled, type of 

 fishing gear used, and species catch by weight. Bottom 

 temperatures and salinities for some studies are also included. 



89. Compendium of Juvenile Menhaden Surveys in Coastal 

 Streams of the Northern Gulf of Mexico. By William R. 

 Turner, George N. Johnson, and Herbert R. Gordy. 

 August 1974, 189 p. on 3 microfiche. 



ABSTRACT 



Catches of juvenile Gulf menhaden with two-boat surface trawls 

 in coastal streams along the northen Gulf of Mexico are compiled for 

 the period from 1964 through 1969. The catches are presented 

 chronologically with accompanying hydrological data (including 

 Secchi disc measurements, salinity determinations, and surface 

 water temperatures) collected at each sampling station. Maps are 

 provided defining the various areal designations, streams, and 

 sampling stations. 



90. Hydrographic Observations in Tampa Bay and Adjacent 

 Waters— 1972. By Carl H. Saloman and L. Alan Collins. 

 August 1974, 176 p. on 3 microfiche. 



ABSTRACT 



Hydrographic data include water temperature; salinity; total 

 phosphorus; total Kjeldahl nitrogen; pH; dissolved oxygen; 

 tubidity; water transparency; chlorophyll a, 6, and c, astacin and 

 nonastacin carotenoids; and primary productivity based on 

 chlorophyll a extraction. Methods of collecting and analyzing 

 samples are described. Tables summarize data collected from 30 

 permanent stations by month and area. Additional tables 

 summarize the mean, range, and number of observations of samples 

 taken twice daily at the Laboratory dock. 



91. Phvtoplankton Pigment and Production Measurements 

 in the California Current Region, 1969-72. By R. W. 

 Owen, Jr. and C. K. Sanchez. November 1974, 185 p. on 3 

 microfiche. 



ABSTRACT 



Phytoplankton production, standing stocks, and some relevant 

 environmental characteristics were for the first time systematically 

 measured in the California Current system during the period from 

 1969 through 1972. This work describes the systems and methods of 

 measurement, and presents the data obtained. 



92. Zooplankton, Water Temperature, and Salinities in the 

 Columbia River Estuary, December 1971 Through 

 December 1972. By David A. Misitano. August 1974, 

 31 p. on 1 microfiche. 



ABSTRACT 



Sampling was conducted at seven stations in the Columbia River 

 estuary throughout 1972 to provide baseline information on species 

 diversity, relative abundance, and seasonal occurrence of zooplank- 

 ton, as well as ambient water temperatures and salinities. 



93. Catch Per Unit Effort and Mean Total Length of Brown 

 Shrimp, Permeus aztecus Ives, Taken by Trawl in the 

 Galveston Bay System, Texas, 1963 67. By Lee Trent, 

 Edward J. Pullen, Genevieve Adams, and Gilbert 

 Zamora, Jr. September 1974, 42 p. on 1 microfiche. 



ABSTRACT 



This report presents catches per unit effort and mean lengths for 

 brown shrimp, Penaeus aztecus Ives, taken with a trawl and trawl 

 cod end cover from the Galveston Bay system, Texas during 1963-67 



by personnel of the Estuarine Program, National Marine Fisheries 

 Service, NOAA, Galveston. Texas. The number of stations at which 

 samples were taken ranged from 58 in 1963 to 16 in 1967. Sampling 

 frequency varied from weekly to monthly; in 1967 samples were not 

 taken throughout the year. Stations were located within three 

 habitats— peripheral, open water, and channel— within each bay 

 area of the system except West Bay. Catch per unit effort was 

 defined as the number of brown shrimp caught per 5-min tow in a 

 0.6 X3.0 m otter trawl and the number caught per tow in the cod 

 end cover. 



94. Benthic Macroinvertebrates and Sediments From 

 Upland Canals in Tampa Bay, Florida. By John R. Hall 

 and William N. Lindall, Jr. September 1974, 221 p. on 4 

 microfiche. 



ABSTRACT 



Samples from 34 stations in upland canals of Tampa Bay, Fla., 

 contained 139 species and 66,326 specimens of benthic macroinver- 

 tebrates. Collections were made from August 1970 through 

 November 1971 . Tables give monthly counts by species, individuals, 

 and total individuals per square meter. A summary of the total 

 number of species and individuals, and their monthly range and 

 mean is presented. Mean grain size, standard deviation, skewness, 

 kurtosis. and weight percentage of granule, sand, silt, and 

 clay sized sediment particles are also recorded. 



95. Data of the Biology Phase, Florida Portion, Cooperative 

 Gulf of Mexico Estuarine Inventory. By J. Kneeland 

 McNulty, William N. Lindall, Jr., and Ernest A. Anthony. 

 September 1974, 229 p. on 4 microfiche. 



ABSTRACT 



Data of the Florida portion of the Biology Phase of the 

 Cooperative Gulf of Mexico Estuarine Inventory are recorded. 

 They consist of the catches made by seine, trawl, and plankton net 

 at Chokolo.skee in the Ten Thousand Islands. Bokeelia in Charlotte 

 Harbor. Maximo Point in Tampa Bay, Atsena Otie Key near Cedar 

 Key. and at the mouth of the St. Marks River. Monthly samples 

 were taken from April 1968 through March 1969. Water 

 temperature and salinity at the times of sampling are recorded. 



96. Groundfish and Crab Resources in the Gulf of Alaska- 

 Based on International Pacific Halibut Commission Trawl 

 Surveys, May 1961-March 1963. By Steven E. Hughes. 

 October 1974, 87 p. on 2 microfiche. 



ABSTRACT 



Results of a trawl survey of groundfish and crab resources 

 occurring between Cape Spencer and Unimak Island, Alaska, are 

 presented. The survey was conducted by the International Pacific 

 Halibut Commission during 1961 63; catch records from 1.272 

 stations were recently analyzed and prepared by the Northwest 

 Fisheries Center. Information presented snows seasonal patterns of 

 geographic and depth distribution, in addition to relative abundance 

 of all major species occurring in the Gulf of Alaska. For each group 

 (flatfish, roundfish. rockfish. elasmobranchs. and crab) and major 

 species, a brief narrative of results is accompanied by ligures 

 snowing percentage and catch rate information by areaseason- 

 depth categories. In addition. 40 charts show detailed seasonal 

 information on eight major groundfish as well as king and Tanner 

 crabs. 



97. Hydrographic Observations From a Natural Marsh and 

 a Marsh Altered by Dredging, Bulkheading, and Filling 

 in West Bay, Texas. By Edward J. Pullen and Lee Trent. 

 October 1974, 15 p. on 1 microfiche. 



ABSTRACT 



Hydrographic data were collected from a natural marsh and a 

 marsh altered by dredging, bulkheading. and filling in West Bay. 

 Texas, Water samples were taken at 2 wk intervals during the day 

 and night at 10 stations from 25 March to 21 October 1969. This 

 report contains the location, depth, date, and time the samples were 

 taken and corresponding measurements of water temperature. 



