zodtrawl 9798pal dates at Palmer: 13 Nov 97 to 4 Apr 98; dates of sampling: 18 November to 28 March Dives and zodiac trawls to collect krill Zodiac trawls were conducted in the immediate Palmer area (Palmer grid; Waters and Smith, 1992.) The following variables are recorded: Event, Tow, Grid, Date, Time Begin (GMT), Time End (GMT), Day/Night, Fishing Time, Begin.Latitude (dd.ddd), Begin.Longitude (dd.ddd), End.Latitude (dd.ddd), End.Longitude (dd.ddd), Water Depth (m), Cloud Cover, Ice cover, Gear/Net, Tow type, Depth interval (m), Wire out, Wire angle, Vol.Filtered(m^3), total length/mature female done? (event # and number krill measured), IGR done? (event #), animals frozen for condition factor and/or chemical composition? (event # and number of individuals and/or bulks), Comments (other species in catch etc.) The volume of water filtered during the tow is calculated with the information from a General Oceanics flowmeter. Target tows were conducted every 10 d to 2 weeks to collect krill for length frequency determinations and growth rate experiments. Samples of 10-20 individual krill were frozen twice during the spring and once in the late summer or early fall for later determination of wet weight on station and condition factor at UCSB. Early in the season krill were collected by SCUBA divers with aquarium nets. These krill were generally under rafted pack ice. Nets were deployed with a winch and A-frame from a Mark V zodiac, the Rubber Duke. For all zooplankton tows, a 1-m diameter, 500-µm mesh ring net with a cod end with 335 µm mesh was deployed. A targetted tow was performed when a krill school was detected with the 50 kHz furuno echosounder on board the Rubber Duke. Once the cod end was retrieved, krill to be used for live experiments were placed in several seawater-filled buckets or coolers, keeping densities as low as possible. On occasion krill were seen swarming around the dock at Palmer Station. These krill were collected with aquarium nets. Measurements of the length frequency distributions and condition factor measurements of the krill populations in the Palmer Basin region yield information on seasonal changes in the demographics of the krill population (on/offshore movements) and in the physiological condition of the krill. In conjunction with the bioacoustics determinations of biomass the data characterize the abundance and size character of krill in this nearshore region throughout the season. Growth rate results are found in krillgrowth. Palmer LTER, krill collections ascii, comma separated variables http://www.icess.ucsb.edu/lter ~lter/data/9798pal/zodtrawl/ zodtrawl.list Robin M. Ross, Langdon B. Quetin none Robin M. Ross, Langdon B. Quetin Marine Science Institute University of California at Santa Barbara Santa Barbara, CA 93106 robin@icess.ucsb.edu, langdon@icess.ucsb.edu LBQuetin, JL Jones, D Conlin, CT Shaw, J Kneebone LBQuetin, JL Jones, D Conlin, CT Shaw, J Kneebone JL Jones, RM Ross RM Ross 5 June 2000 Waters, K. J. and R. C. Smith, 1992. "Palmer LTER: A Sampling Grid for the Palmer LTER Program." Antarctic Journal of the United States 1992. Datafile Form V1.2 for describing a data file.