"Winter ecology of larval krill: quatifying their interaction with the pack ice habitat" Robin Ross and Langdon Quetin larval krill condition, pigment, growth data: gb6.whoi.edu/data12/sodata/rrossnew/ DMO: N. Copley 20100202: Dicky had started work on this dataset back in OCt. 2003 and I'm going to finish it up. There are 3 or 4 datasets: condition factor, growth, pigment condition factor files appear done: larvalkr2001cf.dat larvalkr2002cf.dat The first thing I noticed about this dataset is that the 2002 cruise was listed as LMG0105. First, there seems not to have been a cruise by that name in soglobec. Second, these folks *were* on cruise LMG0205. They did not submit any report for the cruise report LMG0106 but there was a report for LMG0205. Added Ross and Quetin to the bcodmo database people table. sample.sum.xls files - column header: "Pigment samples from larvae (y or n)": items for this column appear to be experiment/sample id's, not y or n. blanks may mean 'n' but can't say, so use 'nd'. blanks under IGR appear to be same value as cell above - these are sequential numbers that the data enterer probably didn't want to keep entering. ** blank in IGR should be nd, not same value as above. determined this from looking at pdf of publication by Ross et al, DSR 2004 and from Ross' email response, 4/1/2010. (20100413) 20100203: Unsuccessful getting 'toplevel' files to work and since there are only 2 files for each object, I put merged them into one, in the xls files and then as .dat file. I also sorted the data so that lengths increase (condition factor) or sorted by stage (growth) ***larvalkrillgr.dat loses 2091-2048=43 lines of data with the restructure. Need rs ver. 2 here.*** ***2/22/22: defgb was updated recently on globec, so I used rs ver. 2 in the larval_krill_gr objects - over 1000 lines previously lost became visible. - NJC *** 20100204: Entered metadata via Osprey to BCO-DMO. Dicky asked me to add lat, lon, time to the files. This is a bit like untangling a chunk of wet curly hair but is possible. ?? It seems that the dates don't always match up between the summary file and the event log. It could be that one is gmt or that the krill dates are not for the dive but for the expt. ?? I included a table of the mismatched dates in the metadata. 20100413: went over email from Robin Ross (below) and made corrections/changes to metadata and to data (pigments, summary, growth - put dashes in where I wrongly thought there were repeats from row above). ****************************************************** ****************************************************** On 4/1/2010 7:39 PM, Robin Ross wrote: > Hi Nancy, > > We have finally had a chance to get back to your request (moving labs/storage units was a bear). > > There are a couple of general comments/edits, and then we will answer your specific questions. > > 1) when listing the contact persons, please list us both as Dr. and both as Principal Investigator - this is not consistent within the files. Also our email addresses have changed. We are now > ross@msi.ucsb.edu > quetin@msi.ucsb.edu done > > 2) we see that you took the processing description from the LMG0205 final report - which makes sense since we were too late for the final report for LMG0106. Below is a summary statement for LMG0106 to put into the general paragraph: > > During LMG0106 we occupied two 4-5 day ice stations (Robert and Billy) and sampled several other ice floes opportunistically. We conducted 10 instantaneous growth rate experiments, and 4 whole body clearance time experiments to determine gut passage time (decline in pigment content over time). We also sampled larvae at two additional sites for initial body pigment content (whole body fluorescence), and at 4 sites for condition factor. The under-ice algal community was sampled at one site. Length and stage frequency determinations were also determined. added above paragraph to Dataset description section for all 4 data objects. > > 3) larval_krill_pig > WBC does not mean fecal pellet production, but means whole body clearance experiment changed this in the Processing description > 'time-sample' = time of sampling for pigment content after collection; decline of pigment content with time used to calculate time to clear the gut of pigment changed the parameter description text. > In several cases the pigment data (for LMG0205, WBF 1,2,3 and 11) do not have corresponding lats/longs/, day, time or yrday. That information is in the sample summary sheet and should be cited here. It seems as if your convention was to add that information to the larval data is available, but the addition is not consistent. I was misinterpreting the '-' values in the summary. > > 4) The same is true for the growth data - the addition is not consistent. The information is in the sample summary. Same issue here - there were multiple possible events in the summary file that could be matched to the growth experiments. I couldn't be sure which was the right one and didn't want to make presumptions. > In describing the parameter 'growth', please add after nm= not measured, nd=not molted done > Sample id is really experiment number. I clarified this in the parameter definitions but if you prefer, I can change the variable name. > For the stage abbreviations you did well. SA does mean subadult, iM is immature male and MM is mature male. ns means no stage determined (usually due to damage) and the other 3 abbreviations mean that as well (US, NT and ?). changes made. > > 5) yes, that was a typo or oversight and 0105 should have been 0205 > > 6) for the dates of the dives and trawls - there are two different explanations > - for the dives our own dive log says 15 Aug so a typo > - but for the trawls, our convention is to use GMT time and date so we don't have to keep track of where we are in the daylight savings time with Chile, so our dates of 8/26 and 8/28 were GMT dates (night time tows). > We see that you are using local time and date, so that resolves any conflict with the event log. > > We are attaching two papers that reference these data - one a Ross et al. 2004 and the other a Quetin et al. 2007. > > Please let us know if you have any more questions. > > Regards, > Robin and Langdon > > Nancy Copley wrote: >> Robin & Langdon: >> >> By way of introduction, I'm working with Bob Groman and Dicky Allison at the Data Management Office for GLOBEC, now rolled into the Biological and Chemical Oceanography Data Mgmt. Office (BCO-DMO ). I would like to begin with my apology that your larval krill data from the Southern Ocean GLOBEC project got buried for quite some time. It has now been unearthed and I've put it up for you to look at and hopefully answer a few of my questions before it's made final. >> Below are the 4 datasets for each of the 4 sets of excel files you sent: sample summary, condition factor, growth studies, and pigments. Click on the links to see the background information for that dataset and near the top of that page, click on the green *Get Data* link to see your data. Click on the 'Next Level' button at the top to drill down into the data or on a _blue_ datum to see the data under that particular information. For example, to see only the data for LMG0106, click on that or to see just the results from animals collected on Dive4, click on that. >> Dataset Description Project(s) Validated Version >> larval_krill_cf Condition factor SOGLOBEC no 20100203 >> larval_krill_gr Growth study SOGLOBEC no 20100203 >> larval_krill_pig pigments SOGLOBEC no 20100203 >> larval_krill_sum sample summary SOGLOBEC no 20100203 >> >> >> There are two ways to view the documentation (the background information). One is the way you already tried, by going through the BCO-DMO data object name. The other is by clicking on the 'Documentation' button at the top of the data. You can also go quickly from one dataset to another via the 'Directory' button and look under 'larval_krill_..'. >> >> Please look at the Parameter Descriptions in the table for each of the 4 datasets to check that I described your variables correctly. Most of the time, the variables were described at the top of the excel file but sometimes an entry wasn't clear so I guessed at their meaning. For example, for the growth study, the stage is listed variously: larval stage: F = furcila, J=juvenile, SA=subadult?, IM=immature male?, MM=mature male, ns=no stage, US=?, NT=?. Could you please tell me if I got them right and fill me in on those I left as '?'. >> >> I should also note that although the cruises are labeled in the excel files as LMG0105 and LMG0106, I could find no sign of a cruise LMG0105 but did find your group on LMG0205, so I took the liberty to change that cruise number. >> >> Also, in the summary for LMG0205, the following dates did not agree between the excel datafile and the date in the eventlog. The eventlog date was substituted in the following cases: >> >> inst date in datafile date in eventlog >> Dive9 8/16/2002 8/15/2002 >> Dive10 8/16/2002 8/15/2002 >> Trawl5 8/26/2002 8/25/2002 >> Trawl5 8/26/2002 8/25/2002 >> Trawl11 8/28/2002 8/27/2002 >> >> >> If you have any papers that you'd like referenced in the 'Description', please send the reference or the pdf if you'd like it linked to the data. >> >> Sorry again for the delay and thanks in advance for you help on this last step. >> Nancy Copley >> >>> >>> ------------------------------------------------------------------------ >>> >>> Subject: >>> southern ocean globec data files >>> From: >>> Robin Ross >>> Date: >>> Tue, 9 Sep 2003 18:17:05 -0700 >>> To: >>> dallison@globec.whoi.edu >>> >>> To: >>> dallison@globec.whoi.edu >>> CC: >>> robin@icess.ucsb.edu, langdon@icess.ucsb.edu >>> >>> >>> Hello Dickie, >>> >>> We have some files ready for the Southern Ocean GLOBEC database. >>> >>> The two files named sample.sum2001 and -2002 show the station dates and locations and what types of samples were collected at those stations. >>> >>> The two files named larvalkrill.growth2001 and -2002 have the results of the instantaneous growth rate experiments done on board. >>> >>> The two files named larvalkrill.pigment2001 and -2002 have the results of the pigment extraction (chlorophyll) on larval krill collected from under the ice. >>> >>> On each file the first line is a header line with the cruise identification to the right of an !, and with a number to the left of the ! that indicates the number of columns of data. The following rows give the labels (and units) for the data in the columns. >>> >>> We hope that the files can be opened, and that the explanation makes sense. >>> >>> Regards, >>> >>> Robin Ross and Langdon Quetin >>> (two winter cruises on the LMG) ****************************************************** ******************************************************