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• interactions. scales. Continental Shelf Research 30 (1), 30 Research Shelf(1), 29-38. Continental scales. 5. Moline, M.A., Benoit-Bird, K.J., 5. K.J., I.C., Robbins, Schroth-M M.A., Moline, Benoit-Bird, 30 Shelf Research (1), 4. 50-65. J.M., Donaghay, to P.L.,Continental andSullivan, biology optics. consequences thin layer2010. dynamics: Coastal J.E.B., Rines, Oce consequences. and trophic persistence structure: planktonic 3. T.J.,Carr, Small-scale Cowles, 1998. R.A., M.E., Desiderio, 2. Holliday, D.V., Pieper, R.E., Greenlaw, zo C.F., J.K., Dawson, 1998. of sensing Acoustical small in scale vertical structures Bay, 30 Research Shelf(1), CA. 39-49. Continental J.V., Steinbuck, 1. M.A., O.M., McManus, Stacey,Cheriton, M.T., 2010. J.M., Towed Sullivan, of thin layer observations vehicle References (within depths desired at identification. and quantification sample for to layer) below net and attached layer, above with layer, profiler used Then water. filtered • of volume liter total a the to of in applicable calculation rate values allowed the bioluminescence This BP. measures extrapolate turbulent to the a meter through BP produce flow moves to A The water chamber bioluminescence. which 2B). enclosed stimulates the (Figure mechanically into that water sensor pumps flow turbidity that a impeller an and utilizes (BP), Bathyphotometer depth/pressure), for analyzed conducted also was • was period two-week Sampling a within 4). complete. Each (Figure data 1). changes to profile (Figure seasonal All any Pier minutes data. 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(autonomous method interactions. recent trophic on more impact a their as to well compared as was layers these bottle) of it positions (Niskin vertical method made the in sampling have change traditional the bioluminescence) A examined Bay. measuring Obispo instruments Luis and fluorometers • response fast layers. thin (i.e. these characterize sensors to possible and profilers) autonomous ims ftewtrcolumn water the of rdtoa apigmtoshv rvdiaeut o xmnn hnvria layers vertical thin examining for inadequate proved have methods sampling Traditional eiwdpoiedt Fgr )t eemn fadweeti aeswr present. were layers thin where and if determine to 3) (Figure data profile Reviewed and temperature, conductivity, measures (which CTD a contains profiler The at column water the sample to began profiler the PDT 0635 at 7/7/2010 on Beginning meters, few a to centimeters from ranging scale vertical a with environments, coastal in found commonly are of layers Thin hssuyeaie h lntncseiso hs hnlyr eaiet h eto h ae ounoe ekpro nSan in period week 2 a over column water the of rest the to relative layers thin these of species planktonic the examined study This 1 n r esset atn or ody.Teelyr r ihypoutv n a oti 07%o h total the of 50-75% contain can and productive highly are layers These days. to hours lasting persistent, are and 2-4 hnlyr r bqiosfaue ncatlevrnet ihapoon nlec ntrophic on influence profound a with environments coastal in features ubiquitous are layers Thin . iller,M., Waluk C.M.,Zelenke, B., Examination of Thin Layers of and Examination ofThinLayersPhytoplankton with EmphasisonBioluminescence Zooplankton 2010. Integrated measurements of acoustical and optical thinand optical layers acoustical of measurements 2010. Integrated iue1 td raSnLi a,SnLi bso Ca Obispo, Luis San Bay, Luis Area-San Study 1. Figure oplankton assemblages. Oceanography 11 Oceanography assemblages. (1), oplankton 18-23. structure and structure in intrusion a Monterey Northern low-salinity anography 111,anography 4-9. Sciences Pier Sciences Center for Center for A). Marine Marine Jordan Anderson II: horizontallength ,5 3, Figure 2. Bottle A) Sampling Niskin eetavne npafrs(i.e. platforms in advances Recent . and B) Profiler showing Profiler and B) Bathyphotometer. 2 1 California State University,California State Student Graduate Fresno University, State California B). 1 , Ian Robbins C). A). B). Depth (m) 10.0 Depth (m) Depth (m) Depth (m) 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 omnte fognss odtriewehrtecmuiiswr ttsial different. statistically were communities the whether determine to organisms) reduce of to communities and effort standardize • the to averaged at were water values only These abundance. that their ensuring Analysis and bottle present organisms niskin species. the rare the noting overestimating of of sample likelihood closure water the each trigger for to times lowered four net. then micron were 20 a • Weights using depth. concentrated was targeted sample The the sampled. reached was depth it targeted until column water • contd. 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ug/L Celcius Photons L-1/sec C) Chlorophyll Bioluminescence B) TemperatureA) Black boxes indicatesampling dates. Figure 4. Time Study Period. of Series Data throughout Profiler ih sopsdt nysmln toetm na vnn.Ti ol rvd behavior provide to would duration This flash evening. and kinetics an flash in the examine formation time layer also bioluminescence. of of could one source characteristics work the physical Future at determine the study. accurately supplement this sampling more to in form only examined layers as thin to where of opposed interpretation as in demonstrated night pattern the • to adherence of lack its explains which column, Noctiluca water the throughout oee,iseooyepan hsrsl sti pce a eue ls nest ncomparison in intensity flash another reduced for a t-tests for has similar species 0.018 this conducted < as I (P result deep). non-peaks this non-peak with in explains the than for its bioluminescence 0.048 However, of species, < peak P the and bioluminescent in species, non-peak bioluminescent abundance shallow a higher the of a abundance have the should comparing t-tests conduct lower scintillans to used in temperature then (i.e. but were body bioluminescence. collection sampling water less data • the profiler showing of of the also bioluminescence. period properties of in time physical time location moved the the the the dictated had By that period primarily during water salinity) time shows 4B). present and same clearly of (Figure this still This body 7/16/2010, bioluminescence were concentration. colder on of species a evident levels is Bioluminescent 7/19/2010, bottle body high niskin on water A very began warm centimeters meters. a shows few few 4A) a also a (Figure been of graph layers width temperature sample a the the had with is • method thick, the consideration profiler to fairly Another the attributed were method). to be they inferior each width. could as more in for this far layers However, dates prove sample 0.31). sampling would < the (two (P of size different width sample statistically not small were extremely methods the that • Results andConclusions uuewr ol xmn h etclmgaino htpako n opako hogotthe throughout zooplankton and phytoplankton of migration vertical the examine could work Future iue3sosa vnn rfl n71/00ntn etsta eesmld hs depths These sampled. were that depths noting 7/19/2010 on profile evening an shows 3 Figure the at looking In period. study two-week the across graphs series time three shows 4 Figure determined which t-test, a using compared and method each for calculated were Indexes Diversity Figure 5. Left) Noctiluca 5.Left) Figure scintillans 2 Right) Bioluminescent Bioluminescent Right) Noctiluca . Tbe1 iue5.Terslscnimdtehptei httebouiecn species bioluminescent the that hypothesis the confirmed results The 5). Figure 1, (Table . rtprdnu depressum Protoperidinium otlc scintillans Noctiluca rtprdnu depressum Protoperidinium (not to scale) and scale) to (not bloom . a uhmr bnatadeel distributed evenly and abundant more much was Non Non Peak* Depth hc eentsaitclysignificant. statistically not were which , Table ‐ ‐ Peak Peak

1.

Shallow Deep

Hackleman Abundance Acknowledgements Owen Bioluminescent

Hackleman Owen

of

Brian Noctiluca 7/19/10

Date Zelenke

3X 8X 2X Species

10 10 10

of 6 7 7

Sampling scintillans Noctiluca 7/20/10 Jason

1X 1X 5X , Felton ent

a

10 10 10

7 8 6