Archive - Spring 2010


Santa Cruz Municipal Wharf	Monterey Municipal Wharf II	Phytoplankton Sampling Home About Is the Ocean Blue? Color System Putting It All Together About Data Links Phyto ID Gallery CeNCOOS Kudela Lab MB HAB Portal SCOOP Archives Spring 2010 Summer 2010 Fall 2010
Week of May 31	Week of May 31
Sample date: Wednesday, June 2, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago- ------------------------------------------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: Rare Cochlodinium.: None observed Full report: Sampler: Jenny Lane Sampling time: 7:00 am SCW local conditions Water color: Green (NOAA color: 10GY 2/4) Water temperature: 14.3 C Water visibility: 8 ft Water conditions: Calm Tide: Falling; Low at 8:19 am (-0.43 ft) Sky: Partly cloudy Surf reports: Mixed swell (SW and NW), 3-4 ft surf KudelaHawk weather Air temperature: 54.7 F Wind: NNW, 3.0 mph Solar radiation: 101 watts/m^2 NDBC buoy 46042 Significant wave height: 4.3 ft Swell height/direction: 4.3 ft/SSW Wind wave height/direction: 1.3 ft/WNW Sampling observations Surface foam: None observed. Net tow: Light orange. Week-to-week observations of particular note: - Pseudo-nitzschia 'abundant' (>50%). - All other genera 'rare' (<1%); increased diversity. Assemblage observations: Diatoms: Pseudo-nitzschia Other diatoms: each <1% of assemblage (i.e. "rare") Asterionellopsis Chaetoceros Coscinodiscus Detonula Ditylum Eucampia Guinardia Lauderia Navicula Pleurosigma Skeletonema Stephanopyxis Thalassionema Thalassiosira Tropidoneis Dinoflagellates: None observed in relative abundance >1%. Other dinoflagellates: each <1% of assemblage (i.e. "rare") Boreadinium-like Ceratium Dinophysis Gonyaulax Gymnodinium Gyrodinium Lingulodinium Noctiluca Polykrikos Prorocentrum Protoperidinium Pyrocystis Scrippsiella-like Other: Phaeocystis	Sample date: Tuesday, June 1, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago---------------- -------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: None observed Cochlodinium.: None observed Full report: Sampler: Jason Smith Sampling time: 09:55 am Monterey local conditions Water color: dark olive green Water temperature: 13.6 C Water visibility: 3m Tide: Rising, 0m, high at 08:41 Sky: Overcast Weather Air temperature: 13.5 C Wind: WSW 1-2.5 mps Impressions: Net chlorophyll rebounded (ca 5X to 3.54 ug/L, by in vivo fluorescence) following a sunny Memorial Day weekend. Pseudo-nitzschia remain dominant and increased in abundance (217,415 cells/L; 16% delicatissima class). Dinoflagellates have also increased in abundance, led by Boreadinium-like cells (2,315 cells / L Assemblage observations: Diatoms: Chaetoceros Pseudo-nizchia Eucampia Guinardia Leptocylindrus Nitzschia Other diatoms: each <1% of assemblage (i.e. "rare") Pseudoguinardia Rhaphoneis Asterionella Bacteriastrum Stephanopyxis Pleurosigma Thalassiothrix Skeletonema Melosira Corethron Lauderia Navicula Cylindrotheca Thalassiosira Coscinodiscus Dinoflagellates: Prorocentrum micans Gonyaulax spinifera Protoperidinium Boreadinium Other dinoflagellates: each <1% of assemblage (i.e. "rare") Akashiwo sanguinae Ceratium tripos Scrippsiella Gymnodinium, large pink Pyrocystis Other: Phaeocystis
Week of May 24	Week of May 24
Sample date: Wednesday, May 26, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago- ----------------------------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: Rare Cochlodinium.: None observed Full report: Sampler: Jenny Lane Sampling time: 8:40 am SCW local conditions Water color: Dark green (NOAA color: 5GY 2/2) Water temperature: 12.5 C Water visibility: 4 ft Water conditions: Calm Tide: Rising; High at 10:57 am (3.87 ft) Sky: Foggy/overcast Surf reports: Mixed swell (SSW and NW), 2-4 ft surf KudelaHawk weather Air temperature: 54.7 F Wind: South, 1.0 mph Solar radiation: 252 watts/m^2 NDBC buoy 46042 Significant wave height: 6.6 ft Swell height/direction: 6.2 ft/NW Wind wave height/direction: 1.3 ft/SW Sampling observations Surface foam: Foam patches and foam lines were present in and around the sampling area. Net tow: Brown Week-to-week observations of particular note: - Pseudo-nitzschia 'abundant' (>50%). - All other genera 'rare' (<1%). Assemblage observations: Diatoms: Pseudo-nitzschia Other diatoms: each <1% of assemblage (i.e. "rare") Chaetoceros Coscinodiscus Ditylum Eucampia Guinardia Licomorpha Lithodesmium Navicula Odontella Pleurosigma Proboscia Skeletonema Stephanopyxis Thalassionema Thalassiosira Tropidoneis Dinoflagellates: None observed in relative abundance >1%. Other dinoflagellates: each <1% of assemblage (i.e. "rare") Boreadinium-like Ceratium Dinophysis Gonyaulax Lingulodinium Prorocentrum Protoperidinium Pyrocystis Other:	Sample date: Monday, May 24, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago------------------- -------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: None observed Cochlodinium.: None observed Full report: Sampler: Jason Smith Sampling time: 09:35 am Monterey local conditions Water color: green blue Water temperature: 11.8 C Water visibility: 4.5m Tide: Falling, high at 08:55 Sky: 95% cloud cover, clearing marine layer Weather Air temperature: 13.3 C Wind: WNW <1mps Impressions: Net chlorophyll exhibited a sharp decline (ca 4X to 0.74 ug/L, by in vivo fluorescence) following several days of strong onshore winds. Water temperature decreased by 1oC. In spite of apparent wind induced turnover, Pseudo-nitzschia spp retained their dominance in the community but declined in overall abundance (by ca 8X to 31,516 cells/L, with 75% seriata class cells). Pseudo-nitzschia chain lengths in excess of 25 cells were still common but joined by chlorotic cells as well. Dinoflagellates were scarce. Tintinids of various sizes were common and active in sample. Calanoids and nauplii reappeared in the samples and fecal pellets were more frequently observed. Assemblage observations: Diatoms: Chaetocerus Thalassiosira Pseudo-nizchia Eucampia Guinardia Pleurosigma Thalassionema Skeletonema Melosira Navicula Leptocylindrus Cerataulina Nitzschia Other diatoms: each <1% of assemblage (i.e. "rare") Pseudoguinardia recta Rhaphoneis Bacteriastrum Bacillaria Lauderia Dinoflagellates: Other dinoflagellates: each <1% of assemblage (i.e. "rare") Gonyaulax spinifera Other: Dictyocha Phaeocystis Acantharians ovoid colorless flagellate (1 um)
Week of May 17	Week of May 17
Sample date: Wednesday, May 19, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago ----------------------------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: Rare Cochlodinium.: None observed Full report: Sampler: Jenny Lane Sampling time: 7:20 am SCW local conditions Water color: Dark green (NOAA color: 5GY 2/2) Water temperature: 11.6 C Water visibility: 5 ft Water conditions: Calm Tide: Falling, Low at 8:33 am (-1.04 ft) Sky: Sunny Surf reports: Small swell (SSW and NW), 1-3 ft surf KudelaHawk weather Air temperature: 52.7 F Wind: NNW, 6.0 mph Solar radiation: 208 watts/m^2 NDBC buoy 46042 Significant wave height: 3.9 ft Swell height/direction: 3.9 ft/WNW Wind wave height/direction: 0.7 ft/WSW Sampling observations Surface foam: Foam formation on surface of the net tow. Net tow: Orange Week-to-week observations of particular note: - Pseudo-nitzschia 'abundant' (>50%). - Decrease in abundance of other (non-PN) chain-forming diatoms. - Mixed 'background' dino assemblage (Prorocentrum, Protoperdinium, Boreadinium-like, etc.). Assemblage observations: Diatoms: Pseudo-nitzschia Eucampia Skeletonema Other diatoms: each <1% of assemblage (i.e. "rare") Asterionellopsis Chaetoceros Ditylum Guinardia Hemiaulus Lauderia Licomorpha Lithodesmium Navicula Odontella Stephanopyxis Thalassionema Thalassiosira Tropidoneis Dinoflagellates: Prorocentrum Other dinoflagellates: each <1% of assemblage (i.e. "rare") Boreadinium-like Ceratium Dinophysis Gonyaulax Gymnodinium Gyrodinium Lingulodinium Protoperidinium Other: Dictyocha	Sample date: Wednesday, May 19, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago ------------------------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: None observed Cochlodinium.: None observed Full report: Sampler: Jason Smith Sampling time: 10:05 am Monterey local conditions Water color: olive green Water temperature: 12.85 C Water visibility: 2.5m Tide: Rising, high at 09:50 Sky: Sunny and clear Weather Air temperature: 14.2 C Wind: WNW 4mps Impressions: Spectacular morning at the wharf. Net chlorophyll declined from last sample (to 3.17 ug/L, by in vivo fluorescence). Pseudo-nitzschia spp retained and built upon their dominance in the community (243,453cells/L, 66% seriata class, ca 85% of biomass), in part due to an increase in delicatissima class cells. Pseudo-nitzschia chain lengths in excess of 25 cells were common. Centric diatoms accounted for remainder of community. Dinoflagellates were rare but actively swimming. Tintinids of various sizes were common and active in sample. On a side note this sampler was joined by a group of grade schoolers conducting benthic video surveys with an ROV of their own design, how times have changed! Assemblage observations: Diatoms: Chaetocerus Thalassiosira Coscinodiscus Pseudo-nizchia Eucampia Guinardia Thalassiothrix Skeletonema Leptocylindrus Pseudoguinardia recta Other diatoms: each <1% of assemblage (i.e. "rare") Asterionella Nitzschia Rhaphoneis Ditylum Thalassionema Hemialus Lauderia Navicula Bacillaria Licmophora Odontella Astermphalus Dinoflagellates: Other dinoflagellates: each <1% of assemblage (i.e. "rare") Prorocentrum micans Gonyaulax spinifera Protoperidinium Scrippsiella Gyrodinium Polykrikos Gymnodinium Boreadinium Other: Dictyocha Phaeocystis
Week of May 10	Week of May 10
Sample date: Wednesday, May 12, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago ------------------------------ Quick phyto report: Pseudo-nitzschia spp.: Common Alexandrium spp.: None observed Dinophysis spp.: Rare Cochlodinium.: None observed Full report: Sampler: Jenny Lane Sampling time: 8:05 am SCW local conditions Water color: Dark green (NOAA color: 5GY 2/2) Water temperature: 13.3 C Water visibility: 5 ft Water conditions: Calm Tide: Rising, High at 10:56 am (3.56 ft) Sky: Sunny Surf reports: Small NW windswell, 1-3 ft surf KudelaHawk weather Air temperature: 51.6 F Wind: NE, 1.0 mph Solar radiation: 336 watts/m^2 NDBC buoy 46042 Significant wave height: 8.9 ft Swell height/direction: 6.9 ft/NW Wind wave height/direction: 5.9 ft/NW Sampling observations Surface foam: None Net tow: Orange Week-to-week observations of particular note: - Chain-forming diatoms dominate the assemblage (Pseudo-nitzschia, Skeletonema, Leptocylindrus). - Highest abundance of Phaeocystis so far this year. - Chaetoceros: predominantly C. cf. socialis Assemblage observations: Diatoms: Pseudo-nitzschia Chaetoceros Eucampia Guinardia Lauderia Detonula-like Leptocylindrus Skeletonema Other diatoms: each <1% of assemblage (i.e. "rare") Asterionellopsis Corethron Coscinodiscus Ditylum Lithodesmium Odontella Proboscia Thalassionema Thalassiosira Tropidoneis Dinoflagellates: None observed in relative abundance >1% Other dinoflagellates: each <1% of assemblage (i.e. "rare") Boreadinium-like Ceratium Dinophysis Gonyaulax Gymnodinium Gyrodinium Lingulodinium Prorocentrum Protoperidinium Other: Phaeocystis	Sample date: Wednesday, May 12, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago --------------------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: None observed Cochlodinium.: None observed Full report: Sampler: Jason Smith Sampling time: 9:20 am Monterey local conditions Water color: dark olive green Water temperature: 11.35 C Water visibility: 4m Tide: Rising, high at 10:55 Sky: Partly sunny, clearing marine layer, 60% cloud cover Weather Air temperature: 13.3 C Wind: <1 mps Impressions: Following a week of upwelling favorable winds and intermittent rain squalls, a diatom bloom has arrived at this locale. Net chlorophyll increased by ca 5X over last sample (to 5.08 ug/L, by in vivo fluorescence). Dinoflagellates were rare in the sample. Pseudo-nitzschia spp were dominant in the community (157,802 cells/L, 87% seriata class) followed by Guinardia sp. and Eucampia sp. Pseudo-nitzschia chain lengths in excess of 15 cells were common. Tintinids of various sizes were common and active in sample. Assemblage observations: Diatoms: Chaetoceros Thalassiosira Pseudo-nizchia Guinardia Thalassiothrix Thalassionema Skeletonema Melosira Lauderia Navicula Leptocylindrus Nitzschia Pseudoguinardia recta Other diatoms: each <1% of assemblage (i.e. "rare") Rhaphoneis Cerataulina Stephanopyxis Asterionella Cylindrotheca Bacillaria Licmophora Odontella Tropidoneis Ditylum Lithodesmium Pleurosigma Rhizoselenia Dinoflagellates: Other dinoflagellates: each <1% of assemblage (i.e. "rare") Prorocentrum micans Gonyaulax spinifera Gyrodinium Lingulodinium polyedrum Other: Dictyocha Phaeocystis
Week of May 3	Week of May 3
Sample date: Wednesday, May 5, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago -------------------------- Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: Rare Cochlodinium.: None observed Full report: Sampler: Jenny Lane Sampling time: 8:15 am SCW local conditions Water color: Green (NOAA color: 10GY 2/4) Water temperature: 13.0 C Water visibility: 5 ft Water conditions: Calm Tide: Falling, Low at 10:43 am (0.33 ft) Sky: Sunny Surf reports: NW windswell, 2-3 ft surf KudelaHawk weather Air temperature: 52.7 F Wind: NNW, 7.0 mph Solar radiation: 353 watts/m^2 NDBC buoy 46042 Significant wave height: 10.8 ft Swell height/direction: 7.5 ft/NW Wind wave height/direction: 7.9 ft/NW Sampling observations Surface foam: None Net tow: Orange Week-to-week observations of particular note: - General increase in phytoplankton abundance and diversity. - Increase in Pseudo-nitzschia abundance. Assemblage observations: Diatoms: Pseudo-nitzschia Chaetoceros Eucampia Guinardia Lauderia Skeletonema Thalassiosira Other diatoms: each <1% of assemblage (i.e. "rare") Actinoptychus Asterionellopsis Bacteriastrum Corethron Coscinodiscus Ditylum Hemiaulus Leptocylindrus Licomorpha Lithodesmium Odontella Pleurosigma Proboscia Stephanopyxis Thalassionema Thalassiothrix Tropidoneis Dinoflagellates: Prorocentrum Other dinoflagellates: each <1% of assemblage (i.e. "rare") Amylax-like Boreadinium-like Ceratium Dinophysis Gymnodinium Gyrodinium Polykrikos Protoperidinium Other: Dictyocha Phaeocystis	Sample date: Wednesday, May 4, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago ----------- Quick phyto report: Pseudo-nitzschia spp.: Present Alexandrium spp.: None observed Dinophysis spp.: Rare Cochlodinium.: None observed Full report: Sampler: Jason Smith Sampling time: 10:50 am Monterey local conditions Water color: dark green Water temperature: 13.8 C Water visibility: 3.5m Water conditions: Tide: Rising, low at 10:37 Sky: Sun through haze, clearing fog Weather Air temperature: 14.5 C Wind: WNW, 1-2 mph Impressions: Net chlorophyll (0.88 ug/L, by in vivo fluorescence) increased slightly from last weeks sample. Diatoms remain dominant but at low numbers with Thalassiosira spp and Guinardia spp leading the pack. Seriata class Pseudo-nitzschia spp. were present (1,886 cells / L). Chain lengths were 3-7 cells. Dinoflagellates increased in abundance and diversity with Prorocentrum spp present. Several Dinophysis spp were observed in the live sample. Tintinids of various sizes were common and active in sample. Assemblage observations: Diatoms: Chaetocerus Thalassiosira Pseudo-nizchia Eucampia Guinardia Skeletonema Hemialus Lauderia Leptocylindrus Asterionella Cerataulina Pseudoguinardia recta Other diatoms: each <1% of assemblage (i.e. "rare") Pleurosigma Rhizoselenia Thalassionema Navicula Cylindrotheca Licmophora Stephanopyxis Rhaphoneis Nitzschia Dinoflagellates: Prorocentrum micans Gonyaulax spinifera Boreadinium Other dinoflagellates: each <1% of assemblage (i.e. "rare") Scrippsiella Gyrodinium spp. grey green Gymnodinium < 10 um brown Dinophysis accuminata Dinophysis fortii Dinophysis Ceratium furca Akashiwo sanguinae Other: Dictyocha spp Phaeocystis spp pale green flagellate (3 - 5 um)
Week of April 26	Week of April 26
Sample date: Wednesday, April 28, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago ______________ Quick phyto report: Pseudo-nitzschia spp.: Abundant Alexandrium spp.: None observed Dinophysis spp.: Rare Cochlodinium.: None observed Full report: Sampler: Jenny Lane Sampling time: 8:25 am SCW local conditions Water color: Green (NOAA color: 10GY 2/4) Water temperature: 13.5 C Water visibility: 8 ft Water conditions: Weak surge Tide: Rising, Low at 5:03 am (-1.12 ft) Sky: Partly cloudy Surf reports: Mixed swell (WNW-NW and SW), 4-6 ft surf KudelaHawk weather Air temperature: 51.1 F Wind: North, 2.0 mph Solar radiation: 224 watts/m^2 NDBC buoy 46042 Significant wave height: 8.9 ft Swell height/direction: 8.9 ft/WNW Wind wave height/direction: 2.0 ft/W Sampling observations Surface foam: None Net tow: Pale tan Week-to-week observations of particular note: - Increase in Pseudo-nitzschia abundance. - Increase in dinoflagellate abundance (Prorocentrum, Protoperidinium). - Decrease in detritus. Assemblage observations: Diatoms: Pseudo-nitzschia Guinardia Leptocylindrus Lauderia Eucampia Chaetoceros Skeletonema Thalassionema Other diatoms: each <1% of assemblage (i.e. "rare") Asterionellopsis Corethron Ditylum Fragilariopsis Hemiaulus Licomorpha Lithodesmium Navicula Odontella Paralia Pleurosigma Proboscia Thalassiosira Thalassiothrix Tropidoneis Dinoflagellates: Prorocentrum Protoperidinium Boreadinium-like Ceratium Other dinoflagellates: each <1% of assemblage (i.e. "rare") Dinophysis Gonyaulax Lingulodinium Polykrikos Other: Dictyocha	Sample date: Wednesday, April 28, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago _ __ Quick phyto report: Pseudo-nitzschia spp.: Present Alexandrium spp.: None observed Dinophysis spp.: None observed Cochlodinium spp.: None observed Full report: Sampler: Jason Smith Sampling time: 10:15 am Monterey local conditions Water color: green-blue Water temperature: 11.7 C Water visibility: 4m Water conditions: Tide: Rising, 1.5h to low Sky: sunny, 5% cloud cover Weather Air temperature: 14.1C Wind: WSW, 1-4 mph Impressions: Storm forecast for the beginning of the week past us by. Suspended sediment load decreased and water temperature has declined by 1oC. Net chlorophyll (0.52 ug/L, by in vivo fluorescence) was similar to last sample. Diatom abundances continued to decline and Guinardia spp were dominant. Seriata and delicatissima class Pseudo-nitzschia spp. were present although their total abundance continued its decrease 1,254 cells / L (66% delicatissima class). Chain lengths were 6-12 cells. Dinoflagellates were nearly absent, with only Prorocentrum spp observed in the live sample. Assemblage observations: Diatoms: Chaetocerus Thalassiosira Pseudo-nizchia Guinardia Thalassionema Skeletonema Lauderia Cylindrotheca Leptocylindrus Pseudoguinardia recta Other diatoms: each <1% of assemblage (i.e. "rare") Coscinodiscus Eucampia Thalassiothrix Corethron Navicula Licmophora Nitzschia Rhaphoneis Dinoflagellates: Other dinoflagellates: each <1% of assemblage (i.e. "rare") Prorocentrum micans
Week of April 19	Week of April 19
Sample date: Wednesday, April 21, 2010 At a glance: Today___________Last Week------ __2 Weeks Ago _____ Quick phyto report: Pseudo-nitzschia spp.: Common Alexandrium spp.: None observed Dinophysis spp.: None observed Cochlodinium spp.: None observed Full report: Sampler: Jenny Lane Sampling time: 8:18 am SCW local conditions Water color: Olive green (NOAA color: 10Y 3/4) Water temperature: 11.4 C Water visibility: <1 ft Water conditions: Strong surge Tide: Falling, Low at 10:46 am (-0.3 ft) Sky: Overcast, stormy Surf reports: Mixed swell (WNW-NW and SSW), 4-7 ft surf KudelaHawk weather Air temperature: 51.4 F Wind: NNW, 7.0 mph Solar radiation: 374 watts/m^2 NDBC buoy 46042 Significant wave height: 20.0 ft Swell height/direction: 17.4 2ft/NW Wind wave height/direction: 9.8 ft/NW Sampling observations Surface foam: None Net tow: Brown Week-to-week observations of particular note: - Diatoms continue to dominate the assemblage (Pseudo-ntizschia, other chain-diatoms). - Decrease in Chaetoceros abundance. - Abundant detritus. Assemblage observations: Diatoms: Pseudo-nitzschia Guinardia Leptocylindrus Asterionellopsis Chaetoceros Eucampia Lauderia Skeletonema Thalassiosira Thalassionema Other diatoms: each <1% of assemblage (i.e. "rare") Actinoptychus Corethron Coscinodiscus Ditylum Licomorpha Lithodesmium Odontella Paralia Pleurosigma Rhizosolenia Stephanopyxis Tropidoneis Dinoflagellates: Prorocentrum Other dinoflagellates: each <1% of assemblage (i.e. "rare") Boreadinium-like Ceratium Dinophysis Gyrodinium Noctiluca Protoperidinium Other: Dictyocha	Sample date: Wednesday, April 21, 2010 At a glance: Today____________Last Week ______2 Weeks Ago ____ Quick phyto report: Pseudo-nitzschia spp.: Present Alexandrium spp.: None observed Dinophysis spp.: Present Cochlodinium spp.: None observed Full report: Sampler: Jason Smith Sampling time: 10:05am Monterey local conditions Water color: Dark blue green Water temperature: 11.8 C Water visibility: 2m Water conditions: Strong surge Tide: Falling, 1.5h to low Sky: Overcast, stormy Weather Air temperature: 11.0C Wind: WNW, 8-9 mph Impressions: Naturally, sampling day fell in the midst of a strong storm system impinging on the central coast. Suspended sediment load increased, associated with heavy rains, strong winds and receding tide at the time of sampling. Chlorophyll biomass (0.64 ug/L, by in vivo fluorescence) declined from last sample. Diatom abundances have declined associated with near elimination of Chaetocerus spp from the community. Seriata and delicatissima class Pseudo-nitzschia spp. were present although their total abundance decreased ca 3X from last sample to 3,985 cells / L (60% delicatissima class). Chain lengths were 6-12 cells. Dinoflagellates have increased in abundance with Prorocentrum micans (6,378 cells / L) leading the way. Dinophysis fortii and accuminata were present in significant numbers (1,087 cells / L). Assemblage observations: Diatoms: Chaetoceros Thalassiosira Skeletonema Leptocylindrus Guinardia Thalassionema Cerataulina Lauderia Detonula Eucampia Dactyliosolen Other diatoms: each <1% of assemblage (i.e. "rare") Lithodesmium Corethron Rhizosolenia Tropidoneis Ditylum Licomorpha Odontella Asterionellopsis Paralia Stephanopyxis Proboscia Pleurosigma Fragilariopsis Actinoptychus Coscinodiscus Dinoflagellates: Prorocentrum micans Dinophysis accuminata: Dinophysis fortii Protoperidinium spp Boreadinium cf cysts Other dinoflagellates: each <1% of assemblage (i.e. "rare") Akashiwo sanguinae Dinophysis tripos Phalachroma rotundatum Ceratium furca
Week of April 12	Week of April 12
Sample date: Wednesday, April 14, 2010 Quick phyto report: Pseudo-nitzschia spp.: Present Alexandrium spp.: none observed Dinophysis spp.: rare Cochlodinium spp.: none observed Full report: Sampler: Jenny Lane Sampling time: 8:35 am SCW local conditions Water color: Green (NOAA color: 10GY 3/4) Water temperature: 12.2 C Water visibility: 4 ft Water conditions: Mostly calm Tide: Rising, Low at 5:12 am (-0.07 ft) Sky: Partly cloudy Surf reports: Mixed swell (WNW and S), 2-4 ft surf KudelaHawk weather Air temperature: 52.3 F Wind: ENE, 5.0 mph Solar radiation: 282 watts/m^2 NDBC buoy 46042 Significant wave height: 5.2 ft Swell height/direction: 5.2 ft/W Wind wave height/direction: 1.3 ft/WNW Sampling observations Surface foam: None Net tow: Tan Week-to-week observations of particular note: - Diatoms continue to dominate the assemblage (Chaetoceros, other chain-diatoms). - Decrease in Prorocentrum abundance. - Increase in detritus. Assemblage observations: Diatoms: Chaetoceros Leptocylindrus Skeletonema Pseudo-nitzschia Eucampia Cerataulina Guinardia Lauderia Thalassiosira Thalassionema *Other diatoms: each <1% of assemblage (i.e. “rare”)* Lithodesmium Pleurosigma Corethron Odontella Asterionellopsis Ditylum Licomorpha Coscinodiscus Tropidoneis Fragilariopsis Nitzschia Rhizosolenia *Dinoflagellates:* Prorocentrum *Other dinoflagellates: each <1% of assemblage (i.e. “rare”)* Protoperidinium Boreadinium-like Gonyaulax Gymnodinium Gyrodinium Other:	Sample date: Wednesday, April 14, 2010 Quick phyto report: Pseudo-nitzschia: C (11,259 cells/L) Alexandrium spp.: none observed Dinophysis spp.: rare Cochlodinium spp.: none observed Full report: Sampler: Jason Smith Sampling time: 10:30 am Monterey local conditions Water color: Dark blue Water temperature: 12.5 C Water visibility: 4 m Water conditions: Mostly calm Tide: Rising, 1 hour before high Sky: Partly cloudy, winds 1-2mph Air Temp: 14.0 Impressions: Diatom dominated bloom persists at this site, and chlorophyll biomass (1.45 ug/L, by in vivo fluorescence) was similar to last sample. Diatom species richness increased. Numerous Chaetocerus spp. were joined by Asterionella spp and Guinardia spp. to balance out the diatom community. Seriata class Pseudo-nitzschia spp. (P. pungens and fraudulenta?) continued to increase in abundance (ca 5X from last sample to 11,259 cells / L) with long chains common in the sample. Dinoflagellates remained rare in the community. Fecal pellets and strands have replaced sediment as the primary suspended solids. Assemblage observations: *Diatoms:* Chaetocerus Thalassiosira Pseudo-nizchia Guinardia Lithodesmium Pleurosigma Thalassiothrix Skeletonema Corethron Hemialus Lauderia Odontella Leptocylindrus Asterionella *Other diatoms: each <1% of assemblage (i.e. “rare”)* Eucampia Ditylum Rhizoselenia Thalassionema Melosira Tropidoneis Navicula Licmophora Pseudoguinardia Dinoflagellates: *Other dinoflagellates: each <1% of assemblage (i.e. “rare”)* Eucampia Ditylum Rhizoselenia Thalassionema Melosira Tropidoneis Navicula Licmophora Pseudoguinardia Prorocentrum micans Dinophysis accuminata Dinophysis fortii Ceratium furca Gonyaulax spinifera Protoperidinium Gyrodinium Gyrodinium *Other:* Phaeocystis
Week of April 5	Week of April 5
Sample date: Wednesday, April 7, 2010 Quick phyto report: Pseudo-nitzschia spp.: present Alexandrium spp.: None observed Full report: Sampler: Jenny Lane Sampling time: 8:35 am SCW local conditions Water color: Green (NOAA color: 10GY 3/4) Water temperature: 12.1 C Water visibility: 5 ft Water conditions: Calm Tide: Falling, High at 5:26 am (4.05 ft) Sky: Sunny and clear Surf reports: Mixed swell (WNW and S/SW), 4-6 ft surf KudelaHawk weather Air temperature: 49.5 F Wind: North, 2.0 mph Solar radiation: 319 watts/m^2 NDBC buoy 46042 Significant wave height: 9.5 ft Swell height/direction: 9.5 ft/WNW Wind wave height/direction: 1.6 ft/NW Sampling observations Surface foam: None Net tow: Tan Week-to-week observations of particular note: - Diatoms abundant (Chaetoceros, other chain-diatoms). - Significant increase in Prorocentrum abundance. Assemblage observations: Diatoms: Chaetoceros Skeletonema Pseudo-nitzschia Leptocylindrus Lauderia Guinardia Lithodesmium Other diatoms: each <1% of assemblage (i.e. "rare") Eucampia Cerataulina Pleurosigma Thalassiosira Thalassionema Corethron Odontella Asterionellopsis Ditylum Licomorpha Thalassiothrix Coscinodiscus Tropidoneis Fragilariopsis Dinoflagellates: Prorocentrum Other dinoflagellates: each <1% of assemblage (i.e. "rare") Ceratium Dinophysis Polykrikos Protoperidinium Boreadinium-like Other:	Sample date: Wednesday, April 7, 2010 Quick phyto report: Pseudo-nitzschia: present Alexandrium spp.: none observed Dinophysis spp.: none observed Cochlodinium spp.:none observed Full report: Sampler: Jason Smith Sampling time: 10:20 am Monterey local conditions Water color: Green-blue Water temperature: 12.5 C Water visibility: 3 m Water conditions: Mostly calm Tide: Falling, 3 hour before low Sky: Sunny, winds N 4mph Air Temp: 13.7 Impressions Chaetocerus spp. dominated bloom persists at this site, but chlorophyll biomass (1.50 ug/L, by in vivo fluorescence) declined by ca. 50%. Diatom species richness increased. Seriata class Pseudo-nitzschia spp. (P. pungens and fraudulenta?) abundance increased ca. 5X (2641 cells / L) sufficient to attempt first isolations for the year. Dinoflagellates remained rare in the community. Assemblage observations: Diatoms: Chaetocerus Thalassiosira Pseudo-nizchia Guinardia Pleurosigma Thalassionema Skeletonema Corethron Lauderia Navicula Licmophora Leptocylindrus Asterionella Nitzschia *Other diatoms: each <1% of assemblage (i.e. “rare”)* Coscinodiscus Eucampia Ditylum Rhizoselenia Tropidoneis Cylindrotheca Bacillaria Odontella Stephanopyxis Pseudoguinardia *Dinoflagellates:* *Other dinoflagellates: each <1% of assemblage (i.e. “rare”)* Prorocentrum micans Ceratium furca Gonyaulax spinifera Protoperidinium Alexandrium Scrippsiella Lingulodinium polyedrum Gymnodinium Boreadinium cysts *Other:* Phaeocystis Dictyocha

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