Week of July 24, 2023

Santa Cruz Wharf

Wednesday, July 26, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
Marine layer at the wharf this am.  Net tow was similar to last week – phytoplankton biomass was about the same, diatoms were the dominant group, and Eucampia was the most abundant genus.  Pseudo-nitzschia were seriata-size, but no P. australis or P. multiseries were seen.  Alexandrium counts decreased slightly this week.

Dinoflagellates:
R: Ceratium
R: Margalefidinium
R: LRB
R: Protoperidinium
R: Prorocentrum
R: Alexandrium
R: Akashiwo
R: Dinophysis
R: Boreadinium
R: Gymnodinium
R: Oxyphysis
R: Polykrikos

Diatoms:
A: Eucampia

R: Guinardia
R: Detonula
R: Thalassiosira
R: Chaetoceros
R: Coscinodiscus
R: Lauderia
R: Skeletonema
R: Leptocylindrus
R: Ditylum
R: Pseudo-nitzschia
R: Pleurosigma
R: Navicula
R: Tropidoneis
R: Asteromphalus

* Environmental Information *
Time: 8:45 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 15.5 C
Water Conditions: Calm
Water Color/Code: Dark green, 10G 2/6 (#12)
Water Visibility: 8 ft
Tide: Falling, Low – 10:20, 2.1 ft
Surf Report: NW swell, 0-1 ft

NDBC buoy 46042
– Significant wave height: 4.6 ft
– Swell height/direction: 3.3 ft, NW
– Wind wave height/direction: 3.0 ft, NW

Weather Conditions (KudelaHawk)
Sky: Marine layer
Air Temperature: 55.4 F (13 C)
Wind: 4 mph, ENE
Solar radiation: 179 watts/m^2

Monterey Wharf II

Wednesday, July 26, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
Another overcast morning at the wharf, complete with drizzle! “Eucamp” make this up – yes, the Eucampia bloom still persists, with HAB species (Pseudo-nitzschia, Akashiwo, Dinophysis, Cochlodinium) present in very low background concentrations once again. I noted something that looked a lot like Pyrophacus as being common, our resident expert (aka Hannah) will be back next week and can confirm.

Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Polykrikos spp.
R: Cochlodinium spp.
R: Gymnodinium spp
C: Pyrophacus spp.

Diatoms:
R: Chaetoceros spp.
P: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
P: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Melosira spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Leptocylindrus spp.
R: Detonula spp.
R: Striatella spp.
A: Eucampia

Others:
R: Phaeocystis spp. (singletons and clumps)

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0809 PT
COLLECTOR: Holly Bowers

Water Temperature: 16.4°C
Water Conditions: flat
Water Color: 5Y 2/2
Visibility: 2.5 m
Tide: Falling, 0.79 m, low at 1020 h
Chlorophyll: 32.68mg/m^3 by in vivo RFU

Sky: overcast, 100% cloud
Air Temperature: 12.78°C
Wind: NA, 2.68m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of July 17, 2023

Santa Cruz Wharf

Wednesday, July 19, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
Another cool morning with a marine layer at the wharf.  Net tow was similar to last week with an increase in phytoplankton biomass.  Eucampia remains the most abundant genus.  The handful of Pseudo-nitzschia observed were seriata-size, but no P. australis or P. multiseries were seen.  Alexandrium counts are holding steady.

Dinoflagellates:
R: Ceratium
R: Margalefidinium
R: LRB
R: Protoperidinium
R: Prorocentrum
R: Alexandrium
R: Akashiwo
R: Dinophysis
R: Boreadinium
R: Gymnodinium
R: Oxyphysis
R: Polykrikos
R: Gyrodinium

Diatoms:
A: Eucampia
P: Guinardia
P: Detonula

R: Thalassiosira
R: Chaetoceros
R: Coscinodiscus
R: Lauderia
R: Dactyliosolen
R: Ditylum
R: Pseudo-nitzschia
R: Pleurosigma
R: Odontella
R: Tropidoneis
R: Asteromphalus

Other:
R: Dictyocha

* Environmental Information *
Time: 8:45 am
Collector: MC/GG/HA

Water Conditions (SCW)
Water Temperature: 15.5 C
Water Conditions: Calm
Water Color/Code: Dark green, 10G 2/6 (#12)
Water Visibility: 4 ft
Tide: Rising, Low – 6:46, -0.5 ft
Surf Report: NW swell, 1-2 ft

NDBC buoy 46042
– Significant wave height: 5.6 ft
– Swell height/direction: 5.2 ft, NW
– Wind wave height/direction: 1.3 ft, WNW

Weather Conditions (KudelaHawk)
Sky: Marine layer
Air Temperature: 55 F (12.9 C)
Wind: 1.8 mph, N
Solar radiation: 70 watts/m^2

Monterey Wharf II

Wednesday, July 19, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
While the rest of the state bakes in the heat, we remain in our cool pocket – puffy vests and a heated car seat were needed on this chilly morning at the wharf after some overnight mist. Surface waters were clean and flat, and the Eucampia bloom from last week persists. Just a smattering of HAB species were present in very very low numbers: Pseudo-nitzschia, Dinophysis, Alexandrium, Cochlodinium, and Akashiwo.

Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Scrippsiella spp.
R: Polykrikos spp.
R: Cochlodinium spp.
R: Gymnodinium spp
R: Boreadinium cf

Diatoms:
R: Chaetoceros spp.
P: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
P: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Nitzschia spp.
A: Eucampia

Others:
R: Phaeocystis spp. (singletons and clumps)

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
A: rotifers

* Environmental Information *
TIME: 0805 PT
COLLECTOR: Holly Bowers

Water Temperature: 14.3°C
Water Conditions: flat
Water Color: 10Y 2/2
Visibility: 2.5 m
Tide: Rising, -0.04 m, low at 0700 h
Chlorophyll: 44.74 mg/m^3 by in vivo RFU

Sky: overcast, 100% cloud
Air Temperature: 12.22°C
Wind: NA, 3.58m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of July 10, 2023

Santa Cruz Wharf

Wednesday, July 12, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Present

* Impressions *
It was cool and misty this morning at the wharf.  And just like that, the diatoms are back.  The phytoplankton assemblage shifted dramatically from last week and the net tow was mostly diatoms.  Eucampia was the most abundant – single cells and chains of all sizes.  A few Pseudo-nitzschia cells (seriata and delicatissma size) were observed in the net tow, but no P. australis or P. multiseries were detected.  Alexandrium counts decreased again this week (by half) and were mostly singlets.

Dinoflagellates:
P: Ceratium
P: Margalefidinium

R: LRB
R: Protoperidinium
R: Prorocentrum
R: Alexandrium
R: Akashiwo
R: Dinophysis
R: Boreadinium
R: Gymnodinium
R: Oxyphysis
R: Polykrikos
R: Gyrodinium
R: Noctiluca

Diatoms:
A: Eucampia
P: Skeletonema

R: Thalassiosira
R: Guinardia
R: Chaetoceros
R: Coscinodiscus
R: Rhizosolenia
R: Lauderia
R: Dactyliosolen
R: Ditylum
R: Pseudo-nitzschia
R: Pleurosigma
R: Odontella
R: Tropidoneis
R: Asteromphalus

Other:
R: Dictyocha
R: Unknown flagellate
R: Tiny cells (~2um)

* Environmental Information *
Time: 8:45 am
Collector: MC/GG/HA

Water Conditions (SCW)
Water Temperature: 15.0 C
Water Conditions: Calm
Water Color/Code: Dark green, 10GY 2/4 (#30)
Water Visibility: 5 ft
Tide: High – 8:16, 3.1 ft
Surf Report: NW swell, 2-3 ft

NDBC buoy 46042
– Significant wave height: 5.9 ft
– Swell height/direction: 4.9 ft, WNW
– Wind wave height/direction: 3.0 ft, NW

Weather Conditions (KudelaHawk)
Sky: Marine layer
Air Temperature: 52.7 F (11.5 C)
Wind: 2 mph, ENE
Solar radiation: 136 watts/m^2

Monterey Wharf II

Wednesday, July 12, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
This morning my site was foggy and misting. The sky was covered with clouds. There were many seabirds flying over my site. On the surface of the water there was debris, kelp, and seabird feathers. The water was smellier than usual. The water this week was a slightly darker green than last week with a visibility of 3.25m. Chlorophyll significantly increased from two weeks ago. Eucampia was abundant. Meanwhile, Lauderia, Ceratium, Prorocentrum, and Noctiluca were present in the water. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
P: Prorocentrum spp.
R: Dinophysis spp.
P: Ceratium spp.
R: Protoperidinium spp.
R: Alexandrium spp.
P: Noctiluca spp.
R: Scrippsiella spp.
R: Polykrikos spp.
R: Cochlodinium spp.
R: Oxyphysis
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Tropidoneis spp.
P: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Leptocylindrus spp.
R: Striatella spp.
A: Eucampia
R: Actinoptuchus

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0808 PT
COLLECTOR: Hannah McGrath

Water Temperature: NA
Water Conditions: Relatively calm
Water Color: 10Y 2/2
Visibility: 3.25 m
Tide: rising 1.01, high at 0827h
Chlorophyll: 23.694mg/m^3 by in vivo RFU

Sky: cloudy/foggy/misting, 100% cloud
Air Temperature: 12.22°C
Wind: NA, 2.68 m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of July 3, 2023

Santa Cruz Wharf

Wednesday, July 5, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Present

* Impressions *
Cool with the marine layer over the wharf this morning.  Net tow similar to last week – mostly dinoflagellates and Ceratium were the most abundant.  Margalefidinium increased in abundance this week with more 2- and 4-cell chains swimming around.  Alexandrium decreased this week (relative abundance and counts) and mostly 4-cell chains were observed.

Dinoflagellates:
A: Ceratium
C: LRB
P: Protoperidinium
P: Prorocentrum
P: Margalefidinium

R: Alexandrium
R: Akashiwo
R: Dinophysis
R: Boreadinium
R: Gymnodinium
R: Oxyphysis
R: Polykrikos

Diatoms:
P: Thalassiosira
P: Guinardia
P: Eucampia

R: Chaetoceros
R: Coscinodiscus
R: Leptocylindrus
R: Lauderia
R: Dactyliosolen
R: Ditylum
R: Fragilariopsis
R: Pleurosigma
R: Nitzschia
R: Tropidoneis

Other:
R: Dictyocha

* Environmental Information *
Time: 8:30 am
Collector: MC/GG/HA

Water Conditions (SCW)
Water Temperature: 15.2 C
Water Conditions: Calm
Water Color/Code: Dark green, 5G 2/6 (#31)
Water Visibility: 6 ft
Tide: Rising, Low – 7:10, -1.6 ft
Surf Report: NW swell, 3-5 ft

NDBC buoy 46042
– Significant wave height: 4.6 ft
– Swell height/direction: 4.6 ft, S
– Wind wave height/direction: 1.0 ft, W

Weather Conditions (KudelaHawk)
Sky: Marine layer
Air Temperature: 54.5 F (12.5 C)
Wind: None
Solar radiation: 138 watts/m^2

Monterey Wharf II

Wednesday, July 5, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
This morning there was a slight breeze on the wharf. The surface water was relatively calm and looked glassy in the distance. Several boats were docked near my site. The sky was filled with clouds. The water this week was a slightly darker green than last week with a visibility of 3.0m. Unfortunately, there was technical difficulty measuring chlorophyll this week ): Species that were common in the water included Ditylum, Thalassiosira, and Cylindrotheca. Species that were present in the water included Eucampia, Guinardia, Prorocentrum, and Ceratium. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
P: Prorocentrum spp.
R: Dinophysis spp.
P: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Noctiluca spp.
R: Scrippsiella spp.
R: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
R: Cochlodinium spp.
R: Oxyphysis
R: Amylax

Diatoms:
R: Chaetoceros spp.
C: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
C: Ditylum spp.
P: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
C: Cylindrotheca spp.
R: Licmophora spp.
R: Odontella spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Striatella spp.
P: Eucampia

Others:
R: Dictyocha spp.
R: Acantharians

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0740 PT
COLLECTOR: Hannah McGrath

Water Temperature: 17.3°C
Water Conditions: Calm
Water Color: 10GY 2/4
Visibility: 3.0 m
Tide: Rising, -0.40 m, high at 1400 h

Sky: Cloudy, 100% cloud
Air Temperature: 12.78°C
Wind: NA, 2.24 m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of June 26, 2023

Santa Cruz Wharf

Wednesday, June 28, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Present
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
Marine layer still hovering over the wharf this morning.  Net tow was similar to last week – mostly dinoflagellates and Ceratium were the most abundant.  Margalefidinium were around this week and Alexandrium cell counts increased 2 orders of magnitude.  Lots of 4 and 8 cell chains swimming around the sample.

Dinoflagellates:
A: Ceratium
C: LRB
P: Alexandrium
P: Prorocentrum
P: Gymnodinium

R: Dinophysis
R: Boreadinium
R: Protoperidinium
R: Polykrikos
R: Oxyphysis
R: Margalefidinium
R: Akashiwo

Diatoms:
R: Thalassiosira
R: Skeletonema
R: Chaetoceros
R: Guinardia
R: Coscinodiscus
R: Eucampia
R: Lauderia
R: Ditylum
R: Pleurosigma
R: Navicula

Other:
R: Dictyocha

* Environmental Information *
Time: 8:30 am
Collector: MC/GG/HA

Water Conditions (SCW)
Water Temperature: 15.0 C
Water Conditions: Calm
Water Color/Code: Green, 10GY 2/4 (#30)
Water Visibility: 5 ft
Tide: Falling, High – 7:31, 2.9 ft
Surf Report: NW swell, 3-4 ft

NDBC buoy 46042
– Significant wave height: 5.6 ft
– Swell height/direction: 3.9 ft, NW
– Wind wave height/direction: 3.9 ft, NW

Weather Conditions (KudelaHawk)
Sky: Marine layer
Air Temperature: 55.0 F (12.8 C)
Wind: 5 mph, SSE
Solar radiation: 147 watts/m^2

Monterey Wharf II

Wednesday, June 28, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare

* Impressions *
There was a slight breeze on the wharf this morning. The sky was filled with clouds and mist. The water was relatively calm. There were many fishermen at my site. The water this week is greener than last week with a visibility of 3.75m. Chlorophyll significantly increased from last week. Ceratium was abundant. Meanwhile, Ditylum and Prorocentrum were present in the water. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
A: Ceratium spp.
R: Protoperidinium spp.
R: Alexandrium spp.
R: Gyrodinium spp. (grey green)
R: Polykrikos spp.
R: Cochlodinium spp.
R: Pyrophacus spp.
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
P: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Bacillaria spp.
R: Licmophora spp.
R: Odontella spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Eucampia

Others:
R: Larvacean
R: Radiolarian

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0808 PT
COLLECTOR: Hannah McGrath

Water Temperature: 15.0°C
Water Conditions: Relatively calm
Water Color: 10Y 3/4
Visibility: 3.75m
Tide: falling, 0.91m, low at 1214 h
Chlorophyll: 9.480 mg/m^3 by in vivo RFU

Sky: cloudy/misty, 100% cloud
Air Temperature: 12.22°C
Wind: NA, 3.13 m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of June 19, 2023

Santa Cruz Wharf

Wednesday, June 21, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Rare
– Dinophysis: Present
– Margalefidinium: None

* Impressions *
Sunshine and clear skies at the wharf this morning.  Net tow was similar to last week, mostly dinoflagellates with a slight increase in phytoplankton biomass.  The phytoplankton assemblage shifted a bit and Ceratium was the most abundant.  No Pseudo-nitzschia were seen this week and the Alexandrium counts increased by an order of magnitude.

Dinoflagellates:
A: Ceratium
C: Protoperidinium
C: LRB
P: Dinophysis
P: Boreadinium

R: Gymnodinium
R: Prorocentrum
R: Scrippsiella
R: Alexandrium

Diatoms:
P: Thalassiosira
P: Skeletonema

R: Chaetoceros
R: Guinardia
R: Coscinodiscus
R: Thalassionema
R: Rhizosolenia
R: Eucampia
R: Asteromphalus
R: Lauderia
R: Cylindrotheca
R: Ditylum
R: Pleurosigma
R: Navicula
R: Odontella

Other:
R: Dictyocha

* Environmental Information *
Time: 8:30 am
Collector: MC/GCG/HA

Water Conditions (SCW)
Water Temperature: 14.6 C
Water Conditions: Calm
Water Color/Code: Dark blue, 10BG 2/6 (#14)
Water Visibility: 7 ft
Tide: Rising, Low – 7:52, -0.5 ft
Surf Report: NW swell, 3-4 ft

NDBC buoy 46042
– Significant wave height: 6.9 ft
– Swell height/direction: 10.0 ft, NW
– Wind wave height/direction: 5.2 ft, NW

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 54.5 F (12.5 C)
Wind: 3.8 mph, N
Solar radiation: 410 watts/m^2

Monterey Wharf II

Wednesday, June 21, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Present
– Margalefidinium: Rare

* Impressions *
This morning my site was windy. The majority of the sky was filled with clouds, however there were blue skies on the horizon. There were several boats docked near my site. In addition, there were many sea birds floating on the surface of the water. The water this week was bluer than last week with a visibility of 4.0m. Chlorophyll significantly decreased from last week. Chaetoceros, Coscinodiscus, Dinophysis, Prorocentrum and Ceratium were present in the water. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
P: Prorocentrum spp.
R: Dinophysis spp.
P: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Cochlodinium spp.
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax

Diatoms:
P: Chaetoceros spp.
P: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Leptocylindrus spp.
R: Eucampia

Others:
R: Radiolaria

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0724 PT
COLLECTOR: Hannah McGrath

Water Temperature: 16.11°C
Water Conditions: Rolling waves
Water Color: 5G 2/6
Visibility: 4.0 m
Tide: Falling, -0.15m, low at 0753 h
Chlorophyll: net: 4.640mg/m^3 by in vivo RFU

Sky: cloudy and breezy, 80% cloud
Air Temperature: 12.22°C
Wind: NA, 3.58 m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of June 12, 2023

Santa Cruz Wharf

Wednesday, June 14, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Present
– Margalefidinium: None

* Impressions *
Another overcast morning at the wharf.  There was a dramatic decrease in detritus/debris in the net tow this week and the phytoplankton assemblage shifted to mostly dinoflagellates.  Overall phytoplankton biomass increased and Ceratium and Protoperidinium were the most abundant.  Pseudo-nitzschia in the net tow were seriata size (2-cell chains) and the Alexandrium counts were similar to last week.

Dinoflagellates:
C: Protoperidinium
C: Ceratium
C: Prorocentrum
P: Dinophysis

R: LRB
R: Gymnodinium
R: Polykrikos
R: Boreadinium
R: Akashiwo

Diatoms:
P: Thalassiosira

R: Chaetoceros
R: Guinardia
R: Coscinodiscus
R: Detonula
R: Rhizosolenia
R: Eucampia
R: Asteromphalus
R: Pseudo-nitzschia
R: Cylindrotheca
R: Ditylum
R: Pleurosigma
R: Nitzschia

Other:
A: Flagellate

* Environmental Information *
Time: 8:30 am
Collector: MC/GCG/HA

Water Conditions (SCW)
Water Temperature: 14.5 C
Water Conditions: Calm
Water Color/Code: Blue/green, 5BG 2/6 (#15)
Water Visibility: 4 ft
Tide: Rising, High – 9:14, 3.4 ft
Surf Report: NW swell, 2-3 ft

NDBC buoy 46042
– Significant wave height: 4.6 ft
– Swell height/direction: 4.6 ft, WNW
– Wind wave height/direction: 0.7 ft, WNW

Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 55.4 F (13 C)
Wind: 5mph, SSE
Solar radiation: 129 watts/m^2

Monterey Wharf II

Wednesday, June 14, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Abundant
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None

* Impressions *
This morning the wharf was cloudy but the air was relatively warm. The sun was trying to peek through the clouds. There were several sailboats docked at my site. In addition, there were bird feathers on the surface of the water. Overall, the water was relatively calm. The water this week was a slightly lighter green than last week with a visibility of 5.0m. Chlorophyll decreased from last week. Pseudo-nitzschia was abundant in the water. Meanwhile, Chaetoceros, Dinophysis, and Pyrophacus were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, and Dinophysis.

Dinoflagellates:
R: Prorocentrum spp.
P: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
P: Pyrophacus spp.
R: Amylax

Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
A: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Eucampia

Others:
R: Larvacean

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0719 PT
COLLECTOR: Hannah McGrath

Water Temperature: 14.50°C
Water Conditions: Relatively calm
Water Color: 10Y 2/2
Visibility: 5.0 m
Tide: Rising, 1.19 m, high at 0924 h
Chlorophyll: net: 10.839mg/m^3 by in vivo RFU

Sky: cloudy, 80% cloud
Air Temperature: 13.89°C
Wind: NA, 0.89 m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of June 5, 2023

Santa Cruz Wharf

Wednesday, June 7, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: None

* Impressions *
Overcast at the wharf this am.  Once again, the net tow was mostly detritus/debris (significant increase from last week) and the phytoplankton biomass decreased (or were too hard to see among the junk).  The assemblage remains mostly diatoms, with Chaetoceros and Guinardia being the most abundant.  Pseudo-nitzschia were seriata size (none seen in the probed counts) and the Alexandrium counts dropped dramatically.

Dinoflagellates:
P: Protoperidinium

R: Dinophysis
R: LRB
R: Gymnodinium
R: Ceratium
R: Polykrikos

Diatoms:
C: Chaetoceros
C: Guinardia
C: Thalassiosira
P: Coscinodiscus
P: Fragilariopsis
P: Detonula

R: Skeletonema
R: Eucampia
R: Asteromphalus
R: Pseudo-nitzschia
R: Proboscia
R: Thalassionema
R: Ditylum
R: Pleurosigma
R: Paralia
R: Nitzschia
R: Licmophora
R: Tropidoneis

Other:
R: Oval flagellate

* Environmental Information *
Time: 8:30 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 13.0 C
Water Conditions: Calm
Water Color/Code: Green, 5G 2/6 (#31)
Water Visibility: 3 ft
Tide: Low – 8:19, -1.4 ft
Surf Report: WNW swell, 4-6 ft

NDBC buoy 46042
– Significant wave height: 4.6 ft
– Swell height/direction: 4.6 ft, S
– Wind wave height/direction: 1.0 ft, SW

Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 57.9 F (14.3 C)
Wind: No wind
Solar radiation: 131 watts/m^2

Monterey Wharf II

Wednesday, June 7, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Common
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None

* Impressions *
This morning my sampling site was loud from a truck (golden state portables). It was misting on the wharf and the sky was covered in clouds. On the surface of the water, a sea lion was playing with a floating whole small watermelon. There were several boats docked at my site. The water this week was slightly greener than last week with a visibility of 4.5m. Chlorophyll increased from last week. Both Chaetoceros and Pseudo-nitzschia were common in the water. Cylindrotheca and Guinardia were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, and Dinophysis.

Dinoflagellates:
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Noctiluca spp.
R: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
R: Amylax

Diatoms:
C: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
C: Pseudo-nitzschia spp.
R: Ditylum spp.
P: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
P: Cylindrotheca spp.
R: Bacillaria spp.
R: Licmophora spp.
R: Asteromphalus spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Eucampia

Others:
R: Dictyocha spp.

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0722 PT
COLLECTOR: Hannah McGrath

Water Temperature: 13.61°C
Water Conditions: Calm
Water Color: 5Y 2/2
Visibility: 4.5 m
Tide: falling, -0.30m, low at 0814 h
Chlorophyll: 13.883mg/m^3 by in vivo RFU

Sky: sunny/ clear skies, 100% cloud
Air Temperature: 13.89°C
Wind: NA, 0.89 m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of May 29, 2023

Santa Cruz Wharf

Wednesday, May 31, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Present
– Margalefidinium: None

* Impressions *
Another cool morning at the wharf.  Net tow was mostly detritus/debris this week and the phytoplankton biomass decreased.  The phytoplankton assemblage shifted back to mostly diatoms with Thalassiosira and Protoperidinium being the most abundant.  There were a few chains of Pseudo-nitzschia in the net tow (all seriata-size), but none were seen in the probed counts.  Alexandrium counts decreased an order of magnitude this week.

Dinoflagellates:
C: Protoperidinium
P: Dinophysis
P: LRB

R: Gymnodinium
R: Alexandrium
R: Ceratium
R: Prorocentrum
R: Noctiluca

Diatoms:
C: Thalassiosira
C: Chaetoceros
C: Guinardia
P: Skeletonema
P: Eucampia
P: Asteromphalus

R: Pseudo-nitzschia
R: Lauderia
R: Coscinodiscus
R: Ditylum
R: Pleurosigma
R: Paralia
R: Odontella
R: Fragilariopsis
R: Licmophora

* Environmental Information *
Time: 8:30 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 12.3 C
Water Conditions: Calm
Water Color/Code: Green, 5G 2/6 (#31)
Water Visibility: 2 ft
Tide: High – 8:53, 3.3 ft
Surf Report: NW swell, 3-4 ft

NDBC buoy 46042
– Significant wave height: 6.9 ft
– Swell height/direction: 6.2 ft, NW
– Wind wave height/direction: 3.0 ft, NW

Weather Conditions (KudelaHawk)
Sky: Foggy/marine layer
Air Temperature: 53.4 F (11.9 C)
Wind: 4.5 mph, SSW
Solar radiation: 96 watts/m^2

Monterey Wharf II

Wednesday, May 31, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Common
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None

* Impressions *
This morning the sky was filled with clouds. The mountains in the horizon were slightly visible. There was a slight breeze but the surface water was relatively calm. There were many seabirds flying on the surface of the water. The water this week was greener than last week with a visibility of 5.5m. Chlorophyll slightly decreased from last week. Both Chaetoceros and Pseudo-nitzschia were common in the water. Meanwhile, Guinardia was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Alexandrium spp.
R: Noctiluca spp.
R: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
R: Amylax

Diatoms:
C: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
C: Pseudo-nitzschia spp.
R: Ditylum spp.
P: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Asteromphalus spp.
R: Eucampia

Others:
R: Dictyocha spp.

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0750 PT
COLLECTOR: Hannah McGrath

Water Temperature: 13.56°C
Water Conditions: relatively calm
Water Color: 5G 2/2
Visibility: 5.5m
Tide: Rising, 1.01 m, high at 0858 h
Chlorophyll: 7.101mg/m^3 by in vivo RFU

Sky: cloudy, 100% cloud
Air Temperature: 12.22°C
Wind: NA, 3.58 m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%

Week of May 22, 2023

Santa Cruz Wharf

Wednesday, May 24, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Common
– Dinophysis: Present
– Margalefidinium: None

* Impressions *
Another cool morning with the marine layer decidedly present at the wharf.  Zooplankton are rarely mentioned in this report, but Tiarina were the most abundant plankton in the net tow this week.  The number of zooplankton coupled with the dramatic decrease in phytoplankton biomass made the assemblage a more difficult one to assess.  The phytoplankton assemblage shifted to mostly dinoflagellates this week led by Protoperidinium (several species).  There were no Pseudo-nitzschia cells observed in the probed counts this week and the Alexandrium cell concentration increased 2 orders of magnitude.  Single cells of Alex and chains of up to 8 cells were zooming around the petri dish.

Dinoflagellates:
A: Protoperidinium
C: Alexandrium
C: Boreadinium
P: Dinophysis
P: Gymnodinium

R: Ceratium
R: Polykrikos
R: Amylax
R: Gyrodinium

Diatoms:
P: Skeletonema
P: Thalassiosira

R: Eucampia
R: Navicula
R: Pseudo-nitzschia
R: Chaetoceros
R: Guinardia
R: Lauderia
R: Coscinodiscus
R: Ditylum
R: Asteromphalus
R: Pleurosigma
R: Paralia
R: Cylindrotheca

Other:
A: Zooplankton (mostly Tiarina)

R: Dictyocha

* Environmental Information *
Time: 8:30 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 13.0 C
Water Conditions: Calm
Water Color/Code: Green, 10G 2/6 (#12)
Water Visibility: 5 ft
Tide: Falling, Low – 9:10, -0.3 ft
Surf Report: NW swell, 3-4 ft

NDBC buoy 46042
– Significant wave height: 7.2 ft
– Swell height/direction: 6.9 ft, WNW
– Wind wave height/direction: 1.3 ft, WNW

Weather Conditions (KudelaHawk)
Sky: Foggy/marine layer
Air Temperature: 52.7 F (11.5 C)
Wind: 3 mph, S
Solar radiation: 95 watts/m^2

Monterey Wharf II

Wednesday, May 24, 2023

* Quick HAB Observations *
– Pseudo-nitzschia: Common
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None

* Impressions *
This morning it was misting and the sky was filled with clouds. The mountains in the horizon were not visible. There was a slight breeze but the surface water was relatively calm. Several boats were docked at my site. The water this week was bluer than last week with a visibility of 4.75m. Chlorophyll significantly decreased from last week. Both Pseudo-nitzschia and Protoperidinium were common. Chaetoceros, Gyrodinium (pink tipped), and Gonyaulax were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, and Dinophysis.

Dinoflagellates:
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
P: Gonyaulax spinifera
C: Protoperidinium spp.
R: Alexandrium spp.
R: Scrippsiella spp.
P: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
R: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax

Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
C: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Bacillaria spp.
R: Licmophora spp.
R: Odontella spp.
R: Asteromphalus spp.
R: Leptocylindrus spp.
R: Proboscia spp.
R: Detonula spp.
R: Eucampia

Others:
R: Dictyocha spp.

Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0728 PT
COLLECTOR: Hannah McGrath

Water Temperature: 12.50°C
Water Conditions: Calm
Water Color: 5G 2/6
Visibility: 4.75m
Tide: Falling, 0.21m, low at 0910 h
Chlorophyll: 7.569mg/m^3 by in vivo RFU

Sky: cloudy/misting, 100% cloud
Air Temperature: 12.22°C
Wind: NA, 3.80m/S

Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%