Week of January 1, 2024

Santa Cruz Wharf

Wednesday, January 3, 2024

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

* Impressions *
There was rain overnight and it was cold and gloomy at the wharf this morning.  The swell is still pretty large, but not nearly as large as last week (thankfully we took last week off).  As expected, the net tow was mostly detritus/debris with very little phytoplankton biomass (2cells=Present).  Lingulodinium were the most abundant this week (a first for the SCW, if memory serves…). 

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

Diatoms:
P: Chaetoceros
P: Skeletonema
P: Thalassiosira
P: Ditylum
P: Paralia

R: Leptocylindrus
R: Coscinodiscus
R: Actinoptychus

* Environmental Information *
Time: 8:10 am
Collector: P. Daniel

Water Conditions (SCW)
Water Temperature: 13.9 C
Water Conditions: Large swell
Water Color/Code: Green/brown, 5Y 3/4 (#21)
Water Visibility: 2 ft
Tide: Falling, Low – 10:36, 2.4 ft
Surf Report: WNW swell, 10-15 ft

NDBC buoy 46042 (drifting since 25Nov23)
– Significant wave height: NA
– Swell height/direction: NA
– Wind wave height/direction: NA

Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 46.0 F (7.8 C)
Wind: 6 mph, W
Solar radiation: 7 watts/m^2

Monterey Wharf II

Wednesday, January 3, 2024

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

* Impressions *
The wharf this morning was wet, wet, wet. We had about an inch of rain overnight, and then I hit another storm on the drive down which almost had me detouring to the nearest cafe to wait things out. It was chilly and the sun did start to peep out as I was sampling. The sea lions were having a party, and the waters were pretty calm. No surprise that the sample was pretty much all detritus and chlorophyll was low – no HAB species to speak of.

Dinoflagellates:
R: Ceratium spp.

Diatoms:
R: Chaetoceros spp.
R: Coscinodiscus spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Skeletonema spp.
R: Lauderia spp.
R: Navicula spp.
R: Bacteriastrum spp.
R: Paralaria spp.

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0837 PT
COLLECTOR: Holly Bowers

Water Temperature: 14°C
Water Conditions: calm
Water Color: 10Y 2/2
Visibility: 3 m
Chlorophyll: 6.424mg/m^3 by in vivo RFU

Sky: sunny/ clear skies, 50% cloud
Air Temperature: 11°C
Wind: S, 2.06m/S

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

Week of December 18, 2023

Santa Cruz Wharf

Wednesday, December 20, 2023

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

* Impressions *
Stormy with decent swell at the wharf this morning.  The net tow was once again mostly detritus/debris, but the phytoplankton biomass was similar to last week.  The phytoplankton assemblage continues to be a mix of diatoms and dinoflagellates with Chaetoceros and Akashiwo being the most abundant.  Pseudo-nitzschia were seriata size, but no P. australis, P. multiseries, or Alexandirum were detected in the probed cell counts. 

Dinoflagellates:
C: Akashiwo
C: Lingulodinium
P: Ceratium

R: Protoperidinium
R: Prorocentrum
R: Alexandrium
R: Dinophysis
R: Polykrikos
R: Oxyphysis
R: Oxytoxum

Diatoms:
C: Chaetoceros

R: Guinardia
R: Thalassiosira
R: Pleurosigma
R: Lauderia
R: Pseudo-nitzschia
R: Eucampia
R: Thalassionema
R: Proboscia
R: Coscinodiscus
R: Ditylum
R: Cerataulina
R: Paralia

* Environmental Information *
Time: 8:15 am
Collector: P. Daniel

Water Conditions (SCW)
Water Temperature: 14.1 C
Water Conditions: Large swell
Water Color/Code: Green, 5G 2/6 (#31)
Water Visibility: 3 ft
Tide: Falling, Low – 11:40, 1.7 ft
Surf Report: S swell, 1-2 ft

NDBC buoy 46042 (drifting since 25Nov23)
– Significant wave height: NA
– Swell height/direction: NA
– Wind wave height/direction: NA

Weather Conditions (KudelaHawk)
Sky: Rainy
Air Temperature: 53.2 F (11.8 C)
Wind: 13 mph, NNE
Solar radiation: 4 watts/m^2

Monterey Wharf II

No sample this week

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

Week of December 11, 2023

Santa Cruz Wharf

Wednesday, December 13, 2023

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

* Impressions *
Sunny and clear at the wharf this am.  Phytoplankton biomass in the net tow was similar to last week, but there was significantly less detritus/debris.  The phytoplankton assemblage remained a mix of diatoms and dinoflagellates and Akashiwo was the most abundant.  Alexandrium were detected in the probed cell counts.  Pseudo-nitzschia were seriata size and only P. multiseries were detected this week.

Dinoflagellates:
C: Akashiwo
C: Lingulodinium
P: Prorocentrum
P: Ceratium

R: Protoperidinium
R: Margalefidinium
R: Alexandrium
R: Dinophysis
R: Gymdnodinium
R: Polykrikos
R: Heterocapsa

Diatoms:
P: Chaetoceros

R: Guinardia
R: Thalassiosira
R: Pleurosigma
R: Detonula
R: Pseudo-nitzschia
R: Leptocylindrus
R: Thalassionema
R: Proboscia
R: Lithodesmium
R: Ditylum
R: Skeletonema
R: Entomoneis

Other:
R: Dictyocha
R: Heterosigma

* Environmental Information *
Time: 9:00 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 13.1 C
Water Conditions: Calm
Water Color/Code: Green, 10GY 3/4 (#29)
Water Visibility: 7 ft
Tide: Rising, High – 9:30, 6.5 ft
Surf Report: W swell, 1-2 ft

NDBC buoy 46042 (drifting since 25Nov23)
– Significant wave height: NA
– Swell height/direction: NA
– Wind wave height/direction: NA

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 48 F (8.9 C)
Wind: 3 mph, NW
Solar radiation: 223 watts/m^2

Monterey Wharf II

Wednesday, December 13, 2023

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

* Impressions *
The wharf this morning was sunny but chilly with a slight breeze. The sky was clear. On the surface of the water there was slight detritus (mostly from algae). The surface of the water also had medium sized rolling waves. Directly in front of my sampling site was a platform boat unloading equipment. The water this week was greener than last week with a visibility of 4.5m. Chlorophyll increased from last week. Dinoflagellates dominated the water column. Akashiwo was abundant in the water. Lingulodinium was common. Prorocentrum and Ceratium were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
A: Akashiwo sanguinea
P: Prorocentrum spp.
R: Dinophysis spp.
P: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Polykrikos spp.
R: Cochlodinium spp.
C: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Coscinodiscus spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Odontella spp.
R: Leptocylindrus spp.

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0721 PT
COLLECTOR: Hannah McGrath

Water Temperature: 12.5°C
Water Conditions: rolling waves
Water Color: 10Y 2/2
Visibility: 4.5 m
Tide: Rising, 1.58 m, high at 0929 h
Chlorophyll: 10.907mg/m^3 by in vivo RFU

Sky: sunny/ clear skies, 0% cloud
Air Temperature: 10.0°C
Wind: offline, 3.13m/S

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

Week of December 4, 2023

Santa Cruz Wharf

Wednesday, December 6, 2023

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

* Impressions *
Overcast (with rain coming later) and a large swell this morning.  Net tow was mostly detritus/debris and phytoplankton biomass decreased dramatically from last week.  The phytoplankton assemblage was an even mix of dinoflagellates and diatoms with Akashiwo and Chaetoceros being the most abundant.  No Alexandrium were counted this week.  Pseudo-nitzschia cells were both seriata and delicatissima sized and P. australis were detected.

Dinoflagellates:
C: Akashiwo
C: Lingulodinium

R: Prorocentrum
R: Ceratium
R: Protoperidinium
R: Margalefidinium
R: Alexandrium

Diatoms:
C: Chaetoceros
P: Guinardia

R: Thalassiosira
R: Coscinodiscus
R: Pleurosigma
R: Lauderia
R: Pseudo-nitzschia
R: Paralia
R: Thalassionema
R: Proboscia
R: Ditylum
R: Skeletonema

* Environmental Information *
Time: 9:00 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 13.5 C
Water Conditions: Large swell
Water Color/Code: Dark green, 10GY 3/4 (#29)
Water Visibility: 2 ft
Tide: Falling, Low – 12:26, 2.1 ft
Surf Report: WNW swell, 8-12 ft

NDBC buoy 46042 (drifting since 25Nov23)
– Significant wave height: NA
– Swell height/direction: NA
– Wind wave height/direction: NA

Weather Conditions (KudelaHawk)
Sky: Overcast (rain coming…)
Air Temperature: 49.3 F (9.6 C)
Wind: 4 mph, W
Solar radiation: 33 watts/m^2

Monterey Wharf II

Wednesday, December 6, 2023

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

* Impressions *
The wharf this morning was chilly and breezy. No boats were docked in front of my site. The surface of the water was covered in foam with strong currents. The water this week was greener than last week with a visibility of 2.0m. Chlorophyll increased from last week. Dinoflagellates dominated the water column. Lingulodinium, and Ceratium were common in the water. Meanwhile, Prorocentrum and Akashiwo were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium and Akashiwo sanguinea.

Dinoflagellates:
P: Akashiwo sanguinea
P: Prorocentrum spp.
R: Dinophysis spp.
C: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Polykrikos spp.
R: Cochlodinium spp.
C: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax
R: Protoceratium reticulatum

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Lauderia spp.
R: Navicula spp.
R: Licmophora spp.
R: Odontella spp.
R: Leptocylindrus spp.

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0649 PT
COLLECTOR: Hannah McGrath

Water Temperature: 15.0°C
Water Conditions: foam at the surface and strong current
Water Color: 10GY 3/4
Visibility: 2.0 m
Tide: Falling, 1.40 m, low at 1227 h
Chlorophyll: 7.530mg/m^3 by in vivo RFU

Sky: cloudy/drizzling, 100% cloud
Air Temperature: 11.11°C
Wind: offline, 1.34m/S

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

Week of November 27, 2023

Santa Cruz Wharf

Wednesday, November 29, 2023

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

* Impressions *
Rain overnight, but skies were clearing over the wharf this morning.  Net tow remains mostly dinoflagellates.  Phytoplankton biomass increased this week and Akashiwo was the most abundant.  Saw a 4-cell chain of seriata-size Pseudo-nitzschia, but no P. australis or P. multiseries.  Alexandrium counts decreased by half from last week.

Dinoflagellates:
A: Akashiwo

R: Prorocentrum
R: Lingulodinium
R: Ceratium
R: Protoperidinium
R: Gonyaulax
R: Margalefidinium
R: Alexandrium
R: LRB

Diatoms:
R: Thalassiosira
R: Chaetoceros
R: Coscinodiscus
R: Pleurosigma
R: Fragilariopsis
R: Pseudo-nitzschia

* Environmental Information *
Time: 9:00 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 13.8 C
Water Conditions: Small swell
Water Color/Code: Dark green, 10G 2/6 (#12)
Water Visibility: 5 ft
|Tide: Rising, High – 10:31, 6.0 ft
Surf Report: W swell, 3-4 ft

NDBC buoy 46042 (drifting since 25Nov23)
– Significant wave height: NA
– Swell height/direction: NA
– Wind wave height/direction: NA

Weather Conditions (KudelaHawk)
Sky: Partly cloudy
Air Temperature: 54.0 F (12.2 C)
Wind: 5 mph, WNW Solar radiation: 134 watts/m^2

Monterey Wharf II

Wednesday, November 29, 2023

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

* Impressions *
The wharf this morning was chilly and cloudy. The moon was full and out. The surface of the water was covered in streaks of what looked like oil and dirt. There were many jellyfish (I believe moon jellies) in the water. I was worried it would clog my phytoplankton net. The water this week was bluer than last week with a visibility of 8.5m! Chlorophyll increased from last week. Dinoflagellates dominated the water column. Lingulodinium was abundant in the water. Ceratium was common. Akashiwo was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
P: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
C: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Cochlodinium spp.
A: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Rhizosolenia spp.
R: Lauderia spp.
R: Navicula spp.
R: Odontella spp.
R: Asteromphalus spp.

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0656 PT
COLLECTOR: Hannah McGrath

Water Temperature: NA
Water Conditions: wavy, streaks of oil/dirt on the surface, many jellyfish
Water Color: 5BG 2/6
Visibility: 8.5 m
Tide: Rising, 1.19 m, high at 1032 h
Chlorophyll: 6.486mg/m^3 by in vivo RFU

Sky: cloudy, 90% cloud
Air Temperature: 11.11°C
Wind: offline, 5.36m/S

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

Week of November 20, 2023

Santa Cruz Wharf

Wednesday, November 22, 2023

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

* Impressions *
Sunny and cold at the wharf this morning.  The net tow was exclusively dinoflagellates this week (despite an effort to find a diatom cell), an occurrence that has not happened since Nov 2017.  Phytoplankton biomass was similar to last week, but the phytoplankton assemblage shifted to mostly Akashiwo.  Alexandrium counts were similar to last week.

Dinoflagellates:
A: Akashiwo
P: Prorocentrum
P: Ceratium
P: Lingulodinium
P: Alexandrium

R: Protoperidinium
R: Margalefidinium
R: Polykrikos
R: LRB

Diatoms:
None

* Environmental Information *
Time: 7:45 am
Collector: A. Trapp

Water Conditions (SCW)
Water Temperature: 13.7 C
Water Conditions: Calm
Water Color/Code: Green/blue, 5BG 2/6 (#15)
Water Visibility: 7 ft
Tide: Falling, High – 6:29, 5.2 ft
Surf Report: WNW swell, 3-4 ft

NDBC buoy 46042
– Significant wave height: 3.3 ft
– Swell height/direction: 3.3 ft, W
– Wind wave height/direction: 1.0 ft, ESE

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 48.4 F (9.1 C)
Wind: 8 mph, W Solar radiation: 65 watts/m^2

Monterey Wharf II

Wednesday, November 22, 2023

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

* Impressions *
The wharf this morning was chilly and windy. The sky was mostly blue with a few wispy clouds. The surface of the water was wavy. In the distance, you could see the mountains. The water this week was a darker green than last week with a visibility of 6.5m. Chlorophyll decreased from last week. Dinoflagellates dominated the water column. Akashiwo, Prorocentrum, and Lingulodinium were common. Ceratium was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis, Cochlodinium and Akashiwo sanguinea.

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

Diatoms:
R: Chaetoceros spp.
R: Coscinodiscus spp.
R: Ditylum spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Odontella spp.
R: Striatella spp.

* Environmental Information *
TIME: 0651 PT
COLLECTOR: Hannah McGrath

Water Temperature: 14.9°C
Water Conditions: rough waves
Water Color: 10Y 2/2
Visibility: 6.5 m
Tide: Falling, 1.58 m, low at 1138 h
Chlorophyll: 2.167 mg/m^3 by in vivo RFU

Sky: sunny/ clear skies, 10% cloud
Air Temperature: 12.78°C
Wind: offline, 3.13m/S

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

Week of November 13, 2023

Santa Cruz Wharf

Wednesday, November 15, 2023

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

* Impressions *
Overcast this morning, with a break in the rain (there was rain overnight and more predicted this afternoon).  As expected, the phytoplankton biomass decreased and the detritus/debris increased.  Net tow remains mostly dinoflagellates and Prorocentrum is still the most abundant.  No Pseudo-nitzschia were observed this week and Alexandrium counts decreased an order of magnitude from last week.

Dinoflagellates:
C: Prorocentrum
C: Heterocapsa?
C: Akashiwo

R: Lingulodinium
R: Ceratium
R: Protoperidinium
R: Dinophysis
R: Gymnodinium
R: Oxytoxum
R: Alexandrium

Diatoms:
P: Thalassiosira

R: Chaetoceros
R: Proboscia
R: Coscinodiscus
R: Asteromphalus
R: Dactyliosolen
R: Licmophora
R: Ditylum

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

Water Conditions (SCW)
Water Temperature: 14.2 C
Water Conditions: Large swell
Water Color/Code: Green, 10GY 3/4 (#29)
Water Visibility: 3 ft
Tide: Rising, High – 10:26, 5.9 ft
Surf Report: WNW swell, 4-6 ft

NDBC buoy 46042
– Significant wave height: 8.2 ft
– Swell height/direction: 6.9 ft, W
– Wind wave height/direction: 4.6 ft, S

Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 54.5 F (12.5 C)
Wind: 5.3 mph, W
Solar radiation: 37 watts/m^2

Monterey Wharf II

Wednesday, November 15, 2023

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

* Impressions *
This morning it was cloudy on the wharf with very small pockets of blue sky. There was a slight breeze but it was not a chilly morning. There were no boats docked at my site. The surface of the water was wavy. The water this week was the same color as two weeks ago with a visibility of 7.5m. Chlorophyll decreased slightly from two weeks ago. Diatoms dominated the water column. Chaetoceros was abundant in the water. Meanwhile, Pseudo-nitzschia was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Pyrocystis lunula
R: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax

Diatoms:
A: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
P: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Skeletonema spp.
R: Lauderia spp.
R: Cylindrotheca spp.
R: Asterionellopsis spp.
R: Proboscia spp.
R: Detonula spp.
R: Striatella spp.
R: Eucampia
R: Lioloma

Others:
R: Dictyocha spp.
R: Acantharians

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

* Environmental Information *
TIME: 0658 PT
COLLECTOR: Hannah McGrath

Water Temperature: 13.0°C
Water Conditions: Wavy
Water Color: 10G 2/6
Visibility: 7.5 m
Tide: Rising, 1.31 m, high at 1025h
Chlorophyll: net: 2.117 mg/m^3 by in vivo RFU

Sky: cloudy, 95% cloud
Air Temperature: 13.89 °C
Wind: offline, 0.45 m/S

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

Week of November 6, 2023

Santa Cruz Wharf

Wednesday, November 8, 2023

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

* Impressions *
Another sunny and cool morning at the wharf.  Swell was pretty decent today.  The net tow was similar to last week and phytoplankton biomass was about the same. Phytoplankton assemblage was mostly dinoflagellates and mostly Prorocentrum.  No Pseudo-nitzschia this week and the Alexandrium cell concentration was similar to last week.

Dinoflagellates:
C: Prorocentrum
C: Alexandrium (not A. catenella)
P: Ceratium

R: Protoperidinium
R: Dinophysis
R: Oxytoxum

Diatoms:
R: Skeletonema
R: Pleurosigma
R: Chaetoceros
R: Thalassionema
R: Thalassiothrix
R: Unknown pennate

Other:
R: Dictyocha

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

Water Conditions (SCW)
Water Temperature: 13.8 C
Water Conditions: Swell
Water Color/Code: Green, 5G 2/6 (#31)
Water Visibility: 4 ft
Tide: Falling, High – 7:27, 4.6 ft
Surf Report: SSW swell, 2-3 ft

NDBC buoy 46042
– Significant wave height: 9.5 ft
– Swell height/direction: 9.2 ft, WNW
– Wind wave height/direction: 1.9 ft, WNW

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 53.2 F (11.8 C)
Wind: 4 mph, W
Solar radiation: 272 watts/m^2

Monterey Wharf II

No sample this week

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

Week of October 30, 2023

Santa Cruz Wharf

Wednesday, November 1, 2023

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

* Impressions *
Another sunny and cool morning at the wharf.  The net tow was similar to last week, mostly dinoflagellates and mostly Prorocentrum, but overall phytoplankton biomass decreased.  Pseudo-nitzschia were seriata-size and P. australis were seen in the probed counts.  Alexandrium cell concentration decreased by half this week.

Dinoflagellates:
A: Prorocentrum

R: Akashiwo
R: Lingulodinium
R: Ceratium
R: Protoperidinium
R: Dinophysis
R: Gymnodinium
R: Polykrikos
R: Alexandrium

Diatoms:
R: Thalassiosira
R: Pleurosigma
R: Chaetoceros
R: Pseudo-nitzschia
R: Lauderia
R: Proboscia
R: Eucampia
R: Guinardia
R: Thalassionema
R: Coscinodiscus
R: Asteromphalus
R: Fragilariopsis
R: Leptocylindrus
R: Lithodesmium

Other:
R: Dictyocha

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

Water Conditions (SCW)
Water Temperature: 13.6 C
Water Conditions: Calm
Water Color/Code: Dark green, 10GY 3/4 (#29)
Water Visibility: 5 ft
Tide: Rising, Low – 6:36, 2.9 ft
Surf Report: WNW swell, 3-4 ft

NDBC buoy 46042
– Significant wave height: 3.3 ft
– Swell height/direction: 3.0 ft, SW
– Wind wave height/direction: 1.0 ft, NE

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 51.4 F (10.8 C)
Wind: 2 mph, NW
Solar radiation: 162 watts/m^2

Monterey Wharf II

Wednesday, November 1, 2023

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

* Impressions *
This morning the wharf was chilly with a slight breeze. The sky was clear and sunny. There was lots of wave action on the surface. Overall, there was not a lot of human activity this morning. The water this week was bluer than last week with a visibility of 6.5 m. Chlorophyll decreased from last week. Dinoflagellates dominated the water column. Prorocentrum was abundant. Akashiwo was common. Chaetoceros and Pseudo-nitzschia were present in the water. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis and Akashiwo sanguinea.

Dinoflagellates:
C: Akashiwo sanguinea
A: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Gyrodinium spp. (pink tipped)
R: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax

Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
P: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Asteromphalus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Striatella spp.
R: Eucampia
R: Lioloma

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0700 PT
COLLECTOR: Hannah McGrath

Water Temperature: 12.5°C
Water Conditions: rough waves
Water Color: 10G 2/6
Visibility: 6.5 m
Tide: Falling, 1.01 m, high at 1241 h
Chlorophyll: 2.426mg/m^3 by in vivo RFU

Sky: sunny/ clear skies, 0% cloud
Air Temperature: 12.78°C
Wind: offline, 2.68m/S

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

Week of October 23, 2023

Santa Cruz Wharf

Wednesday, October 25, 2023

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

* Impressions *
Another sunny, cool morning at the wharf.  The water was calm and browner than usual.  Phytoplankton biomass increased this week.  But the phytoplankton assemblage was similar to last week, mostly dinoflagellates, mostly Prorocentrum.  No Pseudo-nitzschia were observed and Alexandrium counts increased another order of magnitude this week.

Dinoflagellates:
A: Prorocentrum
P: Ceratium
P: Dinophysis
P: Noctiluca

R: Akashiwo
R: Oxyphysis
R: Oxytoxum

Diatoms:
R: Chaetoceros
R: Lauderia
R: Thalassionema
R: Rhizosolenia

Other:
R: Dictyocha

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

Water Conditions (SCW)
Water Temperature: 15.5 C
Water Conditions: Calm
Water Color/Code: Brown, 5GY 3/4 (#28)
Water Visibility: 5 ft
Tide: High – 8:45, 5.0 ft

NDBC buoy 46042
– Significant wave height: 6.2 ft
– Swell height/direction: 5.6 ft, NW
– Wind wave height/direction: 2.6 ft, NW

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 53.2 F (11.8 C)
Wind: 3 mph, WSW
Solar radiation: 184 watts/m^2

Monterey Wharf II

Wednesday, October 25, 2023

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

* Impressions *
The wharf this morning was chilly and breezy. There were a few clouds in the sky but mostly clear. The surface water appeared rough. In front of my sampling site there was a boat unloading fishing gear and nets. The water this week was a slightly darker green than last week with a visibility of 4.0m. Chlorophyll decreased from last week. Dinoflagellates dominated the water column. Prorocentrum was abundant in the water. Dinophysis, Ceratium, and Lingulodinium were present in the water. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
A: Prorocentrum spp.
P: Dinophysis spp.
P: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
P: Lingulodinium polyedrum
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Striatella spp.

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0656 PT
COLLECTOR: Hannah McGrath

Water Temperature: 15.5°C
Water Conditions: rough waves
Water Color: 5Y 2/2
Visibility: 4.0 m
Tide: Rising, 1.31m, high at 0844 h
Chlorophyll: 6.207mg/m^3 by in vivo RFU

Sky: clear skies, 20% cloud
Air Temperature: 13.89°C
Wind: offline, 4.47m/S

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