Week of January 20, 2025

Santa Cruz Wharf

Wednesday, January 22, 2025

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

* Impressions *
Cold and sunny at the wharf this morning with a bait ball in the area.  Net tow remains mostly detritus/debris and phytoplankton biomass decreased this week (P=2cells).  Diatoms remain the dominant group, but phytoplankton diversity decreased.  The assemblage shifted slightly and Thalassiosira and Skeletonema were the most abundant.  Pseudo-nitzschia were seriata-size, but none were detected in the probed counts.

Dinoflagellates:
P: Ceratium
P: Dinophysis
P: Protoperidinium
P: LRB

R: Prorocentrum

Diatoms:
C: Thalassiosira
C: Skeletonema
C: Chaetoceros
C: Pseudo-nitzschia
P: Lauderia
P: Paralia

R: Coscinodiscus
R: Licmophora

Other:
R: Dictyocha

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

Water Conditions (SCW)
Water Temperature: 9.0 C
Water Conditions: Calm
Water Color/Code: Green, 10GY 2/4 (#30)
Water Visibility: 4 ft
Tide: Falling, Low – 12:02, 1.1 ft
Surf Report: WNW swell, 3-4

NDBC buoy 46284
– Significant wave height: 1.0 m
– Swell height/direction: 0.9 m, WSW
– Wind wave height/direction: 0.2 m, WSW

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 38.3 F (3.5 C)
Wind: 8 mph, W
Solar radiation: 50 watts/m^2

Monterey Wharf II

Wednesday, January 22, 2025

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

* Impressions *
The wharf this morning was sunny but chilly with a slight breeze. The surface of the water was wavy. The water this week was bluer than last week with a visibility >5.0m. Diatoms dominated the water column. Chaetoceros was abundant in the water. Thalassiosira was common. Detonula was 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: Protoperidinium spp.
R: Alexandrium spp.      
R: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax

Diatoms:
A: Chaetoceros spp.
C: 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: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.            
R: Navicula spp.
R: Cylindrotheca spp.          
R: Odontella spp.
R: Asterionellopsis spp.
P: Detonula spp.
R: Eucampia  
R: Entomoneis  

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0804 PT
COLLECTOR: Hannah McGrath

Water Temperature: 11.5°C
Water Conditions: rough waves
Water Color: 10G 2/6
Visibility: 5.0 m
Tide: Falling, 1.01 m, low at 1213 h

Sky: sunny/ clear skies, 0% cloud
Air Temperature: 7.78°C
Wind: offline, 4.02m/S

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

Week of January 13, 2025

Santa Cruz Wharf

Wednesday, January 15, 2025

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

* Impressions *
Another sunny and clear morning at the wharf.  Net tow was similar to last week, mostly detritus/debris and phytoplankton were mostly diatoms.  Phytoplankton biomass was about the same, but the assemblage shifted to mostly Thalassiosira.  Pseudo-nitzschia were seriata-size and none were detected in the probed counts.

Dinoflagellates:
R: Ceratium
R: Dinophysis
R: Akashiwo
R: Gymnodinium
R: Noctiluca

Diatoms:
C: Thalassiosira
C: Detonula
C: Cerataulina
P: Lauderia
P: Guinardia
P: Chaetoceros

R: Paralia
R: Skeletonema
R: Pleurosigma
R: Dactyliosolen
R: Eucampia
R: Pseudo-nitzschia
R: Rhizosolenia
R: Proboscia
R: Asteromphalus
R: Coscinodiscus
R: Ditylum
R: Licmophora

Other:
R: Dictyocha

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

Water Conditions (SCW)
Water Temperature: 12.3 C
Water Conditions: Calm
Water Color/Code: Green, 10GY 3/4 (#29)
Water Visibility: 6 ft
Tide: Rising, High – 10:27, 5.7 ft
Surf Report: WNW swell, 6-8

NDBC buoy 46284
– Significant wave height: 0.9 m
– Swell height/direction: 0.9 m, WSW
– Wind wave height/direction: 0.3 m, WSW

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 42.8 F (6 C)
Wind: 8 mph, WNW
Solar radiation: 151 watts/m^2

Monterey Wharf II

Wednesday, January 15, 2025

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

* Impressions *
The wharf this morning had clear blue skies. It was sunny but chilly. The surface of the water was relatively calm and covered with jellyfish and kelp. There were no boats docked nearby. The water this week was the same color as last week with a visibility of 5.0m. Diatoms dominated the water column. Thalassiosira, Chaetoceros, and Detonula were common. Ceratium was 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.        
P: Ceratium spp.          
R: Protoperidinium spp.
R: Alexandrium spp.  
R: Amylax

Diatoms:
C: Chaetoceros spp.
C: Thalassiosira spp.      
R: Coscinodiscus spp.    
R: Pseudo-nitzschia spp.
R: Guinardia spp.          
R: Pleurosigma spp.        
R: Rhizosolenia spp.
R: Skeletonema spp.
R: Lauderia spp.            
R: Cylindrotheca spp.          
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Cerataulina spp.
C: Detonula spp.
R: Paralaria spp.
R: Entomoneis

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0810 PT
COLLECTOR: Hannah McGrath

Water Temperature: 11.3°C
Water Conditions: calm
Water Color: 5G 2/6
Visibility: 5.0 m
Tide: Rising, 1.40 m, high at 1033 h

Sky: sunny/ clear skies, 0% cloud
Air Temperature: 10.0°C
Wind: offline, 2.24 m/S

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

Week of January 6, 2025

Santa Cruz Wharf

Wednesday, January 8, 2025

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

* Impressions *
Sunny and cool this morning at the wharf with a bait ball and feeding sea lions near the sampling area.  Net tow was mostly detritus/debris and diatoms were the dominant group.  Phytoplankton biomass was low, but the chain forming diatoms were pretty happy looking.  Chaetoceros was the most abundant.  Pseudo-nitzschia were seriata-size, but none were detected in the probed counts.

Dinoflagellates:
R: Ceratium
R: Dinophysis
R: Boreadinium

Diatoms:
C: Thalassiosira
C: Detonula
C: Chaetoceros
P: Skeletonema
P: Dactyliosolen

R: Pleurosigma
R: Guinardia
R: Pseudo-nitzschia
R: Fragilariopsis
R: Asteromphalus
R: Proboscia
R: Rhizosolenia
R: Paralia
R: Actinoptychus
R: Tropidoneis

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

Water Conditions (SCW)
Water Temperature: 11.9 C
Water Conditions: Small swell
Water Color/Code: Light green/brown, 10GY 3/4 (#29)
Water Visibility: 5 ft
Tide: Falling, Low – 12:25, 0.3 ft

NDBC buoy 46284
– Significant wave height: 1.3
– Swell height/direction: 1.2, WSW
– Wind wave height/direction: 0.5, WSW

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 51.6 F (10.9 C)
Wind: 3 mph, NW
Solar radiation: 223 watts/m^2

Monterey Wharf II

Wednesday, January 8, 2025

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

* Impressions *
The wharf this morning was breezy and chilly but sunny. No boats were docked at the wharf this morning. There were small rolling waves on the surface of the water. The sky was blue with a few clouds. The water this week was the same color as two weeks ago with a visibility of 3.5m. Diatoms dominated the water column. Chaetoceros, Thalassiosira, and Detonula were common in the water. Pleurosigma, Guinardia, and Ceratium were 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.        
P: Ceratium spp.          
R: Protoperidinium spp.
R: Pyrophacus spp.

Diatoms:
C: Chaetoceros spp.
C: Thalassiosira spp.        
R: Coscinodiscus spp.      
R: Pseudo-nitzschia spp.  
R: Ditylum spp.
P: Guinardia spp.            
P: Pleurosigma spp.        
R: Rhizosolenia spp.  
R: Skeletonema spp.
R: Lauderia spp.              
R: Navicula spp.
R: Odontella spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
C: Detonula spp.
R: Eucampia  
R: Entomoneis  
R: Grammatophora

Others:
R: Dictyocha spp.
R: sponge spicule

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

* Environmental Information *
TIME: 0723 PT
COLLECTOR: Hannah McGrath

Water Temperature: 11.7°C
Water Conditions: rolling waves
Water Color: 5G 2/6
Visibility: 3.5 m
Tide: Falling, 1.49m, low at 1236 h

Sky: sunny/ blue skies, 20% cloud
Air Temperature: 11.11°C
Wind: offline, 3.13m/S

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

Week of December 16, 2024

Santa Cruz Wharf

Wednesday, December 18, 2024

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

* Impressions *
Another cool and sunny morning at the wharf and a small bait ball was hanging out near the sampling area.  Net tow was similar to last week – mostly detritus/debris and low phytoplankton biomass and diversity.  The assemblage shifted a little and was mostly Tripos/Ceratium this week.  No Pseudo-nitzschia or Alexandrium were observed.

Dinoflagellates:
A: Tripos/Ceratium
C: Prorocentrum

R: Akashiwo
R: Protoperidinium
R: Gymnodinium
R: Lingulodinium

Diatoms:
R: Coscinodiscus
R: Thalassiosira
R: Odontella
R: Paralia
R: Actinoptychus
R: Proboscia

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

Water Conditions (SCW)
Water Temperature: 11.7 C|
Water Conditions: Small swell
Water Color/Code: Brown/green, 5GY 3/4 (#28)
Water Visibility: 3 ft
Tide: Rising, High – 11:24, 5.6 ft
Surf Report: WNW swell, 5-8 ft

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 49.1 F (9.5 C)
Wind: 6 mph, W
Solar radiation: 230 watts/m^2

Monterey Wharf II

Wednesday, December 18, 2024

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

* Impressions *
The wharf this morning was sunny with blue skies. It was a chilly morning with a slight breeze. There were no boats docked near the wharf. The surface of the water was wavy. The water this week was slightly greener than last week with a visibility of 4.0m. Chlorophyll decreased from last week. There was not a lot of phytoplankton in the water. Dinoflagellates dominated the water column. Ceratium was abundant in the water. Dinophysis and Grammatophora were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia and Dinophysis.

Dinoflagellates:
R: Prorocentrum spp.
P: Dinophysis spp.
A: Ceratium spp.
R: Protoperidinium spp.
R: Pyrocystis lunula
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Navicula spp.
R: Odontella spp.
R: Detonula spp.
P: Grammatophora

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

* Environmental Information *
TIME: 0802 PT
COLLECTOR: Hannah McGrath

Water Temperature: 12.7°C
Water Conditions: wavy
Water Color: 5G 2/6
Visibility: 4.0 m
Tide: Rising, 1.19 m, high at 1130 h

Sky: sunny/ clear skies, 5% cloud
Air Temperature: 12.22°C
Wind: offline, 4.02 m/S

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

Week of December 9, 2024

Santa Cruz Wharf

Wednesday, December 11, 2024

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

* Impressions *
Cool and sunny at the wharf this morning.  Net tow was once again mostly detritus/debris this week.  Phytoplankton biomass and diversity decreased and were difficult to find among all the junk. Dinoflagellates remained the dominant group with Prorocentrum as the most abundant.  No Pseudo-nitzschia and Alexandrium counts decreased.

Dinoflagellates:
A: Prorocentrum
C: Tripos/Ceratium
P: Akashiwo

R: Protoperidinium
R: Gymnodinium
R: Dinophysis
R: Oxyphysis

Diatoms:
R: Coscinodiscus
R: Thalassiosira
R: Fragilariopsis

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

Water Conditions (SCW)
Water Temperature: 11.8 C
Water Conditions: Calm
Water Color/Code: Brown/green, 5GY 3/4 (#28)
Water Visibility: 3 ft
Tide: Falling, High – 6:22, 5.8 ft
Surf Report: WNW swell, 6-8 ft

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 48.7 F (9.3 C)
Wind: 4 mph, N
Solar radiation: 222 watts/m^2

Monterey Wharf II

Wednesday, December 11, 2024

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

* Impressions *
The morning was a crisp, breezy, sunny morning. The sky was filled with a thin sheet of clouds. The surface of the water had a little debris. The water this week was the same blue color as last week with a visibility of 6.5m. Chlorophyll significantly decreased from last week. Dinoflagellates dominated the water column. Ceratium and Prorocentrum were common. Dinophysis, Protoperidinium, and Coscinodiscus were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, and Dinophysis.

Dinoflagellates:
C: Prorocentrum spp.
P: Dinophysis spp.
C: Ceratium spp.
P: Protoperidinium spp.
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Detonula spp.
R: Grammatophora

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0803 PT
COLLECTOR: Hannah McGrath

Water Temperature: 11.6°C
Water Conditions: wavy, little debris
Water Color: 10G 2/6
Visibility: 6.5 m
Tide: Falling, 1.58 m, low at 1341 h

Sky: sunny/thin sheet of clouds, 60% cloud
Air Temperature: 12.78°C
Wind: offline, 2.24 m/S

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

Week of December 2, 2024

Santa Cruz Wharf

Wednesday, December 4, 2024

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

* Impressions *
Another crisp sunny morning at the wharf and the bait ball is still hanging around the wharf.  Net tow was mostly detritus this week, but phytoplankton biomass and diversity increased.  Very few diatoms were observed this week and Prorocentrum was the most abundant.  One 4-cell chain of seriata-size Pseudo-nitzschia was seen in the net tow, but none were detected in the probed counts.  Alexandrium counts decreased this week.

Dinoflagellates:
C: Prorocentrum
C: Akashiwo
P: Tripos/Ceratium
P: LRB

R: Protoperidinium
R: Gymnodinium
R: Dinophysis
R: Alexandrium
R: Oxyphysis
R: Gonyaulax
R: Noctiluca
R: Boreadinium

Diatoms:
R: Coscinodiscus
R: Skeletonema
R: Proboscia
R: Pseudo-nitzschia

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

Water Conditions (SCW)
Water Temperature: 11.9 C
Water Conditions: Calm
Water Color/Code: Brown/green, 5GY 3/4 (#28)
Water Visibility: 6 ft
Tide: Rising, High – 11:02, 5.5 ft
Surf Report: WNW swell, 4-6 ft

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 48 F (8.9 C)
Wind: 3 mph, W
Solar radiation: 176 watts/m^2

Monterey Wharf II

Wednesday, December 4, 2024

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

* Impressions *
The wharf this morning was beautiful and sunny! The sky was blue without a cloud in sight. There was no breeze. The surface of the water had rolling waves. The water this week was more blue than last week with a visibility of 5.5m. Chlorophyll decreased from last week (based on RAI). Dinoflagellates dominated the water column. Ceratium and Prorocentrum were common. Amylax, Dinophysis, and Akashiwo were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis and Akashiwo sanguinea.

Dinoflagellates:
P: Akashiwo sanguinea
C: Prorocentrum spp.
P: Dinophysis spp.
C: Ceratium spp.
R: Protoperidinium spp.
R: Polykrikos spp.
R: Pyrophacus spp.
P: 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: Detonula spp.
R: Eucampia
R: Grammatophora

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0824 PT
COLLECTOR: Hannah McGrath

Water Temperature: 12.3°C
Water Conditions: rolling waves
Water Color: 10G 2/6
Visibility: 5.5 m
Tide: Rising, 1.31 m, high at 1108 h

Sky: sunny/ clear skies, 0% cloud
Air Temperature: 12.22°C
Wind: offline, 2.24m/S

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

Week of November 25, 2024

Santa Cruz Wharf

Wednesday, November 27, 2024

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

* Impressions *
Sunny and cool at the wharf.  A lot of bird and mammal activity around the bait ball hanging around in the area.  Phytoplankton biomass increased this week and the net tow was mostly dinoflagellates (very few diatoms).  Ceratium and Prorocentrum were the most abundant this week.  No Pseudo-nitzschia were observed and Alexandrium counts increased 10-fold from last week.

Dinoflagellates:
C: Tripos/Ceratium
C: Prorocentrum
P: Akashiwo

R: Protoperidinium
R: Gymnodinium
R: Dinophysis
R: LRB

Diatoms:
R: Eucampia
R: Thalassiosira
R: Coscinodiscus
R: Licmophora

* Environmental Information *
Time: 9:30 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 12.1 C
Water Conditions: Calm
Water Color/Code: Light brown/green, 5GY 5/6 (#27)
Water Visibility: 7 ft
Tide: Falling, High – 7:26, 5.2 ft
Surf Report: NW swell, 3-5 ft

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 56.7 F (13.7 C)
Wind: 6 mph, WNW
Solar radiation: 350 watts/m^2

Monterey Wharf II

Wednesday, November 27, 2024

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

* Impressions *
The wharf this morning was beautiful but chilly with strong winds. Light pink clouds were hugging the horizon. The surface of the water was choppy. The water this week was a slightly lighter green than last week with a visibility of 4.5m. Dinoflagellates dominated the water column. Ceratium and Prorocentrum were blooming and common in the water. Akashiwo was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, and Akashiwo sanguinea.

Dinoflagellates:
P: Akashiwo sanguinea
C: Prorocentrum spp.
R: Dinophysis spp.
C: Ceratium spp.
R: Protoperidinium spp.
R: Alexandrium spp.
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax

Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Grammatophore

Others:
R: Dictyocha spp.

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

* Environmental Information *
TIME: 0703 PT
COLLECTOR: Hannah McGrath

Water Temperature: 12.3°C
Water Conditions: choppy
Water Color: 5GY 2/2
Visibility: 4.5 m
Tide: Rising, 1.58m, high at 0732 h

Sky: mostly clear skies, 20% cloud
Air Temperature: 10.0°C
Wind: offline, 4.02 m/S

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

Week of November 18, 2024

Santa Cruz Wharf

Wednesday, November 20, 2024

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

* Impressions *
Overcast and windy at the wharf this morning.  Phytoplankton biomass and diversity decreased dramatically this week and the net tow was mostly detritus/debris.  The assemblage was mostly dinoflagellates and Prorocentrum was the most abundant.  No Pseudo-nitzschia were observed and Alexandrium counts decreased an order of magnitude.

Dinoflagellates:
C: Prorocentrum
C: Akashiwo
P: Protoperidinium
P: Gymnodinium

R: Tripos/Ceratium
R: Alexandrium

Diatoms:
P: Leptocylindrus

R: Thalassiosira
R: Pleurosigma
R: Coscinodiscus
R: Fragilariopsis
R: Entomoneis

* Environmental Information *
Time: 9:30 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 11.7 C
Water Conditions: Choppy w/swell
Water Color/Code: Dark green, 10GY 3/4 (#29)
Water Visibility: 3 ft
Tide: Rising, Low – 6:50, 3.4 ft
Surf Report: WNW swell, 8-10 ft

Weather Conditions (KudelaHawk)
Sky: Overcast, windy
Air Temperature: 53.1 F (11.7 C)
Wind: 10 mph, NNE
Solar radiation: 152 watts/m^2

Monterey Wharf II

Wednesday, November 20, 2024

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

* Impressions *
The wharf was chilly with minimal breeze this morning! Along the horizon there was fog/haze. The surface of the water was calm. The water this week was a darker green than last week. Dinoflagellates dominated the water column. Prorocentrum was abundant in the water. Akashiwo and Ceratium were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis and Akashiwo sanguinea.

Dinoflagellates:
P: Akashiwo sanguinea
A: Prorocentrum spp.
R: Dinophysis spp.
P: Ceratium spp.
R: Gonyaulax spinifera
R: Alexandrium spp.
R: Gyrodinium spp.
R: Polykrikos spp.
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax

Diatoms:
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Odontella spp.

Others:
R: Dictyocha spp.
R: Sponge spicule

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

* Environmental Information *
TIME: 0714 PT
COLLECTOR: Hannah McGrath

Water Conditions: calm
Water Color: 10Y 2/2
Tide: Rising , 1.01m, high at 1243 h

Sky: cloudy, 90% cloud
Air Temperature: 5.0 °C
Wind: offline, 1.34 m/S

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

Week of November 11, 2024

Santa Cruz Wharf

Wednesday, November 13, 2024

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

* Impressions *
Sunny and cool at the wharf this morning.  Phytoplankton biomass increased this week and the assemblage shifted back to mostly dinoflagellates.  Prorocentrum and Ceratium were the most abundant.  No Pseudo-nitzschia were observed in the net tow and none were detected in the probed counts.  Alexandrium counts tripled from last week, but the cell concentration is still low.

Dinoflagellates:
C: Tripos/Ceratium
C: Prorocentrum
C: LRB

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

Diatoms:
R: Leptocylindrus
R: Thalassiosira
R: Paralia
R: Thalassionema
R: Licmophora
R: Pleurosigma
R: Coscinodiscus
R: Asteromphalus
R: Hemidiscus

* Environmental Information *
Time: 9:30 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 12.3 C
Water Conditions: Calm
Water Color/Code: Brown/green, 5GY 3/4 (#28)
Water Visibility: 3 ft
Tide: Falling, High – 7:37, 5.8 ft
Surf Report: WNW swell, 5-7 ft

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 52.3 F (11.3 C)
Wind: 3 mph, NNW
Solar radiation: 373 watts/m^2

Monterey Wharf II

Wednesday, November 13, 2024

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

* Impressions *
The water this morning was stinky. It was sunny with wispy clouds and no breeze. The surface of the water had rolling waves. The water this week was a lighter green than last week with a visibility of 3.0m. Dinoflagellates dominated the water column. Ceratium and Prorocentrum were common. Ditylum and Chaetoceros were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
R: Akashiwo sanguinea
C: Prorocentrum spp.
R: Dinophysis spp.
C: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
R: Cochlodinium spp.
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax
Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
P: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Odontella spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Proboscia spp.
R: Eucampia
R: Lioloma
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs

* Environmental Information *
TIME: 0801 PT
COLLECTOR: Hannah McGrath

Water Temperature: 12.5°C
Water Conditions: rolling waves
Water Color: 10Y 3/4
Visibility: 3.0 m
Tide: Falling, 1.80m, low at 1434 h

Sky: sunny/wispy clouds, 30% 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 4, 2024

Santa Cruz Wharf

Wednesday, November 6, 2024

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

* Impressions *
Cool, windy, and clear at the wharf this morning.  Phytoplankton biomass was similar to last week.  Diatom abundance and diversity increased this week and the net tow was an even mix of diatoms and dinoflagellates.  Tripos (Ceratium) and Chaetoceros were the most abundant.  Pseudo-nitzschia were mostly delicatissima size, but there were a few seriata size cells.  No Pseudo-nitzschia were detected in the probed counts, but Alexandrium cells were counted.

Dinoflagellates:
C: Tripos/Ceratium
C: Akashiwo
P: Prorocentrum
P: Gymnodinium
P: LRB

R: Oxyphysis
R: Dinophysis
R: Protoperidinium
R: Scrippsiella

Diatoms:
C: Chaetoceros
C: Leptocylindrus
C: Eucampia
P: Pseudo-nitzschia
P: Thalassiosira
P: Skeletonema
P: Dactyliosolen

R: Lauderia
R: Asterionellopsis
R: Fragilariopsis
R: Pleurosigma
R: Coscinodiscus
R: Guinardia
R: Nitzschia
R: Cylindrotheca
R: Asteromphalus
R: Entomoneis

Other:
R: Dictyocha

* Environmental Information *
Time: 8:00 am
Collector: M. Conci

Water Conditions (SCW)
Water Temperature: 12.5 C
Water Conditions: Choppy
Water Color/Code: Brown/green, 5GY 3/4 (#28)
Water Visibility: 6 ft
Tide: Rising, High – 12:00, 5.1 ft
Surf Report: NW swell, 3-5 ft

Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 60.6 F (15.9 C)
Wind: 12 mph, W Solar radiation: 193 watts/m^2

Monterey Wharf II

Wednesday, November 6, 2024

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

* Impressions *
The morning this week was sunny with blue skies but windy. The surface of the water was choppy and wavy. The water smelled funky this morning. The water this week was the same color as two weeks ago with a visibility of 2.5m. Dinoflagellates dominated the water column. Prorocentrum was abundant in the water. Akashiwo was common. Alexandrium was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.

Dinoflagellates:
C: Akashiwo sanguinea
A: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
P: Alexandrium spp.
R: Scrippsiella spp.
R: Polykrikos spp.
R: Cochlodinium spp.
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: Skeletonema spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Asteromphalus spp.
R: Leptocylindrus spp.
R: Detonula spp.
R: Eucampia
R: Entomoneis

Others:
R: Dictyocha spp.
R: Oligotrich

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

* Environmental Information *
TIME: 0816 PT
COLLECTOR: Hannah McGrath

Water Temperature: 13.2°C
Water Conditions: choppy/wavy
Water Color: 5Y 2/2
Visibility: 2.5 m
Tide: Falling, 1.19 m, high at 1206 h

Sky: sunny/ clear skies, 5% cloud
Air Temperature: 13.89°C
Wind: offline, 2.24m/S

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