Santa Cruz Wharf
Wednesday, October 23, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
Clear, sunny, and cool at the wharf this morning with a bait ball hanging out in the sampling area. Water temperature dropped 2C from last week and the phytoplankton biomass decreased as well. Net tow remains mostly dinoflagellates, but diatom diversity increased this week. Akashiwo and Prorocentrum were the most abundant. A single seriata-size Pseudo-nitzschia chain was seen in the net tow, but none were detected in the probed counts. Alexandrium counts decreased again this week.
Dinoflagellates:
C: Akashiwo
C: Prorocentrum
P: Gymnodinium
P: LRB
R: Ceratium
R: Alexandrium
R: Oxyphysis
R: Dinophysis
R: Lingulodinium
R: Margalefidinium
R: Scrippsiella
Diatoms:
R: Lauderia
R: Fragilariopsis
R: Pleurosigma
R: Chaetoceros
R: Coscinodiscus
R: Guinardia
R: Paralia
R: Pseudo-nitzschia
R: Licmophora
R: Thalassiosira
Other:
R: Dictyocha
* Environmental Information *
Time: 8:30 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 13.6 C
Water Conditions: Calm
Water Color/Code: Brown/green, 5GY 3/4 (#28)
Water Visibility: 6 ft
Tide: Falling, Low – 9:35, 3.5 ft
Surf Report: NW swell, 3-4 ft
Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 50.4 F (10.2 C)
Wind: 6 mph, W
Solar radiation: 152 watts/m^2
Monterey Wharf II
Wednesday, October 23, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
The wharf this morning was sunny with clear skies. There were lots of sea lions swimming at my site. The surface of the water was covered with small glimmering fish. It was a little hazy along the horizon. The water this week was greener than last week with less visibility (2.5m) in the water column. Chlorophyll visually increased from last week. Dinoflagellates dominated the water column. Akashiwo was abundant. Prorocentrum was common. Chaetoceros, and Pseudo-nitzschia delicatissima 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
C: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Alexandrium spp.
R: Cochlodinium spp.
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax
Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
P: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Leptocylindrus spp.
R: Eucampia
* Environmental Information *
TIME: 0814 PT
COLLECTOR: Hannah McGrath
Water Temperature: 13.0°C
Water Conditions: calm
Water Color: 5Y 2/2
Visibility: 2.5 m
Tide: Falling, 1.10m, low at 0946 h
Sky: sunny/ clear skies, 0% cloud
Air Temperature: 11.0°C
Wind: offline, 2.68m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%