Santa Cruz Wharf
Wednesday, October 5, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: None
– Dinophysis: Present
– Margalefidinium: Common
* Impressions *
Wharf was engulfed in the marine layer this am and there was a bait ball in the sampling area. Net tow had a lot of detritus/debris this week and phytoplankton biomass decreased. Phytoplankton assemblage was mostly dinoflagellates and Margalefidinium and Akashiwo were the most abundant. Alexandrium counts decreased again this week.
Dinoflagellates:
C: Margalefidinium
C: Akashiwo
C: Ceratium
P: Dinophysis
R: Prorocentrum
R: Protoperidinium
R: Gyrodinium
R: Boreadinium
R: Oxytoxum
R: LRB
Diatoms:
R: Thalassiosira
R: Coscinodiscus
R: Lauderia
R: Dactyliosolen
R: Navicula
R: Chaetoceros
R: Fragilariopsis
R: Asteromphalus
R: Paralia
Other:
R: Dictyocha
* Environmental Information *
Time: 7:05 am
Collector: P. Daniel
Water Conditions (SCW)
Water Temperature: 15.7 C
Water Conditions: Calm
Water Color/Code: Green, 10G 2/6 (#12)
Water Visibility: 4 ft
Tide: Rising, High – 8:41, 4.2 ft
Surf Report: SSW swell, 2.4 ft
NDBC buoy 46042
– Significant wave height: 6.6 ft
– Swell height/direction: 3.6 ft, WNW
– Wind wave height/direction: 5.6 ft, NW
Weather Conditions (KudelaHawk)
Sky: Foggy/marine layer
Air Temperature: 52.5 F (11.4 C)
Wind: 3 mph, WNW Solar radiation: 2 watts/m^2
Monterey Wharf II
Wednesday, October 5, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: None
– Margalefidinium: Rare
* Impressions *
This morning was misty and foggy. There were a lot of commercial and local fishermen on the dock. The water level was higher than usual (less barnacles were seen under the dock). There was wave movement and a slight inconsistent breeze. The water visibility increased from last week; however, the water color remained the same. The chlorophyll significantly decreased from last week with Chaetoceros being the most common in the phytoplankton assemblage. The following HAB species were observed: Pseudo-nitzschia, Alexandrium spp, Akashiwo, and Cochlodinium.
Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Alexandrium spp.
R: Scrippsiella spp.
R: Gyrodinium spp. (grey green)
R: Cochlodinium spp.
R: Oxyphysis
R: Amylax
Diatoms:
A: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
P: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Asteromphalus spp.
R: Asterionellopsis 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: 0632 PT
COLLECTOR: Hannah McGrath
Water Temperature: 16.3 °C
Water Conditions: Wavy
Water Color: 5GY 2/2
Visibility: 4.5 m
Tide: rising, 1.19 m, high at 0841 h
Chlorophyll: 6.844 mg/m^3 by in vivo RFU
Sky: foggy and misting,100% cloud
Air Temperature: 15.0°C
Wind: NW, 2.68 m/S