Santa Cruz Wharf
Wednesday, March 1, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: None
– Margalefidinium: None
* Impressions *
Another cold and windy morning at the wharf. Net tow remains mostly detritus/debris, but the phytoplankton biomass increased this week. Phytoplankton assemblage was mostly diatoms and diatom diversity was strikingly high (almost double the # of genera seen last week). Chaetoceros and Thalassiosira remain the most abundant. Pseudo-nitzschia in the net tow were seriata size and based on the probed counts they were likely P. multiseries.
Dinoflagellates:
R: Akashiwo
R: Protoperidinium
R: Ceratium
R: Gymnodinium
Diatoms:
C: Chaetoceros
C: Thalassiosira
C: Thalassionema
C: Skeletonema
P: Dactyliosolen
P: Lauderia
R: Guinardia
R: Paralia
R: Coscinodiscus
R: Ditylum
R: Pleurosigma
R: Asterionellopsis
R: Eucampia
R: Odontella
R: Asteromphalus
R: Cylindrotheca
R: Rhizosolenia
R: Pseudo-nitzschia
R: Lithodesmium
R: Actinoptychus
R: Entomoneis
R: Licmophora
Other:
C: Ebria
R: Dictyocha
* Environmental Information *
Time: 8:30 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 9.8 C
Water Conditions: Calm
Water Color/Code: Green, 5GY 3/4 (#28)
Water Visibility: 2 ft
Tide: Falling, High – 5:39, 4.9 ft
Surf Report: WNW swell, 5-7 ft
NDBC buoy 46042
– Significant wave height: 14.4 ft
– Swell height/direction: 10.2 ft, WNW
– Wind wave height/direction: 10.2 ft, NW
Weather Conditions (KudelaHawk)
Sky: Sunny and windy
Air Temperature: 42.6 F (5.9 C)
Wind: 15 mph, WSW
Solar radiation: 298 watts/m^2
Monterey Wharf II
Wednesday, March 1, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
The wharf this morning was once again very windy (25 mph winds!). There were no boats docked this morning. The surface waters were choppy and rough making it difficult to take phytoplankton tows. The sky directly above me was mostly clear. In the distance, you could see many white caps on the surface of the water. The water this week was a slightly darker green than last week with the same visibility of 2..5m. Chlorophyll decreased from last week. Diatoms dominated the water column. Chaetoceros and Thalassiosira were common in the water. The HAB species that were present in the water this morning included P. nitzschia and Dinophysis.
Dinoflagellates:
R: Dinophysis spp.
R: Protoperidinium spp.
R: Scrippsiella spp.
R: Gyrodinium spp. (grey green)
R: Lingulodinium polyedrum
Diatoms:
C: Chaetoceros spp.
C: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma 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: Asterionellopsis spp.
R: Detonula spp.
R: Paralaria spp.
R: Striatella spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0726 PT
COLLECTOR: Hannah McGrath
Water Temperature: 10.39°C (note: the Monterey station was up and running again)
Water Conditions: rough waves
Water Color: 10GY 2/4
Visibility: 2.5 m
Tide: Falling at 1.30m, low at 1334h
Chlorophyll: 4.945mg/m^3 by in vivo RFU
Sky: sunny/ clear skies, 2% cloud
Air Temperature: 7.22°C
Wind: NW, 11.18m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%