Santa Cruz Wharf
Wednesday, July 19, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
Another cool morning with a marine layer at the wharf. Net tow was similar to last week with an increase in phytoplankton biomass. Eucampia remains the most abundant genus. The handful of Pseudo-nitzschia observed were seriata-size, but no P. australis or P. multiseries were seen. Alexandrium counts are holding steady.
Dinoflagellates:
R: Ceratium
R: Margalefidinium
R: LRB
R: Protoperidinium
R: Prorocentrum
R: Alexandrium
R: Akashiwo
R: Dinophysis
R: Boreadinium
R: Gymnodinium
R: Oxyphysis
R: Polykrikos
R: Gyrodinium
Diatoms:
A: Eucampia
P: Guinardia
P: Detonula
R: Thalassiosira
R: Chaetoceros
R: Coscinodiscus
R: Lauderia
R: Dactyliosolen
R: Ditylum
R: Pseudo-nitzschia
R: Pleurosigma
R: Odontella
R: Tropidoneis
R: Asteromphalus
Other:
R: Dictyocha
* Environmental Information *
Time: 8:45 am
Collector: MC/GG/HA
Water Conditions (SCW)
Water Temperature: 15.5 C
Water Conditions: Calm
Water Color/Code: Dark green, 10G 2/6 (#12)
Water Visibility: 4 ft
Tide: Rising, Low – 6:46, -0.5 ft
Surf Report: NW swell, 1-2 ft
NDBC buoy 46042
– Significant wave height: 5.6 ft
– Swell height/direction: 5.2 ft, NW
– Wind wave height/direction: 1.3 ft, WNW
Weather Conditions (KudelaHawk)
Sky: Marine layer
Air Temperature: 55 F (12.9 C)
Wind: 1.8 mph, N
Solar radiation: 70 watts/m^2
Monterey Wharf II
Wednesday, July 19, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
While the rest of the state bakes in the heat, we remain in our cool pocket – puffy vests and a heated car seat were needed on this chilly morning at the wharf after some overnight mist. Surface waters were clean and flat, and the Eucampia bloom from last week persists. Just a smattering of HAB species were present in very very low numbers: Pseudo-nitzschia, Dinophysis, Alexandrium, Cochlodinium, and Akashiwo.
Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Scrippsiella spp.
R: Polykrikos spp.
R: Cochlodinium spp.
R: Gymnodinium spp
R: Boreadinium cf
Diatoms:
R: Chaetoceros spp.
P: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
P: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Nitzschia spp.
A: Eucampia
Others:
R: Phaeocystis spp. (singletons and clumps)
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
A: rotifers
* Environmental Information *
TIME: 0805 PT
COLLECTOR: Holly Bowers
Water Temperature: 14.3°C
Water Conditions: flat
Water Color: 10Y 2/2
Visibility: 2.5 m
Tide: Rising, -0.04 m, low at 0700 h
Chlorophyll: 44.74 mg/m^3 by in vivo RFU
Sky: overcast, 100% cloud
Air Temperature: 12.22°C
Wind: NA, 3.58m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%