Corolla spectabilis: Pteropod–The Race Rocks Taxonomy

 

Pteropods are occasionally found in the plankton that passes by Race Rocks and are found distributed throughout the Atlantic and Pacific Oceans..They have a transparent body with no external shell. An internal gelatinous pseudoconch provides protection and skeletal support. A continuous plate is formed by the oval wings which are marked by indentations.A long proboscis partially fused with the wing plate.The pteropod has a wingspan of up to 8cm. It lacks radula and jaws and it has a distinctive dark gut nucleus.Because it is planktonic, its biotic associations include predation by anything that eats jellyfish.

REFERENCE: ”Pacific Coast Pelagic Invertebrates” by David Wrobel and Claudia Mills—Note: This source had an error which was pointed out to us by Moira Galbraith of DFO:—-“I think that your video in the Race Rocks portion of the website is actually of Corolla spectabilis. The 12 mucous glands on the anterior lateral borders of the wing plate are a species characteristic; C.calceola will have 18. Also according to Carol Lalli, only Corolla spectabilis occurs in the eastern Pacific.
See http://faculty.washington.edu/cemills/ActaErrata.html for an update.

Domain: Eukarya
Kingdom: Animalia
Phylum: Mollusca
Subclass: Opisthobranchia
Order: Thecosomata
(Suborder)(Pseudothecosomata)
Family: Cymbuliidae
Genus: Corolla
Species: spectabilis
Common Name: Pteropod
Other Members of the Phylum Mollusca at Race Rocks.

taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.

 

Census & Independent Pups

Weather

  • Visibility: 15 Miles
  • Wind: 1-10 knots N/SW
  • Sky: sunny and clear
  • Water: mostly calm

Boats/Visitors

  • Didn’t notice any ecotours go by today
  • No visitors

Ecological

  • Bernard left the two pups today, not sure if he’ll return or not.
  • The pups are almost the same size now. Both are nice and plump and seem healthy.
  • Lots of Black Oyster Catchers and Cormorants around lately

Census

  • California Sea Lions – 85
  • Stellar Sea Lions – 60
  • Elephant Seals – 5 (two pups, three adult males)
  • Harbour Seals – 5
  • Cormorants – 200
  • Seagulls – 150
  • Bald Eagles – 5
  • Black Oyster Catchers – 15
  • Black Turnstones – 10

Dr. Anita Brinkmann-Voss…. In Memoriam

Dr. Anita Brinckmann-Voss passed away on December 12 at her home in Sooke BC. Anita had been a long time friend of Lester B. Pearson College. From 1986, to 2005,  Dr. Anita Brinckmann-Voss  BC assisted the students and faculty of Lester Pearson College with her understanding of marine invertebrate ecology and her expertise in the taxonomy of hydroids and other invertebrates. Anita was one of the very few remaining taxonomists in the world who worked at such depth with this group of organisms.  She assisted many students with their work in biology and marine science and worked closely with several divers at the college who collected specimens for her.  Anita also was a regular donor to the Race Rocks program at the college.

Dr. Dale Calder, a colleague of Anita who works with the Royal Ontario Museum wrote the following about Anita:

“I knew of Dr. Anita Brinckmann-Voss and her research on hydrozoans from my days as a graduate student in Virginia during the 1960s. Her work at the famous Stazione Zoologica in Naples, Italy, was already widely known and respected.
Most noteworthy, however, was a landmark publication to come: her monumental monograph on hydrozoans of the Gulf of Naples, published in 1970. It highlighted studies on hydrozoan life cycles and was accompanied by the most beautiful illustrations of these marine animals that have ever been created. See the complete copy with color plates here:  Brinckmann70:

 

It was not until 1974, and the Third International Conference on Coelenterate Biology in Victoria, British Columbia (BC), Canada, that I met her for the first time. We discovered having common scientific interests and saw absolutely eye-to-eye on most issues. It was the beginning of a scientific collaboration and friendship that would last a lifetime. I always greatly valued her scientific insights, but I also appreciated her humility, good nature, and keen sense of humour.

In having moved from Europe to Canada, first to Winnipeg, Manitoba, and later to Toronto, Ontario, Anita’s research shifted from Mediterranean species to those of Canadian waters and especially British Columbia. Her professional base became the Royal Ontario Museum and the University of Toronto, but it was far from the ocean. She soon acquired a residence in Sooke, BC, conveniently located on the beautiful Pacific coast. Life cycle research was now possible on Canadian species, and at times several hundred cultures of hydrozoans were being maintained by her. One final move was made, from Ontario to permanent residence at her cottage in Sooke. From there she kept marine research underway the rest of her life. A focus became Race Rocks and the rich hydrozoan fauna inhabiting the site.

Anita altered the direction of my career in a most positive way. It was largely thanks to her that I moved from employment as a benthic ecologist in South Carolina to a curatorial position at the Royal Ontario Museum in 1981. It was the best career move of my life. Thank you, Anita!

Over the decades we collaborated in research, shared our libraries, and jointly authored several scientific papers. Outside a professional association, we were close friends. My wife and I often visited Anita at her homes, first in Pickering, Ontario, near Toronto, and later in Sooke. In return, she often visited us in Toronto after moving west. It is an understatement to say she will be sorely missed.”
-(Quote from Dr. Dale Calder, ROM, 2018)

Links to her work with the college:
https://www.racerocks.ca/dr-anita-brinckmann-voss/

Other references: https://www.racerocks.ca/tag/anita-brinckmann-voss/

 

 

Plectrophenax nivalis: Snow Bunting –The Race Rocks Taxonomy

Laas Parnell took these pictures of Snow Buntings on November 9, 2017. Pam Birley had been the only one to take pictures of them previously in 2005 and 2007 on the remote cameras at Race Rocks.

This is a very pale Snow Bunting . Snow Buntings are uncommon around Victoria and best seen in late fall-early winter, so any bunting in February is unusual. This is only the fourth Snow Bunting record for the Rocky Point Bird Observatory checklist. The last picture is a poor image through a blurry remote camera 5 housing,but the only one we have so far of a male snow bunting which was taken by Pam in March 2007.
Domain Eukarya
Kingdom Animalia
Phylum Chordata
Sub-Phylum Vertebrata
Class Aves
Order Passerifomes
Family Emberizidae
Genus Plectrophenax
Species nivalis
Common Name: Snow Bunting
Other Members of the Class Aves at Race Rocks.


Images of Snow buntings by Laas Parnell–Ecoguardian at Race Rocks

taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.
Garry Fletcher

Harlequin Ducks are Back

Weather

  • Visibility: 15 Miles
  • Wind:  15-25 NE in the morning 5-10 NW in the afternoon
  • Sky: partly cloudy throughout the day
  • Water: choppy, about 1 metre waves

Boats/Visitors

  • Had some ecotours cruise by

Ecological

  • Saw the Harlequin ducks for the first time in months
  • still plenty of sea lions but less everyday
  • haven’t spotted an elephant seal today but I’m sure they are around

Census October 26th

Weather

  • Visibility: 15 Miles
  • Wind:  0-15 SE
  • Sky: clear most of the day
  • Water: calm

Boats/Visitors

  • Had plenty of ecotours cruising by

Ecological

  • Not as many sea lions today, they might have peaked by now but last year they didn’t start leaving until mid november
  • there were a couple injured sea lions plus a dead one
  • only saw one elephant seal today but I’m sure the others are around
  • So many stellars, mostly on the outer rocks
  • there was also an eagle
  • haven’t seen the otter or any oyster catchers
  • also saw a few humpbacks out there (not included in census)

Notes

  • plenty of solar input today

Census

  • Stellar Sea Lions – 235
  • California Sea Lions – 421
  • Harbour Seals – 18
  • Elephant Seals – 1(seen) I’m sure there are at least 3 or 4 more around
  • Gulls (unspecified) – 456
  • Cormorants – 713
  • Black Turnstones – 22
  • Geese – 8
  • Eagle – 1

Census Day

Weather

  • Visibility: 15 Miles
  • Wind:  0-10 NE
  • Sky: Overcast
  • Water: calm, sort of, there was a bit of a swell out there

Boats/Visitors

  • Kyle dropped off a food order and helped with some facility work other than that there were the usual ecotours

Ecological

  • More sea lions than last week
  • Same 5 elephant seals
  • a lot of birds, gulls, turnstones, oystercatchers, geese, cormorants and an eagle
  • Still not sure if the sea otter is out there, he is very hard to see from here

Notes

  • DnD was blasting today
  • The new generator is working great, just need more fuel

Census

  • California Sea Lions – 512
  • Stellar Sea Lions – 141
  • Unspecified Gulls – 620
  • Cormorants – 228
  • Black Turnstones – 26
  • Oystercatchers – 22
  • Geese – 16
  • Eagle – 1
  • Harbour Seals – 30
  • Elephant Seals – 5

Census day

Weather

  • Visibility: 15 Miles
  • Wind:  0-10 W
  • Sky: cloudy throughout the day and a but of a drizzle this morning
  • Water: calm, but the current was running pretty good

Boats/Visitors

  • The new generator was set up today so we had a few people to come in and set that up which is great

Ecological

  • even more sea lions this time, of both stellars and californias
  • also 2 more elephant seal showed up this morning, both female

Notes

  • tried to set up the electric fence again by the generator room but the sea lions tear back it down in minutes
  • Saw the sea lions today that was darted a couple weeks ago and he is still healing (pictures in gallery)
  • And the sea lion that currently has a band around its neck is still around
  • There was a stellar that I thought might have something around his neck but it was just a gash, possibly from other sea lion?

Census

  • Stellar Sea Lions – 62
  • California Sea Lions – 456
  • Elephant Seals – 5 (all female)
  • Harbour Seals – 128
  • Gulls (unspecified) – 524
  • Cormorants – 367
  • Black turnstones – 32
  • Sparrows – 43
  • Oyster Catchers – 6
  • Sea Otter ( I can’t sea it very well but I’m sure it was around ) – 1

Census Day

Weather

  • Visibility: 15 Miles
  • Wind:  10-20 NE
  • Sky: clear all day
  • Water: calm

Boats/Visitors

  • Had some visitors come by from Eagle Wing Tours

Ecological

  • The 3 female elephant seals are still here
  • Spotted some California Gulls today too

Notes

  • There was another sea lion with a band stuck around his neck, will alert DFO so they can come out here and help out the sea lion, the last pictures are of this sea lion
  • It was pointed out to me that I have not been including the sea otter in my census, I admit I have a hard time spotting him from here so I often forget about him

Census

  • stellar sea lions – 42
  • california sea lions – 286
  • gulls – 324
  • oyster catchers – 8
  • black turnstones – 18
  • sparrows – 32
  • harbour seals – 87
  • sea otter – 1

An Elephant Seal

Weather

  • Visibility: 15 Miles
  • Wind:  10-15 SW
  • Sky: cloudy this morning had a bit of fog then cleared up in the afternoon
  • Water: calm

Boats/Visitors

  • Had a few ecotours and personal vessels cruise by today

Ecological

  • plenty of stubborn sea lions along with one female elephant seal mixed in with them

Notes

  • It was nice to see an elephant seal around, I walked around taking a few pictures today
  • The sea lions were very stubborn today, I couldn’t fix the fence by the student house because they would charge me whenever I got close