Tag Archives: Fish

Freaky Fish

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Good news! The storm didn’t leave us with any damage, and the fence withheld the strong winds with only a few minor repairs needed this morning (I’ve seen the sea lions do much worse).

There have been a few weak/droopy sections of the fence that tend to come down the most often so my dad spent his morning fixing those and testing to ensure the current is running strong all the way through, which it now is!

The wind picked up in the afternoon and the clouds rolled in so our afternoon was quite relaxed inside. At least for a little while until my dad decided to get back to work and clean out the wood stove which is now sparkling and clear.

I swear he’s going to take my job while I’m not looking if he works any harder!

While working outside today I found the dried up remains of a small dead fish, that I assume a bird must have dropped. Nothing out of the ordinary, that happens all the time, however on closer inspection it had more teeth than I’ve ever seen in a single animal.

My initial thought is that it could be a juvenile lingcod as they have many rows of teeth, but I am still trying to confirm that. I’ve asked around and I’m hoping someone might see this post and be able to enlighten me. Either way, its the stuff nightmares are made of!

Facility Work:

  • Repaired fence
  • Cleaned wood stove 
  • Chopped wood

Vessels:

  • Ecotourism: 9

Weather:

  • Sky: Sun and cloud, overcast in afternoon
  • Wind: Low of 2 knots, high of 14 knots, with gusts up to 35 knots
  • Sea: Whitecaps in the afternoon
  • Temperature: Low  11•C, High  14•C

** All wildlife photos taken at the furthest distance possible, and may be cropped to improve detail! **

Engraulis mordax: Northern Anchovie- The Race Rocks taxonomy

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 This specimen was found today at Race Rocks see  the ecoguardians post

 

Classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Clupeiformes
Family: Engraulidae
Genus: Engraulis
Species: E. mordax

common name:  Northern Anchovie
Other Other fish at Race Rocks.

–Garry Fletcher

see this excellent reference: https://animaldiversity.org/accounts/Engraulis_mordax/

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.

 

Blustery Fall Winds

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Today’s Weather: 

  • Sky overcast, rainy
  • Visibility less than 5 NM
  • Wind 25-30 knots NE
  • Sea state: Swells up to 3-4 ft, fast moving

Visitors: 

  • Greg and contractors have visited a few times this week to complete work on the island.
  • Not many eco-tourism boats at this point in the season. One or two per day on average travelling through the reserve. Yesterday a sizeable group of kayaks passed through, as well as a handful of pleasure crafts.

Ecological Notes: 

  • This week we have been seeing an incredible number of humpback whales in the strait; Yesterday we counted at least six visible at once! We have seen them most often breaching and fishing west/south west of the reserve, although we were surprised by one very close to our jetty just this week. We have observed whale watching boats approaching the whales, and when this occurs their behavior seems to change. Instead of surfacing frequently and in a more leisurely fashion, they dive for long periods of time and cover larger distances during their dives, surfacing further from the boats each time. Consistently observed, if the vessels follow the whales they seem to dive longer and swim further away still.
  • The sea lion population is stable now, with a steady 1000-1200 present in the reserve. They seem to have settled in for the season, each having their favorite spot to rest. We have noticed that the sea lions that we are able to distinguish individually indeed do return to the same spot to rest for typically at least a few consecutive days. Although sea lions ingest upwards of 5% of their mass in fish each day on average, we have noticed that often they do not leave their resting spots for days at a time if they are not disturbed.
  • The bald eagle presence in the reserve has also suddenly jumped over the past week to two weeks, presumably due to spawning salmon returning to estuary’s at this time of year. A few days ago we spotted 8 in the reserve as the sun rose over the horizon. Early mornings are the most active part of the day for wildlife fishing: no human/vessel activity disruptions, but it also seems to be part of their natural routine. As the sun rises each day, the air is filled with the sound of eagles, sea lions, seals, and seagulls all looking for breakfast!
  • No elephant seals in the reserve this week. We hope that we might be joined by more juveniles through this fall season- they are a highlight of our daily routine when they are here.

Blooming Biodiversity

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Weather:

  • Visibility 15+ NM
  • Sky clear
  • Wind 15-20 NE diminishing to 5-10 SE
  • Sea state: calm
  • Temperature 22.5°C

Visitors/Marine Traffic: 

  • A trickle of pleasure crafts outside of the reserve, 4 inside of the reserve
  • Yesterday a very small vessel came to the reserve with 3 people aboard. They approached each outcropping very closely, scaring the animals into the water.
  • This evening a boat with 6 passengers sped through the reserve. They passed the resting sea lions very closely, and sped through the passage where many were swimming and fishing.
  • On Friday Greg visited to work on the generator, and Nick came too
  • There have been large commercial barges steadily passing through the straight. Since the weather has been so calm we can hear them inside the house, even though they are nearly 8 km away.

Ecological:

  • The elephant seals have been taking daily soaks in the shallow water surrounding the jetty in this warm weather.
  • In the shallow and warm waters this week we have been spotting schools of small fish. The larger animals in the water seem to ignore them completely.
  • There have been blooms of jellyfish passing by in the currents, mostly water jellies and the small “sea gooseberries” which seem to glitter in the light due to the the tiny hairs (cilia) that pulsate to move them through the water.
  • A few harlequin ducks spent the evening in the reserve on Friday

Census: 

  • 16 Canada Geese
  • 8 Oyster Catchers
  • 4 Crows
  • 8 Elephant Seals
  • 300 Seagulls
  • 2 Cormorants
  • 2 Bald Eagles
  • 48 Sea Lions
  • 9 Harbour Seals

New Desalinator and New Adult Female Elephant Seal

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Wind: 1-44 knots from NE yesterday to W this evening as the wind increased
Sea State: up to 3 m waves breaking on west side of the island
Visibility: 5-10 NM
Sky: overcast with rain and a few sunny patches today
Temperature: 6-11 °C
Atmospheric CO2: 413.70 ppm (recorded by NOAA at Mauna Loa Observatory, Hawaii)

It was a flurry of activity on the island yesterday. A big change from having no human visitors for a week and a half. Greg brought seven other people on the boat Second Nature. Three volunteers from the college (Lawrence, Sandra and Vincent) came to help with some maintenance and clean up tasks. John and Mike, from Pacific Coast Fire Equipment, were here to do the yearly inspection of the fire extinguishers. Warren and Ric spent almost six hours doing the electrical and plumbing hook ups and tests of the new desalinator. The desalinator room is very cramped quarters with thick concrete walls and only a six foot high ceiling inside. As Race Rocks legend goes, the building was originally constructed as a fallout shelter for Cold War fears of nuclear attack. It apparently contained emergency supplies and two bunks for the lighthouse keeper and assistant keeper. There was no space for their families. In 1975, the building was converted to a water filtration plant.

The non-human activity was busy too, with the arrival of a new adult female elephant seal. She showed up soon after the boat, staying on the boat ramp for a while before coming up to the middle of the island. The alpha male chased her around, they barked a lot, then she settled in the grassy area between the desalinator shed and the flagpole, where she still is this evening. Now there are two suspected pregnant seals hanging out in the centre of the island near the mother, pup and alpha male. The two other males appear to be keeping their distance. One is near the jetty. The other is behind the house by the compost bins.

The desalinator is running well after a total of nine hours of use. This evening, I was delighted to see that it had pumped 600 L of fresh water into the tank. Combined with the 500 L from yesterday, the desalinator has produced more fresh water than has been used since my shift began on December 21. At this rate, the 4,500 L fresh water tank should be filled up in about a week. At that point, the desalinator will be run regularly, but for shorter amounts of time. It’s an energy intensive way to produce water which consists of a reverse osmosis system and secondary UV filter. The temporary method of getting fresh water while the desalinator was out of commission was also very energy intensive. It consisted of filling up a 1,000 fresh water tank at the college, boating it to the island, and pumping it up to the tank from the boat. The water usage is planned to increase a little bit in the near future, due to some much needed pressure washing of the exteriors of the buildings, to prevent them from being overtaken by algae.

See the photos below for some recent views on the island.

Scorpaenichthyes marmoratus: Cabezon–The Race Rocks Taxonomy

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Scorpaenichthyes marmoratus

cabezonCabezon are normally benthic or bottom-dwellers, living among rocks and seaweeds in tide pools. Sometimes they live just below the water’s surface among the marine plants. Their coloration allows them to remain well camouflaged. Their habitat is most likely rocky, sandy and muddy bottoms, living in areas with a depth range of 0 to 200 meters. Moreover, young cabezon feed on small crustaceans like amphipods, shrimp, and crabs. The adults feed on crustaceans, marine worms and mollusks, including clams and abalone. They can swallow a whole abalone and later regurgitate the indigestible shell; therefore, their tropic level is that of a secondary carnivore. In addition, the limiting factors that will affect the development and growth of this population in a certain habitat will be the presence of enough light, temperature and the availability of food and living space.

Domain Eukarya
Kingdom Animalia
Phylum Chordata
Sub-phylum Vertebrata
Class Actinopterygii
Order Scorpaeniformes
Family Cottidae
Genus Scorpaenichthyes
Species marmoratus
Common Name: Cabezon, Scorpion Fish

The cabezon ( literally big head in Spanish ) is a benthic fish that lives among the kelp holdfasts and rocky areas, usually very close to the bottom. It is often so confident of its camouflage that it will not move when approached by divers. Note the multi colored eye. These fish will lunge at almost anything that moves on the bottom. Dissections of their stomachs reveal amphipods and small crabs, pieces of kelp (and even rocks they have grabbed when foraging for other invertebrates.)

Their maximum length and weight are 99.0 centimeters and 14.0 Kilograms respectively. This organism can be seen in the Eastern Pacific, which covers the areas from Southeastern Alaska to Punta Abrejos, in Central Baja California, Mexico. Race Rocks is located in the centre of this range. In this map we can see the range of this fish.

mapReference The National Biological Information Infrastructure (NBII) BioBot
http://www.elasmodiver.com/BCMarinelife/BCML%20Chordata.htm

 

https://www.racerocks.ca/category/species/class-actinopterygii/
Other Members of the Class Actinopterygii 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.

 

October,2009 : Original text by Diomedes Saldana Greco

Rockfish Conservation Areas-19 and 20 Bentinck Island and Race Rocks

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This is reproduced from the DFO page –the BC Sports Fishing Guide-Tidal Water Fishing Area

Bentinck Island – Chart 3461

19_20cover_RCA_inset_RaceBentinckThose waters of Eemdyk Passage in Subarea 20-5 that lie westerly of the meridian passing through 123°32.450’ west longitude and northerly of a line:

from 48°18.692’N 123°33.486’W
to 48°18.640’N 123°32.916’W

Race Rocks – Chart 3461

Those waters of Subareas 19-3 and 20-5 that lie inside the 40 metre contour line surrounding Great Race Rock and Rosedale Rock as shown on Chart No. 3461, published by the Canadian Hydrographic Service of the Department. Continue reading →

Pholis clemensi: Longfin gunnel–Race Rocks Taxonomy Index

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pholisclemensi

Pholis clemensi image by Ryan Murphy

Actinopterygii (ray-finned fishes)
Perciformes (Perch-likes)
Pholidae (Gunnels)
Etymology: Pholis: Greek, pholis, -idos = scale (Ref. 45335);
clemensi: Named after Dr. W.A. Clemens, Canadian zoologist and educator.

See all posts tagged “fish”

This file is provided as part of a collaborative effort by the students, faculty, volunteers and staff of Lester B. Pearson College– Oct 2010 , by Ryan Murphy

Rock greenling sighted by divers

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‘I was really excited to see a Rock Greenling on one of the dives today. The students and I were making a wide counter-clockwise drift dive around Great Race Rock and in the surf-grass bed on the W side of the island a beautiful Rock Greenling was spotted. It was a very curious fish, leaving its position to check out each diver individually before returning to the grass.’, ‘Ryan’, ’13:11:06 ,