Whidbey Island Critters

Fish & Invertebrate sightings and descriptions, hosted by resident NWDC ID expert Janna Nichols (nwscubamom).
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LCF
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Re: Whidbey Island Critters

Postby LCF » Thu Jan 26, 2012 11:12 am

First -- I wonder if that's true of all nudibranchs, that they lay eggs and die; I've never really read anything about their life cycles, life expectancies, or anything of that sort.

Second, although I commonly dive Edmonds, which has one of the biggest populations of the biggest lings you could hope to see, I have never been attacked by a male guarding eggs. Most of the time, they just sit there and look at me; occasionally they'll raise their fins and try to look impressive. Even at Sund Rock, where one got very agitated, he made no feints at the divers. Cabbies, on the other hand . . . oh, my! I've been whacked on the head and had my dry suit bitten and DRAGGED by a cabezon not more than a foot long. Those guys are the Jack Russell Terriers of the fish world :)
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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Thu Jan 26, 2012 9:46 am

Lynne, I hope you can see it now ...
I have been looking for Lingcod egg masses on every dive since their usual annual appearance
which in the past started around the end of December. I know they have been reported from other
locales in the Sound, but for some reason, the Whidbey Lings delayed laying eggs this season.
Finally, January 23, I found seven of them. I am sure some of them might be there well before then,
but the snow episode made access to Possession Point impossible. All I know, during my last visit
there before snow, on January 10, the male Lingcod were just guarding "eggless" territories.
Numbers on egg masses given in the order I found them...
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LCF
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Re: Whidbey Island Critters

Postby LCF » Tue Jan 24, 2012 4:12 pm

I don't know what's happened, but suddenly, none of the photos in the last post are rendering for me here.
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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Tue Jan 24, 2012 11:30 am

Back in fall quite a number of Red dendronotid slugs show up at Possession Fingers.
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Every once a while I check on them down in 80 feet.
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Now they started to lay eggs, somewhere I read that signals the end of them :(
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LCF
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Re: Whidbey Island Critters

Postby LCF » Mon Jan 23, 2012 4:14 pm

Wow, Jan -- that was some mighty still water!
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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Mon Jan 23, 2012 3:34 pm

How to have fun in the first 12 inches of water ... No decompression required :)
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Re: Whidbey Island Critters

Postby RoxnDox » Mon Jan 23, 2012 12:17 pm

LCF wrote:I think those guys get lumped into my ID class of "small silver fish".


Sounds like my birdwatching category of "LGBs" (Little Grey Birdz) :) Jan and Janna and all the folks who can identify these critters impress me every day I read these posts... Not to mention Jan's photo skills!


Jim
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Re: Whidbey Island Critters

Postby dwashbur » Sun Jan 22, 2012 8:56 pm

LCF wrote:I think those guys get lumped into my ID class of "small silver fish".

They're on my ID list under "Am I ever gonna see one of these???"
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LCF
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Re: Whidbey Island Critters

Postby LCF » Sun Jan 22, 2012 8:42 pm

I think those guys get lumped into my ID class of "small silver fish".
"Sometimes, when your world is going sideways, the second best thing to everything working out right, is knowing you are loved..." ljjames

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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Sun Jan 22, 2012 6:36 pm

Another encounter with a stickleback.
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Re: Whidbey Island Critters

Postby Jan K » Sat Jan 21, 2012 10:49 pm

After all that snow and freeze, I was ready for a dive. Because of the forecast of wind, rain,
dogs and cats etc. , I choose the protected waters of Lagoon Point to get my fix. And it gave
me opportunity to check on he colony of invasive Ciona savignyi tunicates some of which made it
to the paper recently published by the University of Washington. It was the Northwest Dive Club
which connected the scientist with the lowly diver (me) and in October 2010 I scooped some of the
invasive rascals here in Lagoon Point into a bucket to be cut, dissected and studied and properly
disposed off :)
NWDC is mentioned in the paper, so I cut and paste it onto my Ciona pictures. So as you see, they
are still here, but they are not taking over. Yet.
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Re: Whidbey Island Critters

Postby oldsalt » Fri Jan 20, 2012 11:02 am

When I was doing my studies, some researchers claimed there was a nocturnal/diurnal effect. Closed during the day and open at night. I could not find such a relationship. I dived at different times of day and observed whether they were open/closed, and graphed them against daylight and tide seeking a correlation, but couldnt find one. I did notice the cyclical opening/closing in the aquarium, but that could be explained by repsonse to different frequencies of light. We see through the glass darkly.
-Curt
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LCF
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Re: Whidbey Island Critters

Postby LCF » Thu Jan 19, 2012 10:13 pm

I've wondered about some longer-term closures . . . the anemones at the I-beams in Cove 2 seemed to spend most of their time closed for several months (at least, no matter what time of day I dove, they were always closed, and actually looked kind of spindly and sick). Then all of a sudden, they were open again, and now they seem to be back to normal.

It's an interesting question, I think.
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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Thu Jan 19, 2012 9:23 pm

Curt, you are absolutely right. Professor Daphne G. Fautin did include it in her explanation :
"This is not true of the anemones you seen when you dive, of course, but a reason intertidal anemones close is to retain water while the tide is out."
I did not include that in my pages since I was really interested in the anemones once I put my snorkel away :)

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Re: Whidbey Island Critters

Postby oldsalt » Thu Jan 19, 2012 8:59 pm

Closing also conserves water when the anenome is exposed by the ebbing tide. You'll notice that all of them out of the water are closed when you are tidepooling. I found that some of them are sensitive to infra-red light, which is primarily absorbed in the upper few centimeters of water. This infra-red sensitivity also explained some of the cyclical closing observed in aquariasts. That was part of my master's research.
-Curt
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LCF
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Re: Whidbey Island Critters

Postby LCF » Thu Jan 19, 2012 10:05 am

Thank you, Jan, for asking a question that's puzzled me for years!

And thank you for the beautiful anemone shots -- I keep trying to get a good portrait of them, because they are SO pretty, but it really takes the right equipment and conditions to do it.
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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Thu Jan 19, 2012 9:43 am

Why are anemones sometimes open and sometimes closed ?
I could understand the close after anemone swallowed something, but it doesn't
explain hundreds of them doing it same time. So I contacted an expert:
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Re: Whidbey Island Critters

Postby bucknaked » Mon Jan 16, 2012 10:45 pm

You always have awsome posts. I really enjoy reading them thanks :notworthy:

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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Mon Jan 16, 2012 9:19 am

Another invasive tunicate ... :eek:
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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Sun Jan 15, 2012 11:54 am

While cold and gray topside, colors found down below ...
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LCF
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Re: Whidbey Island Critters

Postby LCF » Fri Jan 13, 2012 10:14 pm

Oh, Jan, what a dive! I'd be happy with just one of those sculpins, and the octo in the shell was just the icing on the cake!
"Sometimes, when your world is going sideways, the second best thing to everything working out right, is knowing you are loved..." ljjames

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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Fri Jan 13, 2012 7:18 pm

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Jan K
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Re: Whidbey Island Critters

Postby Jan K » Thu Jan 12, 2012 2:47 pm

Enough of stretching, now relax under the parasol :)
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Tom Nic
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Re: Whidbey Island Critters

Postby Tom Nic » Wed Jan 11, 2012 2:55 pm

Simply awesome!
More Pics Than You Have Time To Look AT
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Norris
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Re: Whidbey Island Critters

Postby Norris » Wed Jan 11, 2012 1:59 pm

Jan K wrote:Lynne, watching hermit crabs and their antics is fun, I wish we had land hermits here,
I would stay warmer...
I am still trying to figure out why some of the sea stars go through all these contortions ..


Removed picture from quote, like we need all these to load up twice?!?


LOVE the yoga reference Jan!!!

You never cease to entertain
Last edited by Norris on Wed Jan 11, 2012 2:58 pm, edited 1 time in total.
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