Thursday, March 2, 2017

Oh snow!

The snow crab population in the eastern Bering Sea is experiencing a decline which affected the 2016/2017 fishery, which I reported here. That fishery is just now finishing up with the first boat loaded and headed home (shared by the Alaska Bering Sea Crabbers). How that fishery performed and how that population is affected will have cascading impacts on market prices, new snow crab products (like McDonald's snow crab sandwich), next year's population health, and next year's fishery catch limits.

That's the Alaska side. What about Canada's snow crab fishery? They're probably doing good, eh? I mean, they have this guy:

(source: New York Times)

Sadly, even Justin Trudeau can't help the snow crabs. The Department of Fisheries and Oceans (DFO) just released their snow crab stock assessment which shows that the biomass of legal crab for the Newfoundland and Labrador fishery has declined by 80% since 2013.


You guys. That's so bad. As Darrell Mullowney of the DFO says, "It's not a good news story." Or as Keith Sullivan of the Fish, Food and Allied Workers Union says, "It's terrible, terrible news for people in the industry." Yeah man, terrible for the industry AND terrible for the crabs and their ecosystem. Remember, humans aren't the only ones who like to eat snow crabs. Atlantic cods do too, and they haven't really been living high on the hog anyway (what with its collapse in 1992).

Atlantic cod Gadus morhua (source: Joachim S. Müller)

So it seems that our Bering Sea opies aren't the only ones facing declines. Again, Mullowney commented on the global scale of depressed snow crab stocks, particularly in their southern most areas: "The magnitude of this in terms of socioeconomics I can't really quantify." We'll have to wait and see.

Tuesday, February 21, 2017

This is testing my resolve, y'all



1. YAY snow crab!






Friday, October 7, 2016

Big Trouble in Little Bering Sea

Oh man, you guys. This is a doozy.

I posted a brief Tanner crab (Chionoecetes bairdi) update from Alaska Department of Fish and Game yesterday on Facebook. TL;DR - the Bering Sea fishery for bairdis is closed for the 2016/2017 season.

The bairdi fishery in the Bering Sea has had a rocky past with openings and closures fluctuating throughout the years, but it was starting to look good again even as recently as 2015! The fishery was closed from 1997 - 2004, open fully 2006 - 2009, closed again from 2010 - 2013, then open fully until 2015 with high catches and high vessel participation (112 vessels in the 2015/2016 season compared to 32 in 2013/2014).

from the 2016 crab SAFE data

You can read all about the fishery in the latest Bering Sea/Aleutian Islands stock assessment and fishery management report (in nerd lingo - the crab SAFE), which is put out by the North Pacific Fishery Management Council. Here's a link to the Crab Plan Team with all their fun reports, and this link will send you to the current Council meeting (happening now) where you can find the 2016 crab SAFE in the Agenda. It's listed under "C. Major Issues/Final Action Items" as the first item.

OK, so that's bairdi, but you all know I really love me some opies. How are they doing?

Not good. ADF&G announced that Bering Sea snow crab will be open this year (October 15th, as usual) but with the lowest total allowable catch (TAC) in 45 years. The low TAC, at 21.57 million pounds, is  nearly HALF of what it was last year (40.57 million pounds)! Why? Because surveys of the crabs have shown a decline in the number of mature males out there (who we like to eat) AND mature females out there (who make the babies).

from the 2016 crab SAFE data

This low baby-makin' biomass means potentially fewer adults in the future. That's why management has to be so conservative to allow for the crabs to do their business and replenish the stock. But for the moment it also means low catches and A LOT less money for our crab fishermen, processors, and on down the line. The other thing fishermen have to worry about is any accidental retention of bairdis since that fishery is closed, making these crab-cousins prohibited.

opilio up top, bairdi on bottom

Good luck, crabs!

Wednesday, April 6, 2016

Shrimp Publication!


spot shrimp and coonstripe shrimp embryos


pink shrimp embryos



Wednesday, February 10, 2016

Lobster rolls are a waste of time, money, and lobsters


leave the lobster roll, take the fried clams
(does anyone else wish they were cannoli?)
(photo source: yelp)




Mmmm, I can still smell the ground pollock from here!


(photo from Honestly Yum)

Thursday, December 3, 2015

Caution for California crab lovers

A nasty little algae has been blooming like crazy lately (thanks, global warming!) and it's having some pretty serious consequences for Dungeness-loving consumers in California. The diatom, Pseudo-nitzschia sp., produces domoic acid, and at the high productivity rate it's experiencing because of warmer ocean conditions, the domoic acid is startin' trouble. When consumed at high concentrations, domoic acid can cause seizures, comas, and death! Yikes! It also causes short-term memory loss, so when people (or animals) get it from eating shellfish, it's known as Amnesic Shellfish Poisoning. (Remember learning about Paralytic Shellfish Poisoning here?) The domoic acid bioaccumulates in filter feeders like clams, mussels, and crabs (!!!) who just want to munch on some phytoplankton.

"Lay off me, I'm starving!" - Metacarcinus magister (PC Brian Feulner)

Speaking of crabs, California has closed its recreational and commercial crab seasons for both Dungeness and rock crabs because of this domoic acid contamination! This closure not only affects consumers (in a good way, really, because DEATH), but also the fishermen themselves who rely on these crabs for their livelihood. So it's kinda a lose-lose situation at the moment: fishermen lose money and their ability to pay their bills-bills-bills, or consumers run the risk of short-term memory loss, paralysis, and death.

How realistic is this concern? Well, dead sea otters have been reported with domoic acid in their systems, several large whales have washed up dead and the toxic diatom is a suspect (PS, the dog in the 3rd picture is adorable!), and even this little sea lion pup was poisoned in utero:

little Danzig in recovery, lucky guy! (PC Paul Chinn, The Chronicle)

Cuteness aside, it's an issue that needs to be monitored, and all my dungie-loving people out there should remain cautious about where your crab were caught and how they were prepared!

Friday, July 24, 2015

Wearable crabs

OK, you know I love me some good crab swag (see exhibit A (for 'awesome', and 'Amelia')), but a new company is taking crab swag up a notch! Tidal Vision is going to take the old carapaces of snow crabs and turn them into shirts and other clothes! Doesn't that sound amazing?!? And strange, potentially smelly, and likely scratchy?

not that Maru minds...

Nope, don't worry: Tidal Vision assures that the fabric feels similar to cotton. And a bonus is that it has natural anti-bacterial and -microbial properties! Because of those properties, they're marketing the shirts as performance wear called "Chitoskin". Brilliant!

So what is chitosan, you're asking? Chitosan comes from chitin, which is what crustacean shells are made of. By treating chitin with sodium hydroxide (NaOH aka lye), you get chitosan! Those of you who took high school chemistry may remember using sodium hydroxide to increase the pH of an acidic solution. Mmmm, titrations!

ANYWAY, Tidal Vision is using snow crab shells, as well as salmon skins for wallets and belts, to reduce waste from the fisheries. That's something I can definitely wear proudly!

(from Tidal Vision)

OH MY GOSH, by the way, I guess the whole cat-in-a-crab-hat thing happens A LOT in Japan! I will post photos of my cats if I get them wearing Dungies!