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Alaska snow crab season canceled after disappearance of an estimated 1B crabs

cbsnews.com

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Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#61

I don't like how they keep blaming climate change, even though that doesn't seem to be what happened here. We just had one of the best seasons for crab fishing; does CBS expect us to think climate change in the last year ruined this season? Much more likely is disease, some new techniques in crab fishing that over harvested the sea, or random deviation.

No post body was provided.

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#62

I don't like how they keep blaming climate change, even though that doesn't seem to be what happened here. We just had one of the best seasons for crab fishing; does CBS expect us to think climate change in the last year ruined this season? Much more likely is disease, some new techniques in crab fishing that over harvested the sea, or random deviation.

"Larger statistical variance caused by climate change results in outlier event that kills 90% of crab" isn't a great headline. What do you need to believe that climate change is a factor in this event? A sample size of 1 million? A deviation of 5 sigma?

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#63
post #18

Earlier quoted context omitted.

What about farmed trout? https://www.clearsprings.com

According to clearsprings >Farmed seafood, in general, is a sustainable option, requiring far less feed per pound compared to other farmed sources of protein like beef, pork, and chicken. That is one advantage if true but that just means more sustainable than beef, pork, and chicken. Is there a condition that would prevent their farming? Like the accessibility of the feed?

> Conventional operations use large amounts of fishmeal and fish oil (and hence more wild fish) in their feed. All rainbow trout on the U.S. market is farmed-raised in the U.S., where farming operations are held to strict environmental standards. Improvements to feed have enabled less wild fish to be used.

https://seafood.edf.org/trout

So I guess they harvest wild fish to feed the farmed fish?

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#64

Earlier quoted context omitted.

I'm eating as much delicious sushi grade tuna I can before it's gone.

You and everybody else. That's the problem.

There are many ways to solve the specific problem of overfishing, mostly to set aside zones where fishing is not allowed so the population can recover. This is at the level of government and states, having little to do with anything within my power.

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#66
post #21
post #5

The overfished. Simple as that. Snow crabs have been becoming smaller and smaller because the biggest ones were not living that long anymore. It happened to cod fisheries in eastern Canada and it is happening everywhere until it's too late.

This likely isn't true due to the scale of disappearance of crabs. *90% of the are gone - in only 2 years* That's not just overfishing, something much worse has happened. The cod overfishing was also a very unfortunate tale, but they saw the signs and tracked them catching fire and burning to the ground the entire time, just didn't do anything about it. Here, AFAIK, they were bewildered at how this occured.

Other sources I've seen are blaming the dramatic heat during the summer of 2019. It "scrambled the broader marine ecosystem" causing die-offs and migrations for many species of fish. Snow Crabs are primarily deep water scavengers so they had plenty of food that year, but have struggled since.

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#67

I am willing to bet it is illegal fishing boats from countries I dare not to list for being downvoted. It is well known that some countries list a few hundred boats but in reality have fleets of tens of thousands of boats that operate under the radar. They over fish and destroy entire ecosystems and no one is doing anything about it.

Do you have any evidence to back this up, or is this just xenophobic speculation? China’s encroachment on sovereign waters for fishing is one thing when it’s against South American countries with small navies; it’s another thing entirely when it’s the US. I doubt they’re behind this.

Is it xenophobic when your own comment cites that exact behavior?

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#68
post #65

"Disappearance" is a weird way to say overfishing. It's not like someone cast a spell or something.

They could have died from the crab equivalent of a deadly heatwave. I agree fishing is the most likely reason but I can think of others.

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#69
post #4

Something similar happened to the cod fishing industry in Newfoundland and other parts of eastern Canada 30 years ago. The reason: overfishing, due in large part to technological advances. Here's what happened: Canada and NAFO continued to overestimate the abundance of cod in the Atlantic Ocean and therefore continued to set dangerously high [Total Allowable Catches]. This was in large part due to the widespread prac…

Looks like this article was written in 2008. I wonder if the population has rebounded in the last 15 years at all.

Re: Alaska snow crab season canceled after disappearance of an estimated 1B crabs

#70
post #40
post #5

The overfished. Simple as that. Snow crabs have been becoming smaller and smaller because the biggest ones were not living that long anymore. It happened to cod fisheries in eastern Canada and it is happening everywhere until it's too late.

No, it's not that simple. The snow crab fishery is pretty highly regulated and considered to be sustainably harvested (by NOAA, the Monterey Bay Aquarium, others). As mentioned in an another article [1] from August on the recent disappearance, there were large numbers of juveniles in 2018 and 2019. Something else is going on. Overfishing certainly may play a role, but something else is likely the primary factor. 1. h…

> considered to be sustainably harvested (by NOAA, the Monterey Bay Aquarium, others)

maybe they considered incorrectly, based on historical data that doesn't reflect recent conditions

also possibly that regulations are being flaunted by bad actors

it could seem improbable that either of those would lead to a sudden catastrophic decline, but many systems do experience a point where what had been a linear decline suddenly craters in a non-linear fashion

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