Tuesday, December 11, 2007

The Chesapeake oyster tragedy

The fabled watermen of the Chesapeake Bay have just finished digging their own grave, and they're taking the oysters with them.

This is a sad story that didn't have to be this way. Oysters used to be so numerous that they cleaned the Bay every 3 days, and oyster reefs were a hazard to navigation. But overfishing has removed most of the oysters and destroyed the oyster shell reefs necessary to provide a good home for young oysters.

The oyster catch is now down around 1/1000 of the rich plunder of a century ago, and pessimists outnumber optimists. Oytster farming, once a heresy, is now the most likely hope for an oyster revival.

It's enough to make an oyster lover cry. Where did the oyster-loving watermen go so wrong? Why did the government allow it to happen? Why were we the people asleep at the wheel?

hat tip: Shifting Baselines

Monday, December 10, 2007

Better fishing by fishing less

How can a fisherman make more money? By fishing less. This one has blogfish written all over it.

A new study says fishing is better when there are more fish in the water. No big surprise there, but I guess it's a big deal when this common sense idea is dressed up with lots of equations.

Is it going to matter? Will this study lead to better fishing policies? I doubt it, since we've known for a long time that overfishing is bad and yet it still happens. It is an advance to show scientifically that less fishing is more profitable for fishermen. But it won't solve most of our problems. Why?

Because most of our fishing problems are fights over who gets the fish. Until that's settled, few fishermen will quit racing to catch fish.

I don't mean to be cynical and pick on good research. It is a great advance to show conclusively that less fishing is better fishing. And I hope that this research is implemented by fishery managers and politicians. Maybe the scientists involved will help with this messy task?

Tuesday, December 04, 2007

Blue crab collapse in Chesapeake bay

Another sad story, blue crabs are disappearing from Chesapeake Bay.

Why? We're catching too many, at the same time as pollution makes it difficult for blue crabs. Watermen who catch crabs stubbornly persist in catching too many crabs, even though they're killing their own livelihood.

Blogfish has been here before, complaining about killing too many blue crabs. Now the overfishing has come home to roost.

Talk about killing the goose that laid the golden egg.

Monday, December 03, 2007

Carnival of the blue 7

Enjoy the best of ocean blogging at Carnival of the Blue 7 at Natural Patriot.

There are some new entrants, so even if you've looked at the Carnival before, try this month's entry and find some new ocean bloggers.

Mini nuclear power plants

There's a new nuclear power option for producing low CO2 electricity, mini nuke plants. Oregon State University scientists propose baby nukes in the relative safety of Corvallis, Oregon.

This is not the only place where baby nukes are being talked up as a solution. What do you think? Should we have these mini nuclear reactors "dotting the countryside?"