Monday, March 14, 2011
A Weekend Escape- Part 2 (The Mound Builders!)
A Weekend Escape- Part 1
At Emiquon National Wildlife Refuge, a shallow, 2,000 acre lake formed at the junction of the Illinois and Spoon Rivers, snow geese often gather in the tens of thousands, accompanied by pelicans, bald eagles, and thousands of other ducks and waterbirds. Interestingly enough, this wildlife magnet hardly existed before the Nature Conservancy purchased it in the year 2000 (none of my old bird books on Illinois mention it). Although the area had historically been a giant wetland, years of intensive farming operations had all but drained the surrounding marshes and confined the the Illinois River to manmade channels. Only in recent years, when the Nature Conservancy removed the drain tiles, planted native flora, and restored the river to its original course, did the wildlife start to come back.
In one nearby Fish and Wildlife Area known as Banner Marsh (a place I would have liked to stop at, but didn't have time), the 4,363 acre property was initially a strip mining operation. This just goes to show you how quickly nature can heal.
Monday, March 7, 2011
The Last of the Bluefin Tuna
It’s been several hours since my last meal, and for some reason, I’m craving a big, juicy, tender filet of fish— preferably halibut or whitefish. Maybe trout? Mahi-mahi? No wait, I got it- A tuna burger! Mmmmmm so delicious.
It disturbs me that I think about these kinds of thing when I should be writing about the depletion of fish stocks, destruction of aquatic ecosystems, and ruthless, unregulated nature of our fishing industry. It certainly proves how strong our hunger instincts are. Sometimes I wonder: If I was stranded on an island with the last breeding pair of dodos, there was no help in sight, and there was nothing else to eat, would I have the will to refrain from eating them?
Anyways, that’s not my point. What I mean to say is that fish are in trouble. Now this is not true for every species, but for large predatory fish like tuna, grouper, and sharks, the situation is dire. Big fish are disappearing at a rate faster than anyone could have imagined. Bluefin Tuna- which are prized on the Japanese sushi market- have declined more than 90% since the 70’s, and are now listed as “critically endangered” by IUCN Red List. It’s really a shame too, because these are such majestic fish. A full-grown adult -bulging with muscle and power- can measure up to 10 feet, weigh more than 300 pounds, and reach speeds up to 50 mph. To think that such magnificent creatures would be slaughtered en masse and reduced to cat food seems pretty revolting to me.
Yet despite warnings of overfishing, Japan and a number of other countries continue to deplete fish populations- from the majestic tuna to rather gross-looking Patagonian Toothfish. With improved, industrial-scale fishing operations, virtually nothing is safe from exploitation. Even the deepest, blackest recesses of the ocean are fished to the extreme. Trawling nets are indiscriminately dragged across the seabed, killing all sorts of untargeted creatures as well as destroying seafloor ecosystems.
Some deep-sea fish like the Orange Roughy (a long-lived member of the Slimehead family) are already starting to suffer from this type of trawling, since they tend to be VERRRRYYYY slow to reproduce. Young roughies take 20-40 years to mature, and if you’ve ever had orange roughy, chances are good that you’re eating a 50-year old fish.
Although many countries now enact quotas on the allowable catch within their waters, a vast majority of fisheries are poorly regulated. With oceans spanning the globe, poaching is easy, and many countries (Japan in particular) tend to ignore limits imposed on fishing.
Although people nowadays may have higher eco-awareness, international cooperation may be better, and people may be finally waking up to the effects of overfishing, a tragedy of the commons seems to be playing itself out. According to a 2009 prediction, Bluefin Tuna may go extinct within 3 years. Unless people act now, we’ll simply deplete the large fish, move onto smaller ones, and repeat the cycle until there’s nothing left but plankton.<----- :(