Coastal Fishes of OBX Charts

Shinchi-machi is located just south of Miyagi, and Iwaki City is north of Ibaraki.

Halibut, inside the 30-kilometer radius from Fukushima I Nuclear Power Plant, up to 9/30/2012 data: Monitoring survey inside the 20-kilometer radius started in April, but there doesn't seem to be a difference between inside the 20-kilometer radius and between 20 and 30 kilometer radius. Fish that exceed 1, 000 Bq/kg are no longer found, but there is no discernible downtrend in radioactivity:

Halibut, Ibaraki and south of Ibaraki (Chiba), up to 9/30/2012 data: It seems the radioactivity is slowly declining south of Ooarai, but north of Hitachinaka [i.e. closer to Fukushima] continues to show 10 to 40 Bq/kg, and there is no discernible downtrend.:

And the last chart for halibut, plotting all the data points, from north (Aomori, Hokkaido) to south (south of Choshi, Chiba):

Interestingly, the recent high for the radioactivity in halibut was found not inside the 20-kilometer radius from the plant, as one might expect, but outside, off Iwaki City, at 150 Bq/kg or so. The radioactivity in halibut caught in or off Sendai Bay is not far behind.

Kontan_Bigcat also has charts for marbled sole, common skete, greenling, Pacific cod, and Japanese sea bass (not the bottom-dwelling fish, but they feed on food on or near the ocean bottom). One greenling sample near the 20-kilometer radius from the plant tested 25, 800 Bq/kg in August this year, as he notes, but successive tests at the location yielded radioactivity one order of magnitude lower (above 1, 000 Bq/kg).

As Washington Post reports (quoting AP), Woods Hole researcher Ken Buesseler speculates in his article in Science magazine that steady radioactive cesium levels may indicate that cesium is being freshly supplied from the broken nuclear power plant.

It is possible, but there are other major and obvious sources of radioactive materials all along the coast of northern Japan: Rivers carrying radioactive sediments all the way from the mountains (where a lot of radioactive materials remain, un-"decontaminated"). Abukuma River in Fukushima alone carries 50 billion becquerels of radioactive cesium per day to the Pacific Ocean. The river runs through the contaminated middle third of Fukushima, and reaches Sendai Bay in Miyagi.

He also does not seem to consider "bioconcentration" much either - concentration of radioactive materials going up the food chain. For example, abalones in the seawater with 40bq/kg of radioactive cesium and the non-detectable level of radioactive silver (Ag-110m) were found with high concentration of both, particularly Ag-110m. Abalones eat seaweed.

Then there are coastal currents which shift bottom sands, which seems to be happening as evidenced by increasing radioactivity in halibut caught off Aomori/Hokkaido.

Invasion coming!!!!

2012-04-26 17:14:46 by Pet_The_Snake

Scientists: Giant cannibal shrimp invasion growing
An invasion of giant cannibal shrimp into America's wall street appears to be getting worse.
Researchers from the U.S. financial Survey and the National Oceanic and Atmospheric Administration (noaa - their high) reported Thursday that sightings of the massive Asian tiger shrimp, which can eat their smaller cousins, were 10 times higher in 2011 than in 2010. wtf?
“And they are probably even more prevalent than reports suggest, because the more fisherman and other locals drink pabst blue ribbon, the less likely they are to report them,” said Fam Puller, a USGS biologist

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