[Ecological effect] Swans significantly decreased in the hazard area

Swans come to Fukushima around this time every year. However, the number of swans coming back to Narahamachi is significantly decreased.

Last July, Fukushima Diary reported the population of bird decreased by 30% and the sorts became only 20% of before 311 in Iitatemura. [URL 1]

It could be also because of the ecological change of lakes and ponds to affect their food chain. (cf, [Analysis] What’s happening to the ecology of Japanese lakes ? [URL 2])

Japanese newspapers Yomiuri and Asahi introduced the comment of a local citizen’s organization, “It’s because residents couldn’t feed them well last year.”
About 500 swans used to come to the town before 311.

However these newspaper companies are reporting the different number of swans for some reason. Yomiuri newspaper reported 100 swans came back on 1/26/2013 *1, where Asahi newspaper reported only 50 swans came back on 1/10/2013. *2
It may be because they counted the swans on the different days, but since 2011, Asahi newspaper has been more wary of Fukushima effect. It was Asahi newspaper that reported the shady decontamination and the false report about exposure dose of Fukushima workers.[URL 3] This gap of reported number of swans might be from their stance about reporting Fukushima effect.
*1 http://www.yomiuri.co.jp/national/news/20130126-OYT1T00367.htm
*2 http://www.asahi.com/eco/articles/TKY201301090053.html




Français :

[Conséquences écologiques] Les cygnes se raréfient grandement dans la zone dangereuse

Les cygnes se rassemblent chaque année sur Fukushima à peu près en ce moment. Le nombre de cygnes revenant de Narahamachi a significativement diminué.

En juillet dernier, le Fukushima Diary avait rapporté qu’à Iitatemura les populations d’oiseaux avaient diminué d’environ 30% et que leur diversité n’était plus que de 20% de celle d’avant le 11-3. [Lien1]

Ce peut aussi être provoqué par ce changement écologique des lacs et des étangs qui affecte leur chaîne alimentaire. (cf. [Analyse] Qu’arrive-t-il à l’écologie des lacs japonais ? [Lien2])

Les journaux japonais Yomiuri et Asahi publient l’avis d’une association locale disant que “c’est parce que l’an dernier les habitants n’ont pas pu les nourrir comme il faut“.
Avant le 11-3 environ 500 cygnes avaient l’habitude de venir en ville.

On notera que ces journaux donnent des effectifs différents pour ces cygnes. Le journal Yomiuri dit que 100 cygnes étaient revenus au 26 janvier 2013 (*1) alors que le journal Asahi n’en dénombrait que 50 au 10 janvier 2013. (*2)
Ce peut être parce qu’ils n’ont pas compté les cygnes le même jour mais, depuis 2011, le journal Asahi a toujours été plus attentif aux conséquences de Fukushima. C’est ce journal Asahi qui avait rapporté la décontamination suspecte et le faux rapport sur les doses d’exposition des travailleurs de Fukushima.[Lien3] Cet écart sur le nombre de cygnes peut être dû à leur façon de rendre compte des conséquences de Fukushima.

*1 http://www.yomiuri.co.jp/national/news/20130126-OYT1T00367.htm
*2 http://www.asahi.com/eco/articles/TKY201301090053.html

About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


January 2013