Seaweed Research Journal

Seaweed Research Journal

Jan 31, 2013

Nori Cultivation in Tokyo Bay(富津岬沖の海苔養殖場とアマモ場)

Before landing at Tokyo Haneda airport, airplane sometimes passes through over Chiba Prefecture, near Tokyo. So, especially in Winter season, I always reserve a window seat of the right side to see Nori (Porphyra / Pyropia) cultivation that is conducted at off the coast of Chiba Prefecture in Tokyo Bay. However, if you want to see the beautiful Mt Fuji, I recommend the left side seat.

この時期,天気のよい日に東京出張すると富士山がよく見えます。ほとんどの人はそちらを眺めますが,私は右側の座席を指定し,海苔養殖場を眺めます。

Nori cultivation filed at off Futtsu Cape. I could find the numerous rectangle nets on the sea.
富津岬南岸の海苔養殖場。木更津沖は電子機器使用禁止時間帯で撮影できませんでした。

Zostera marina bed at the Futtsu Cape. 
富津岬北側のアマモ場。広いですね。

Jan 30, 2013

BS study poster session(卒業研究発表会)

Poster session of the BS candidate in the Division of Fisheries Biology and Oceanography was held at Fisheries Department of Kagoshima University. Generally, BS candidates of Japanese national universities are required to conduct own research to get the credit of compulsory subject, "BS Thesis".

鹿児島大学水産学部水産学科水産生物海洋学分野の卒業研究発表会が行われました。

Jan 29, 2013

Pyropia (=Porphyra) tenera survey using Diving-PAM(大学院生がDiving-PAMを使って日本最南端の養殖アサクサノリの調査を実施)

Mr Yuki, MS candidate of the Marine Botany Laboratory, conducted the field survey of photosynthetic activity at the aquaculture field of Pyropia (= Porphyra) tenera using the Diving-PAM. Diving-PAM is known to be a powerful tool to elucidate the photosynthetic characteristics at natural habitat especially in the field of coral and seagrass biology. Although there are some papers of Porphyra using Diving-PAM, I guess that his survey might be the first trial study for Japanese cultured species.

大学院水産学研究科のW邉君がDiving-PAMを使ってアサクサノリの生理状態を現地で調査しました。PAMを使って海苔養殖の生理状態を水中で迅速診断するのはおそらく(たぶん)日本初だと思います。


Jan 22, 2013

Caulerpa salad and drink (Seaweed survey in Krabi Thailand 1)

I will be in Krabi of Thailand this week to conduct the seaweed collection survey with Thai and Belgian scientists. Although detailed reports will be updated after come back home, I uploaded two photos of Caulerpa that were found in the dinner (not underwater, on the dish).
海藻調査でクラビーに来ていますが,夕食の席でKhan先生(カセサート大学)がイワズタの一種をサラダで持ってきてくれました。海ぶどうとは違う種類ですが,こちらの方がさらに美味しいです。


Jan 19, 2013

鹿児島湾における藻場の分布と特性

鹿児島湾の藻場については不定期に調査をしていますが,湾全域で調査した2006年の結果が日本水産学会誌で発表されました。下記サイトよりpdfがダウンロード可能です。鹿児島県水産技術開発センターと鹿児島大学水産学部の水圏植物学研究室の共同研究でした。

田中敏博, 吉満敏, 今吉雄二, 石賀好恵, 寺田竜太
鹿児島湾における藻場の分布と特性 日本水産学会誌 79(1): 20-30

https://www.jstage.jst.go.jp/article/suisan/79/1/79_12-00047/_pdf


Jan 18, 2013

T/S Nippon-Maru(帆船日本丸を見学)

Lab members had an opportunity to visit the T/S Nippon-Maru. This is a famous sailing vessel operated by NIST (National Institute for Sea Training), and is calling at Kagoshima Harbor. Unfortunately, I could not visit there.

http://www.kohkun.go.jp/en/index.html


海藻研の学生が鹿児島港に滞在中の帆船日本丸を見学しました。普段乗っている船とは全く違いますね。

Melosira varians

An owner of a resort hotel in Kirishima Heights, Kagoshima Prefecture, invited me to identify an unknown alga that is occurred in a fresh water pond.

高原の池の藻を調査してほしいと依頼を受け,霧島のとあるところに行ってきました。

Melosira varians
It wasn't a macro-alga. This alga was considered to be a diatom, Melosira varians on the basis of the characteristic morphology and habitat. Indeed, this species is known to be prefer higher pH waters around 8 to 9, and it was almost identical with those of this study site.