Search Results 1-20 of 353

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Effects of water temperature, salinity, and irradiance on growth and toxin profiles of the dinoflagellate Alexandrium pacificum isolated from Hakodate and Funka Bays, Hokkaido, Japan [in Japanese]

Natsuike Masafumi , Kanamori Makoto , Sugawara Akira , Sakamoto Setsuko

… species complex Group IV) and the associated toxin contamination of cultured scallops was reported in Funka Bay during autumn in 1988. … species complex collected in Hakodate and Funka Bays in southern Hokkaido by microscopy. … unialgal strains isolated from the Hakodate and Funka Bays were examined to evaluate the possible risks of A. …

Bulletin of the Plankton Society of Japan 68(1), 1-9, 2021

J-STAGE
2

Estimating Pot Mesh Selectivity for Corn Stripe Shrimp Pandalus hypsinotus by Water Tank Experiment [in Japanese]

Kozaki Kenta , Fujimori Yasuzumi , Yamamoto Jun , Tomiyasu Makoto , Arima Daichi , Sawamura Masayuki , Shimizu Susumu

… in Funka-Bay of Hokkaido has been estimated to be medium level in recent years; …

Journal of Fisheries Engineering 57(3), 91-97, 2021

J-STAGE
3

Feeding habits of larval yellow goosefish Lophius litulon around the Shimokita Peninsula and in Funka Bay, Japan

GAO Weifeng , NAKAYA Mitsuhiro , TAKATSU Tetsuya , TAKEYA Yuhei , NORO Kyosei

水産増殖 = Aquaculture science 68(3), 275-277, 2020-09
4

Time-series observation of redox condition and nutrients in marine sediments of Funka Bay, Hokkaido [in Japanese]

Ito Shun , Meng Fanxing , Ooki Atsushi

北海道噴火湾における底質の酸化還元環境と栄養塩等の化学成分との関係性を明らかにするため、2019年2月から12月に時系列観測(採水及び採泥)を行った。噴火湾の湾奥部St.30の堆積物表面の酸化還元電位は底層水中の溶存酸素濃度と一致する季節変化を示した。また硫化物の分析から、堆積物中で硫酸還元が生じていたことが示された。直上水及び間隙水中の溶存無機窒素とリン酸の比は小さく、堆積物中 …

Abstracts of Annual Meeting of the Geochemical Society of Japan 67(0), 39, 2020

J-STAGE
5

A review of the resent studies of fisheries and taxonomy on the Japanese holothurians [in Japanese]

YAMANA Yusuke

… In their natural habitat, juveniles grew up well and were uniform in their size within the same year-group, revealed by the cohort study of juvenile sea cucumber from an intertidal habitat in the Hirao Bay, Yamaguchi. … The artificially-reared seedlings released in an artificial habitat also grew up well and uniform in their size within the same year-group, revealed in the Funka Bay, Hokkaido. …

Japanese Journal of Benthology 75(0), 6-18, 2020

J-STAGE
6

Isoprene production in seawater of Funka Bay, Hokkaido, Japan

Ooki Atsushi , Shida Ryuta , Otsu Masashi , Onishi Hiroji , Kobayashi Naoto , Iida Takahiro , Nomura Daiki , Suzuki Kota , Yamaoka Hideyoshi , Takatsu Tetsuya

Journal of oceanography 75(6), 485-501, 2019-12

IR
7

Annual and seasonal changes in the assemblage of planktonic copepods and appendicularians in Funka Bay before and after intrusion of Coastal Oyashio Water

Yamaoka Hideyoshi , Takatsu Tetsuya , Suzuki Kota , Kobayashi Naoto , Ooki Atsushi , Nakaya Mitsuhiro

Fisheries science 85(6), 1077-1087, 2019-11
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Growth of the brittle star Ophiura sarsii sarsii in Funka Bay, Hokkaido, Japan

Orino Kazuki , Ishigane Kosuke , Suzuki Kota , Izumiura Hiroki , Nakaya Mitsuhiro , Takatsu Tetsuya

Fisheries science 85(4), 705-716, 2019-07
9

Growth of the brittle star Ophiura sarsii sarsii in Funka Bay, Hokkaido, Japan

Orino Kazuki , Ishigane Kosuke , Suzuki Kota , Izumiura Hiroki , Nakaya Mitsuhiro , Takatsu Tetsuya

Fisheries Science (85), 705-716, 2019-06-11

IR
10

Numerical experiments of surface clockwise circulation in Funka Bay during early summer [in Japanese]

Kobayashi Naoto , Isoda Yutaka , Horio Kazuki

初夏の噴火湾で観測される最も顕著な物理現象は，表層の時計回り水平循環流システムである。本研究では典型的な成層期を想定し，（1）河川供給に伴う淡水化，（2）津軽Gyre 水の密度流的流入，（3）海面熱供給の3 つを強制力とした数値モデル実験を行い，この循環流の形成過程を調べた。その結果，この循環流の励起に寄与する基本的な物理的要因は，海面加熱強制により生じる「地形性貯熱効果」である …

Oceanography in Japan 28(4-5-6), 51-74, 2019

J-STAGE
11

Time-series observation of sulfide and nutrients in marine sediments of Funka Bay, Hokkaido [in Japanese]

Ito Shun , Minamikawa Keita , Fanxing Meng , Miyashita Naoya , Ooki Atsushi

北海道噴火湾において2019年3月から6月にかけて、堆積物の酸化還元電位と硫化物、堆積物の間隙水中の栄養塩の時系列観測を行った。噴火湾海盆部St.30では酸化還元電位は直上水から堆積物深さ10cmにかけて、約400mVから約40mVに低下した。これらの電位は一般に硫酸還元が生じるとされる電位よりも高いが、堆積物中のAVS濃度は0.057~0.67 S-mg/g dwであったため、 …

Abstracts of Annual Meeting of the Geochemical Society of Japan 66(0), 73, 2019

J-STAGE
12

Time-series observation of volatile organic iodine compounds in marine sediment in Funka Bay, Hokkaido. [in Japanese]

Minamikawa Keita , Ito Shun , Meng Fanxing , Miyashita Naoya , Ooki Atsushi

海洋や大気には揮発性有機ヨウ素化合物 (VOI) が存在し、その生成には生物の寄与が報告されている。北海道噴火湾の底層水においては、春季ブルーム後の4月から7月にかけてヨードエタンとヨードメタンの2種類のVOIの高濃度が観察されるという報告もある。本研究では、沿岸堆積物が海水中VOIの発生源であると推測し、噴火湾湾奥部における隔月ごと (2018年3月初旬から2019年6月) の …

Abstracts of Annual Meeting of the Geochemical Society of Japan 66(0), 19, 2019

J-STAGE
13

The Earliest Japanese records of the invasive European ascidian Ascidiella aspersa (Müller, 1776) (Urochordata: Ascidiidae) from Mutsu and Ago Bays, with a brief discussion of its invasion processes

Nishikawa Teruaki , Yasuda Akira , Murata Yusuke , Otani Michio

… (Müller, 1776), collected in 2007 from both mid-temperate Oominato, Mutsu Bay, in the northernmost part of Honshû, and from warm-temperate Ago Bay, Kii Peninsula, middle Honshû. … These specimens were collected one year earlier than the previous earliest Japanese record from cool-temperate Funka Bay, Hokkaido. … Mutsu Bay has an international port, which can be assumed to be the invasion gateway for this ascidian from abroad. …

Sessile Organisms 36(1), 1-6, 2019

J-STAGE
14

Link between abundance of toxic dinoflagellate, Alexandrium tamarense, and certain environmental factors, particularly river runoff, in eastern part of Funka Bay, Hokkaido (Note) [in Japanese]

吉田秀嗣 , 金森誠

ホタテガイ出荷規制の事前予測に関する基礎資料を得ることを目的に，Alexandrium tamarenseの出現と河川流量等との関係を検討した。噴火湾東部海域ではA. tamarenseが110細胞L-1以上出現すると，麻痺性貝毒により高頻度でホタテガイの出荷は規制される(吉田・金森，2017)。本稿では4月にA. tamarenseが110細胞L-1以上出現したケースと5月にそれが出現したケース …

北海道水産試験場研究報告 = Scientific reports of Hokkaido Fisheries Research Institutes (93), 99-105, 2018-03

JASI
15

Large cold events induced by El Nino episodes in Funka Bay, northern Japan [in Japanese]

KAWAHATA HODAKA , Hatta Yoshiki , Kajita Hiroto , Ota Yuki , Nishina Kenji , Ikeda Masayuki , Habu Junko

Annual Meeting of the Geological Society of Japan 2018(0), 314, 2018

J-STAGE
16

Genetic diversity of the flathead flounder Hippoglossoides dubius population in Funka Bay inferred from mitochondrial DNA analysis [in Japanese]

Yamamoto Yuki , Ikeda Minoru , Nakaya Mitsuhiro , Suzuki Kota , Takatsu Tetsuya

… population in Funka Bay, characterized by unique ecological features, has been thought to be demographically independent of other conspecific populations. … To clarify such, sequence data of the hyper variable domain in the mitochondrial DNA control region was collected from the Funka Bay population and the genetic diversity compared with previously published data for other populations (Sea of Japan and northwestern Pacific off Tohoku–Hokkaido). …

Japanese Journal of Ichthyology 65(1), 75-80, 2018

J-STAGE
17

Aestivation of the Japanese sea cucumber Apostichopus japonicus revealed by field experiment in Funka Bay, Hokkaido, Japan [in Japanese]

NAKAHARA Kotaro , TOKAJI Hiroki , NAKAYAMA Ryo , GOSHIMA Seiji

… A field experiment was conducted to verify the occurrence of aestivating individuals in Funka Bay, Hokkaido. … These results confirmed that the sea cucumbers in Funka Bay aestivate during summer even in the cool temperate zone. …

Japanese Journal of Benthology 72(2), 94-100, 2018

J-STAGE
18

Relationship between Hydrographic Conditions in Funka Bay, Hokkaido, during Winter and Year Class Strength of the Japanese Pacific Population of Walleye Pollock Gadus chalcogrammus from 1991 to 2013 [in Japanese]

Nakatani Toshikuni

摂餌開始期のスケトウダラ仔魚の主要餌生物であるカイアシ類ノープリウスについて，噴火湾において冬期間は主としてOithona属の再生産によって供給されているものと考えられる。1991年から2012年までの期間，多くの年においてスケトウダラ仔魚が多く分布していた1月下旬(2010年は2月上旬)におけるカイアシ類ノープリウスの分布密度の経年変化についてみると，年級群強度とカイアシ類ノープリウスの分布密度 …

Memoirs of the Faculty of Fisheries Sciences, Hokkaido University 59(1・2), 19-43, 2017-12

IR DOI JASI
19

Effectiveness of using Alexandrium tamarense density for predicting the occurrence of paralytic shellfish poisoning in scallops in Funka Bay, Hokkaido, Japan (Note) [in Japanese]

吉田秀嗣 , 金森誠

北海道，噴火湾において麻痺性貝毒原因プランクトンAlexandrium tamarenseの細胞密度を用いて，ホタテガイの出荷規制を事前に予測できるか否かを検討するための基礎資料を得ることを目的とした。噴火湾東部海域の洞爺湖町沖および西部海域の八雲町沖では，A. tamarense細胞密度とホタテガイの麻痺性貝毒量との間には正の相関が認められた。ホタテガイにおける麻痺性貝毒の発生を警戒すべきA. …

北海道水産試験場研究報告 = Scientific reports of Hokkaido Fisheries Research Institutes (91), 19-30, 2017-03

JASI
20

Channel Sedimentation at a Fishery port in FUNKA BAY, JAPAN [in Japanese]

堀江岳人 , 野坂弥寿二 , 田中仁

東北地域災害科学研究 = Tohoku journal of natural disaster science 53, 39-45, 2017-03

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