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Posts by Ichiro Matsuzaki

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World's predominant nitrogen fertilizer (urea) causes extreme eutrophication of surface waters in Canadian Prairies, China and USA when high urea use interacts with phosphorus-rich waters. New from @umanitoba.bsky.social & ureginalimnology.bsky.social at @naturewater.bsky.social rdcu.be/fdx2U

3 days ago 4 3 0 0
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Madison lakes turn crystal clear in May thanks to tiny organisms, researcher says MADISON (WKOW) — Clean Lakes Alliance hosted an event today to explain seasonal changes happening to Madison's lakes.

Madison lakes turn crystal clear in May thanks to tiny organisms, @hildug.bsky.social says

www.wkow.com/news/environ...

1 week ago 1 0 0 0
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New method for monitoring groundwater recharge Artificial groundwater recharge is one way of preparing for increasingly frequent dry spells. The length of time the water spends in the ground between infiltration and extraction is crucial to its qu...

New method for monitoring groundwater recharge 💡

👉 www.eawag.ch/en/info/port...

@unibe.ch @unibas.ch @unil.bsky.social

1 week ago 3 2 0 0
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Effects of salinization on aquatic food webs Salinization is a global environmental threat to inland and coastal aquatic ecosystems. It is defined as an increased concentration of ions in water (…

New chapter 📢 How does #salinization affect aquatic #foodwebs? With @cunilleramontcusi.bsky.social, @mphebert.bsky.social, @zadereev.bsky.social, BKefford and MCañedo-Argüelles, we summarize effects across trophic levels and how they can propagate through the food web

Read here: shorturl.at/0YfLL

1 week ago 9 8 0 0
サクラの開花情報

He was collecting phenological data monitored by Japan Railway Company. The data is available from this site evt.cyberstation.ne.jp/main.asp?AC=...

The cherry bloosm dates are updated every day in Spring. Like him, I'm watching this website and report the full cherry blossom dates of Arashiyama.

1 week ago 0 0 0 0

Yes, it was very sad news. I took over a part of Prof. Aono works. I'm a freshwater ecologists. I have provided some Japanese phelogical data for State of Climate of American Meteorological Society every year, including the bloom date of Cherry blossoms in Arashiyama.
wmo.int/publication-...

1 week ago 1 0 1 0
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ゲノムでみえた希少魚ネコギギの集団形成史―ゲノムに残る最終氷期の河川の痕跡― 近年のゲノムシーケンシング技術の向上は、生物多様性の理解にも革命をもたらし続けています。身近な生物に対してゲノム分析を適用することで、その自然史を解像度高く理解し、保全や利用に応用することが現実的になっています。

京大と遺伝研からプレスリリースもしていただきました。
この研究では,京大でのぼくの指導教員である渡辺さんがポスドク時代に集め始めたというサンプルやデータを使いました。そのいくつかはちょうどぼくが生まれた頃に採集されたものです。また,共著者には当時渡辺さんが所属していたラボのPIの西田睦さん,ぼくにとって兄弟子にあたる田畑さん,三品さんにも加わっていただきました。ネコギギたちの長い歴史を前にすればささやかなものではありますが,淡水魚の自然史研究の歴史も繋いでいきたいと改めて感じた研究でもありました。
www.kyoto-u.ac.jp/ja/research-...

3 weeks ago 11 6 1 0
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Genome‐Wide Analysis Successfully Resolves Population Structure Shaped by Recent Divergence in the Endangered Bagrid Catfish Pseudobagrus ichikawai Using genome-wide SNP data, we revealed previously undetected population structure in the endangered bagrid catfish Pseudobagrus ichikawai. Our results suggest that past paleo-river systems shaped th...

論文が出版されました! ネコギギの遺伝的集団構造とその成立過程をゲノムワイドデータを用いて推定した研究です。
ネコギギは伊勢湾・三河湾周辺の河川の中・上流部にのみ分布し,生息地改変で絶滅の危機に瀕する地域集団を多く抱える淡水魚ですが,遺伝的多様性の低さのため,地域集団間の関係はほとんど分かっていませんでした。
この研究では,ゲノムワイドデータを用いることで本種の詳細な遺伝的集団構造を明らかにしました。現在のネコギギの遺伝的集団構造は,最終氷期に伊勢湾・三河湾の湾部に存在した古水系による河川の連結を強く反映していることも明らかになりました。
doi.org/10.1002/ece3...

3 weeks ago 35 15 2 0
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Resilient California Fishes: Sacramento Pikeminnow By Peter B. Moyle and Thomas L. Taylor . . . The fresh waters of California support a diverse, highly endemic fish fauna. Many of them are on extinction trajectories. In this “Resilient California Fishes” blog series, we discuss native species that have sufficient resiliency to keep populations large and sustainable, even in highly altered habitats. Information on these species should help us to understand why they have such resiliency in the face of large-scale changes to California waterways.

Resilient California Fishes: Sacramento Pikeminnow

By Peter B. Moyle and Thomas L. Taylor . . . The fresh waters of California support a diverse, highly endemic fish fauna. Many of them are on extinction trajectories. In this “Resilient California Fishes” blog series, we discuss native species…

1 month ago 3 2 0 1
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Congratulations! Dr. Noriko Takamura, who was my mater and PhD supervisor, won the Ecological Society of Japan Prize 2026. I learned (have learned) a lot from her. She always taught me the importance of identifying a driving factor.

Our retentive study is here!
link.springer.com/article/10.1...

1 month ago 7 0 0 0
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#ESJ73
三編集長が揃いました!
A full house at the booth! So delighted to have all three of our Editors-in-Chief together at the booth today👍
Come by and say hello!

📚日本生態学会英文誌ブース

From left to right:
Hiroyuki Yokomizo 横溝裕行 PE編集長、
Fujio Hyodo 兵藤不二夫 ER編集長、
Takashi Miyake 三宅崇 PSB編集長

1 month ago 4 1 0 1
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With Dr. George Sugihara (Scripps Institution of Oceanography, UC San Diego). As a CCM user, I was very excited to meet the developer in person. He was invited to a symposium at the annual meeting of the Ecological Society of Japan, held in Kyoto this year. He was very kind!!

1 month ago 2 0 0 0
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Input from new paper

Andrew Gonzalez et al. 2026. From data to decisions: Toward a Biodiversity Monitoring Standards Framework. PNAS
www.pnas.org/doi/10.1073/...

1 month ago 0 0 0 0
Atmospheric CO2 concentration graphed from 1957 to present, showing a continuous increase to current 429 parts per million. The annual natural cycle of slight ups and downs can also be seen. Measurements are taken hourly at the top of Mauna Loa, Hawaii

Atmospheric CO2 concentration graphed from 1957 to present, showing a continuous increase to current 429 parts per million. The annual natural cycle of slight ups and downs can also be seen. Measurements are taken hourly at the top of Mauna Loa, Hawaii

The latest update from the Mauna Loa CO2 observatory, shows current #carbondioxide concentrations continue to accelerate upward. The latest reading? 429.1 parts per million. Pre-industrial concentrations were under 280 ppm.
#climatechange
#climate

1 month ago 76 41 7 6

Great to see Madison limnology covered on NPR!

1 month ago 3 1 0 1
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More than mitigation: The role of forests in climate adaptation Forests regulate global and local climates in ways that impact human well-being. In this Review, we discuss the scale-dependent mechanisms through which forests regulate climate, highlighting their co...

In a new #ScienceAnalyticalReview, researchers discuss the scale-dependent mechanisms through which forests regulate climate, highlighting their contributions to global mitigation and local adaptation.

Learn more: https://scim.ag/4aGldbI

2 months ago 36 12 0 0
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Long‐Term Records Reveal Temperature‐Driven Nutrient Limitation and Predict Intensified Algal Blooms in Global Lakes This graphical abstract illustrates the analytical framework and key outcomes of each step used to investigate the temperature–nutrient regulation of harmful algal blooms in global lakes. (A) Multi-y...

Our new paper is published in Global Change Biology. Using long-term global lake dataset, we found temperature-driven nutrient limitation on algal bloom in lakes.

onlinelibrary.wiley.com/doi/10.1111/...

2 months ago 5 2 0 0
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Input from new study

Tamario et al. 2025. Barriers decouple population dynamics of riverine fish, and asynchrony of subpopulations promotes stability within fragments. Royal B

royalsocietypublishing.org/rspb/article...

2 months ago 3 0 0 0
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On the Brink of Extinction? Special Edition: Is Climate Change Driving the The Earth has suffered five mass extinctions. Human activities are now accelerating climate change and the threat of the

On the Brink of Extinction? Special Edition: Is Climate Change Driving the "Sixth Mass Extinction"?
www3.nhk.or.jp/nhkworld/en/...

2 months ago 2 0 0 0
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Fishing ban halts seven decades of biodiversity decline in the Yangtze River China’s rapid economic development has triggered an unparalleled freshwater biodiversity crisis since the 1950s. To restore fisheries resources, the Yangtze River Fishing Ban was implemented in 2021 t...

Fishing ban halts seven decades of biodiversity decline in the Yangtze River | Science www.science.org/doi/10.1126/...

A collaboration with Yushun Chen, Seb Brosse, @sjcfishy.bsky.social and other! @uwenvironment.bsky.social @uwsafs.bsky.social

2 months ago 70 24 2 1
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Body Size and Local Density Explain Movement Patterns in Stream Fishes We evaluated whether body size (intrinsic) and intra- and interspecific densities (extrinsic) have an impact on the movement rates of four fish species in a small stream. We found that larger individ....

New paper out from our group - Body Size and Local Density Explain Movement Patterns in Stream Fishes - LaRoque - 2026 - Ecology and Evolution - Wiley Online Library onlinelibrary.wiley.com/doi/10.1002/...

2 months ago 12 2 0 0

I joined online! Thank you very much for the amazing presentation, Fukami-san! I was really interested in biculture and two-eyed seeing.

2 months ago 0 0 0 0
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諏訪湖で「御神渡り」現れず8季連続「明けの海」、戦国時代の最長記録に512年ぶりに並ぶ 【読売新聞】 長野県の諏訪湖の結氷状況を観察している同県諏訪市の 八剱 ( やつるぎ ) 神社の宮坂清宮司(75)は立春の4日、今季は結氷した湖面がせり上がる「 御神渡 ( おみわた ) り」が現れない「明けの海」になったと宣言した

Hi Sapna @sapnasharma.bsky.social,

Lake Suwa was fully frozen on January 26, but temperatures increased soon afterward.

Yesterday, Shinto priests declared Akenoumi (meaning the lake failed to remain frozen), indicating that Omiwatari did not occur this winter.

www.yomiuri.co.jp/national/202...

2 months ago 2 0 0 0
Map showing projected changes to the Chesapeake Bay area due to sea level rise.

Map showing projected changes to the Chesapeake Bay area due to sea level rise.

The fast-sinking Chesapeake Bay region offers a window into future scenarios for tidal wetlands.

Learn more on #WorldWetlandsDay: https://scim.ag/4aayxov

2 months ago 38 16 1 0
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High-precision tracking of human foragers reveals adaptive social information use in the wild Foraging complexity and competitive social challenges are considered key drivers of human cognition. Yet, the decision-making mechanisms that underlie social foraging in the real world remain unknown....

Input fron new study.

Schakowski et al. 2026. High-precision tracking of human foragers reveals adaptive social information use in the wild. Science

www.science.org/doi/10.1126/...

2 months ago 1 0 0 1
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Warm waters undermine cryptic female choice Read the free Plain Language Summary for this article on the Journal blog.

Input from new study.

Kustra et a. 2026. Warm waters undermine cryptic female choice. Functional Ecology

besjournals.onlinelibrary.wiley.com/doi/10.1111/...

2 months ago 0 0 0 0
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Input from new study.

Carey et al. 2026. High-frequency monitoring data reveal substantial variability in the intrinsic predictability of ecosystem dynamics. Ecology
esajournals.onlinelibrary.wiley.com/doi/10.1002/...

2 months ago 4 4 0 0
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I’m studying at a cafe this morning by reading papers that I has accumulated in my backpack. This review paper is really interesting!

3 months ago 1 0 0 0
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I'm just jumping into the Thermal Ecology Alliance led by @patricepottier.bsky.social et al.

www.thermalecologyalliance.org

3 months ago 1 0 0 0
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Want to join a global 🌎 initiative to test the thermal limits of 🐟 using standardised approach? Led by @patricepottier.bsky.social, we are planning a globally distributed experiment to collect data on fish embryonic heat tolerance 🌡️. Make this experiment global!

🔗: www.thermalecologyalliance.org

5 months ago 28 18 0 0