Robert Arlinghaus
@RArlinghausFish
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I like fish + fishing, study both as professor of fisheries. Editor Fish Fish. + Z. Fischerei. Private account/tweets, RT does not mean endorsement.
Berlin, Deutschland
Joined May 2014
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Pinned Tweet
Does the experience of killing animals in
#hunting
and
#fishing
/
#angling
produce the best environmental stewards? We present arguments pro and against this controversy in
@naturesustainab
Led by Sam Shepard
@InlandFisherIE
with
@EricavonE
and others.
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Stop breathing and get a view underwater through high resolution fish telemetry. Wels catfish (black) is the king of the night and goes to the social bed at day. Perch (red) rocks the lighthouse, and carp (yellow) and tench (green) explore resources nearshore. Rock'n'Roll in Oct.
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High resolution insights into the February behaviour of multiple predator and prey in a German lake: black (catfish), red (perch), yellow (carp), green (tench). Look how the fish species are separated at night, and how social the (large) perch become during the day.
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I am a tenured fisheries professor at a German research institution. My job is mostly a dream job (see separate thread), but some things are super frustrating in
#academiclife
in Germany. Here is list of agony. A thread.
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Revolution in high resolution tracking of fish and wildlife. In our new study in
@ScienceMagazine
led by
@ran_nathan
we summarize the field and provide an outlook into the future of movement ecology
@ScienceMagazine
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Unbelievable and excited. The German Science Foundation (DFG) has granted me the highest national award for science communication - the DFG Communicator Award. Thanks to my team for exzellence in science communication over the years. This is your award!
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Adding habitats beats adding fish. Outcomes of your massive replicated whole lake experimentation in fish conservation is now out in
@ScienceMagazine
So proud of my team and
@RadingerJ
as lead author. 120 lake-years, 150,000 fish + dozen of angling clubs.
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A look underwater. 7 days in the life of a wild carp population in cold water in November 2015. I thought warmwater fish rest in cold water? They do quite the opposite.
@LeibnizIGB
@HumboldtUni
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Four proposal rejections in a row. Some with very high volume and significant time investment. This means I will be unable to keep lab under funding starting im July. I tried hard. But we have to size down substantially from 20 to 3 team members. Sad.
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And I am the first author in that paper. Shit.
@SMWadgymar
We had "fluid shits" rather than "fluid shifts" make it past 4 co-authors, an editor, handling editor, 3 referees and technical editor and into a respected peer reviewed journal. I guess shit happens... ;)
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Since Putin's invasion, my job in fisheries science and so much more feels like trivial matters. It is hard to concentrate and find motivation. And the pandemic feels like a minor issue.
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Want to see what different freshwater fish do 24/7 in a natural lake? And whether they show social behaviour within or among species (carp, catfish, tench, perch)? Then our new paper in
@RSocPublishing
is for you, with
@MonkCT
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Time to retire. Our
@PNASNews
study on selection of timid pike by
@MonkCT
made it into a quizz in a prime TV show in Germany. Fisheries-induced timidity goes public!
@tv_elton
did you get the answer right? If not, let me know.
@HumboldtUni
@LeibnizIGB
@dfg_public
@BMBF_Bund
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I can happily announce I will be joining Fish and Fisheries
@wileyecology
as co-editor as of November, 1, to help shape the future of this journal in a great team of co-editors with Gary Carvalho and Paul Hart.
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7
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Publishing a
@ScienceMagazine
paper with perch and roach, not sharks, whales and tuna. I like it.
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A visual of our new
@CJFAS
paper on perch (blueish) - angler (yellow-greenish) interactions. Note how rarely encounters happen (and not when the research team calls for lunch). Ultimate capture is not about encounters but rather a skill effect of lure use.
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I have zero staff allocated to my professorship. This means I cannnot keep talented people that would be fine with non professor research tracks on positions, constantly loosing key method expertise and having zero competence stability beyond myself.
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Ok. What shall I say?
#seaspiracy
achieved a miracle. All fisheries heros united to combat misformation. I can retire in piece and go fishing for the rest of my live, saying thanks.
Really great article by Daniel Pauly on Seaspiracy. I agree with all of his points. Link below:
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It just took 23 years of science to get an empirical paper accepted in THE journal. But psssst, not allowed to talk about content yet. Spoiler: it deals with habitats, fish stocking and lakes and transdisciplinary work with anglers. So much joy now!
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Bildungsweltmeister Deutschland. Exzellenzuni
@HumboldtUni
. Das ist da, wo der Professor mit eigener Leinwand, eigenem Beamer, eigenen w LAN Hospot den Vorlesungsraum überhaupt vorlesungsfähig gestalten muss. Passiert beim Thaer Institut. Irgendwie nicht akzeptabel
@LeibnizIGB
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"Anglerporn": Perch rocks the house. High resolution october behaviour of piscivorous large, Eurasian perch. The lake is 25 ha and no longer stratified. Fun to watch the little daytime snackers.
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The German rules of prohibiting non permanent positions after 6/12 years are a disaster because risk averse leaders now say that people have to leave even before the legal threshold to avoid lawsuits, constantly loosing the best scientists.
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Risk averse administrators (I would say 95% of all) and exponentially rising administator burden ruin many of my days and substantially cost job satisfaction and productivity. New positions often are more admin people at the expense of new scientists, who increase demands on me.
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In our new paper in PNAS (Post Nature and Science) we show that assuming egg numbers scale in proportion to body mass (isometry) may lead to systematic overfishing because in reality hyperallometry in fecundity is common.
@LeibnizIGB
@HumboldtUni
@djm_MEEG
@MarcMangel1
@PNASNews
0
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Please RT: Do you want to join the IFishMan lab ()
@LeibnizIGB
in Berlin either as postdoc or PhD studying the spatial ecology of northern pike in Baltic Sea around Rügen using telemetry and other tools? Then please apply here:
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Salmonpike. A new species? These are migratory pike who live in brackish lagoons but spawn in streams. Many of them are blocked. Each little stream has an own stock. We now document repeated migration into same stream by the same fish in different years.
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Our lab has now produced 300 peer reviewed papers and over 650 published items overall. I am a senior scientist now aged 47. Marginal benefits per paper seem to decline. Should I do something else instead? Books? Admin? More mentoring? Or papers as before? Serious Q. (Old pic)
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You know which little detail makes me smile and also proud? That the shape of our small 25-ha research lake (and a pike) made its way into a review on movement ecology that is in
@ScienceMagazine
this week
#smallvictory
#happyPI
@MonkCT
@ThomasKlefoth
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I am a tenured fisheries professor. My experience is mostly from Germany. Here is what I like about
#academiclife
and
#academia
. A thread
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@Dr_Oakleaf
@RittwegTimo
@ulfochhavet
Yes. The story is complex. We also have other threats like freshwater access blocked, dikes, altered food web, less hering, rising predators, fisheries, including local variation, eutrophication, warming winters ....
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Sustainable fisheries needs considering recreational fisheries. We present five necessary steps for policy reform in
@PNASNews
with
@FreshwaterSteve
@SJC_fishy
@hilbornr
@josep_alos
@RU_Fisheries
@EliFenichel
@ThomasKlefoth
@LeibnizIGB
@HumboldtUni
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Multiple years of hard work, tough reviewers, more work, fear of rejection. Acceptance in journal so full of itself that it issues an embargo (read shut up). Whatever. Champagne! Tip. It deals with moving stuff that lives.
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Check this out - how wels catfish and perch rock the lake reality. Check the diurnality out. From the IFishMan fish telemetry project at a whole-lake scale.
@LeibnizIGB
@HumboldtUni
@ulfaslak
1
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Highly discriminatory hiring processes, males favored in the past, females and others today, often jepordizing research quality and project demands. Hiring processes running under a banner of transparency when they are not.
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Our IFishMan lab received a recognition for excellence in inter- and transdiscipinary by
@CircleU_eu
today for fisheries. Thanks for all the support over the years and our superb team!
@HumboldtUni
@LeibnizIGB
@BMBF_Bund
@IRI_THESys
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The fact science has sold themselves to corporate money making commercial publishers and pay three times: subscription, peer review and open access fees. Predatory publishers and an erosion of peer review quality.
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Every fisheries professor has to go fishing from time to time. Seatrout from Denmark.
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I have just received remotely this award of excellence in public outreach by
@AmFisheriesSoc
. So proud and honored. Cannot personally attend
#AFS148
as I am given outreach talk tomorrow to German fisheries stakeholders. THANKS.
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The unsupported assumption a tenured white male professor must be a bully and malbehaved. Those cases exist but they do not warrant the generality of the accusation. I feel harassed!
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The obsession with Impact Factors and papers in glam journals.
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New in
@sciencemagazine
: Big fish contribute heavily to total egg production and should be protected more. We have been saying this in the context of pike and other freshwater fish management since 2010 assuming exactly the now shown mechanisms.
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In our new paper led by
@FisheriesRobert
we provide a summary for how to apply telemetry to study fish. A big joint achievement of many in the field that started at the
@FishTelGroup
. With many co-authors such as
@josep_alos
@SJC_fishy
@DrBrodin
and more
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Always the best moments.
@matern_sven
defends his PhD thesis in fisheries ecology
@HumboldtUni
and
@LeibnizIGB
. I wish you all the best in your next steps. Yours
#proudsupervisor
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Let the big fish swim again - in our new paper led by
@djm_MEEG
just out in
@PNASNews
we show for 32 capture fisheries that saving a greater proportion of large fish from harvest maybe a good idea. With
@MarcMangel1
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Unglaubliche Ehre: Ich habe gerade den Communicator Award 2020 von der Deutschen Forschungsgemeinschaft bekommen, Sonderpreis an Christian Drosten
@c_drosten
@dfg_public
@HumboldtUni
@LeibnizIGB
@LeibnizWGL
Danke an ganzes Team für herausragende Arbeit!
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Dear North American friends. Today many Central Europeans eat carp. Your pest is our Christmas dish. Now call it disgust or love?
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Stay tuned. New paper accepted at Transactions of the American Fisheries Society by
@AFS_President
showing that common carp are able to develop hook avoidance after being hooked and released (private learning) and also after just observing others being hooked (social learning).
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The lie that Nature/Science papers land you a professorship in Germany. Networks, buddies, mentors, the right gender and fit are way more important nowadays.
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Stakeholder wisdom: our new paper in
@naturesustainab
led by
@PAminpour
shows a bunch of anglers can approximate the best scientific understanding of the ecology of an exploited fish species, if you do the aggregation of the collective intelligence right.
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Happy new year starts with 7 days of high resolution underwater carp behaviour in January 2015 in a 25 ha natural lake (max 8 m, 3 m around the numbered dots). Conditions - no ice, lake is shown in northern direction. Still no sign of slow winter movements.
@DirkBrockmann
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And now high resolution carp behaviour in the wild over 7 days in December. Resting is certaintly something else.
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Our new book on lakes, fisheries and society arrived. 500 pages joy and love.
0
5
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We use the Ostrom social-ecological system framework to show, using a large sample of angling clubs, which factors determine voluntary investments into biodiversity. Governance, social norms and property rights more important than proecological cognitions
0
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In March we published a paper in
@ScienceMagazine
on the performance of habitat management vs. stocking led by
@RadingerJ
. I bought five printed issues as a memory. Online interest was high > 10.000 downloads, altmetric score > 900. New record for me. Thanks for interest. Wine!
2
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Carp can avoid being hooked simply by observing others (called social learning) our new study published open access in
@AmFisheriesSoc
shows. With
@SJC_fishy
1
13
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We are filling two tenure track jobs
@LeibnizIGB
in fish
#movement
ecology and fish
#ecophysiology
. Please consider applying and spread the word to become our new colleagues in our fish and fisheries department in
#berlin
.
and
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Honestly. This
#communicatoraward
still feels unreal. Academia is so much built on criticism and doubt. And
#impostersyndrome
. This recognition is super motivating to me. THANK YOU jury
@dfg_public
, funders
@BMBF_Bund
and team!
@HumboldtUni
and
@LeibnizIGB
websites still smiling.
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Day 3 of student fish sampling course. Now sampling lake fish in Brandenburg. And this beauty perch.
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Invasive species alert. Largemouth bass captured by my son south of Berlin.
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I caught an invasive species south of Berlin: largemouth bass.
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What a flash back. 1999. I wasnt a faculty, but an intern doing aquaculture stuff in Baton Rouge Louisiana
@LSU
. Then I found the book Angler Survey Methods by Ken Pollock et al. 1994 in local library. What??? One can do science on angling? Lets do that instead back in Germany.
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I re-read this paper by
@KatjaEnberg
and others, and I have to conclude again this is absolute excellence in scientific writing. This is how one should write, I think, narrative conceptual reviews. Congratulations for excellent work
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With starting date January I will be recruitung two post docs to work Baltic cod, tipping points and its relation to commercial + recreational fisheries. Looking for economist/econometrician and human dimension special. Each position 21 months full time. Ping me if interested.
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First global assessment on how much recreational fish harvest contributes to nutrition, details in our latest publ.:
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Please RT: Seeking new postdoc in quantitative modelling to assess status of Baltic Sea pike at Rügen + identify management options with stakeholders. Please join our multidisciplinary Boddenpike IFishMan team in Berlin. Deadline Oct., 30.
@LeibnizIGB
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Authors. Please. Could you be specific in your paper titles? I want to know organism and habitat. I am tired of getting excited about general titles and then realizing aber clicks that paper is neither fish nor aquatic. Paper titles should be easy for readers.
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Large female cod are connectors among spawning sites. More evidence that big fish matter in fisheries management:
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The unsupported assumption something must be wrong with productive scientists that write a lot. No. We just like this and are passionate and have great teams.
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The erosion in passion for science and ability to read, argue and write among many students.
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Fifth rejection letter of five different manuscripts in a row. Time for opening champagne and rethink journal choice...
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Our river
#oder
#odra
fish sampling after
#fishkill
with students of
@HumboldtUni
revealed a decline in fish biomass by 75% for two site relative to average from 2010 to today. First before-after data for shoreline, but findings still preliminary.
@RadingerJ
1
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We will be searching for new postdocs, PhD students and communication manager soon to work on 4 year project on Baltic Sea pike as of January 2019. Please contact me when interested.
0
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Our latest paper on how translocated fish behave in high resolution in the wild.
Now in Early View.
How do 2 adult top predator species behave long after introduction to a new environment? Are there fitness consequences? Translocated catfish space-use stays high. Translocated pike mortality is elevated. Pike interbreed w/ residents.
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0
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We started a two week field course in fish sampling. First River Odra fish kill investigations! And contrasts to oxbow lakes.
@HumboldtUni
@LeibnizIGB
1
3
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What makes recreational anglers happy? Our new meta-analysis led by PhD student
@birdsong_max
in Fish and Fisheries
@wileyecology
provides answers. Many things, but catch matters a lot, while the environmental quality is of less importance. Paper OA:
5
8
40
What a cool paper in
@ScienceMagazine
documenting substantial fish community shifts toward smaller bodies commlunities due to warming in the paleobiological record, including colleagues from
@GEOMAR_de
1
8
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The best time of science, proof-reading. I love it. Especially for paper that is important and that took up a lot of energy and dedication. Great synthesis work by
@MalwinaSchafft
on recreation ecology to be published as environmental evidence in
@RSocPublishing
.
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8
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That makes us happy. After three rounds of revision a long-in-the-making paper led by
@MonkCT
on how translocated adult pike and catfish respond to being introduced to a novel lake is accepted in
@AnimalEcology
: Key finding - it is a challenge to establish, with fitness costs.
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Please RT - Join my lab in Berlin as Modeller (PostDoc, 4 yrs), Human Dimensions Fisheries (PostDoc, 3 yrs), Fisheries Biologist (PhD student, 4 yrs), Communications Manager (4 yrs) to form new team to study Baltic pike in Germany. Apply online Sept, 21
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Some papers are just hard. Third rejection of our pike population genetics work, each tim other reasons, often conflicting advice. The first author has moved on, new job, no time, paper still unpublished. Solution: A preprint, to allow you look at it now.
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You simply cannot study stuff with implications for wild populations with domestic fishes. Period.
Does adaptation to stable temperatures lead to a loss of physiological plasticity?🌡
In our new paper
@PNASNews
we explore this by comparing lab (150+ generations in stable conditions) and wild (fluctuating temperatures in nature)
#zebrafish
🐟1/7
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High resolution behaviour of a natural population of northern pike in a 25 ha lake. Blueish catchable by angling, red uncatchable by angling.
@LeibnizIGB
@HumboldtUni
@FVB_adlershof
@LeibnizWGL
1
15
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Are anglers the best protectors of aquatic environments or an are they just selfish exploiters of nature? We review this controversial assumptions against a novel stewardship model in
@FishFishJournal
@jorg_freyhof
2
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Further robust evidence that fish stocking often fails. Five species, replicated lakes, whole lake experiment, 6 years. Led by
@matern_sven
and
@RadingerJ
0
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@dfg_public
@dieternuhr
Liebe
@dfg_public
. Grösse beweist sich darin, wie mit Fehlern und Konflikten umgegangen wird. Das Statement ist exzellent und die Lösung auch. Und wir alle haben etwas gelernt, eine wichtige Debatte ist angestoßen. Vielen Dank dafür!
0
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Exciting! The IFishMan lab will get an award of exellence in inter- and transdisciplinary research awarded by
@CircleU_eu
- the European University Alliance of 9 leading universities in Europe. The ceremony will be November, 24, in Belgium. Champagne!
@HumboldtUni
@LeibnizIGB
4
3
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Very proud and great feeling to hand in 35 out of 54 management recommendations with stakeholder agreement for Rügen pike to fishery ministry in MV. But why does team let me stand up looking like a drunk professor who does not have control about clothing? (C) Lindner
@DAFV_fish
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"Angler porn" reaches next level. Now we visualize the high resolution behaviour of three top freshwater predators jointly (perch, catfish, pike) in a natural lake of 25 ha. Check it out. Which patterns do you see? Let's discuss.
@LeibnizIGB
@HumboldtUni
5
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In stream salmonids, the catchability increases with declining local population size, leading to hyperstable catch rates. And catchability varies by species. Check our new work out from Japan led by Jun Tsuboi:
@cjfas
1
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I am a Falling Walls Winner 2020, i.e., among the top ten science engagers internationally. Tune in to the
#GrandFinale
tomorrow to find out if my project is also the Breakthrough of the Year: Project video is here
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