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ProfColinBean

@profcolinbean.bsky.social

Freshwater fish biologist - big on rare species, their ecology and conservation. Also known to dabble in non-native species issues. Personal account and all views are entirely my own. LeantΓ³ir Celtic FC πŸ€

1,916 Followers  |  1,083 Following  |  791 Posts  |  Joined: 15.11.2024  |  1.6162

Latest posts by profcolinbean.bsky.social on Bluesky


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Long‐Term Records Reveal Temperature‐Driven Nutrient Limitation and Predict Intensified Algal Blooms in Global Lakes

πŸ”— buff.ly/9mjc4mH

22.02.2026 00:25 β€” πŸ‘ 10    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Barriers decouple population dynamics of riverine fish, and asynchrony of subpopulations promotes stability within fragments Abstract. The spatial synchrony framework suggests that asynchrony among subpopulations in different branches of a river network should stabilize the metap

Barriers decouple population dynamics of riverine fish, and asynchrony of subpopulations promotes stability within fragments. Proc Biol Sci 1 June 2025; 292 (2049): 20250429. doi.org/10.1098/rspb...

20.02.2026 22:06 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Degradation of fish food webs in the Anthropocene The decrease in body size driven by the selective species turnover is widely altering fish food web topology and function.

New paper out examining fish food web degradation in the Anthropocene. We show the structure of aquatic food webs are changing-- even when species richness doesn’t. These signals are strongly associated with decreases in body size within fish communities. www.science.org/doi/10.1126/... 🌐🐠🐑🦈🐟

19.02.2026 19:06 β€” πŸ‘ 103    πŸ” 59    πŸ’¬ 0    πŸ“Œ 1
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A Mysterious Salmon-Killing Affliction is a Mystery No More - bioGraphic In California, scientists tracked the source of a severe vitamin deficiency that’s killing endangered fish.

Man, on top of everything else that’s plaguing salmon, now we have to worry about… vitamin-B deficiency related to excess predation on anchovies?!

www.biographic.com/a-mysterious...

19.02.2026 22:35 β€” πŸ‘ 69    πŸ” 22    πŸ’¬ 4    πŸ“Œ 1
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Inferring activity patterns of aquatic animals from single‐receiver acoustic telemetry setups Acoustic telemetry has become an essential tool for studying activity patterns of animals in aquatic environments. Activity is typically recorded using transmitters with integrated sensors or dens...

Inferring activity patterns of aquatic animals from single-receiver acoustic telemetry setups. Methods in Ecology and Evolution, 16, 2931–2944. doi.org/10.1111/2041...

17.02.2026 19:32 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Atlantic salmon (Salmo salar L.) kelt rheotaxis and position choice are influenced by flow velocity and turbulence in a regulated river The migratory behaviour of Atlantic salmon kelts is poorly understood. Due to the Atlantic salmon's considerable socio-economic and ecological importance, their precipitous population abundance decli...

Atlantic salmon (Salmo salar L.) kelt rheotaxis and position choice are influenced by flow velocity and turbulence in a regulated river. Journal of Fish Biology, 1–17. doi.org/10.1111/jfb....

17.02.2026 19:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Domestication‐Admixed Atlantic Salmon (Salmo salar) Establish a Productive Population in the Wild We document colonisation of a river by highly (average 37%) domestication-admixed salmon using genomic and phenotypic data. The resulting population now displays freshwater and marine productivity wi....

Domestication-Admixed Atlantic Salmon (Salmo salar) Establish a Productive Population in the Wild. Ecology Letters 29, no. 2: e70319. doi.org/10.1111/ele.....

17.02.2026 12:26 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Unlocking natural history collections to improve eDNA reference databases and biodiversity monitoring Abstract. Biodiversity changes due to human activities highlight the need for efficient biodiversity monitoring approaches. Environmental DNA (eDNA) metaba

Unlocking natural history collections to improve eDNA reference databases and biodiversity monitoring, BioScience, Volume 75, Issue 12, December 2025, Pages 1083–1095, doi.org/10.1093/bios...

15.02.2026 15:36 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

eDNA metabarcoding provides scalable and continuous biodiversity monitoring across the tree of life. doi.org/10.64898/202...

14.02.2026 20:52 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Natural Analogues of Climate Change Can Reveal Fish Responses Across Multiple Levels of Biological Organisation Anthropogenic climate change is threatening ecosystem functionality and biodiversity globally. While significant research has been dedicated to understanding how organisms may respond to future clima....

Natural Analogues of Climate Change Can Reveal Fish Responses Across Multiple Levels of Biological Organisation. Fish and Fisheries 1–14. doi.org/10.1111/faf....

13.02.2026 22:40 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Identifying knowledge gaps about context dependency in freshwater species invasions The abiotic template of freshwater ecosystems is being altered by human activity on a global scale, often promoting the establishment of new invasive taxa and increasing the likelihood of facilitatio...

Identifying knowledge gaps about context dependency in freshwater species invasions. Oikos e11537. doi.org/10.1002/oik....

13.02.2026 21:57 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Warming causes modest increase in the consumptive demands of invasive Northern Pike (Esox lucius) in Alaska freshwaters - Biological Invasions Warming freshwaters can have profound effects on species composition and community structure and can increase the consumptive demand of predators. Here we explore synergistic impacts of warming and in...

Warming causes modest increase in the consumptive demands of invasive Northern Pike (Esox lucius) in Alaska freshwaters. Biol Invasions 28, 55 (2026). doi.org/10.1007/s105...

13.02.2026 21:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Harnessing social media data to track species range shifts Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social me...

Harnessing social media data to track species range shifts. Conservation Biology, e70234. doi.org/10.1111/cobi...

13.02.2026 21:50 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Intertwined threats of nationalized nature and privatized ecological research for global biodiversity conservation The delineation of nature by political borders and the restricted accessibility of ecological research data present intertwined challenges to global biodiversity conservation. We examined how the nat...

Intertwined threats of nationalized nature and privatized ecological research for global biodiversity conservation. Conservation Biology, e70228. doi.org/10.1111/cobi...

13.02.2026 21:49 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Fish Host Suitability for the Threatened Freshwater Pearl Mussel (Margaritifera margaritifera) and Implications for Reintroductions. Diversity 2026, 18, 76. doi.org/10.3390/d180...

13.02.2026 21:43 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Redirecting

Acute thermal stress responses of Atlantic salmon (Salmo salar) in freshwater and seawater. Journal of Thermal Biology, Volume 136,Β February 2026, 104370. doi.org/10.1016/j.jt...

13.02.2026 21:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Redirecting

Navigating challenges and opportunities in predator rewilding: Perspectives from the recolonization of Eurasian Otters (Lutra lutra) in Norway. Global Ecology and Conservation, Volume 66, April 2026, e04066. doi.org/10.1016/j.ge...

13.02.2026 21:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Redirecting

Deep learning models used to detect fish movement over resistivity counters. Ecological Informatics
Volume 94,Β March 2026, 103606. doi.org/10.1016/j.ec...

13.02.2026 21:34 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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TRACKS: Six good practices for Non-Indigenous Species research and their SWOT evaluation Addressing the challenges posed by Non-Indigenous Species (NIS) demands coordinated efforts across terrestrial, freshwater and marine ecosystems. In this study, we engaged a diverse group of 90 Italia...

TRACKS: Six good practices for Non-Indigenous Species research and their SWOT evaluation. NeoBiota 105: 229-257. doi.org/10.3897/neob...

13.02.2026 20:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Deficiency of vital organic nutrients in ecosystems limits brain development and fitness in wild fish Summary: Omega-3 LC-PUFA deficiency in aquatic ecosystems alters brain fatty acid composition in salmonids, reducing their cognitive capabilities and competitiveness in social interactions, highlighti...

Deficiency of vital organic nutrients in ecosystems limits brain development and fitness in wild fish. J Exp Biol (2026) 229 (3): jeb250914.
doi.org/10.1242/jeb....

13.02.2026 20:30 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Species dispersal through the raw water transfer invasion pathway - Biological Invasions Raw water transfers (RWTs) are a globally occurring freshwater invasion pathway. Recently, the need to better understand the risk posed by RWTs and develop effective pathway management strategies has ...

Species dispersal through the raw water transfer invasion pathway. Biol Invasions 28, 54 (2026). doi.org/10.1007/s105...

13.02.2026 20:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Flow and Phenotype Determine Climbing Success in Juvenile European Eel (Anguilla anguilla): A Test of Two Ramp Designs The European eel (Anguilla anguilla) faces significant challenges during its migratory lifecycle due to anthropogenic habitat fragmentation. Fish passage solutions, such as eel ramps, aim to mitigate...

Flow and Phenotype Determine Climbing Success in Juvenile European Eel (Anguilla anguilla): A Test of Two Ramp Designs. Aquatic Conservation: Marine and Freshwater Ecosystems 36, no. 2: e70325. doi.org/10.1002/aqc.....

12.02.2026 15:55 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Impact of the Highly Invasive Signal Crayfish (Pacifastacus leniusculus) on Freshwater Macroinvertebrate Communities Invasive non-native species threaten freshwater ecosystems, disrupting the functioning and structure of the food chain and potentially leading to biodiversity loss. As omnivores, crayfish can modi...

Impact of the Highly Invasive Signal Crayfish (Pacifastacus leniusculus) on Freshwater Macroinvertebrate Communities. Freshwater Biology 71, no. 2: e70179. doi.org/10.1111/fwb.....

12.02.2026 15:50 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Increased Survival of European Eel (Anguilla anguilla) After Retrofitting a Hydropower Plant Intake The critically endangered European eel (Anguilla anguilla) faces major threats from hydropower turbines during downstream migration, which is a critical phase in the species' life history. To mitigat...

Increased Survival of European Eel (Anguilla anguilla) After Retrofitting a Hydropower Plant Intake. Ecology of Freshwater Fish 35, no. 2: e70039. doi.org/10.1111/eff....

12.02.2026 15:46 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Aerobic scope is sustained through a heatwave in juvenile Atlantic salmon (Salmo salar) Aquatic ectotherms are vulnerable to heatwave-induced physiological stress, which arises from increased energy demands and reduced dissolved oxygen content in warmer waters. Understanding thermal phy...

Aerobic scope is sustained through a heatwave in juvenile Atlantic salmon (Salmo salar). Journal of Fish Biology, 1–13. doi.org/10.1111/jfb....

12.02.2026 15:46 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Rapid increase in abundance and distribution of invasive pink salmon (Oncorhynchus gorbuscha) within a diverse, large Barents Sea catchment Pink salmon originate from the North Pacific area but were introduced into northwest Russia from the late 1950s onwards. Since 2017, the alien species has increased dramatically in abundance and rapi...

Rapid increase in abundance and distribution of invasive pink salmon (Oncorhynchus gorbuscha) within a diverse, large Barents Sea catchment. Journal of Fish Biology, 1–14. doi.org/10.1111/jfb....

12.02.2026 15:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Atlantic salmon (Salmo salar L.) kelt rheotaxis and position choice are influenced by flow velocity and turbulence in a regulated river The migratory behaviour of Atlantic salmon kelts is poorly understood. Due to the Atlantic salmon's considerable socio-economic and ecological importance, their precipitous population abundance decli...

Atlantic salmon (Salmo salar L.) kelt rheotaxis and position choice are influenced by flow velocity and turbulence in a regulated river. Journal of Fish Biology, 1–17. doi.org/10.1111/jfb....

12.02.2026 15:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The lake sink in Atlantic salmon smolt downstream migration The objective was to estimate the movements and survival of Atlantic salmon smolts migrating downstream through a river–lake system consisting of two large, interconnected lakes (areas 58.2 and 13.2 ...

The lake sink in Atlantic salmon smolt downstream migration. Journal of Fish Biology, 1–9. doi.org/10.1111/jfb....

Among 300 radio-tagged smolts, about 90% or more perished during lake migration with loss rates about 3%–4% per kilometre.

12.02.2026 15:31 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Speed Meets Standards: Powering the Wild Salmon Policy with Rapid Status Assessments for Pacific Salmon Conservation Units Pacific salmon face increasing risks from climate change and habitat stressors, with widespread declines already evident. Tracking extinction risk across the 381 Canadian Pacific salmon Conservations ...

Speed Meets Standards: Powering the Wild Salmon Policy with Rapid Status Assessments for Pacific Salmon Conservation Units. Canadian Journal of Fisheries and Aquatic Sciences. Just-IN doi.org/10.1139/cjfa...

12.02.2026 15:28 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Catch-and-release stress in Atlantic salmon shortly before spawning can affect next generation. Offspring show ↓ activity & exploration, & ↑ aggression, all traits that matter during early life. Read here: besjournals.onlinelibrary.wiley.com/doi/10.1002/... Great work from Magadalene Papatheodoulou!

09.02.2026 08:54 β€” πŸ‘ 15    πŸ” 2    πŸ’¬ 2    πŸ“Œ 2

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