Original Articles
19 May 2025
Vol. 84 (2025)
A curious case: caddisfly cases built from brick and sewage overflow microplastics
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All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
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Caddisflies larvae have been constructing cases made from vegetation or sediment grains for millions of years, but in the Anthropocene many alternative building materials have become available for caddisfly larvae. We collected caddisfly cases in three distinctive locations in The Netherlands, differing in degree of urbanization and pollution from sewage overflows. This resulted in a total of 1121 caddisfly cases, of which 311 presumably contained artificial material. Our results show that microplastics (MPs) from sewage overflows, along with littered bricks -whether from masonry waste in urban areas or historic dumping for streambank protection- affect how caddisfly larvae construct their cases. In the most polluted stream, more than half of all cases were found to include artificial material. The inclusion of masonry waste and MPs by the larvae as building and ballast material might alter the specific weight of the cases, which may influence the caddisfly larvae's functioning and behaviour. This is the first time a sewage overflow is directly linked to the inclusion of MPs in cases by caddisfly larvae and actions should be taken to minimize pollution from these overflows. Especially the MP load of sewage overflows may impact both the aquatic and the terrestrial ecosystem, as caddisfly larvae have a key role in the food chain and may transport these plastics into a broad and diverse food web. Sewage overflow events are expected to increase due to climate change, and it is expected that there will be three times as much human-made mass than dry biomass on Earth in 2040. This will, besides many other effects, impact caddisfly case construction in an even more dramatic way than is the case today.
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Anderson PJ, Warrack S, Langen V, Challis JK, Hanson ML, Rennie MD, 2017. Microplastic contamination in Lake Winnipeg, Canada. Environ Pollut 225:223-231. DOI: https://doi.org/10.1016/j.envpol.2017.02.072
Álvarez-Troncoso R, Gutiérrez D, Villar I, Ehlers SM, Soto B, Mato S, Garrido J, 2022. Microplastics in water, sediments and macroinvertebrates in a small river of NW Spain. Limnetica 43:199-212. DOI: https://doi.org/10.21203/rs.3.rs-1256371/v1
Azevedo-Santos VM, Brito MF, Manoel PS, Perroca JF, Rodrigues-Filho JL, Paschoal LR, et al., 2021. Plastic pollution: A focus on freshwater biodiversity. Ambio 50:1313-1324. DOI: https://doi.org/10.1007/s13280-020-01496-5
Balmforth DJ, 1990. The pollution aspects of storm‐sewage overflows. Water Environ J 4:219-226. DOI: https://doi.org/10.1111/j.1747-6593.1990.tb01382.x
Boonstra MA, de Winter W, 2019. [Wat spoelt er aan op rivieroevers? Resultaten van twee jaar afvalmonitoring aan de oevers van de Maas en de Waal].[Article in Dutch]. Schone Rivieren. Available from: https://www.schonerivieren.org/wp-content/uploads/2020/07/Schone_Rivieren_rapportage_2019.pdf
Brown R, 2023. Density of a brick: density ranges for popular brick types. Homedit [Internet]. Accessed: September 30, 2023. Available from https://www.homedit.com/civil-engineering/materials/brick/density-of-a-brick/
Blettler MC, Abrial E, Khan FR, Sivri N, Espinola LA, 2018. Freshwater plastic pollution: Recognizing research biases and identifying knowledge gaps. Water Res 143:416-424. DOI: https://doi.org/10.1016/j.watres.2018.06.015
Chapron G, Levrel H, Meinard Y, Courchamp F, 2018. A final warning to planet Earth. Trends Ecol Evol 33:651-652. DOI: https://doi.org/10.1016/j.tree.2017.12.010
Blettler MC, Mitchell C, 2021. Dangerous traps: macroplastic encounters affecting freshwater and terrestrial wildlife. Sci Total Environ 798:149317. DOI: https://doi.org/10.1016/j.scitotenv.2021.149317
Chen H, Jia Q, Zhao X, Li L, Nie Y, Liu H, Ye J, 2020. The occurrence of microplastics in water bodies in urban agglomerations: Impacts of drainage system overflow in wet weather, catchment land-uses, and environmental management practices. Water Res 183:116073. DOI: https://doi.org/10.1016/j.watres.2020.116073
Crutzen PJ, 2006. The “Anthropocene”, p. 13-18. In: E. Ehlers, T. Krafft (eds.), Earth system science in the Anthropocene. Springer. DOI: https://doi.org/10.1007/3-540-26590-2_3
Crutzen PJ, Stoermer EF, 2021. The ‘Anthropocene’ (2000), p. 19-21. In: S. Benner, G. Lax, P.J. Crutzen, U. Pöschl, J. Lelieveld, H.G. Brauch (eds), Paul J. Crutzen and the Anthropocene: a new epoch in Earth’s History. Springer. DOI: https://doi.org/10.1007/978-3-030-82202-6_2
De Vries WCP, 1994. [Wat is zand?].[Article in Dutch]. Gea. 27(4):125–128.
De Vos M, 2012. [Beekprik en beekdonderpad in de Berkel; grensoverschrijdend of grensoverspoelend?].[Article in Dutch]. Ravon 14:39-43.
De Sá, LC, Oliveira M, Ribeiro F, Rocha TL, Futter MN, 2018. Studies of the effects of microplastics on aquatic organisms: what do we know and where should we focus our efforts in the future? Sci Total Enviro 645:1029-1039. DOI: https://doi.org/10.1016/j.scitotenv.2018.07.207
Di Nunno F, Granata F, Parrino F, Gargano R, de Marinis G, 2021. Microplastics in combined sewer overflows: an experimental study. J Mar Sci Engin 9:1415. DOI: https://doi.org/10.3390/jmse9121415
Díaz IS, 2018. [Incorporación de plásticos en estuches de tricópteros: ¿una trampa evolutiva?].[Thesis in Spanish].Universidade da Coruña.
Dodds GS, Hisaw FL, 1925. Ecological studies on aquatic insects. III. Adaptations of caddisfly larvae to swift streams. Ecology 6:123-137. DOI: https://doi.org/10.2307/1929367
Dris R, Gasperi J, Rocher V, Saad M, Renault N, Tassin B, 2015. Microplastic contamination in an urban area: a case study in Greater Paris. Environ Chem 12:592-599. DOI: https://doi.org/10.1071/EN14167
Duncan EM, Broderick AC, Critchell K, Galloway TS, Hamann M, Limpus CJ, et al., 2021. Plastic pollution and small juvenile marine turtles: a potential evolutionary trap. Front Marine Sci 8:699521. DOI: https://doi.org/10.3389/fmars.2021.699521
Duprat H, Besson C, 1998. The wonderful caddis worm: sculptural work in collaboration with trichoptera. Leonardo 31:173-177. DOI: https://doi.org/10.2307/1576566
Ehlers SM, Manz W, Koop JHE, 2019. Microplastics of different characteristics are incorporated into the larval cases of the freshwater caddisfly Lepidostoma basale. Aquat Biol 28:67-77. DOI: https://doi.org/10.3354/ab00711
Ehlers SM, Al Najjar T, Taupp T, Koop JHE, 2020. PVC and PET microplastics in caddisfly (Lepidostoma basale) cases reduce case stability. Environ Sci Pollut Res 27:22380-22389. DOI: https://doi.org/10.1007/s11356-020-08790-5
Elhacham E, Ben-Uri L, Grozovski J, Bar-On YM, Milo R, 2020. Global human-made mass exceeds all living biomass. Nature 588:442-444. DOI: https://doi.org/10.1038/s41586-020-3010-5
Farrell P, Nelson K, 2013. Trophic level transfer of microplastic: Mytilus edulis (L.) to Carcinus maenas (L.). Environ Pollut 177:1-3. DOI: https://doi.org/10.1016/j.envpol.2013.01.046
Fries E, Dekiff JH, Willmeyer J, Nuelle MT, Ebert M, Remy D, 2013. Identification of polymer types and additives in marine microplastic particles using pyrolysis-GC/MS and scanning electron microscopy. Environ Sci-Proc Imp 15:1949-1956. DOI: https://doi.org/10.1039/c3em00214d
Gallitelli L, Cera A, Cesarini G, Pietrelli L, Scalici M, 2021. Preliminary indoor evidences of microplastic effects on freshwater benthic macroinvertebrates. Sci Rep 11:720. DOI: https://doi.org/10.1038/s41598-020-80606-5
Gaino E, Cianficconi F, Rebora M, Todini B, 2002. Case‐building of some Trichoptera larvae in experimental conditions: selectivity for calcareous and siliceous grains. Ital J Zool 69:141-145. DOI: https://doi.org/10.1080/11250000209356451
Gniadek M, Dąbrowska A, 2019. The marine nano-and microplastics characterisation by SEM-EDX: the potential of the method in comparison with various physical and chemical approaches. Mar Pollut Bull 148:210-216. DOI: https://doi.org/10.1016/j.marpolbul.2019.07.067
Hansell MH, 1968. The house building behaviour of the caddis-fly larva Silo pallipes Fabricius: III. The selection of large particles. Anim Behav 16:578-584. DOI: https://doi.org/10.1016/0003-3472(68)90053-5
Hanna HM, 1961. Selection of materials for case‐building by larvae of caddisflies (Trichoptera). Proc R Entomol Soc A 36):37-47. DOI: https://doi.org/10.1111/j.1365-3032.1961.tb00257.x
Hickin NE, 1967. Caddis larvae: larvae of the British Trichoptera. Fairleigh Dickinson University Press, Vancouver: 476 pp.
Hiemstra AF, Gravendeel B, Schilthuizen M, 2021. Birds using artificial plants as nesting material. Behaviour 159:193-205. DOI: https://doi.org/10.1163/1568539X-bja10115
Hiemstra AF, Rambonnet L, Gravendeel B, Schilthuizen M, 2021. The effects of COVID-19 litter on animal life. Anim Biol 71:215-231. DOI: https://doi.org/10.1163/15707563-bja10052
Hiemstra AF, Van der Velden I, Ciliberti P, D'Alba L, Gravendeel B, Schilthuizen M, 2025. Half a century of caddisfly casings (Trichoptera) with microplastic from natural history collections. Sci Total Environ. 178947 . Online ahead of print. DOI: https://doi.org/10.1016/j.scitotenv.2025.178947
Higler LWG, 2005. [De Nederlandse kokerjufferlarven].[Book in Dutch]. KNNV Uitgeverij, Zeist: 160 pp.
Hofman M, Tolkamp H., 2008. Saneren van overstorten, de basisinspanning voorbij. H2O 9:40-43.
Holzenthal RW, Thomson RE, Ríos-Touma B, 2015. Order trichopteran, p. 965-1002. In: J.H. Thorp, D.C. Rogers (eds.), Thorp and Covich's freshwater invertebrates. Academic Press. DOI: https://doi.org/10.1016/B978-0-12-385026-3.00038-3
Kadir AA, Mohajerani A, 2011. Bricks: an excellent building material for recycling wastes-a review, p. 4-6. Proc. IASTED Int Conf on Environmental Management and Engineering, Calgary. DOI: https://doi.org/10.2316/P.2011.736-029
Kroodsma H, De Vos M, 2005. [Prikken, ammocoeten en ander gespuis, beekprikken in de Winterswijkse beken; verspreiding en beheer].[Article in Dutch]. Ravon 8:1-5.
Lewis SL, Maslin MA, 2015. Defining the anthropocene. Nature 519:171-180. DOI: https://doi.org/10.1038/nature14258
Limm MP, Power ME, 2011. The caddisfly Dicosmoecus gilvipes: making a case for a functional role. J N Am Benthol Soc 30:485-492. DOI: https://doi.org/10.1899/10-028.1
Lopes de Leão R, 1988. [Zwaar zand].[Article in Dutch]. Grondboor and Hamer 42:84-87.
López-Rojo N, Pérez J, Alonso A, Correa-Araneda F, Boyero L, 2020. Microplastics have lethal and sublethal effects on stream invertebrates and affect stream ecosystem functioning. Environ Pollut 259:113898. DOI: https://doi.org/10.1016/j.envpol.2019.113898
Moore CJ, 2008. Synthetic polymers in the marine environment: a rapidly increasing, long-term threat. Environ Res 108:131-139. DOI: https://doi.org/10.1016/j.envres.2008.07.025
Otto C, Svensson BS, 1980. The significance of case material selection for the survival of caddis larvae. J Anim Ecol 49:855-865. DOI: https://doi.org/10.2307/4231
Quadroni S, Cesarini G, De Santis V, and Galafassi S, 2024. Interconnected impacts of water resource management and climate change on microplastic pollution and riverine biocoenosis: A review by freshwater ecologists. J Environ Manage 372:123363. DOI: https://doi.org/10.1016/j.jenvman.2024.123363
Rinne A, Wiberg-Larsen P, 2016. Trichoptera larvae of Finland. Trificon, Tampere: 152 pp.
Ripple WJ, Wolf C, Newsome TM, Galetti M, Alamgir M, Crist E, et al., 2017. World scientists’ warning to humanity: a second notice. BioScience 67:1026-1028. DOI: https://doi.org/10.1093/biosci/bix125
Robertson BA, Chalfoun AD, 2016. Evolutionary traps as keys to understanding behavioral maladapation. Curr Opin Behav Sci 12:12-17. DOI: https://doi.org/10.1016/j.cobeha.2016.08.007
Rochman CM, 2015. The complex mixture, fate and toxicity of chemicals associated with plastic debris in the marine environment, p. 117-140. In: Bergmann M, Gutow L, Klages M, (eds.), Marine anthropogenic litter. Springer. DOI: https://doi.org/10.1007/978-3-319-16510-3_5
Setälä O, Fleming-Lehtinen V, Lehtiniemi M, 2014. Ingestion and transfer of microplastics in the planktonic food web. Environ Pollut 185:77-83. DOI: https://doi.org/10.1016/j.envpol.2013.10.013
Spikmans F, 2013. [Nieuwe kansen voor beekprik in Reusel?].[Article in Dutch]. Schubben and Slijm 5:6-7
Su L, Xue Y, Li L, Yang D, Kolandhasamy P, Li D, Shi H, 2016. Microplastics in Taihu lake, China. Environ Pollut 216:711-719. DOI: https://doi.org/10.1016/j.envpol.2016.06.036
Tempelman D, Lock K, Sanabria MJ, Zuyderduyn C, Koese B, 2022. [De schietmotten van de Benelux (Trichoptera)].[Book in Dutch]. EIS, Leiden: 408 pp.
Environment Agency, n.d. Event Duration Monitoring - Storm Overflows - Annual Returns. Accessed: 21 December 2024. Available from: https://data.gov.uk/dataset/19f6064d-7356-466f-844e-d20ea10ae9fd/event-duration-monitoring-storm-overflows-annual-returns
Thorp JH, Rogers DC, 2011. Chapter 25 - Caddisflies: insect order trichoptera, p. 219-227. In: J.H. Thorp, D.C. Rogers (eds.), Field guide to freshwater invertebrates of North America. Academic Press. DOI: https://doi.org/10.1016/B978-0-12-381426-5.00025-9
Tibbetts J, Krause S, Lynch I, Smith GHS, 2018. Abundance, distribution, and drivers of microplastic contamination in urban river environments. Water 10:1597. DOI: https://doi.org/10.3390/w10111597
Treilles R, Gasperi J, Gallard A, Saad M, Dris R, Partibane C, et al., 2021. Microplastics and microfibers in urban runoff from a suburban catchment of Greater Paris. Environ Pollut 287:117352. DOI: https://doi.org/10.1016/j.envpol.2021.117352
van Emmerik T, Schwarz A, 2020. Plastic debris in rivers. Wires Water 7:e1398. DOI: https://doi.org/10.1002/wat2.1398
van den Herik K, Hoogveld J, 1999. [Beken en beekherstel langs de zandmaas].[Article in Dutch]. Natuurhistorisch Maandblad 88:141-147.
Valentine K, Cross R, Cox R, Woodmancy G, Boxall ABA, 2022. Caddisfly larvae are a driver of plastic litter breakdown and microplastic formation in freshwater environments. Environ Toxicol Chem 41:3058–3069. DOI: https://doi.org/10.1002/etc.5496
Venditti B, 2021. Visualizing the Accumulation of human-made mass on earth. Visual Capitalist [Internet]. Accessed: 1 October 2023. Available from: https://www.visualcapitalist.com/visualizing-the-accumulation-of-human-made-mass-on-earth/
Wardrop P, Shimeta J, Nugegoda D, Morrison PD, Miranda A, Tang M, Clarke BO, 2016. Chemical pollutants sorbed to ingested microbeads from personal care products accumulate in fish. Environ Sci Technol 50:4037-4044. DOI: https://doi.org/10.1021/acs.est.5b06280
Waringer J, Graf W, 2011. [Atlas der mitteleuropäischen Köcherfliegenlarven].[Book in German]. Erik Mauch Verlag, Dinkelscherben: 468 pp.
Wang Z, Zhang Y, Kang S, Yang L, Shi H, Tripathee L, Gao T, 2021. Research progresses of microplastic pollution in freshwater systems. Sci Total Environ 795:148888. DOI: https://doi.org/10.1016/j.scitotenv.2021.148888
Wiggins GB, 2004. Caddisflies: the underwater architects. University of Toronto Press, Toronto: 304 pp. DOI: https://doi.org/10.3138/9781442623590
Windsor FM, Tilley RM, Tyler CR, Ormerod SJ, 2019. Microplastic ingestion by riverine macroinvertebrates. Science of the Total Environment. 646:68-74. DOI: https://doi.org/10.1016/j.scitotenv.2018.07.271
Winkler A, Antonioli D, Masseroni A, Chiarcos R, Laus M, Tremolada P, 2022. Following the fate of microplastic in four abiotic and biotic matrices along the Ticino River (North Italy). Sci Total Environ 823:153638. DOI: https://doi.org/10.1016/j.scitotenv.2022.153638
Zhang K, Hamidian AH, Tubić A, Zhang Y, Fang JK, Wu C, Lam PK, 2021. Understanding plastic degradation and microplastic formation in the environment: A review. Environ Pollut 274:116554. DOI: https://doi.org/10.1016/j.envpol.2021.116554
Zhou Y, Li Y, Yan Z, Wang H, Chen H, Zhao S, et al., 2023. Microplastics discharged from urban drainage system: Prominent contribution of sewer overflow pollution. Water Res 236:119976. DOI: https://doi.org/10.1016/j.watres.2023.119976
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Michela Rogora, CNR-IRSA Water Research Institute, Verbania-Pallanza, ItalyHow to Cite
“A Curious Case: Caddisfly Cases Built from Brick and Sewage Overflow Microplastics”. 2025. Journal of Limnology 84 (May). https://doi.org/10.4081/jlimnol.2025.2212.
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