Institut für
FI Fischereiökologie
Publikationen als Thünen-Mitarbeiter
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Freese M, Marohn L, Ferrer L, Pohlmann J-D, Wysujack K, Blancke T, Hanel R (2025) Details on the transport of European eel larvae through the Strait of Gibraltar into the Mediterranean Sea. Sci Rep 15:1006, DOI:10.1038/s41598-024-82929-z
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Freese M, Blancke T, Marohn L, Pohlmann J-D, Sundin J, Wysujack K, Hanel R (2025) Genetically confirmed first records of an egg and a juvenile roundscale spearfish, Tetrapturus georgii. J Fish Biol: Online First, Jan 2025, DOI:10.1111/jfb.16043
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Sundin J, Freese M, Otten E, Marohn L, Blancke T, Hanel R (2024) First description of post-flexion larvae of the West Atlantic trumpetfish, Aulostomus maculatus. J Marine Biol Ass UK 104:e101, DOI:10.1017/S002531542400081X
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Sundin J, Freese M, Marohn L, Blancke T, Hanel R (2024) Occurrence of the pugnose pipefish Bryx dunckeri in the Sargasso Sea. J Fish Biol 104(4):1231-1236, DOI:10.1111/jfb.15642
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Höhne L, Briand C, Freese M, Marohn L, Pohlmann J-D, Van der Hammen T, Hanel R (2024) Risks of regionalized stock assessments for widely distributed species like the panmictic European eel. ICES J Mar Sci 81(6):1084-1095, DOI:10.1093/icesjms/fsae069
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Hanel R, Freese M, Marohn L, Auel H, Blazina M, Claver C, Couret M, Diaz-Pérez J, Ferrer L, Konvicková Z, Major W, Pohlmann J-D, Rommel ACM, Williams J, Wysujack K (2023) Assessing oceanic impacts on arrival and transport of European eel larvae, Cruise No. M185, 29.10.2022 - 26.11.2022, Hamburg (Germany) - Lisbon (Portugal) [online]. Bonn, 52 p, Meteor-Berichte (M185), zu finden in <https://doi.org/10.48433/cr_m185> [zitiert am 31.08.2023], DOI:10.48433/cr_m185
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Marohn L, Höhne L, Freese M, Pohlmann J-D, Hanel R (2023) Blankaalabwanderung in der niedersächsischen Ems. Bremerhaven: Thünen-Institut für Fischereiökologie, 1 p, Project Brief Thünen Inst 2023/43, DOI:10.3220/PB1697190854000
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Höhne L, Freese M, Marohn L, Pohlmann J-D, Hanel R (2023) Blankaalabwanderung in der niedersächsischen Ems: Quantitative Untersuchungen zur Verbesserung von Management, Bewirtschaftung und Schutz des Europäischen Aals (BALANCE). Braunschweig: Johann Heinrich von Thünen-Institut, 47 p
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Hanel R, Schlundt M, Freese M, Marohn L, Pohlmann J-D, Wysujack K (2023) Continuous thermosalinograph oceanography along RV Meteor cruise track M185 [Datenpublikation] [online]. Bremerhaven: PANGAEA, zu finden in <https://doi.pangaea.de/10.1594/PANGAEA.960971> [zitiert am 31.08.2023], DOI:10.1594/PANGAEA.960971
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Höhne L, Freese M, Pohlmann J-D, Diekmann M, Fladung E, Huisman JBJ, Hanel R, Marohn L (2023) Overestimating management progress - modelled vs. monitored silver eel escapement in a North Sea draining river. ICES J Mar Sci 80(7):1936-1948, DOI:10.1093/icesjms/fsad122
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Durif CM, Pohlmann J-D, Amilhat E, Bašic T, Bdioui M, Beaulaton L, Belpaire C, Boulenger C, Brämick U, Briand C, Camara K, Catarino R, Ciccotti E, Diaz E, Didrikas T, Domingos I, Drouineau H, Freese M, Hanel R, Marohn L, et al (2023) Report of the Joint EIFAAC/ICES/GFCM Working Group on Eels (WGEEL). Copenhagen: ICES, iv, 165 p, ICES Sci Rep 5(98), DOI:10.17895/ices.pub.24420868
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Marohn L, Höhne L, Freese M, Pohlmann J-D, Hanel R (2023) Silver eel escapement in the River Ems. Bremerhaven: Thünen Institute of Fisheries Ecology, 1 p, Project Brief Thünen Inst 2023/43a, DOI:10.3220/PB1697191686000
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Pohlmann J-D, Pelster B, Wysujack K, Marohn L, Freese M, Lindemann C, Hanel R (2023) Temperature and pressure dependency of oxygen consumption during long-term sustained swimming of European eels. J Exp Biol 226(17):jeb246095, DOI:10.1242/jeb.246095
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Merk B, Höhne L, Freese M, Marohn L, Hanel R, Pohlmann J-D (2023) To hear or not to hear: selective tidal stream transport can interfere with the detectability of migrating silver eels in a tidal river. Animal Biotelemetry 11:44, DOI:10.1186/s40317-023-00353-y
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Wysujack K, Marohn L, Lindemann C, Illing B, Freese M, Pohlmann J-D, Reiser S, Debes PV, Meskendahl L, Pelster B, Hanel R (2022) A novel hyperbaric swimming respirometer allows the simulation of varying swimming depths in fish respirometry studies. Comp Biochem Physiol A Mol Integr Physiol 264:111117, DOI:10.1016/j.cbpa.2021.111117
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Hanel R, Lindemann C, Freese M, Marohn L, Pohlmann J-D, Wysujack K (2022) Die Schwimm-Physiologie des Europäischen Aals unter regelbaren Überdruckbedingungen (SPEER). Bremerhaven: Thünen-Institut für Fischereiökologie, 1 p, Project Brief Thünen Inst 2022/01, DOI:10.3220/PB1641287451000
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Hanel R, Marohn L, Westerberg H (2022) No new evidence for an Atlantic eels spawning area outside the Sargasso Sea. Sci Rep 12:11778, DOI:10.1038/s41598-022-14882-8
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Hanel R, Lindemann C, Freese M, Marohn L, Pohlmann J-D, Wysujack K (2022) The swimming physiology of the European eel under regulable hyperbaric conditions (SPEER). Bremerhaven: Thünen Institute of Fisheries Ecology, 1 p, Project Brief Thünen Inst 2022/01a, DOI:10.3220/PB1641288045000
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Marohn L, Schaber M, Freese M, Pohlmann J-D, Wysujack K, Czudaj S, Blancke T, Hanel R (2021) Distribution and diel vertical migration of mesopelagic fishes in the Southern Sargasso Sea - observations through hydroacoustics and stratified catches. Mar Biodiv 51:87, DOI:10.1007/s12526-021-01216-6
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Pohlmann J-D, Bryhn A, Sapounidis A, Svagzdys A, Taylor A, El Ganainy A, Fernandez-Delgado C, Durif CM, Briand C, Leone C, O’Leary C, Boulenger C, Belpaire C, Evans D, Hala E, Papnikolaou E, Ciccotti E, Marohn L, Freese M, Hanel R, et al (2021) Joint EIFAAC/ICES/GFCM Working Group on Eels (WGEEL). Copenhagen: ICES, 205 p, ICES Sci Rep 3(85), DOI:10.17895/ices.pub.8143
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Gerson M, Dierking J, Marohn L, Thiel R, Klügel A, Sarrazin V (2021) Partial migration of a maraena whitefish Coregonus maraena population from the River Elbe, Germany. Endang Species Res 44:263-275, DOI:10.3354/esr01102
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Lupše N, Cortesi F, Freese M, Marohn L, Pohlmann J-D, Wysujack K, Hanel R, Musilova Z (2021) Visual gene expression reveals a cone-to-rod developmental progression in deep-sea fishes. Mol Biol Evol 38(12):5664-5677, DOI:10.1093/molbev/msab281
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Schneebauer G, Lindemann C, Drechsel V, Marohn L, Wysujack K, Santidrian E, Dirks R, Hanel R, Pelster B (2020) Swimming under elevated hydrostatic pressure increases glycolytic activity in gas gland cells of the European eel. PLoS One 15(9):e0239627, DOI:10.1371/journal.pone.0239627
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Freese M, Yokota Rizzo L, Pohlmann J-D, Marohn L, Witten PE, Gremse F, Rütten S, Güvener N, Michael S, Wysujack K, Lammers T, Kiessling F, Hollert H, Hanel R, Brinkmann M (2019) Bone resorption and body reorganization during maturation induce maternal transfer of toxic metals in anguillid eels. Proc Nat Acad Sci USA 116(23):11339-11344, DOI:10.1073/pnas.1817738116
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Lüskow F, Neitzel P, Miller MJ, Marohn L, Wysujack K, Freese M, Pohlmann J-D, Hanel R (2019) Distribution and abundance of net-captured calycophoran siphonophores and other gelatinous zooplankton in the Sargasso Sea European eel spawning area. Mar Biodiv 49(5):2333-2349, DOI:10.1007/s12526-019-00971-x
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Stransky C, Sala A, Abella JA, Bastardie F, Borges L, Casey J, Catchpole T, Damalas D, Daskalov G, Döring R, Gascuel D, Grati F, Ibaibarriaga L, Jung A, Kraak SBM, Berkenhagen J, Freese M, Lasner T, Marohn L, Ulleweit J, et al (2019) Evaluation of DCF work plans 2020-2021 and data transmission issues (STECF-19-18). Luxembourg: Publications Office of the European Union, 52 p, JRC Sci Pol Rep, DOI:10.2760/049734
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Miller MJ, Marohn L, Wysujack K, Bonhommeau S, Kuroki M, Freese M, Pohlmann J-D, Watanabe S, Blancke T, Weist P, Castonguay M, Westerberg H, Tsukamoto K, Hanel R (2019) Larval size-distributions of Ariosoma balearicum cryptic species during the March-April season in the Sargasso Sea Subtropical Convergence Zone. Environ Biol Fishes 102(10):1231–1252, DOI:10.1007/s10641-019-00900-8
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Miller MJ, Marohn L, Wysujack K, Freese M, Pohlmann J-D, Westerberg H, Tsukamoto K, Hanel R (2019) Morphology and gut contents of anguillid and marine eel larvae in the Sargasso Sea. Zool Anz 279:138-151, DOI:10.1016/j.jcz.2019.01.008
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Hanel R, Briand C, Diaz E, Döring R, Sapounidis A, Warmerdam W, Andres M, Freese M, Marcelis A, Marohn L, Pohlmann J-D, Scharrenburg M van, Waidmann N, Walstra J, Werkman M, Wilde Jde, Wysujack K (2019) Research for PECH Committee - Environmental, social and economic sustainability of European eel management. Brussels: European Parliament Policy Department for Structural and Cohesion Policies, 187 p, DOI:10.2861/033620
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Miller MJ, Westerberg H, Sparholt H, Wysujack K, Sorensen SR, Marohn L, Jacobsen MW, Freese M, Ayala DJ, Pohlmann J-D, Svendsen JC, Watanabe S, Andersen L, Moller PR, Tsukamoto K, Munk P, Hanel R (2019) Spawning by the European eel across 2000 km of the Sargasso Sea. Biol Lett 15:20180835, DOI:10.1098/rsbl.2018.0835
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Stransky C, Doerner H, Armesto A, Bell M, Berkenhagen J, Davidjuka I, Gambino M, Jakovleva I, Koutrakis E, Leblond E, Liontakis A, Marohn L, McCormick H, Nermer T, Nicheva S, Nord J, Panayotova M, Raid T, Ulleweit J, Döring R, et al (2018) Evaluation of work plans & data transmission failures (STECF-18-18). Luxembourg: Publications Office of the European Union, 32 p, JRC Sci Pol Rep, DOI:10.2760/031311
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Westerberg H, Miller MJ, Wysujack K, Marohn L, Freese M, Pohlmann J-D, Watanabe S, Tsukamoto K, Hanel R (2018) Larval abundance across the European eel spawning area: An analysis of recent and historic data. Fish Fisheries 19(5):890-902, DOI:10.1111/faf.12298
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Westerberg H, Pacariz S, Marohn L, Fagerström V, Wysujack K, Miller MJ, Freese M, Pohlmann J-D, Hanel R (2018) Modeling the drift of European (Anguilla anguilla) and American (Anguilla rostrata) eel larvae during the year of spawning. Can J Fish Aquat Sci 75(2):224-234, DOI:10.1139/cjfas-2016-0256
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Stransky C, Gibin M, Doerner H, Berkenhagen J, Marohn L, Ulleweit J, et al (2017) Evaluation of DCF National Work Plan amendments for 2018/19 (STECF-17-19). Luxembourg: Commission of the European Communities, 39 p, JRC Sci Pol Rep, DOI:10.2760/217016
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Kuroki M, Marohn L, Wysujack K, Miller MJ, Tsukamoto K, Hanel R (2017) Hatching time and larval growth of Atlantic eels in the Sargasso Sea. Mar Biol 164:118, DOI:10.1007/s00227-017-3150-9
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Freese M, Sühring R, Marohn L, Pohlmann J-D, Wolschke H, Byer J, Alaee M, Ebinghaus R, Hanel R (2017) Maternal transfer of dioxin-like compounds in artificially matured European eels. Environ Pollut 227:348-356, DOI:10.1016/j.envpol.2017.04.096
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Marohn L, Hanel R (2017) Untersuchungen zur Aalvermehrung am Thünen-Institut - ein Statusbericht. Mitt Landesforschungsanst Landwirtsch Fischerei Mecklenburg Vorpommern 58:38-41
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Sühring R, Ortiz X, Pena Abaurrea M, Jobst KJ, Freese M, Pohlmann J-D, Marohn L, Ebinghaus R, Backus SM, Hanel R, Reiner EJ (2016) Evidence for high concentrations and maternal transfer of substituted diphenylamines in European eels analyzed by GXxGX-ToF MS and GC-FTICR-MS. Environ Sci Technol 50(23):12678-12685, DOI:10.1021/acs.est.6b04382
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Hüssy K, Gröger JP, Heidemann F, Hinrichsen HH, Marohn L (2016) Food for thought : slave to the rhythm: seasonal signals in otolith microchemistry reveal age of eastern Baltic cod (Gadus morhua). ICES J Mar Sci 73(4):1019-1032, DOI:10.1093/icesjms/fsv247
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Marohn L, Hanel R (2016) Untersuchungen zur Aalvermehrung am Thünen-Institut. Fischer Teichwirt 67(12):444-445
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Sühring R, Freese M, Schneider M, Schubert S, Pohlmann J-D, Alaee M, Wolschke H, Hanel R, Ebinghaus R, Marohn L (2015) Maternal transfer of emerging brominated and chlorinated flame retardants in European eels. Sci Total Environ 530-531:209-218, DOI:10.1016/j.scitotenv.2015.05.094
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Marohn L, Prigge E, Hanel R (2014) Escapement success of silver eels from a German river system is low compared to management-based estimates. Freshwater Biol 59(1):64-72, DOI:10.1111/fwb.12246
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Marohn L, Prigge E, Hanel R (2014) Introduced American eels Anguilla rostrata in European waters: life-history traits in a non-native environment. J Fish Biol 84(6):1740-1747, DOI:10.1111/jfb.12394
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Baltazar-Soares M, Biastoch A, Harrod C, Hanel R, Marohn L, Prigge E, Evans D, Bodles K, Behrens E, Böning CW, Eizaguirre C (2014) Recruitment collapse and population structure of the European eel shaped by local ocean current dynamics. Current Biol 24:104-108, doi:10.1016/j.cub.2013.11.031
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Marohn L, Jakob E, Hanel R (2013) Implications of facultative catadromy in Anguilla anguilla : does individual migratory behaviour influence eel spawner quality? J Sea Res 77:100-106, DOI:10.1016/j.seares.2012.10.006
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Magath V, Marohn L, Fietzke J, Frische M, Thiel R, Dierking J (2013) Migration behaviour of twaite shad Alosa fallax assessed by otolith Sr:Ca and Ba:Ca profiles. J Fish Biol 82(6):1871-1887, DOI:10.1111/jfb.12115
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Prigge E, Marohn L, Oeberst R, Hanel R (2013) Model prediction vs. reality – testing the predictions of a European eel (Anguilla anguilla) stock dynamics model against the in situ observation of silver eel escapement in compliance with the European eel regulation. ICES J Mar Sci 70(2):309-318, doi:10.1093/icesjms/fss188
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Prigge E, Marohn L, Hanel R (2013) Tracking the migratory success of stocked European eels Anguilla anguilla in the Baltic Sea. J Fish Biol 82(2):686-699, DOI:10.1111/jfb.12032
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Bischoff AA, Hielscher NN, Marohn L, Waller U (2012) Cultivation of the European brown shrimp (Crangon crangon) to evaluate its potential as secondary organisms for integrate aquaculture systems fed with solid waste. In: Waste reduction in aquaculture by culturing detritivorous organisms : small steps towards sustainable aquaculture practices / Adrian Alfred Bischoff. Saarbrücken: Südwestdeutscher Verlag für Hochschulschriften, pp 115-135
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Heidemann F, Marohn L, Hinrichsen HH, Huwer B, Hüssy K, Klügel A, Böttcher U, Hanel R (2012) Suitability of otolith microchemistry for stock separation of Baltic cod. Mar Ecol Progr Ser 465:217-226, doi:10.3354/meps09922
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Schaber M, Marohn L, Petereit C, Schröder J, Zumholz K, Hanel R (2011) Newcomers in the Baltic Sea: An attempt to trace back origins and whereabouts of thicklip grey mullet Chelon labrosus . Fisheries Sci 77(5):757-764, DOI:10.1007/s12562-011-0384-1
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Marohn L, Hilge V, Zumholz K, Klügel A, Anders H, Hanel R (2011) Temperature dependency of element incorporation into European eel (Anguilla anguilla) otoliths. Anal Bioanal Chem 399(6):2175-2184, DOI:10.1007/s00216-010-4412-2
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Hanel R, Jakob E, Marohn L, Zumholz K, Hinrichsen HH (2009) Coupling of migration behaviour and individual fitness in European Eel - the effects of ambient salinity on eel spawner quality. 2 p
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Marohn L, Prigge E, Zumholz K, Klügel A, Anders H, Hanel R (2009) Dietary effects on multi-element composition of European eel (Anguilla anguilla) otoliths. Mar Biol 156(5):927-933, DOI:10.1007/s00227-009-1138-9
