About me
I am interested in phenotypic diversity and population dynamics of fishes, generally in relation to habitat selection, foraging and adaptation.
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Atavism in the threespine stickleback, Gasterosteus aculeatus: four dorsal spines. * = additional dorsal spine.
Breeding tubercles of a nase, Chondrostoma. Skin is stained blue, the tubercles pink.
Schindleria, Infant fishes, are extremely progenetic gobiid fishes with a very fast generation time, up to nine generations the year. Different coloration is due to different preservation. Scale bar = 1 mm.
Osteological atlas of Quietula guaymasiae, a gobiid fish from the Eastern Central Pacific. Fig. 32: Jaws, suspensory and opercular series in lateral view. Scale bar = 1 mm.
Innervation of the free neuromasts of Lythrypnus dalli, a gobiid fish from the Eastern Central Pacific. Scale bar = 5 mm.
Publication list
Showing entries 1 - 20 out of 125
2025
Ahnelt, H. (2025). The first documented record of the Critically Endangered adder Vipera berus (Linnaeus, 1758) (Serpentes, Viperidae) from the German North Frisian Islands (North Sea) and the northernmost record in Germany. Check List: the journal of biodiversity data, 21(2). https://doi.org/10.15560/21.2.293
Esmaeili, H. R., Echreshavi, S., Teimori, A., & Ahnelt, H. (2025). Comparative ultra-microscopy unraveling the regressive evolutionary signals: Insights from adaptation to extreme environment. Zoologischer Anzeiger, 314, 83-99. https://doi.org/10.1016/j.jcz.2024.12.004
2024
Ahnelt, H., & Sudasinghe, H. (2024). A collection of fishes from the enigmatic type locality of fish species described by Georges Cuvier and by Achille Valenciennes, the hot springs of Kanniya at Trincomalee, Sri Lanka. Cybium: revue internationale d'ichtyologie, 48(4), 273-279. https://doi.org/10.26028/cybium/2024-037
Ahnelt, H., & Bradić-Milinović, K. (2024). A Unique and Species-Rich Assemblage of Freshwater Glassfishes (Teleostei: Ambassidae: Dapalis) from the lower Oligocene of the Central Paratethys with the Description of Four New Species. Taxonomy, 4(4), 805-849. https://doi.org/10.3390/taxonomy4040044
Ahnelt, H., Bradić-Milinović, K., & Schwarzhans, W. (2024). Dapalis pauciserratus, a new species of freshwater glassfishes (Teleostei, Ambassidae) from the Early Oligocene of the Central Paratethys: Dapalis pauciserratus, une nouvelle espèce de poissons de verre d’eau douce (Teleostei, Ambassidae) de l’Oligocène inférieur de la Paratéthys Central. Cybium: revue internationale d'ichtyologie, 48(3), 195–209. https://doi.org/10.26028/cybium/2024-006
Ahnelt, H., Nocita, A., & Dulcic, J. (2024). Northernmost historical records of the Atlantic pomfret, Brama brama (Bonnaterre, 1788) (Teleostei: Bramidae, Braminae) in the Mediterranean Sea and the variability of adult morphology. Cybium: revue internationale d'ichtyologie, 48(3), 255–263.
Ahnelt, H., Macek, O., & Robitzch, V. (2024). Schindleria nana, a new extremely progenetic gobiid fish species (Teleostei: Gobiiformes: Gobiidae) from Lizard Island, Great Barrier Reef, Australia. Journal of Vertebrate Biology, 73(23112), 1-17. Article 23112. https://doi.org/10.25225/jvb.23112
Odongo, V., Asmus, H., Ahnelt, H., Boersma, M., Rick, J., Wiltshire, K. H., & Horn, S. (2024). Seasonal variations of a coastal fish community related to environmental parameters in the Sylt-Rømø Bight, southeastern North Sea. Estuarine, Coastal and Shelf Science, 300.
Robitzch, V., Landaeta, M., & Ahnelt, H. (2024). A new species of long dorsal-fin Schindleria (Teleostei: Gobiiformes: Gobiidae) from Rapa Nui (Chile). Cybium: revue internationale d'ichtyologie, 48(1), 35-44. https://doi.org/10.26028/cybium/2023-040
Smith-Vaniz, W. F., Klein, J. S., & Ahnelt, H. (2024). Hyperostosis in fishes: an update with new species records. Journal of Morphology, 285(11), Article e21782. https://doi.org/10.1002/jmor.21782
Wibowo, A., Haryono, H., Kurinawan, K., Prakoso, V. A., Dahruddin, H., Surbani, I. L., Muslimin, B., Jaya, Y. Y., Sudarsono, S., Stuart, I. G., Ahnelt, H., Funge-Smith, S., Vasemägi, A., & Hubert, N. (2024). Genetic and morphological evidence of a single species of bronze featherback (Notopterus notopterus) in Sundaland. Global Ecology and Conservation, 49, 1-14. Article e02786. https://doi.org/10.1016/j.gecco.2023.e02786
2023
Ahnelt, H., Macek, O., & Robitzch, V. (2023). A new species of Schindleria (Teleostei: Gobiiformes: Gobiidae) from the Red Sea (Saudi Arabia) with a specialized caudal-fin complex. Vertebrate Zoology, 73, 313–323. https://doi.org/10.3897/vz.73.e97515
Ahnelt, H., Leister, T., Kruckenhauser, L., Duda, M., Carosi, A., & Lorenzoni, M. (2023). Site-specific attachment of Anodonta anatina (Bivalvia: Unionidae) glochidia on two new fish hosts introduced in Lake Trasimeno (Italy). Knowledge and Management of Aquatic Ecosystems, 424, Article 9. https://doi.org/10.1051/kmae/2023006
Schröder, M., Windhager, S., Schaefer, K., & Ahnelt, H. (2023). Adaptability of Bony Armor Elements of the Threespine Stickleback Gasterosteus aculeatus (Teleostei: Gasterosteidae): Ecological and Evolutionary Insights from Symmetry Analyses. Symmetry, 15(4), Article 811. https://doi.org/10.3390/sym15040811
Wibowo, A., Haryono, H., Kurinawan, K., Prakoso, V. A., Dahruddin, H., Surbani, I. L., Jaya, J. Y., Sudarsono, S., Rochman, F., Muslimin, B., Sukmono, T., Rourke, M. L., Ahnelt, H., Funge-Smith, S., & Hubert, N. (2023). Rediscovery of the giant featherback Chitala lopis (Notopteridae) in its type locality resolves decades of taxonomic confusion. Endangered Species research, 52, 285-301. https://doi.org/10.3354/esr01281
2022
Ahnelt, H., Robitzch, V., & Abu El-Regal, M. (2022). A new species of toothless, short dorsal-fin Schindleria (Gobiiformes: Gobiidae) from the Red Sea (Egypt). Vertebrate Zoology, 72, 551-559. https://doi.org/10.3897/vz.72.e79401
Wanzenböck, S., Fuxjäger, L., Ringler, E., Ahnelt, H., & Shama, L. N. S. (2022). Temperature-dependent reproductive success of stickleback lateral plate morphs: implications for population polymorphism and range shifts under ocean warming. Frontiers in Marine Science, 9, Article 759450. https://doi.org/10.3389/fmars.2022.759450
2021
Ahnelt, H., Tougard, C., & Kovacic, M. (2021). Designation of a lectotype for the Canestrini’s Goby, Gobius canestrinii Ninni, 1883 (Teleostei, Gobiiformes, Gobiidae, Gobionellinae). Acta Adriatica, 62(1), 45–48. https://doi.org/10.32582/AA.62.1.2
Ahnelt, H., Ramler, D., Madsen, M. Ø., Jensen, L. F., & Windhager, S. (2021). Diversity and sexual dimorphism in the head lateral line system in North Sea populations of threespine sticklebacks, Gasterosteus aculeatus (Teleostei: Gasterosteidae). Zoomorphology, 140(1), 103 - 117. https://doi.org/10.1007/s00435-020-00513-1
Ahnelt, H., Pleitner, S., & Schulz, B. (2021). First records of the Oak bush-cricket Meconema thalassinum on three German North Sea islands (Orthoptera: Ensifera, Tettigoniidae). Fragmenta Entomologica, 53(1), 81-84 . https://doi.org/10.13133/2284-4880/455