All Stories

  1. First documentation of gravid Alopias vulpinus (Bonnaterre, 1788) in the southeastern Pacific: Evidence for a potential maternal corridor

    Article • Journal of Fish Biology, September 2025, Wiley

    Mr Nicolas R Ehemann

  2. Peruvian Chondrichthyes biodiversity, marketing and conservation: a synthesis of current knowledge

    Article • Journal of Fish Biology, September 2025, Wiley

    Mr Nicolas R Ehemann

  3. Meristic co‐evolution and genomic co‐localization of lateral line scales and vertebrae in Central American cichlid fishes

    Article • Ecology and Evolution, September 2024, Wiley

    Mr Nicolas R Ehemann

  4. Barcode Reveals Hidden Diversity and Cryptic Speciation among Butterfly Rays Distributed in the Americas

    Article • Taxonomy, July 2024, MDPI AG

    Dr Jose De La Cruz-Agüero, Mr Nicolas R Ehemann, Dr. Francisco J. Garcia-Rodriguez

  5. Alike but genetically divergent: The resurrection of Urotrygon asterias (Jordan & Gilbert, 1883) from its closest relatives, the Munda and the Blotched stingray

    Article • Journal of Fish Biology, July 2024, Wiley

    Dr Jose De La Cruz-Agüero, Mr Nicolas R Ehemann, Dr. Francisco J. Garcia-Rodriguez

  6. Morphological description of spontaneous pelvic fin loss in a neotropical cichlid fish

    Article • Journal of Morphology, December 2023, Wiley

    Mr Nicolas R Ehemann

  7. Echinorhinus brucus (Bonnaterre, 1788) in the Caribbean Sea: A recurrent visitor, or are the artisanal fisheries exploiting deeper waters?

    Article • Journal of Fish Biology, November 2023, Wiley

    Mr Nicolas R Ehemann

  8. Trophic assessment of three sympatric batoid species in the Southern Gulf of California

    Article • PeerJ, September 2023, PeerJ

    Mr Nicolas R Ehemann

  9. Manta and devil ray species occurrence and distribution in Venezuela, assessed through fishery landings and citizen science data

    Article • Journal of Fish Biology, June 2022, Wiley

    Nicole Pelletier, Mr Nicolas R Ehemann

  10. Urotrygon rogersi (Myliobatiformes: Urotrygonidae) from the subtropical, provides new biological, genetic, taxonomic, and distribution data for the genus Urotrygon

    Article • Regional Studies in Marine Science, March 2022, Elsevier

    Dr Jose De La Cruz-Agüero, Mr Nicolas R Ehemann, Dr. Francisco J. Garcia-Rodriguez

  11. Morphological abnormalities in seven American round ray specimens: A review of America's batomorph anomalies

    Article • Journal of Fish Diseases, December 2021, Wiley

    Dr Jose De La Cruz-Agüero, Mr Nicolas R Ehemann, Dr. Francisco J. Garcia-Rodriguez

  12. The Espiritu Santo Island as a critical area for conserving batoid assemblage species within the Gulf of California

    Article • Environmental Biology of Fishes, October 2021, Springer Science + Business Media

    Mr Nicolas R Ehemann

  13. Historical records of the blotched stingray Urotrygon chilensis (Urotrygonidae: Myliobatiformes) yield insight into species distribution: the importance of natural history collections to questions of zoogeography

    Article • Systematics and Biodiversity, February 2021, Taylor & Francis

    Dr Jose De La Cruz-Agüero, Mr Nicolas R Ehemann, Dr. Francisco J. Garcia-Rodriguez

  14. Reproductive aspects of seven threatened shark species captured by artisanal fisheries in the southern Caribbean Sea

    Article • Regional Studies in Marine Science, February 2021, Elsevier

    Mr Nicolas R Ehemann

  15. Updated taxonomic list and conservation status of chondrichthyans from the exclusive economic zone of Venezuela, with first generic and specific records

    Article • Journal of Fish Biology, July 2019, Wiley

    Mr Nicolas R Ehemann

  16. Zeros as a result in diet studies, is this really bad? Rhinoptera steindachneri as a case study

    Article • Journal of the Marine Biological Association of the United Kingdom, June 2019, Cambridge University Press

    Mr Nicolas R Ehemann

  17. Length–weight relationships of six elasmobranch species captured at the artisanal fishery of Margarita Island, Venezuela

    Article • Journal of Applied Ichthyology, November 2018, Wiley

    Mr Nicolas R Ehemann

  18. First record of a single-clasper specimen of Pseudobatos percellens (Elasmobranchii: Rhinopristiformes: Rhinobatidae) from the Caribbean Sea, Venezuela

    Article • Acta Ichthyologica Et Piscatoria, September 2018, Szczecinskie Towarzystwo Naukowe

    Mr Nicolas R Ehemann

  19. Updated checklist of the extant Chondrichthyes within the Exclusive Economic Zone of Mexico

    Article • ZooKeys, July 2018, Pensoft Publishers

    Mr Nicolas R Ehemann, Dr Jose De La Cruz-Agüero

  20. Figure 1 from: Ehemann NR, González-González LV, Chollet-Villalpando JG, Cruz-Agüero JDL (2018) Updated checklist of the extant Chondrichthyes within the Exclusive Economic Zone of Mexico. ZooKeys 774: 17-39. https://doi.org/10.3897/zookeys.774.25028

    Article • July 2018, Pensoft Publishers

    Mr Nicolas R Ehemann

  21. Atlantic size record for Pterois volitans (Actinopterygii: Scorpaeniformes: Scorpaenidae) with new morphological data on head spinules

    Article • Acta Ichthyologica Et Piscatoria, September 2017, Pensoft Publishers

    Mr Nicolas R Ehemann

  22. Biological notes on the reef stingray, Urobatis concentricus , an endemic species of Mexico

    Article • Journal of Fish Biology, August 2017, Wiley

    Mr Nicolas R Ehemann

  23. Size-weight relationships of batoids captured by artisanal fishery in the southern Gulf of California, Mexico

    Article • Journal of Applied Ichthyology, June 2017, Wiley

    Dr Andrés F Navia, Mr Nicolas R Ehemann, Prof Víctor H. Cruz-Escalona

  24. Lesser devil raysMobula cf. hypostomafrom Venezuela are almost twice their previously reported maximum size and may be a new sub-species

    Article • Journal of Fish Biology, January 2017, Wiley

    Mr Nicolas R Ehemann

  25. Cryptic Caribbean species ofScorpaena(Actinopterygii: Scorpaeniformes) suggested by cytogenetic and molecular data

    Article • Journal of Fish Biology, August 2016, Wiley

    Mr Nicolas R Ehemann

  26. Exploitation and reproduction of the bullnose ray (Myliobatis freminvillei) caught in an artisanal fishery in La Pared, Margarita Island, Venezuela

    Article • Fishery Bulletin, April 2016, NMFS Publications Office

    Mr Nicolas R Ehemann

  27. Karyotype of the invasive species Pterois volitans (Scorpaeniformes: Scorpaenidae) from Margarita Island, Venezuela

    Article • Revista de Biología Tropical, July 2014, Universidad de Costa Rica

    Mr Nicolas R Ehemann