¹ Salwiczek, L. H., Prétôt, L., Demarta, L., Proctor, D., Essler, J., Pinto, A. I., … Bshary, R. (2012). Adult Cleaner Wrasse Outperform Capuchin Monkeys, Chimpanzees and Orang-utans in a Complex Foraging Task Derived from Cleaner - Client Reef Fish Cooperation. PLoS ONE, 7

² Cleaner wrasse pass the mark test. What are the implications for consciousness and self-awareness testing in animals? Kohda, View ORCID ProfileHatta Takashi, Tmohiro Takeyama, Satoshi Awata, Hirokazu Tanaka, Jun-ya Asai, Alex Jordan doi: https://doi.org/10.1101/397067

³ Kawase, H., Okata, Y., & Ito, K. (2013). Role of Huge Geometric Circular Structures in the Reproduction of a Marine Pufferfish. Scientific Reports, 3(1), 2106. https://doi.org/10.1038/srep02106

⁴ Jones, A. M., Brown, C., & Gardner, S. (2011). Tool use in the tuskfish Choerodon schoenleinii? Coral Reefs, 30(3), 865. https://doi.org/10.1007/s00338-011-0790-y

⁵ Besluit houders van dieren, hoofdstuk 1, paragraaf 3 http://wetten.overheid.nl/BWBR0035217/2018-07-01#Hoofdstuk1

⁶ Zienswijze 'Welzijn van vissen' | Raad voor Dierenaangelegenheden

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