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When good advertisement backfires: cleaners get eaten too

Cleaning interactions found in coral reef communities are a textbook example of mutualistic behavior; cleaners provide a service to larger, so-called client fish by removing and ingesting ectoparasites. Specific coloration is important to signal the occurrence of these interactions and indeed, all cleaner species share the particular feature of sporting colorful, contrasting stripes which they use to advertise their cleaning services to clients, combined with tactile dancing (Grutter 2004; Cheney et al. 2009; Lettieri and Streelman 2010). Among cleaner fish species, blue stripes that provide the highest contrast in coral reef environments and lead to better visibility for potential partners (Cheney et al. 2009) are solely found in obligate cleaners (Lettieri and Streelman 2010). However, successful interactions depend greatly on the potential clients’ intentions, as this increase in exposure comes with the added risk of predation. Although predatory clientele react more to high-contrast blue stripes (Lettieri and Streelman 2010), it is thought that cleaners are almost immune to predation due to the ability to manipulate their clients (Grutter 2004), in addition to specific coloration that may provide extra protection (Cheney et al. 2009; Lettieri and Streelman 2010). Here, we show first-hand footage of an Indo-Pacific bluestreak cleaner wrasse, Labroides dimidiatus, falling prey to a lizardfish, Synodus sp. (photo series in Fig. 1; see Electronic Supplementary Material for full video), thus providing evidence that cleaner fish do suffer risk and are eaten at times. This predatory event was observed in 2012 on Mermaid Reef, Lizard Island (Lizard Island Research Station, Australia, 14°40′S, 145°28′E), within the cleaner wrasse’s territory (cleaning station), but not during or following a cleaning event.

Fig. 1
figure1

Series of four photographs (see movie in Electronic Supplementary Materials) of a lizardfish, Synodus sp., preying on a cleaner wrasse, Labroides dimidiatus. Red arrows indicate the lizardfish location, and blue arrows the cleaner wrasse’s. Lizardfish is spotted waiting (a); it then lunges to the cleaner (b), catches it (c), and finally starts swallowing it (d)

References

  1. Cheney KL, Grutter AS, Blomberg SP, Marshall NJ (2009) Blue and yellow signal cleaning behavior in coral reef fishes. Curr Biol 19:1283–1287

  2. Grutter AS (2004) Cleaner fish use tactile dancing behavior as a preconflict management strategy. Curr Biol 14:1080–1083

  3. Lettieri L, Streelman JT (2010) Colourful stripes send mixed messages to safe and risky partners in a diffuse cleaning mutualism. J Evol Biol 23:2289–2299

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Author information

Correspondence to J. P. M. Messias.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (MP4 38961 kb)

Supplementary material 1 (MP4 38961 kb)

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Messias, J.P.M., Soares, M.C. When good advertisement backfires: cleaners get eaten too. Coral Reefs 34, 1279 (2015) doi:10.1007/s00338-015-1303-1

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Keywords

  • Coral Reef
  • Specific Coloration
  • Reef Environment
  • Coral Reef Community
  • Cleaning Event