Local variations in microhabitat use by Stegastes fuscus (Cuvier, 1830) (Teleostei: Pomacentridae) in a tropical reef of Brazil

Paulo Roberto de Medeiros , Ana Luisa Pires Moreira and Ana Maria Alves de Medeiros

Abstract
Due to their widespread abundance and territorial habits, damselfishes play central roles in reefs worldwide, but the extent to which they modify the reef's substrate varies both amongst and within species. The present study evaluated microhabitat preferences and the role of the common damselfish Stegastes fuscus (Cuvier, 1830) (Teleostei: Pomacentridae) as a benthic community modifier in a tropical algal-dominated reef. We employed video survey techniques to assess fish density and microhabitat use and, additionally, the biomass of sessile components were compared inside and immediately outside algal farms of S. fuscus. Individuals showed pronounced microhabitat preference, but with prominent local (i.e. small-scale) variations in benthic cover. These local variations are reported for the first time and were due to individuals defending one of two contrasting microhabitats (i.e. turf-dominated or Palythoa caribaeorum-dominated). Further, significant differences in the biomass of sessile organisms were observed within algal farms suggesting that S. fuscus plays a keystone role in the benthic community of the reef. The implications of the prominent local variation in microhabitat use are discussed and strongly illustrate the behavioral plasticity of this damselfish.

Keywords
Damselfish; Habitat Complexity; Benthic Biomass; Southwestern Atlantic.

DOI
10.21472/bjbs.030613

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References
Barneche, D. R.; Floeter, S. R.; Ceccarelli, D. M.; Frensel, D. M. B.; Dinslaken, D. F.; Mario, H. F. S.; Ferreira, C. E. L. Feeding macroecology of territorial damselfishes (Perciformes: Pomacentridae). Mar. Biol., v. 156, p. 289-299, 2009.

Branch, G. M.; Harris, J. M.; Parkins, C.; Bustamante, R. H.; Eekhout, S. Algal gardening by grazers: a comparison of the ecological effects of territorial fish and limpets. In: John, D. M.; Hawkins, S. J.; Price, J. H. (Eds.). Plant-Animal Interactions in the Marine Benthos. Oxford: Clarendon Press, 1992. p. 405-423.

Brawley, S. H.; Adey, W. H. Territorial behavior of threespot damselfish (Eupomacentrus planifrons) increases reef algal biomass and productivity. Environ. Biol. Fish., v. 2, p. 45-51, 1977.

Canan, B.; Nascimento, W. S.; Silva, N. B.; Chellappa, S. Morphohistology of the digestive tract of the damsel fish Stegastes fuscus (Osteichthyes: Pomacentridae). Scientific World J., v. 2012, Article ID 787316, 9 p., 2012. http://dx.doi.org/10.1100/2012/787316

Ceccarelli, D. M.; Jones, G. P.; McCook, L. J. Territorial damselfishes as determinants of the structure of benthic communities on coral reefs. Oceanogr. Mar. Biol., v. 39, p. 355-389, 2001.

Ceccarelli, D. M.; Jones, G. P.; McCook, L. J. Effects of territorial damselfish on an algal-dominated coastal coral reef. Coral Reefs, v. 24, p. 606-620, 2005.

Ceccarelli, D. M. Modification of benthic communities by territorial damselfish: a multi-species comparison. Coral Reefs, v. 26, p. 853-866, 2007.

Connell, S. D.; Jones, G. P. The influence of habitat complexity on postrecruitment processes in a temperate reef fish population. J. Exp. Mar. Biol. Ecol., v. 151, no. 2, p. 271-294, 1991. http://dx.doi.org/10.1016/0022-0981(91)90129-K

Feitosa, J. L.; Concetino, A. M.; Teixeira, S. F.; Ferreira, B. P. Food resource use by two territorial damselfish (Pomacentridae: Stegastes) on South-Western Atlantic algal-dominated reefs. J. Sea Res., v. 70, p. 42-49, 2012.

Ferreira, C. E. L.; Gonçalves, J. E. A.; Coutinho, R.; Peret, A. C. Herbivory by the dusky damselfish Stegastes fuscus (Cuvier, 1830) in a tropical rocky shore: effects on the benthic community. J. Exp. Mar. Biol. Ecol., v. 229, p. 241-264, 1998.

Foster, S. A. Size-dependent territory defense by a damselfish: a determinant of resource use by group foraging surgeonfishes. Oecologia, v. 67, p. 499-505, 1985.

Francini-Filho, R. B.; Moura, R. L. Predation on the toxic zoanthid Palythoa caribaeorum by reef fishes in the Abrolhos Bank, Eastern Brazil. Braz. J. Oceanogr., v. 58, p. 77-79, 2010.

Gobler, C. J.; Thibault, D. B.; Davis, T. W.; Curran, P. B.; Peterson, B. J.; Liddle, L. B. Algal assemblages associated with Stegastes sp. territories on Indo-Pacific coral reefs: characterization of diversity and controls on growth. J. Exp. Mar. Biol. Ecol., v. 336, p. 135-145, 2006.

Hata, H.; Kato, M. Weeding by the herbivorous damselfish Stegastes nigricans in nearly monocultural algae farms. Mar. Ecol. Prog. Ser., v. 237, p. 227-231, 2002.

Hata, H.; Kato, M. Demise of monocultural algal farms by exclusion of territorial damselfish. Mar. Ecol. Prog. Ser., v. 263, p. 159-167, 2003.

Hata, H.; Kato, M. Monoculture and mixed-species algal farms on a coral reef are maintained through intensive and extensive management by damselfishes. J. Exp. Mar. Biol. Ecol., v. 313, p. 285-296, 2004.

Hay, M. E.; Duffy, J. E.; Fenical, F.; Gustaison, K. Chemical defense in the seaweed Dictyopteris delicatula: differential effects against reef fishes and amphipods. Mar. Ecol. Prog. Ser., v. 48, p. 185-192, 1988.

Hixon, M. A. Effects of reef fishes on corals and algae. In: Birkeland, C. (Ed.). Life and death on coral reefs. New York: Chapman and Hall, 1996. p. 230-248.

Hixon, M. A.; Brostoff, W. N. Damselfish as keystone species in reverse: intermediate disturbance and diversity of reef algae. Science, v. 220, p. 511-513, 1983.

John, M. A. S.; Clemmesen, C.; Lund, T.; Köster, T. Diatom production in the marine environment: implications for larval fish growth and condition. ICES J. Mar. Sci., v. 58, p. 1106-1113, 2001.

Kamura, S.; Choonhabandit, S. Algal communities within territories of the damselfish Stegastes apicalis and the effects of grazing by sea urchins Diadema spp. in the Gulf of Thailand. Galaxea, v. 5, p. 175-193, 1986.

Klumpp, D. W.; McKinnon, A. D.; Daniel, P. Damselfish territories: zones of high productivity on coral reefs. Mar. Ecol. Prog. Ser., v. 40, p. 41-51, 1987.

Kohler, K. E.; Gill, S. M. Coral Point Count with Excel extensions (CPCe): a Visual Basic program for the determination of coral and substrate coverage using random point count methodology. Comput. Geosci., v. 32, p. 1259-1269, 2006.

Komyakova, V.; Munday, P. L.; Jones, G. P. Relative importance of coral cover, habitat complexity and diversity in determining the structure of reef fish communities. PLoS ONE, v. 8, no. 12, e83178, 2013. http://dx.doi.org/10.1371/journal.pone.0083178

Lassuy, D. R. Diet, intestinal morphology and nitrogen assimilation efficiency in the damselfish, Stegastes lividus, in Guam. Environ. Biol. Fish., v. 10, p. 183-193, 1984.

Lehner, P. N. Handbook of ethological methods. England: Cambridge University Press, 1996.

Medeiros, P. R.; Souza, A. T.; Ilarri, M. I. Habitat use and behavioural ecology of the juveniles of two sympatric damselfishes (Actinopterygii: Pomacentridae) in the South-Western Atlantic Ocean. J. Fish Biol., v. 77, p. 1599-1615, 2010a.

Medeiros, P. R.; Grempel, R. G.; Souza, A. T.; Ilarri, M. I.; Rosa, R. S. Non-random reef use by fishes at two dominant zones in a tropical, algal-dominated coastal reef. Environ. Biol. Fish., v. 87, p. 237-246, 2010b.

Medeiros, P. R.; Rada, D. P.; Rosa, R. S. Abundance and behavioural ecology of the blenny Ophioblennius trinitatis (Teleostei: Blenniidae) at an oceanic archipelago of Brazil (Atlantic). Sci. Mar., v. 78, p. 203-212, 2014.

Menegatti, J. V.; Vescovi, D. L.; Floeter, S. R. Interaç&ões agonísticas e forrageamento do peixe-donzela comum, Stegastes fuscus (Peciformes: Pomacentridae). Nat. Online, v. 1, p. 45-50, 2003.

Moore, R. E.; Scheuer, P. J. Palytoxin: a new marine toxin from a coelenterate. Science, v. 172, p. 495-498, 1971.

Osório, R.; Rosa, I. L.; Cabral, H. Territorial defence by the Brazilian damsel Stegastes fuscus (Teleostei: Pomacentridae). J. Fish Biol., v. 69, p. 233- 242, 2006.

Targett, T. E.; Targett, N. M. Energetics of food selection by the herbivorous parrotfish Sparisoma radians: roles of assimilation efficiency, gut evacuation rate, and algal secondary metabolites. Mar. Ecol. Prog. Ser., v. 66, p. 13-21, 1990.

Underwood, A. J. Experiments in Ecology: their logical design and interpretation using analysis of variance. England: Cambridge University Press, 1997.

Wiles, J. S.; Vick, J. A.; Christensen, M. K. Toxicological evaluation of palytoxin in several animal species. Toxicon, v. 12, p. 427-433, 1974.