Abstract
Parrotfishes contribute to important reef processes through their feeding. Individuals may join groups with distinctive social behavior, with unknown implications for their feeding ecology and, ultimately, their functional roles in reef systems. Using Scarus iseri populations in Isla Colón, Panama, we investigated whether individuals belonging to the two main social groups formed by this species (‘Territorial’ and ‘Stationary’ groups) differed in their feeding preferences. Territorial groups had access to a diversity of potential food sources, yet showed selectivity for feeding on sandy substrate. Stationary groups showed high selectivity for filamentous algae, despite this resource being less available for this group than for territorial individuals. Initial phase fish had higher bite rates on plants than terminal phase individuals, while the latter had higher bite rates on soft substrata and sponges, both indicating detritus consumption. Parrotfish sociobiology may therefore influence their relative ecosystem impact, with territorial and terminal individuals in both social groups more involved in the detrital food web and stationary groups contributing to a greater extent on algal removal.
Similar content being viewed by others
References
Altmann J (1974) Observational study of behavior: sampling methods. Behaviour 49:227–265
Bonaldo RM, Bellwood DR (2008) Size-dependent variation in the functional role of the parrotfish Scarus rivulatus on the Great Barrier Reef, Australia. Mar Ecol Prog Ser 360:237–244
Bonaldo R, Hoey A, Bellwood D (2014) The ecosystem roles of parrotfishes on tropical reefs. Oceanogr Mar Biol An Annu Rev 52:81–132
Brandl SJ, Rasher DB, Côté IM, Casey JM, Darling ES, Lefcheck JS, Duffy JE (2019) Coral reef ecosystem functioning: eight core processes and the role of biodiversity. Front Ecol Environ 17:445–454
Brown JL (1964) The evolution of diversity in avian territorial systems. Wilson Bull 76:293–329
Bruggemann JH, van Oppen MJH, Breeman AM (1994) Foraging by the stoplight parrotfish Sparisoma viride. I. Food selection in different, socially determined habitats. Mar Ecol Prog Ser 106:41–55
Buckman NS, Ogden JC (1973) Territorial Behavior of the Striped Parrotfish Scarus croicensis Bloch (Scaridae). Ecology 54:1377–1382
Burkepile DE, Adam TC, Roycroft M, Ladd MC, Munsterman KS, Ruttenberg BI (2019) Species-specific patterns in corallivory and spongivory among Caribbean parrotfishes. Coral Reefs 38:417–423
Choat JH, Clements KD, Robbins WD (2002) The trophic status of herbivorous fishes on coral reefs 1: Dietary analyses. Mar Biol 140:613–623
Clements KD, German DP, Piché J, Tribollet A, Choat JH (2016) Integrating ecological roles and trophic diversification on coral reefs: Multiple lines of evidence identify parrotfishes as microphages. Biol J Linn Soc 120:729–751
Clifton KE (1989) Territory sharing by the Caribbean striped parrotfish, Scarus iserti: patterns of resource abundance, group size and behaviour. Anim Behav 37:90–103
Clifton KE (1990) The costs and benefits of territory sharing for the Caribbean coral reef fish, Scarus iserti. Behav Ecol Soc 26:139–147
Clifton KE (1991) Subordinate group members act as food finders within striped parrotfish territories. J Ex Mar Bio Ecol 145:141–148
Clifton KE (1995) Asynchronous food availability on neighboring Caribbean coral reefs determines seasonal patterns of growth and reproduction for an herbivorous parrotfish. Mar Ecol Prog Ser 116:39–46
Crossman DJ, Choat HJ, Clements KD, Hardy T, McConochie J (2001) Detritus as food for grazing fishes on coral reefs. Limnol Oceanogr 46:1596–1605
Crossman DJ, Choat JH, Clements KD (2005) Nutritional ecology of nominally herbivorous fishes on coral reefs. Mar Ecol Prog Ser 296:129–142
Feitosa JLL, Concentino AM, Teixeira SF, Ferreira BP (2012) Food resource use by two territorial damselfish (Pomacentridae: Stegastes) on South-Western Atlantic algal-dominated reefs. J Sea Res 70:42–49
Feitosa JLL, Ferreira BP (2014) Distribution and feeding patterns of juvenile parrotfish on algal-dominated coral reefs. Mar Ecol 36:462–474
Ferreira CEL, Gonçalves JEA (2006) Community structure and diet of roving herbivorous reef fishes in the Abrolhos Archipelago, south-western Atlantic. J Fish Biol 69:1533–1551
Gil M, Hein AM (2017) Social interactions among grazing reef fish drive material flux in a coral reef ecosystem. Proc Natl Acad Sci 114:4703–4708
Girolamo M, Scaggiante M, Rasotto MB (1999) Social organization and sexual pattern in the Mediterranean parrotfish Sparisoma cretense (Teleostei: Scaridae). Mar Biol 135:353–360
Guzmán HM (2003) Caribbean coral reefs of Panama: present status and future perspectives. In: Cortés J (ed) Latin American Coral Reefs. Elsevier Science B.V, Amsterdam, The Netherlands, pp 241–274
Hoey AS, Bellwood DR (2008) Cross-shelf variation in the role of parrotfishes on the Great Barrier Reef. Coral Reefs 27:37–47
Hourigan TF (1989) Environmental determinants of butterflyfish social systems. Environ Biol Fishes 25:61–78
Littler MM, Littler DS (1984) Relationships between macroalgal functional form groups and substrata stability in a subtropical rocky-intertidal system. Exp Mar Biol Ecol 74:13–34
Moriarty DJW, Pollard PC, Hunt WG, Moriarty CM, Wassenberg TJ (1985) Productivity of bacteria and microalgae and the effect of grazing by holothurians in sediments on a coral reef flat. Mar Biol 85:293–300
Mumby PJ, Wabnitz CCC (2002) Spatial patterns of aggression, territory size, and harem size in five sympatric Caribbean parrotfish species. Environ Biol Fishes 63:265–279
Nicholson GM, Clements KD (2020) Resolving resource partitioning in parrotfishes (Scarini) using microhistology of feeding substrata. Coral Reefs 39:1313–1327
Ogden JC, Buckman NS (1973) Movements, foraging groups, and diurnal migrations of the striped parrofish Scarus croicensis Bloch (Scaridae). Ecology 54:589–596
Petersen CW, Warner RR (2002) The ecological context of reproductive behavior. In: Sale PF (ed) Coral Reef Fishes - dynamics and diversity in a complex ecosystem. Academic Press, San Diego, pp 103–118
Randall JE, Randall HA (1963) The spawning and early development of the Atlantic parrotfish Sparisoma rubripinne, with notes on other scarid and labrid fishes. Zoologica 48:49–60
Randall JE (1967) Food habits of reef fishes of the West Indies. Stud Trop Oceanogr 5:665–847
Robertson DR, Hoffman SG (1977) The roles of female mate choice and predation in the mating systems of some tropical labroid fishes. Z Tierpsychol 45:298–320
Robertson DR, Sweatman HPA, Fletcher EA, Cleland MG (1976) Schooling as a mechanism for circumventing the territoriality of competitors. Ecology 57:1208–1220
Robinson JPW, McDevitt-Irwin JM, Dajka JC, Hadj-Hammou J, Howlett S, Graba-Landry A, Hoey AS, Nash KL, Wilson SK, Graham NAJ (2019) Habitat and fishing control grazing potential on coral reefs. Funct Ecol 34:240–251
Steneck RS, Bellwood DR, Hay ME (2017) Herbivory in the marine realm. Curr Biol 27:484–489
van Rooij JM, Kroon FJ, Videler JJ (1996a) The social and mating system of the herbivorous reef fish Sparisoma viride: one- male versus multi- male groups. Environ Biol Fishes 47:353–378
van Rooij JM, de Jong E, Vaandrager F, Videler JJ (1996b) Resource and habitat shared by the stoplight parrotfish, Sparisoma viride, a Caribbean reef herbivore. Environ Biol Fishes 47:81–91
Warner RR, Downs IF (1977) Comparative life histories growth vs. reproduction in normal males and sex-changing hermaphrodites of the striped parrotfish, Scarus croicensis. Proc Third Int Coral Reef Symp 1:275–282
Warner RR (1991) The use of phenotypic plasticity in coral reef fishes as tests of theory in evolutionary ecology. In: Sale PF (eds) The Ecology of Fishes on Coral Reefs. Academic Press, pp 387–398
Wilson SK, Bellwood DR, Choat JH, Furnas MJ (2003) Detritus in the epilithic algal matrix and its use by coral reef fishes. Oceanogr Mar Biol 41:279–309
Acknowledgements
We would like to thank the Tropical Conservation Consortium (TCC) crew for assistance in fieldwork. JLLF and LCTC were granted scholarships from CAPES (Coordenação de Aperfeiçoamento de Pessoal do Nível Superior) and CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico), respectively, during the time of this study.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Topic Editor Andrew Hoey
Supplementary Information
Below is the link to the electronic supplementary material.
Supplementary file1 (MP4 279970 KB)
Rights and permissions
About this article
Cite this article
Feitosa, J.L.L., Chaves, L.C.T., Queiroz-Véras, L.V.M.V. et al. Effects of social organization on the feeding of the striped parrotfish, Scarus iseri. Coral Reefs 40, 951–957 (2021). https://doi.org/10.1007/s00338-021-02080-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00338-021-02080-3