Abstract
Context-dependent ecological interactions between invasive species are important in determining the outcomes of their introductions. The consequences of competitive interactions between the Nile tilapia Oreochromis niloticus (interference competitor) and common carp Cyprinus carpio (exploitative competitor) were investigated here across a temperature gradient (20–28°C). These highly invasive fish are now present in many regions where populations increasingly coexist, inducing trophic interactions and niche overlaps. Experimental feeding and growth trials revealed the feeding rate (items s−1) and specific growth rate (% day−1) of these fishes were not significantly different at 24°C, but were significantly higher for C. carpio at 20°C and significantly higher for O. niloticus at 28°C. An additional experiment completed at 24°C revealed that O. niloticus rapidly form hierarchies, where dominant fish monopolise food resources through interference, resulting in their faster growth. Introductions of 1 and 3 C. carpio (an exploitative competitor) into the hierarchy had no effect on this food monopolisation as carp were excluded through aggression. The addition of 6 C. carpio did, however, significantly reduce the food intake of the dominant tilapia. This was due to increased exploitative competition rather than breaking of the hierarchy. The effect of adding 3 O. niloticus was similar to 6 C. carpio, suggesting inter- and intra-specific competitive strength was similar. These findings suggest when populations co-exist, temperature-dependent feeding interactions may result in the competitive exclusion of C. carpio through the aggressive interference by O. niloticus, potentially influencing invasion outcomes.
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References
Baxter CV, Fausch KD, Murakami M, Chapman PL (2007) Invading rainbow trout usurp a terrestrial prey subsidy from native charr and reduce their growth and abundance. Oecologia 153:461–470
Blanchet S, Loot G, Bernatchez L, Dodson JJ (2007a) The disruption of dominance hierarchies by a non-native species: an individual based analysis. Oecologia 152:569–581
Blanchet S, Loot G, Grenouillet G, Brosse S (2007b) Competitive interactions between native and exotic salmonids: a combined field and laboratory demonstration. Ecol Freshw Fish 16:133–143
Bohlin T, Sundstrom LF, Johnsson JI, Hojesjo J, Pettersson J (2002) Density-dependent growth in brown trout: effects of introducing wild and hatchery fish. J Anim Ecol 7:683–692
Bøhn T, Amundsen P-A (2001) The competitive edge of an invading specialist. Ecology 82:2150–2163
Bøhn T, Amundsen PA, Sparrow A (2008) Competitive exclusion after invasion? Biol Invasions 10:359–368
Britton JR, Cucherousset J, Grey J, Gozlan RE (2011) Determining the strength of exploitative competition from an introduced fish: roles of density, biomass and body size. Ecol Freshw Fish 20:74–79
Canario AVM, Condeca J, Power DM (1998) The effect of stocking density on growth in the gilthead sea-bream Sparus aurata (L.). Aquat Res 29:177–181
Connell JH (1983) On the prevalence and relative importance of interspecific competition: evidence from field experiments. Am Nat 122:661–696
Cross WT, Benke AC (2002) Intra- and interspecific competition among coexisting lotic snails. Oikos 96:251–264
Crowl TA, Townsend CR, McIntosh AR (1992) The impact of introduced brown and rainbow trout on native fish: the case of Australasia. Rev Fish Biol Fisher 2:217–241
Cucherousset J, Olden JD (2011) The ecological impacts of non native freshwater fishes. Fisheries 36:215–230
Dick JTA, Montgomery I, Elwood RW (1993) Replacement of the indigenous amphipod Gammarus duebeni celticus by the introduced G. pulex: differential cannibalism and mutual predation. J Anim Ecol 62:79–88
Diehl S, Eklov P (1995) Effects of piscivore-mediated habitat use on resources, diet, and growth of perch. Ecology 76:1712–1726
Fausch KD (1998) Interspecific competition and juvenile Atlantic salmon (Salmo salar): on testing effects and evaluating the evidence across scales. Can J Aquat Sci 55:218–231
Kennedy GJA, Strange CD (1986) The effects of intra- and inter-specific competition on the survival and growth of stocked juvenile Atlantic salmon, Salmo salar L., and resident trout, Salmo trutta L., in an upland stream. J Fish Biol 28:479–489
Korsu K, Huusko A, Muotka T (2009) Does the introduced brook trout (Salvelinus fontinalis) affect the growth of the native brown trout (Salmo trutta)? Naturwissenschaften 96:347–353
Lawler SP, Dritz D, Strange T, Holyoak M (1999) Effects of introduced mosquitofish and bullfrogs on the threatened California Red-legged frog. Conserv Biol 13:613–622
Lever C (1996) Naturalized fishes of the world. Academic Press, London
Martin CW, Valentine MM, Valentine JF (2010) Competitive interactions between invasive Nile tilapia and native fish: the potential for altered trophic exchange and modification of food webs. PloS One 10:e14395
Mercado-Silva N, Helmus M, Vander Zanden MJ (2008) The effects of impoundments and invasive species on a river food web in Mexico’s central plateau. River Res Appl 25:1090–1108
Schoener TW (1983) Field experiments on interspecific competition. Am Nat 122:240–285
Seiler SM, Keeley ER (2009) Competition between native and introduced salmonid fishes: cutthroat trout have lower growth rate in the presence of cutthroat—rainbow trout hybrids. Can J Fish Aquat Sci 66:133–141
Simon KM, Townsend CR (2003) Impacts of freshwater invaders at different levels of ecological organisation, with emphasis on salmonids and ecosystem consequences. Freshw Biol 48:982–994
Taniguchi Y, Rahel FJ, Novinger DC, Gerow KG (1998) Temperature mediation of competitive interactions among three fish species that replace each other along longitudinal stream gradients. Can J Fish Aquat Sci 55:1894–1901
Van der Velde G, Rajagopal S, Kuyper-Kollenaar M et al (2006) Biological invasions: concepts to understand and predict a global threat. In: Bobbink R, Beltman B, Verhoeven JTA, Whigham DF (eds) Wetlands: functioning, biodiversity conservation and restoration, ecological studies, vol 191. Springer, Berlin, pp 61–90
Van Riel MC, van der Velde G, Bij de Vaate A (2009) Interference competition between alien invasive gammaridean species. Biol Invasions 11:2119–2132
Weyl O (2006) Rapid invasion of a subtropical lake fishery in central Mozambique by Nile tilapia, Oreochromis niloticus (Pisces: Cichlidae). Aquat Conserv 18:839–851
Wijnhoven S, Van Riel MC, Van der Velde G (2003) Exotic and indigenous freshwater gammarid species: physiological tolerance to water temperature in relation to ionic content of the water. Aquat Ecol 37:151–158
Wilson JC, Nibbelink NP, Peterson DL (2009) Thermal tolerance experiments help establish survival probabilities for tilapia, a group of potentially invasive aquatic species. Freshw Biol 54:1642–1650
Zambrano L, Martinez-Meyer E, Menezes N, Townsend PA (2006) Invasive potential of common carp (Cyprinus carpio) and Nile tilapia (Oreochromis niloticus) in American freshwater systems. Can J Fish Aquat Sci 63:1903–1910
Zambrano L, Valiente E, Vander Zanden M (2010) Food web overlap among native axolotl (Ambystoma mexicanum) and two exotic fishes: carp (Cyprinus carpio) and tilapia (Oreochromis niloticus) in Xochimilco, Mexico City. Biol Invasions 12:3061–3069
Acknowledgments
Funding for the experiments was provided through support from the British Council through a Commonwealth Scholarship award to D. Oyugi.
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Oyugi, D.O., Cucherousset, J. & Robert Britton, J. Temperature-dependent feeding interactions between two invasive fishes competing through interference and exploitation. Rev Fish Biol Fisheries 22, 499–508 (2012). https://doi.org/10.1007/s11160-011-9243-5
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DOI: https://doi.org/10.1007/s11160-011-9243-5