Abstract
The effects of habitat complexity have been considered important factors for the evolution of morphological complexity in organisms. We assessed the possible relationship between hydraulic niche conditions and the morphological complexity of algal filaments by sampling four species of macroalgae inhabiting different hydraulic niches in two freshwater streams. These algal species exhibit different fractal dimensions, which were measured by applying a grid method. The results showed that morphological differences are a function of hydraulic niche for stream macroalgae. Algae with complex shape (Nitella wrightii and Batrachosperum puiggarianum) were established in slower flows, while algae with simpler filament shape (Vaucheria sp. and Oedogonium sp.) were more likely to occur in faster water currents. The sites where the species occurred are a reflection of their ability to hold position, which is ultimately driven by their morphology. The influence of flow in stream habitats is an important factor for lotic macroalgae settlement and its effects can be related to evolutionary adjustment of body shape in these environments. We suggest that the morphological structure (here as fractal dimension) of freshwater macroalgae can be considered an adaptation to the costs and benefits exhibited by different hydraulic niches.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10750-014-2120-1/MediaObjects/10750_2014_2120_Fig1_HTML.gif)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs10750-014-2120-1/MediaObjects/10750_2014_2120_Fig2_HTML.gif)
Similar content being viewed by others
References
Adami, C., 2002. What is complexity? BioEssays 24: 1085–1094.
Allan, J. D. & M. M. Castillo, 2007. Stream Ecology: Structure and Function of Running Waters, 2nd ed. Chapman and Hall, New York, NY.
Albayrak, I., V. Nikora, O. Miler & M. O’Hare, 2012. Flow-plant interactions at a leaf scale: effects of leaf shape, serration, roughness and flexural rigidity. Aquatic Science 74(2): 267–286.
Auerbach, J. E. & J. C. Bongard, 2014. Environmental influence on the evolution of morphological complexity in machines. PLoS Computational Biology 10(1): 1–17.
Bicudo, C. E. M. & M. Menezes, 2006. Gêneros de Algas de Águas Continentais do Brasil. RiMa Editora, São Paulo.
Borazjani, I. & F. Sotiropoulos, 2010. On the role of form and kinematics on the hydrodynamics of self-propelled body/caudal fin swimming. Journal of Experimental Biology 213: 89–107.
Branco, L. H. Z. & O. J. Necchi, 1997. Seasonality of macroalgae in three tropical drainage basins in São Paulo State, southeastern Brazil. Archives of Hydrobiologia 141(1): 75–91.
Branco, C. C. Z., R. A. Krupek & C. K. Peres, 2008. Seasonality of macroalgal communities in a subtropical drainage basin in Paraná state, southern Brazil. Brazilian Journal of Biology 68(4): 741–749.
Branco, C. C. Z., R. A. Krupek & C. K. Peres, 2009. Distribution of stream macroalgal communities from the mid-western region of Parana´ State, southern Brazil: importance of local-scale variation. Brazilian Archives of Biology and Technology 52: 379–386.
Brooks, A. J., T. Haeusler, I. Reinfelds & S. Williams, 2005. Hydraulic microhabitats and the distribution of macroinvertebrate assemblages in riffles. Freshwater Biology 50: 331–344.
Carpenter, R. C., J. M. Hackney & W. H. Adey, 1991. Measurements of primary productivity and nitrogenase activity of coral reef algae in a chamber incorporating oscillatory flow. Limnology and Oceanograph 36: 40–49.
Chow, V. T., 1959. Open-Channel Hydraulics. McGraw Hill, New York: 680 pp.
Gordon, N. D., T. A. McMahon, B. L. Finlayson, C. J. Gippel & R. J. Nathan, 2004. Stream Hydrology: An Introduction for Ecologists, 2nd ed. Wiley, West Sussex.
Hein, M., M. F. Pedersen & K. Sand-Jensen, 1995. Size-dependent nitrogen uptake in micro-and macroalgae. Marine Ecology Progress Series 118(1): 247–253.
Janauer, G. A., U. Schmidt-Mumm & B. Schmidt, 2010. Aquatic macrophytes and current velocity in the Danube River. Ecological Engineering 36: 1138–1145.
Janauer G. A., U. Schmidt-Mumm & W. Reckendorfer, 2013. Ecohydraulics and aquatic macrophytes: assessing the relationship in river floodplains. In Maddock, I., A. Harby, P. Kemp & P. Wood (eds) Ecohydraulics: An Integrated Approach, Wiley-Blackwell, Oxford, UK, 245–259.
Klingenberg, C. P., 2010. Evolution and development of shape: integrating quantitative approaches. Nature reviews 11: 623–635.
Kostylev, V. E., J. Erlandsson, M. Y. Ming & G. A. Williams, 2005. The relative importance of habitat complexity and surface area in assessing biodiversity: fractal application on rocky shores. Ecological Complexity 2(3): 272–286.
Kovalenko, K. E., S. M. Thomaz & D. M. Warfe, 2012. Habitat complexity: approaches and future directions. Hydrobiologia 685: 1–17.
Krupek, R. A. & C. C. Z. Branco, 2012. Ecological distribution of stream macroalgae in different spatial scales using taxonomic and morphological groups. Brazilian Journal of Botany 35(3): 273–280.
Lee, R. E., 2008. Phycology, 4th ed. Cambridge University Press, New York: 547 pp.
Littler, M. M., D. S. Littler & P. R. Taylor, 1983. Evolutionary strategies in a tropical barrier reef system: functional form groups of marine macroalgae. Journal of Phycology 19: 229–237.
Lovvorn, J. R., G. A. Liggins, M. H. Borstad, S. M. Calisal & J. Mikkelsen, 2001. Hydrodynamic drag of diving birds: effects of body size, body shape and feathers at steady speeds. The Journal of Experimental Biology 204: 1547–1557.
McAbendroth, L., P. M. Ramsay, A. Foggo, S. K. Rundle & D. T. Bilton, 2005. Does macrophytes fractal complexity drive invertebrate diversity, biomass and body size distributions? Oikos 11: 279–290.
Necchi, O. J. & D. Pascoaloto, 1993. Distribution and seasonal dynamics of Rhodophyta in the Preto River basin, southeastern Brazil. Hydrobiologia 250(2): 81–90.
Necchi, O., 1997. Microhabitat and plant structure of Batrachospermum (Batrachospermales, Rhodophyta) populations in four streams of São Paulo State, southeastern Brazil. Phycological Research 45(1): 39–45.
Nicotra, A. B., A. Leigh, C. K. Boyce, C. S. Jones, K. J. Niklas, D. L. Royer & H. Tsukaya, 2011. The evolution and functional significance of leaf shape in the angiosperms. Functional Plant Biology 38(7): 535–552.
Nikora, V., 2010. Hydrodynamics of aquatic ecosystems: an interface between ecology, biomechanics and environmental fluid mechanics. River Research and Application 26: 367–384.
Orr, H. A., 2000. Adaptation and the cost of complexity. Evolution: International Journal of Organic. Evolution 54: 13–20.
Passy, S., 2002. Environmental randomness underlies morphological complexity of colonial diatoms. Functional Ecology 16: 690–695.
Pennycuick, C. J., M. Klaassen, A. Kvist & A. Lindstrom, 1996. Wingbeat frequency and the body drag anomaly: windtunnel observations on a thrush nightingale (Luscinia luscinia) and a teal (Anas crecca). Journal of Experimental Biology 199: 2757–2765.
Peterson, C. G. & R. J. Stevenson, 1992. Resistance and resilience of lotic algal communities: importance of disturbance timing and current. Ecology 73: 1445–1461.
Resh, V. H., A. V. Brown, A. P. Covich, M. E. Gurtz, H. W. Li, G. W. Minshall, S. R. Reice, A. L. Sheldon, J. B. Wallace & R. Wissmar, 1988. The role of disturbance in stream ecology. Journal of the North American Benthological Society 7: 433–455.
Schagerl, M. & M. Kerschbaumer, 2009. Autecology and morphology of selected Vaucheria species (Xanthophyceae). Aquatic Ecology 43(2): 295–303.
Schneck, F. & A. S. Melo, 2012. Hydrological disturbance overrides the effect of substratum roughness on the resistance and resilience of stream benthic algae. Freshwater Biology 57: 1678–1688.
Sheath, R. G. & K. M. Cole, 1992. Biogeography of stream macroalgal in North America. Journal of Phycology 28: 448–460.
Statzner, B. & B. Higler, 1986. Stream hydraulics as a major determinant of benthic invertebrate zonation patterns. Freshwater Biology 16: 127–139.
Steveson, R. J., M. L. Bothwell & R. L. Lowe, 1996. Algal Ecology: Freshwater Benthic Ecosystems. Academic Press, San Diego: 753 pp.
Taniguchi, H. & M. Tokeshi, 2004. Effects of habitat complexity on benthic assemblages in a variable environment. Freshwater Biology 49: 1164–1178.
Tarakhovskaya, E. R., 2014. Mechanisms of bioadhesion of macrophytic algae. Russian Journal of Plant Physiology 61(1): 19–25.
Townsend, C. R. & A. G. Hildrew, 1994. Species traits in relation to a habitat templet for river systems. Freshwater biology 31(3): 265–275.
Thomaz, S. M., E. D. Dibble, L. R. Evangelista, J. Higuti & L. M. Bini, 2008. Influence of aquatic macrophyte habitat complexity on invertebrate abundance and richness in tropical lagoons. Freshwater Biology 53: 358–367.
Tonetto, A. F., C. K. Peres & C. C. Z. Branco, 2012. O gênero Vaucheria DC (Vaucheriaceae, Xanthophyceae) no Sul do Brasil: aspectos taxonômicos e ecológicos. Biota Neotropica 12(2): 197–204.
Tonetto, A. F., R. Cardoso-Leite, C. K. Peres, P. C. Bispo & C. C. Z. Branco, 2014. The effects of habitat complexity and hydraulic conditions on the establishment of benthic stream macroalgae. Freshwater Biology 59(8): 1687–1694.
Vreeland, V., J. H. Waite & L. Epstein, 1998. Polyphenols and oxidases in substratum adhesion by marine algae and mussels. Journal of Phycology 34: 1–8.
Vieira, J. J. & O. J. NECCHI, 2002. Microhabitat and plant structure of Characeae (Chlorophyta) populations in streams from São Paulo State, southeastern Brazil. Cryptogamie Algologie 23(1): 51–63.
Wainwright, P. C. & S. M. Reilly, 1994. Ecological Morphology: Integrative Organismal Biology. The University of Chicago Press, Chicago: 367 pp.
Webb, P. W. & A. J. Cotel, 2010. Turbulence: does vorticity affect the structure and shape of body and fin propulsors? Integrative and Comparative Biology 50(6): 1155–1166.
Wehr, J. D., 2002. Freshwater Algae of North America: Ecology and Classification. Academic Press, San Diego.
Willby, N. J., V. J. Abernethy & B. O. L. Demars, 2000. Attribute-based classification of European hydrophytes and its relationship to habitat utilization. Freshwater Biology 43: 43–74.
Acknowledgements
We kindly thank Katya Kovalenko for editing this manuscript and for valuable comments. Furthermore, we greatly thank for anonymous reviewers who improved the manuscript with important suggestions. We thank CAPES, CNPq and FAPESP (process 13/00406-7; process 2010/17563-0) for financial support.
Author information
Authors and Affiliations
Corresponding author
Additional information
Handling editor: Katya E. Kovalenko
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Tonetto, A.F., Cardoso-Leite, R., Novaes, M.C. et al. The relationship between macroalgal morphological complexity and hydraulic conditions in stream habitats. Hydrobiologia 747, 33–41 (2015). https://doi.org/10.1007/s10750-014-2120-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10750-014-2120-1