rate (number per hour) replicate groups 7 macroalgal 1 h long. Prefere - PDF document

rate (number per hour) replicate groups 7 macroalgal 1 h long. Preferences a common letter not significantly seasonal dietary (Kendall's Rank Correlation feeding preferences dimorphum Chlorophyta c d d e invertebrate herbivore Ceramiales (order, 15.9 -0.14 (R) 0.8 11.1 -0.10 effective in fish or during high the channels experiment showed did not enter the cages. On individual limpets the invertebrate 2 different replicate found inside intertidal herbivorous which rapidly in- creased on the a maximum cm3; Fig. 75 d. amount (volume) Macroalqal volume exclusions differed nificantly from developed under the other 3 treatments (invertebrate cage-roof control Tukey test: p c differ from did not cage-roof control have been increased in cages, reaching a maximum cm3; Fig. d. The canopy height was contrast, no consistent was detected under the amount (volume) macroalgae present under p 0.01; effect that developed differed sig- nificantly from appeared under the test: p did not red and on some surfaces, there was a delay The abundance these species tiny fraction macroalgal volume and peaked d with a 700 cm3 (Fig. on the Ulva rigida No significant roof control through time central Chile, different experimental treatments: exclusion). Each treatment has (b) green macroalgae. Note logarithmic treatment was excluded from this red algae these surfaces. inorganic sediment rarely ingest consumes, together inorganic sediment in its demonstrates that their macroalgal the substratum (Choat but see browsers select macroalgae (Choat Further, grazing inated instead (Choat 1991). has been have high may be sustain themselves, given temperate waters. the above 2 general- we have shown the present a grazer a temperate a high resulted in enormous increase a much extent, red substrata, both remaining our knowledge, experimental study demonstrating although a few studies carried out reefs (Foster 1975, Harris 1990, Sala Scartichthys viridis only fish that other fishes also Hypsoblennius sordidus, consume invertebrate prey small individuals S. sanguineus former could environments (Stepien Ojeda 1997). On the usually restricted where the sion effects Further evidence supporting their comb-like teeth scrape marks, the area where the experiment intertidal rocks along the coast. They also easily (1978) mistakenly identified as belonging Sicyases sanguineus species does hypothesized that would result in a time in non-selected algal species. was largely because large amounts selected in macroalgae (e.g. much longer selectivity by macroalgal species rocky mid a system while their red macroalgae. Further, the the central Chilean coast, the excavating non-dietary species on surfaces not offered feeding tests only in does not 184: 219-229, the cages distribution into Nevertheless, as mentioned, why did This question be answered. diversity within such as pellets containing macroalgal passed through their et al. 1983). Macroalgal fecal pellets is a species along the Ojeda 1997). species occurs, in this in determining dance and found in the gut the laboratory provided useful anonymous reviewers valuable comments that overall quality the manuscript. projects 1941205, (No. 3) by a CONICYT Doctoral Fellowship. This (1990) Patch in a Ehret MJ (1993) Diet, food and crabs California. Environ por dos (Aplodactilidae). Medio Ambiente toral fish CW, Ojeda press) Patrones Hist Nat temperate hrrhivorous punctatus: the (1988) Emersion Nat Hist herbivorous fishes on coral (ed) The Academic Press, Diego, p dactylid fishes from Australia New Zealand. Sons, New Feeding behavior in two cies in fishes: comparison on coral Academic Press, Diego, p the dusky a tropical rocky thic community. J Exp forest. Mar recovery after primary succession. Fenical W (1992) Chemical marine benthos Volume 46, Press, Oxford, Fenical W (1988) mobile versus their resistance (1996) Succession Monogr 66.67-90 central Chile. Ediciones Universidad marine herbivorous (1982) Dietary herbivorous fishes intertidal zone. Murray SN (1986) Herbivore a seasonally fluctuating temperate intertidal on the assimilated from diets. J Exp Murray SN, herbivorous blenniid fish, the western Trophic relationships marine environment. Proceedings algae in the Guinea. J Exp Mar GP (1992) Interactions herbivorous fishes Acanthuridae (surgeonfishes). Lewis SM herbivorous fishes a Caribbean (1980) The evolution benthic marine macroalgae: laboratory tests (1978) Plant diversity in a marine inter- tidal community: competitive abilities. plant -herbivore Ecol Syst (1993) Community Ecol Prog Miller MW, and sea- (1980) Marine (1997) Feeding (1998) Guild Chilean coast: PS (1978) communities. Environ Fishes 3: Chilean intertidal Editorial responsibility: Otto Kinne (Editor), benthic marine their postulated CH, Renaud feeding prefer- inshore zone. marine fishes. (1992) Design CF (1997) B (1992) seaweeds: an animal interactions benthos Systematics Association Special Press, Oxford, (1983) Benthic surviving digestion urchins. J behavioral sciences. Feeding capabilities central Chile: high a proposed linear selection. Trans (1984) The wave exposure, J Exp central Chilean coast: diversity, abundance and Submitted: November