The Role of Mineral, Living and Artificial Substrata in the Development of Subtidal Assemblages

Davis, Andrew R.

doi:10.1007/b76710_2

Cited by 16 publications

(11 citation statements)

References 109 publications

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“…Diatoms play a crucial role for macroalgal settlement (Davis 2009), and thus might facilitate or inhibit their settlement (Connell and Slatyer 1977). Mucilaginous diatom tubes (TDD) can alter the microstructure and threedimensionality of the early benthic assemblages, through production of extracellular polymers that can facilitate settlement (Lam et al 2005) and support a variety of epiphytic species (Round et al 1990).…”

Section: Discussionmentioning

confidence: 99%

Changes in Coastal Benthic Algae Succession Trajectories and Assemblages Under Contrasting Nutrient and Grazer Loads

Fricke

Kopprio

Alemany

et al. 2015

Estuaries and Coasts

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Eutrophication plays a crucial role in coastal systems, driving changes in the composition and abundance of flora and fauna with consequent effects for the entire ecosystem. Sensitive to nutrient levels, micro-and macroalgal blooms serve as valuable indicators of eutrophication. The San Antonio Bay (Northern Argentinean Patagonia, 40°43′ S, 64°56′ W) provides an appropriate system to study in situ eutrophication processes on coastal communities. In a multiscale approach, using two different kind of settlement substrates (micro: polyethylene terephthalate, and macro: ceramic), the present study followed benthic algal dynamics over one year, distinguishing changes in natural succession and seasonality. Strong differences were found in the biofilm assemblages after three days, marked by tube dwelling diatoms and Cocconeis spp. under high nutrient-grazer conditions and needle like diatoms (e.g. Nitzschia spp., Tabularia spp.) under lower nutrient-grazer loads. The succession continued by the colonization of macroalgae, with a higher recruitment rate in the nutrient and grazer rich environment with a concomitant higher diversity. Our results show that under higher nutrientgrazer conditions natural benthic succession not only differs in trajectory but in its final taxa composition promoting higher biodiversity and biomass accumulation. In addition, taxa specific substrate preferences interfere with the observed eutrophication pattern, suggesting substrate dependant interrelations between the bloom forming taxa. These findings provide evidence that nutrient enrichment can not only affect an established assemblage but also affect the early succession stages, changing the succession trajectory and thus the final assemblage.

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Section: Discussionmentioning

confidence: 99%

Changes in Coastal Benthic Algae Succession Trajectories and Assemblages Under Contrasting Nutrient and Grazer Loads

Fricke

Kopprio

Alemany

et al. 2015

Estuaries and Coasts

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“…Some substrate features, such as exposure, slope, surface heterogeneities and roughness have been invoked as causal factors influencing barnacle aggregation at small spatial scales (Knight-Jones 1953;Crisp & Barnes 1954;Crisp 1974Crisp , 1976Denley & Underwood 1979;Paine & Levin 1981;Wethey 1986;Raimondi 1990;Lively et al 1993;Bourget et al 1994;Hills & Thomason 1996Lemire & Bourget 1996;Lapointe & Bourget 1999;Davis 2009). For example, in energetic splash zones, barnacles survive better in crevices, avoiding adjacent horizontal surfaces, where the mechanical stresses and the risk of desiccation are greater (Foster 1971;Bergeron & Bourget 1986;Chabot & Bourget 1988;Menge & Branch 2001).…”

Section: Introductionmentioning

confidence: 99%

The influence of the rock mineralogy on population density ofChthamalus(Crustacea: Cirripedia) in the Ligurian Sea (NW Mediterranean Sea)

Canessa

Bavestrello

et al. 2019

The European Zoological Journal

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Settlement, recruitment and survival of sessile marine species are driven by many biotic and abiotic factors. Among them, substrate mineral composition is generally a neglected topic, despite it proved to be a relevant contributing variable in driving the structure of benthic communities. Thanks to their ecology, Chthamalus species are a good proxy to test the role of substrate in affecting settlement and final population density on exposed rocky shores. Differences in the number of individuals were analysed in eight localities along the Eastern Ligurian Riviera (north-western Mediterranean Sea), from Portovenere to Manara Cape. In this sector of the Ligurian littoral, the coast is constituted by different rocks characterised by variable concentrations of calcite, silicates and quartz. This situation constitutes an ideal setting to evaluate the influence of mineral composition of the rocks in structuring the epilithic macrobiota communities in energetic splash zones and under similar physical pressures. Rocks rich in calcites turned out to be more suitable for Chthamalus species than substrates containing high amounts of silicates, and of quartz in particular. Additionally, also the grain size of the main mineral component of the rocks, determining in turn the surface roughness seemed to influence barnacle densities, with a significant preference for finer-grained substrates.

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“…These considerations are not new to environmental scientists but, as reported in a recent review on the topic (Davis 2009), it is difficult to disentangle the properties of natural mineral substrata that may affect the structure of benthic communities, both on soft and hard bottoms. Owing to the rapidity of biofilm formation, it has always been assumed that larvae interact with surface biofilms, rather than with natural rock surfaces (Wahl 1989;Hadfield 2011).…”

Section: The Effects Of Minerals On Animal Growth and Developmentmentioning

confidence: 99%

Biomedical Inorganic Polymers

Müller¹,

Wang²,

Schröder³

2013

Progress in Molecular and Subcellular Biology

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The Role of Mineral, Living and Artificial Substrata in the Development of Subtidal Assemblages

Cited by 16 publications

References 109 publications

Changes in Coastal Benthic Algae Succession Trajectories and Assemblages Under Contrasting Nutrient and Grazer Loads

Changes in Coastal Benthic Algae Succession Trajectories and Assemblages Under Contrasting Nutrient and Grazer Loads

The influence of the rock mineralogy on population density ofChthamalus(Crustacea: Cirripedia) in the Ligurian Sea (NW Mediterranean Sea)

Biomedical Inorganic Polymers

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