Non-trophic Interactions Control Benthic Producers on Intertidal Flats

Donadi, Serena; Westra, Joelle; Weerman, Ellen J.; Heide, Tjisse van der; Zee, Els M. van der; Koppel, Johan van de; Olff, Han; Piersma, Theunis; Veer, Henk W. van der; Eriksson, Britas Klemens

doi:10.1007/s10021-013-9686-8

Cited by 47 publications

(65 citation statements)

References 60 publications

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“…7). Overall, our results suggest that cockles facilitated young generations by increasing sediment stability at the sandy sites and by alleviating the effects of organic enrichment at the mussel bed sites, thus acting as both sediment stabilizators (Andersen et al, 2010;Donadi et al, 2013b) and bioturbators (Flach, 1996;Montserrat et al, 2009;Neumeier et al, 2006).…”

Section: Discussionmentioning

confidence: 89%

“…At sandy sites characterized by rough hydrodynamic conditions, high densities of cockles promoted an average increase in bed level of 2 cm in twelve plots of 25 m −2 during summer time. Sediment stabilization by cockles was previously documented in the experimental plots (Donadi et al, 2013b) and could be due to the joined effect of functional and structural traits of cockles (i.e. production of mucus-rich biodeposits and protruding shells from the substrate).…”

Section: Discussionmentioning

confidence: 99%

“…Cockles live in the upper few cm of the sediment and can occur in dense assemblages of many thousands m −2 (Jensen, 1992). Although several studies emphasized the bioturbating effects of cockles (Flach, 1996;Neumeier et al, 2006), high densities of cockles can also increase sediment stability through the production of mucus-rich biodeposits and facilitation of sedimentbinding diatom colonies (Ciutat et al, 2007;Donadi et al, 2013b). Sediment stabilization may affect cockle recruitment and post-larval processes (Bouma et al, 2001;Kater et al, 2006;Piersma et al, 2001), for instance by enhancing the ability of juvenile bivalves to anchor themselves to the substrate, thereby buffering negative effects of waves and currents (Armonies, 1996;Armonies and Hellwig-Armonies, 1992).…”

Section: Introductionmentioning

confidence: 99%

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The bivalve loop: Intra-specific facilitation in burrowing cockles through habitat modification

Donadi

Zee

Heide

et al. 2014

Journal of Experimental Marine Biology and Ecology

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a b s t r a c t a r t i c l e i n f oHuman exploitation of bivalve populations has changed intertidal landscapes worldwide. Many bivalves are ecosystem engineers that modify the physical environment, affecting the conditions for their survival. Here we argue that lack of recovery of overexploited intertidal bivalve beds may be partly caused by the loss of important biological feedbacks from depleted populations. In a large-scale experiment we investigated engineering effects of cockles (Cerastoderma edule L.) and lugworms (Arenicola marina L.) on juvenile cockles by adding high densities of either species to 5 × 5 m plots in areas with different hydrodynamic and sediment conditions in the intertidal flats of the Wadden Sea. We hypothesized that cockles would facilitate the new generations by increasing sediment stability, while lugworms would have negative effects on juvenile cockles through sediment disturbance. We found that in sandy areas with high wave and current energy cockles enhanced sediment accumulation and promoted local densities of young cockles, while lugworms did not have any effect on juvenile cockles. In muddy sites sheltered from the tidal currents by mussel reefs (Mytilus edulis L.), juvenile cockle densities were generally high, demonstrating the general importance of biological engineering for recruitment processes in the intertidal. We suggest that the acknowledgement of positive feedbacks between bivalves and sediment stability is essential to achieve long-term restoration goals in coastal ecosystems.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The bivalve loop: Intra-specific facilitation in burrowing cockles through habitat modification

Donadi

Zee

Heide

et al. 2014

Journal of Experimental Marine Biology and Ecology

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“…Area with mussels Area without mussels a Di ke Accordingly, coastward of mussel beds, exposure to currents and sediment erosion is reduced, and the microphytobenthos, which is limited mainly by sediment erosion on tidal flats, increases strongly both on and in the muddy plume around the mussel beds (Donadi et al 2013b). However, the mussel beds also deplete food availability in the water and cause degenerated sediment conditions through the deposition of organic material.…”

Section: Van De Koppel Et Almentioning

confidence: 99%

“…It could also result from consumers entering a habitat as juveniles, as has been found on coral reefs. The second type arises from long-distance competition through depletion by mobile resources, such as the depletion of algae from the water column over a mussel bed, which affects cockle growth in the mussel bed's wake, as observed in the Wadden Sea (Donadi et al 2013b). A third type could be caused by a supply of nonliving substances moving from one ecosystem to another, in the form of fluxes of nutrients or organic matter, as was found in salt marshes and kelps subsidizing offshore areas (Duggins et al 1989).…”

Section: Types Of Long-distance Interactionsmentioning

confidence: 99%

Long-Distance Interactions Regulate the Structure and Resilience of Coastal Ecosystems

Koppel

Heide

Altieri

et al. 2015

Annu. Rev. Mar. Sci.

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Mounting evidence indicates that spatial interactions are important in structuring coastal ecosystems. Until recently, however, most of this work has been focused on seemingly exceptional systems that are characterized by regular, self-organized patterns. In this review, we document that interactions that operate at long distances, beyond the direct neighborhood of individual organisms, are more common and have much more far-reaching implications for coastal ecosystems than was previously realized. We review studies from a variety of ecosystem types-including cobble beaches, mussel beds, coral reefs, seagrass meadows, and mangrove forests-that reveal a startling interplay of positive and negative interactions between habitats across distances of up to a kilometer. In addition to classical feeding relations, alterations of physical conditions constitute an important part of these long-distance interactions. This entanglement of habitats has crucial implications for how humans manage coastal ecosystems, and evaluations of anthropogenic impact should explicitly address long-distance and system-wide effects before we deem these human activities to be causing little harm.

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Hatchery capacity needed to support large‐scale Atlantic surfclam fishery enhancement

Gilsinan,

Borsetti,

Munroe

et al. 2023

Aquaculture Fish & Fisheries

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Fishery enhancement methods are being explored globally to sustain commercial and recreational fisheries through improving the productivity and management of marine populations impacted by anthropogenic stressors. It is expected that access to important Atlantic surfclam fishing grounds will be limited or lost due to growing overlap with offshore wind energy development. This study explores the economic viability of large‐scale hatchery production to improve fishery access and potentially offset additional costs, reduced revenues and potential job losses associated with the displacement of the fishing fleet. Reports and primary literature were used to understand the growth and survival of Atlantic surfclams in hatchery and nursery settings to calculate the scale of hatchery efforts needed to support one million (1M) bushels of fishery‐sized clams (>120 mm). Data on labour, energy, construction and material inputs and costs for hatchery and nursery production were gathered by analysing available literature and information provided by hatchery managers, researchers and others knowledgeable about shellfish hatchery production. A techno‐economic cost model and Monte Carlo analyses were employed to explore average costs and their variability. This study suggests that 374M–2.1B Atlantic surfclams are needed at the end of the hatchery stage to produce 1M bushels of market‐sized product. Total production costs range from $3.7 to $15.1M, including $2.9–$13.3M in hatchery costs and $800K–$1.9M in nursery costs. Under current market conditions, where Atlantic surfclams regularly sell for $14–$17/bushel, this analysis suggests that hatchery production could be considered a viable fishery enhancement method that supports human access to the fishery, though several additional questions remain.

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Non-trophic Interactions Control Benthic Producers on Intertidal Flats

Cited by 47 publications

References 60 publications

The bivalve loop: Intra-specific facilitation in burrowing cockles through habitat modification

The bivalve loop: Intra-specific facilitation in burrowing cockles through habitat modification

Long-Distance Interactions Regulate the Structure and Resilience of Coastal Ecosystems

Hatchery capacity needed to support large‐scale Atlantic surfclam fishery enhancement

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