Tidal Energy and Sublittoral Macrobenthic Animals in Estuaries

Wildish, D. J.; Kristmanson, D. D.

doi:10.1139/f79-173

Cited by 93 publications

(45 citation statements)

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“…For this reason, sediment type can provide a robust indicator of the suitability of a substratum for clam growth. The significance of the coupled effect of hydrodynamic regime and sediment roughness on filter-feeders' growth was stressed by Wildish & Kristmanson (1979), and the effectiveness of sediment type as an indicator of growth speed is confirmed by the results of our statistical analysis (see Table 2). …”

Section: Methodssupporting

confidence: 71%

Density and temperature-dependence of vital rates in the Manila clam Tapes philippinarum: a stochastic demographic model

Melià¹,

Leo²,

Gatto

2004

Mar. Ecol. Prog. Ser.

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We developed a demographic and management model for the Manila clam Tapes philippinarum (one of the most important commercial mollusc species in Europe) from data collected in the Sacca di Goro lagoon, Italy. Herein, we describe growth and survival processes by 2 submodels incorporating temperature-driven fluctuations in vital parameters, density-dependent effects on survival, and sediment type as an indicator of the hydrodynamic regime. Nonlinear fitting and nonparametric statistics are used to calibrate the body growth and survival models from the available data and to associate a probability distribution to parameter estimates. The 2 models are stochastic in their formulation to account for environmental variability. We assess the suitability of our model to reproduce the life cycle of T. philippinarum at other sites by applying our model to data from the Bassin d'Arcachon (France) and the Eo estuary (Spain). We use Monte-Carlo simulations to forecast the expected biomass yield corresponding to different seeding and harvesting times along with its confidence intervals. The maximum obtainable yield is about 6 kg m -2 and can be obtained by seeding in spring and harvesting in late fall of the following year. We show, however, that there is a tradeoff between maximizing the average yield and minimizing yield variance.

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Section: Methodssupporting

confidence: 71%

Density and temperature-dependence of vital rates in the Manila clam Tapes philippinarum: a stochastic demographic model

Melià¹,

Leo²,

Gatto

2004

Mar. Ecol. Prog. Ser.

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“…Several researchers have used a steady state control-volume analysis to model the sink term and to predict phytoplankton depletion at the bed. For instance, Wildish and Kristmanson (1979) used a massbalance formulation to predict the depletion of phytoplankton over beds of M. edulis. Their model, however, is essentially a one-dimensional formulation.…”

Section: Discussionmentioning

confidence: 99%

The effect of bivalve excurrent jet dynamics on mass transfer in a benthic boundary layer

O'Riordan

Monismith

Koseff

1995

Limnology & Oceanography

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Predictions of phytoplankton depletion by benthic bivalves in shallow, tidally driven estuaries must account for the formation of concentration boundary layers resulting from the dynamic interaction of bivalve siphonal currents with the overlying turbulent boundary layer. To study the near-bed hydrodynamics of the benthic boundary layer, we conducted experiments in a laboratory flume using multiple jets and sinks to represent feeding by the siphonate species Tapes japonica and Potamocorbula amurensis. Refiltration fractions were determined by monitoring the concentration of dye ingested by incurrent siphons, and PLIF (planar laserinduced fluorescence) was used to characterize the concentration fields.Results show that refiltration fractions can be as high as 48% and are a function of several dimensionless parameters: animal spacing (S/d,), velocity ratio (Uj : u*), siphon height (h,ld,), and crossflow Reynolds number (Re,). (S is the mean distance between animals, d, the excurrent siphon diameter, h the animal siphon height, ui the excurrent jet velocity, and u* the mean shear velocity.) WC found that a good estimate of maximum refiltration (n,,, ) based on animal spacing is (nmax, Y/d,) M 2-3 and have incorporated this result into a conceptual mass-transfer model. Differences in concentration profiles calculated from PLIF images are likely due to the relative influence of four sources of turbulence in the Ilow: boundary-layer shear, boundary roughness, jet in a crossflow,, and multiple jet interactions.

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“…3). The influence of water movement on the relative abundance of deposit-and suspension-feeders has been suggested for infaunal macrobenthos (Wildish and Kristmanson, 1979;Roth and Wilson 1998). The patterns found could be common to other biogenic substrates (Tab.…”

Section: Discussionmentioning

confidence: 91%

“…Most suspension-feeders can also ingest deposited matter in some situations (Snelgrove and Butman, 1994), and actual diets of animals in any category can include more than one trophic level (Christian and Luczkovich, 1999). Although the knowledge of diets in the field is still poor for several groups, broad patterns of assemblage structure can be explained using this approach (e.g., Wildish and Kristmanson, 1979;Roth and Wilson, 1998). We compared the trophic structure between Ubatuba and São Sebastião with a contingency table, using a G-test on total abundances.…”

Section: Methodsmentioning

confidence: 99%

“…The interaction between water movement and the distribution of deposit-and suspension-feeding organisms is recognized in macrobenthic communities (Sanders, 1958;Snelgrove and Butman, 1994). Deposit-feeders generally dominate in calm waters with muddy bottoms, while suspension-feeders dominate in sandy bottoms subject to faster currents (Sanders, 1958;Wildish and Kristmanson, 1979;Roth and Wilson, 1998). However, the influence of water movement on the trophic structure of assemblages associated with either biogenic or artificial substrata has received less attention (e.g., Dittman, 1990;Whorff et al, 1995).…”

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confidence: 99%

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The macrofauna associated with the bryozoan <i>Schizoporella unicornis</i> in southeastern Brazil

Morgado¹,

Tanaka²

2001

Sci. Mar.

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SUMMARY:The invertebrate fauna associated with colonies of the bryozoan Schizoporella errata was studied at two sites differing in hydrodynamism in southeastern Brazil. Patterns of species distribution, abundance, and diversity were similar at both sites. Polychaetes dominated the assemblages, both in number of individuals and species, with 70 species distributed in 20 families. Decapod crustaceans were also abundant, mainly anomuran crabs and caridean shrimps. Cluster analysis separated the samples from each site, and further analysis indicated that an interaction between water movement and trophic structure could explain these differences. At the site with low water movement, more muddy sediments were found inside the colonies, and a greater proportion of deposit-feeders was found. At the other site, higher hydrodynamism resulted in less sediments within the colonies, and favoured the occurrence of more filter-feeders. The trophic structure of faunal assemblages can help understand the structure of assemblages associated with biogenic substrata, as already demonstrated for benthic communities.

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Tidal Energy and Sublittoral Macrobenthic Animals in Estuaries

Cited by 93 publications

References 0 publications

Density and temperature-dependence of vital rates in the Manila clam Tapes philippinarum: a stochastic demographic model

Density and temperature-dependence of vital rates in the Manila clam Tapes philippinarum: a stochastic demographic model

The effect of bivalve excurrent jet dynamics on mass transfer in a benthic boundary layer

The macrofauna associated with the bryozoan <i>Schizoporella unicornis</i> in southeastern Brazil

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