Effects of a commercial, suspended eastern oyster nursery upon nutrient and sediment chemistry in a temperate, coastal embayment

Meseck, Shannon L.; Li, Yaqin; Dixon, Mark S.; Rivara, Karen; Wikfors, Gary H.; Luther, George W.

doi:10.3354/aei00050

Cited by 9 publications

(10 citation statements)

References 61 publications

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“…Bottom sediments in the area were generally a source of nutrients to the water column (Meseck et al . ). Thus, the changes in nutrients in the mesocosms were attributable to water‐column processes alone, including uptake by phytoplankton and bacteria, and regeneration from microzooplankton and other organisms.…”

Section: Discussionsupporting

confidence: 80%

“…; Meseck et al . ) in addressing questions about possible ‘legacy’ effects of shellfish aquaculture upon plankton dynamics, beyond the loss of cells consumed directly. We conclude that neither selective filtration nor nutrient regeneration by the oysters in this study impacted subsequent plankton and nutrient dynamics.…”

Section: Discussionmentioning

confidence: 99%

“…Nutrient samples were taken following Meseck et al (2012). Briefly, 120 mL of water was filtered through a pre-combusted (450°C overnight), 25mm GF/F filter placed in a low-pressure, syringefilter holder.…”

Section: Measurementsmentioning

confidence: 99%

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Short term effects of a commercial eastern oyster nursery upon nutrient and plankton dynamics of a coastal embayment: observations from mesocosm experiments

Meseck

Dixon

et al. 2013

Aquac Res

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Two mesocosm experiments were conducted to study the interaction of a commercial oyster-nursery system with the surrounding embayment, specifically, nutrient and plankton dynamics. The nursery was stocked with 80-200 L of oysters, sized 3-5 mm. Ambient water and the water passed through the oyster nursery were incubated in mesocosms, and nutrients and plankton were monitored over the course of 27-h incubations. The first experiment conducted in July 2009 captured a phytoplankton community dominated by Peridinium quinquecorne, a rare dinoflagellate not previously reported in the northeastern USA. Dissolved nitrogen compounds in all mesocosms were depleted within the first 6 h. The second experiment was conducted in September 2009, when a more typical and diverse phytoplankton community was present. Unlike the first experiment, Nitrate plus nitrite in the mesocosms was not depleted. Both experiments indicated little difference between the water passed through the oyster nursery and the ambient water in terms of subsequent nutrient and plankton dynamics, indicating little 'legacy effect' of the oyster nursery upon nutrients and plankton in this embayment. This conclusion was reached under the specific operating conditions typical for this nursery system, as chosen by the commercial partner in the study; changes in oyster stocking or flow rate are likely to change the results.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Short term effects of a commercial eastern oyster nursery upon nutrient and plankton dynamics of a coastal embayment: observations from mesocosm experiments

Meseck

Dixon

et al. 2013

Aquac Res

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“…Floating upweller systems have become ubiquitous across the shellfish aquaculture industry as a successful nursery method for culturing oyster seed from 1 mm through 18 mm (Meseck et al. ). Upwellers are so valuable because they create an environment where there is continuous water flow with high food density due to their placement in the top 1 m of the water column.…”

Section: Discussionmentioning

confidence: 99%

“…The advent of FLUPSYs has revolutionized oyster aquaculture and has contributed to the success of the industry today (Meseck et al. ). However, FLUPSYs are not as suitable for growing bay scallops as they are for growing oysters.…”

Section: Nursery Phasementioning

confidence: 99%

Nursery and Grow‐Out Strategy Optimization in Bay Scallop Argopecten irradians Aquaculture

Tobi¹,

Ward²

2019

N American J Aquac

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The northeastern United States once had a robust and profitable wild bay scallop Argopecten irradians commercial fishery that generated revenue for fishermen and quality seafood for regional consumption. Since the 1980s, bay scallop landings have been declining due to overfishing, habitat loss, and coastal water quality degradation. There is potential for bay scallop aquaculture to fill the void left by the decline of the wild fishery. However, further investigation into optimizing growth and survival in the nursery, grow‐out, and overwintering phases is needed. Growth and survival as related to stocking density were investigated during the nursery phase using a floating downweller system. Over the 6‐week nursery period, survival, growth, and food availability were documented in relation to flow rates and initial stocking densities. Initial bay scallop stocking density largely predicted mean bay scallop growth rates (mm/d) over the 6‐week observation period but had little impact on survival. At the end of the observation period, bay scallops were moved out of the nursery system to three different grow‐out locations on Cape Cod. At each location, bay scallops were stocked into three surface gear types (floating bags of two different mesh sizes [6 or 9 mm] or hanging trays) and bottom cages to investigate grow‐out phase strategies. In exposed, high‐energy environments, the surface gear was susceptible to damage, and bay scallop growth rates and survival were impacted. In low‐energy environments, growth rates and survival were similar between surface and bottom gear. In both low‐ and high‐energy environments, bay scallop growth rates (mm/d) declined significantly once temperatures dropped below 15°C. Observed growth rates and survival in the configurations examined in this study indicate that bay scallop farming on New England shellfish farms is viable.

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The East River tidal strait, New York City, New York, a high-nutrient, low-chlorophyll coastal system

Meseck

Dixon

et al. 2018

Int Aquat Res

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The East River tidal strait, located between New York Harbor and Western Long Island Sound, is characterized by high suspended silt concentrations with low organic content kept in suspension by intense tidal currents. Inorganic nutrients, including nitrate, nitrite, ammonia, and phosphate, were high even during the summer. Dissolved inorganic nitrogen (DIN) concentrations generally were above 20 lM and did not likely limit phytoplankton growth. Despite high nutrient concentrations, median chlorophyll a concentration was only 1.53 lg l -1 , making the East River tidal strait a high-nutrient, low-chlorophyll (HNLC) area, likely a result of suspended silt blocking light penetration into the surface water. There were times at which the ratio of mixed layer to depth of the euphotic zone was generally greater than what has been suggested for phytoplankton to produce net primary production. The high-nutrient East River tidal strait is likely one of the sources of nutrients fueling summer phytoplankton production and consequent hypoxia in the Western Long Island Sound as silt settles from surface water in the lower turbulence conditions of the western narrows of Long Island Sound, thereby allowing light penetration and subsequent consumption of dissolved nutrients by phytoplankton.

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Effects of a commercial, suspended eastern oyster nursery upon nutrient and sediment chemistry in a temperate, coastal embayment

Cited by 9 publications

References 61 publications

Short term effects of a commercial eastern oyster nursery upon nutrient and plankton dynamics of a coastal embayment: observations from mesocosm experiments

Short term effects of a commercial eastern oyster nursery upon nutrient and plankton dynamics of a coastal embayment: observations from mesocosm experiments

Nursery and Grow‐Out Strategy Optimization in Bay Scallop Argopecten irradians Aquaculture

The East River tidal strait, New York City, New York, a high-nutrient, low-chlorophyll coastal system

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