Bivalve production and food chain efficiency in an experimental nursery system

Rodhouse, P. G.; Ottway, Brian; Burnell, Gavin

doi:10.1017/s0025315400046038

Cited by 24 publications

(8 citation statements)

References 21 publications

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“…Standard upweller silos are ideal for oysters, quahogs, or softshell clams because the animals can grow well when stacked many levels deep as long as oxygen and food density are sufficient (Rodhouse et al. ; McCausland et al. ).…”

Section: Discussionmentioning

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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Section: Discussionmentioning

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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“…one may succeed in obtaining a certain control over the composition of algal populations even on a large scale (several authors quoted in De Pauw, 1981, and . Positive results were also obtained with properly enriched large-scale cultures of Skeletonema and Chaetoceros in France, Ireland and Japan, respectively, by Shigueno (1975), Riva & Lelong (1981), and Rodhouse, et al(1981) and with the mass production of Chlorella for rearing of Brachionus (Hirata, 1979) in Japan . In seawater could, in large-scale cultures, experimentally induce a replacement of algae like Chlorella and Phaeodactylum, unsuited for oysters and clams, by better genera such as Skeletonema, Nitzschia and Chaetoceros .…”

Section: Progress and Constraintsmentioning

confidence: 93%

“…As collapse of mass cultures of microalgae owing to predatoon is very unpredictable in practice, the maintenance of cultures in duplicate seems to be an absolute necessity in aquaculture operations (Scura, et al 1979 ;Rodhouse, et al 1981 ;De Pauw, et a1 1983) .…”

Section: Progress and Constraintsmentioning

confidence: 99%

Mass culture of microalgae in aquaculture systems: Progress and constraints

Pauw¹,

Morales²,

Persoone³

1984

Hydrobiologia

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“…Hughes 1970, Hummel 1985, Rodhouse et al 1981, Streit 1976), the nine sub-populations investigated require between 82 mg Corg (cidaroid no. 3) and 2437 mg Corg (cidaroid no.…”

Section: Somatic and 9onad Productionmentioning

confidence: 99%

Lissarca notorcadensis (Bivalvia: Philobryidae) living on Notocidaris sp. (Echinoidea: Cidaridae): Population dynamics in limited space

et al. 1993

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Summ~,ry. Population dynamics of the epizoic bivalveLissarca notorcadensis living on spines of cidaroid sea urchins in the Weddell Sea were investigated. Total productior~ (somatic & gonad) of the suspension feeding bivalve ranged between 16.5 and 487.4 mg AFDM y-1 per sea urchin. Annual sedimentation rates are not sufficient to mai~:ttain the production of the Lissarca sub-populations carried by the sea urchins, and resuspension of organic; matter is most likely to be an important food source. The ratio of the number of freshly settled juveniles to the J:umber of embryos brooded is between 0.054 and 0.207 aad seems negatively related to the biomass already present, indicating intraspecific competition for space. Intersp:.'cific competition for space is caused by the strong preferel:tce of L. notorcadensis as well as other epizoa (coloni:~.l anthozoans and bryozoans) for the spines located on the aboral hemispere of the sea urchins.

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Bivalve production and food chain efficiency in an experimental nursery system

Cited by 24 publications

References 21 publications

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

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

Mass culture of microalgae in aquaculture systems: Progress and constraints

Lissarca notorcadensis (Bivalvia: Philobryidae) living on Notocidaris sp. (Echinoidea: Cidaridae): Population dynamics in limited space

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