Spat Production of the Rock Oyster <i>Striostrea prismatica</i> (Gray, 1825)

Lodeiros, César; Márquez, Adrian; Revilla, Jormil; Rodríguez, Daniel; Sonnenholzner, Stanislaus

doi:10.2983/035.036.0322

Cited by 11 publications

(19 citation statements)

References 16 publications

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“…Then, the oysters were conditioned to spawning and larval development following Argüello‐Guevara et al. (2013) and Lodeiros et al (2017). All developing embryos were transferred to two 1000‐L incubation tanks, with observations made regularly to ensure that embryonic progressed normally.…”

Section: Methodsmentioning

confidence: 99%

“…D larvae were fed with Tl during the first two days PF and afterwards were fed with classic mix named as control in this experiment, a combination Tl + Cg, as shown in Lodeiros et al. (2017). We started our evaluations on the third day PF looking for a selective classification of larvae, ensuring that only those of more than 70 μm (shell length) were kept for culture purposes.…”

Section: Methodsmentioning

confidence: 99%

“…Experiments were performed in two phases, according to the general description of the larval development in Lodeiros et al. (2017). Phase I involved veliger larvae (3 days PF; 75–77 µm dorsoventral‐DV length) to early umbonated larval stage (8–10 days PF); and phase II involved from umbonated stage (11 days PF; 120–150 µm DV length, ± SD ) to eyespot larvae (18–20 days PF).…”

Section: Methodsmentioning

confidence: 99%

“…On day 22nd PF, when the cultivated larvae (raised in 1,000‐L tanks and fed with the control mixture Tl + Cg diet) were competent for metamorphosis presenting eyespot, foot and a dorsoventral length of 298.5 ± 14.92 µm, according to Lodeiros et al. (2017), they were transferred to the settling systems (2‐L plastic containers, with a bottom of 150‐µm mesh, and operational volume of 1.5 L) at a density of 1 larvae/mL by triplicate for evaluation of 5 substrates. Each substrate was previously autoclaved and distributed in the containers occupying 25% of the bottom area.…”

Section: Methodsmentioning

confidence: 99%

“…(2013) provide a strategy to condition broodstock in the laboratory, achieving maturation and spawning in captivity. These techniques allowed characterizing the embryonic and larval development as well as the production of 5 mm spat, establishing initial cultivation methods by Lodeiros, Márquez, Revilla, Rodríguez‐Pesantes, and Sonnenholzner (2017). However, more research is needed to optimize the massive spat production of S. prismatica , particularly to find appropriate microalgal diets and substrates for larval settlement, which are two of the main causes hindering the commercial activity of bivalve molluscs (Loosanoff & Davis, 1963; Helm & Bourne, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Microalgal diet evaluation in the larval development and substrate selection for settlement in the rock oysterStriostrea prismatica (Gray, 1825)

et al. 2020

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Monoalgal and bialgal diet were tried in 2 stages of larval development of Striostrea prismatica: phase I from mixotrofic to early umbonated veliger larva and phase II until eyespot larvae. The monoalgal diets in phase I were Tisochrysis lutea, Pavlova lutheri and Nannochloropsis sp. In phase II, Tetraselmis suecica, T. chuii, Chaetoceros gracilis and Ch. muelleri were incorporated. The bialgal diets (combination of P. lutheri + Ch. gracilis in proportions 1:3, 1:1 and 3:1) were chosen according to the results of the monoalgal trials and were evaluated against the classic diet = control (T. lutea + Ch. gracilis). The microalgae size and their fatty acid composition were determined. We recommend the combination T. lutea + Ch. gracilis, initially using T. lutea for mixotrophic larvae (6 days Post Fertilization‐PF), then incorporating Ch. gracilis in a ratio of 1:1 until completing phase I (8–10 PF). In phase II, the ratio should change to 1:3 until larvae with eyespot are obtained (18–20 PF). Suggestions were based on the higher demand for DHA in initial larvae and the need for EPA from the early umbonated phase. Finally, as a third experiment, microsubstrates (pieces of shells, sandpaper, polycarbonate and ground rubber) were evaluated to promote the settlement of pediveliger larvae. A settlement of 20% was obtained in pieces of shells of the same species. We consider that the settlement technology has not been optimized; therefore, evaluations directed at the behaviour of the species are recommended.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microalgal diet evaluation in the larval development and substrate selection for settlement in the rock oysterStriostrea prismatica (Gray, 1825)

et al. 2020

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Combined Effects of Local and Regional Drivers on Oyster Spat Density and Growth in Eastern Australia

Wills,

Henderson,

Olds

et al. 2024

Estuaries and Coasts

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Up to 85% of shellfish reefs have been lost worldwide, resulting in declining ecosystem services, and increasing restoration demand. However, more information regarding the conditions which maximise oyster settlement and growth is required to optimise restoration. We deployed oyster settlement tiles at 21 intertidal sites throughout Moreton Bay, Australia; a region where > 96% of rock oyster reefs are lost and demand for restoration is high. We quantified effects of variables describing the spatial (from GIS), local habitat (using quadrats and water quality measures), and oyster predator (using underwater videography) characteristics of sites on oyster density and size on tiles. Oyster density was highest at sites with intermediate predator abundance and temperature, highest nearby invertebrate cover, and low and high values of turbidity and nearby rock and algae cover. Conversely, oyster size was highest at sites with intermediate predator density, higher fish species richness and turbidity, and lowest temperatures. Together, this showed that optimal restoration requires sites with 22 to 23 °C average water temperatures, between 10 and 15 oyster predators, and either low (< 2 NTU) or high (> 6 NTU) turbidity levels. Notably, we observed multiple peaks for several variables, suggesting the potential presence of multiple cryptic oyster species on settlement tiles. We found that oysters shared preferred environmental conditions with polychaetes, coralline algae, and tunicates, and were more prevalent and abundant at sites with lower turf algae, barnacle, and mussel cover. Identifying environmental variables influencing oyster population distribution, settlement, and growth can guide the selection and approach of oyster restoration sites.

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Evaluating spawning induction methods for the tropical black-lip rock oyster, Saccostrea echinata

Nowland

O’Connor

Elizur

et al. 2021

Aquaculture Reports

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Spat Production of the Rock Oyster Striostrea prismatica (Gray, 1825)

Cited by 11 publications

References 16 publications

Microalgal diet evaluation in the larval development and substrate selection for settlement in the rock oysterStriostrea prismatica (Gray, 1825)

Microalgal diet evaluation in the larval development and substrate selection for settlement in the rock oysterStriostrea prismatica (Gray, 1825)

Combined Effects of Local and Regional Drivers on Oyster Spat Density and Growth in Eastern Australia

Evaluating spawning induction methods for the tropical black-lip rock oyster, Saccostrea echinata

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