Capture efficiency of artificial food particles of post-settlement juveniles of the Greenshell™ mussel, Perna canaliculus

Gui, Yue; Kaspar, Heinrich F.; Zamora, Leonardo N.; Dunphy, Brendon; Jeffs, Andrew

doi:10.1016/j.aquaculture.2016.06.011

Cited by 27 publications

(25 citation statements)

References 35 publications

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“…These studies assessed bivalve growth rates, and did not assess stages of digestive processing beyond particle clearance and rejection in pseudofaeces [ 4 , 17 , 18 ]. The 80% decline in MySpat concentration over 60 min caused by feeding greenshell mussel spat in these studies is again comparable to the rate of BioBullets microparticle clearance in our investigation [ 16 ]. However, while MySpat is specifically designed for juvenile mussels of around 1 mm shell length, BioBullets is more broadscale and can be used to feed larger mussels.…”

Section: Discussionsupporting

confidence: 83%

Microencapsulated diets to improve bivalve shellfish aquaculture

Willer¹,

Aldridge²

2017

R. Soc. open sci.

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Aquaculture is the fastest growing food sector and feeds over 3 billion people. Bivalve shellfish aquaculture makes up 25% of global aquaculture production and is worth annually US$19 billion, but continued growth is currently limited by suboptimal diets and limited tools for disease control. New advances in microencapsulation technology could provide an effective way to overcome these biological limitations. This study demonstrated that a new formulation of microencapsulated diet known as BioBullets could be ingested by a commercially farmed bivalve; the blue mussel Mytilus edulis. Microparticles could be captured by mussels with similar efficiency to natural foods. Microparticles too large for ingestion were rejected in pseudofaeces. Microparticles were successfully ingested and broken down by the gut. Further work is needed to assess the impact of BioBullets diets on bivalve growth. There is now an exciting opportunity to tailor the composition of microencapsulated diets for specific applications to improve production output and efficiency in the commercial bivalve shellfish industry.

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Section: Discussionsupporting

confidence: 83%

Microencapsulated diets to improve bivalve shellfish aquaculture

Willer¹,

Aldridge²

2017

R. Soc. open sci.

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“…Unfortunately, the lack of formulated diets in bivalve culture makes improvement or replacement of natural food difficult, as it has been done in other aquaculture organisms (Hemaiswarya, Raja, Ravi‐Kumar, Ganesan, & Anbazhagan, ). The main limiting factor about elaborating formulated feed for bivalves is the small size of the particles (1–15 µm) that they eat (Gui, Kaspar, Zamora, Dunphy, & Jeffs, ; Knauer & Southgate, ). In hatchery, live microalgae have proven to meet most of their nutritional requirements (Guedes & Malcata, ; Hemaiswarya et al, ).…”

Section: Mean Biochemical Composition Of Microalgae (Mazón‐suástegui mentioning

confidence: 99%

Influence of hatchery rich‐carbohydrate diet on the oyster Crassostrea corteziensis (Hertlein, 1951) farming

Mazón‐Suástegui

Leyva-Miranda²,

Arrieche‐Galíndez

et al. 2019

Aquac Res

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“…Since the 1990s commercial and research hatcheries worldwide have repeatedly identified a strong need for alternative diets to replace live microalgae, but to date no satisfactory product has been developed (Gui et al, 2016a; Helm and Bourne, 2004; Knauer and Southgate, 1999). …”

Section: Introductionmentioning

confidence: 99%

“…A microencapsulated diet consists of a formulation of nutrients and agents surrounded by a digestable capsule. Since the 1970s a small number of studies have tried using microencapsulated feeds including ‘MySpat’ (INVE Technologies, Dendermonde, Belgium) and ‘Frippak’ (Frippak Feeds, Basingstoke, Great Britain) to feed bivalves (Gui et al, 2016b, 2016a, Nevejan et al, 2007, 2008). These feeds are not directly representative of a natural bivalve diet; MySpat contains lipids originating from fish oils and protein from terrestrial vegetable origin, and Frippak is designed for shrimp and fish feeding (Langdon, 2003; Nevejan et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Microencapsulated diets to improve growth and survivorship in juvenile European flat oysters (Ostrea edulis)

Willer

Aldridge

2019

Aquaculture

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Sustainable expansion of aquaculture is critical to global food security, and bivalve shellfish aquaculture represents a sustainable method to provide people with affordable nutritious food. Oysters represent 54% of the global bivalve market by value, with propagation of juveniles within hatcheries critical to allow the industry to grow. Growth and survival of juvenile oysters in hatchery systems is constrained by suboptimal feed. The live algal feed currently used is expensive, of variable quality, contamination prone, and the high level of skill and equipment required limits where hatcheries can be located. We demonstrate how a novel microencapsulated diet can increase the growth and survivorship of Ostrea edulis (European flat oyster) juveniles in both the laboratory and hatchery setting. The microcapsules are easily produced in large quantities, stable for long term storage, and can be customised to have exceptionally high levels of nutrients key for oyster growth. O. edulis larvae fed a combined diet of microcapsules and algae for 8 days had a 46% greater increase in maximum size, 171% greater increase in minimum size, and 5% higher survival than larvae fed algae alone. O. edulis spat of 4 mm fed the combined diet for 7 weeks also had significantly greater survivorship (16% greater in hatchery, 58% greater in laboratory) and growth comparable (hatchery) or better (laboratory experiments) than algae alone. Further tailoring of the nutritional composition of microcapsules to specific bivalve species or growth stages could allow microcapsules to replace a greater proportion of or even completely replace algal diets. There is potential for these diets to revolutionise bivalve shellfish farming globally.

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Capture efficiency of artificial food particles of post-settlement juveniles of the Greenshell™ mussel, Perna canaliculus

Cited by 27 publications

References 35 publications

Microencapsulated diets to improve bivalve shellfish aquaculture

Microencapsulated diets to improve bivalve shellfish aquaculture

Influence of hatchery rich‐carbohydrate diet on the oyster Crassostrea corteziensis (Hertlein, 1951) farming

Microencapsulated diets to improve growth and survivorship in juvenile European flat oysters (Ostrea edulis)

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