Recent Trends in Live Feeds for Marine Larviculture: A Mini Review

Pan, Yen‐Ju; Dahms‬, Hans-Uwe; Hwang, Jiang‐Shiou; Souissi, Sami

doi:10.3389/fmars.2022.864165

Cited by 21 publications

(20 citation statements)

References 127 publications

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“…Poor growth performance in larval rockfish fed the CP42 and CP46 diets could be due to their lower methionine content compared to dietary methionine requirement reported [ 36 ]. Generally speaking, the smaller or younger fish required high nutrition requirements than the larger or older ones [ 3 , 6 ]. The diets CP42 and CP46 and the crumble diets seemed to contain relatively low EAA content in most of EAA over the diets CP54 and CP58 and IV and LL diets in this study.…”

Section: Discussionmentioning

confidence: 99%

“…This fish was adopted in Korea due to its hardiness, fast-growing nature, and ability to grow at low temperatures [ 2 ]. Marine fish larvae are susceptible to nutritional challenges in the early developmental stages [ 3 ], and this is also applicable to rockfish larvae. A bottleneck to the production of rockfish is its low survivability at the larval stages, which can be attributed to feeding [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Optimal Protein Required in Granulated Microdiets for Rockfish (Sebastes schlegeli) Larvae

Jang¹,

Olowe

Cho

2022

Aquaculture Nutrition

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Protein is an essential nutrient that supports fish growth, and the inadequacy in formulating their diets with an optimum protein level can deteriorate their growth performance. The protein requirement in granulated microdiets was estimated for rockfish (Sebastes schlegeli) larvae. Five granulated microdiets (CP42, CP46, CP50, CP54, and CP58) containing 42% to 58% crude protein levels with a 4% increment at a constant gross energy level (18.4 kJ/g diets) were prepared. The formulated microdiets were also compared with imported microdiets, Inve (IV) and love larva (LL) from Belgium and Japan, respectively, and a locally marketed feed (crumble). At the cessation of the study, the survival of larval fish was not different ( P > 0.05 ), but the weight gain (%) of fish fed the CP54, IV, and LL diets was significantly ( P < 0.0001 ) higher than that of larval fish fed the CP58, CP50, CP46, and CP42 diets. The crumble diet achieved the poorest weight gain of larval fish. Furthermore, the total length of rockfish larvae fed the IV and LL diets was significantly ( P < 0.0001 ) longer than that of the fish fed all other diets. The chemical composition of the fish’s whole body, except for ash content, was not influenced by the experimental diets. The experimental diets affected essential amino acid profiles, such as histidine, leucine, and threonine, and nonessential amino acid profiles, such as alanine, glutamic acid, and proline of the whole body of larval fish. Conclusively, based on the broken line analysis of weight gain of larval rockfish, protein requirement in granulated microdiets was estimated to be 54.0%.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of the Optimal Protein Required in Granulated Microdiets for Rockfish (Sebastes schlegeli) Larvae

Jang¹,

Olowe

Cho

2022

Aquaculture Nutrition

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“…The copyright holder for this preprint (which this version posted April 14, 2023. ; https://doi.org/10. 1101 To grow N. vectensis, the most common feeding protocol is based on commercial stocks of Artemia salina (Decapoda) cysts that easily hatch into nauplii (Pan et al, 2022). During initial juvenile developmental phase of N.…”

Section: Introductionmentioning

confidence: 99%

Optimized husbandry and targeted gene-editing for the cnidarianNematostella vectensis

Carvalho

Burtin

Detournay³

et al. 2023

Preprint

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Optimized laboratory conditions for research models are crucial for the success of scientific projects. This includes the control of the entire life cycle, access to all developmental stages and maintaining stable physiological conditions. Reducing the life cycle of a research model can also enhance the access to biological material and speed up genetic tool development. Thus, we optimized the rearing conditions for the sea anemone Nematostella vectensis, a cnidarian research model to study embryonic and post-metamorphic processes, such as regeneration. We adopted a semi-automated aquaculture system for N. vectensis and developed a dietary protocol optimized for the different life stages. Thereby, we increased spawning efficiencies and post-spawning survival rates, and considerably reduced the overall life cycle down to two months. To further improve the obtention of CRISPR-Cas9 mutants, we optimized the design of sgRNAs leading to full KO animals in F0 polyps using a single sgRNA. Finally, we show that NHEJ-mediated transgene insertion is possible in N. vectensis. In sum our study provides additional resources for the scientific community that uses or will use N. vectensis as a research model.

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“…Planktonic copepods are natural and preferable feeds for fish and invertebrate larvae in marine environment and are widely used as live feed in marine larviculture hatcheries (Drillet et al, 2011;Santhanam et al, 2019;Fernández-Ojeda et al, 2021;Pan et al, 2022), especially some species of paracalanid family, such as Parvocalanus carssirostris (Alajmi & Zeng, 2015;Kline & Laidley, 2015;Valencia et al, 2022), Bestiolina similis (McKinnon et al, 2003;Camus et al, 2009;VanderLugt et al, 2009;Camus & Zeng, 2010;Camus et al, 2021), and Bestiolina amoyensis (Wang et al, 2021). Small body size and the herbivorous characteristics make them good candidates as larvae prey for fish larvae with small mouth gape (Wang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Embryo Development and Effects of Temperature, Salinity, and Light Intensity on Egg Hatching of Calanoid Copepod Bestiolina amoyensis (Calanoida: Paracalanidae)

Wang

Wang²,

Wang³

et al. 2022

Front. Mar. Sci.

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Bestiolina amoyensis distributes in subtropical inshore waters across the Pacific Ocean, with a relatively long reproductive lifespan and high intrinsic population increase rate compared with other small paracalanid species, which makes it a good candidate to develop culture techniques for hatchery larval rearing. However, the reproductive biology of this subtropical broadcast spawning species is still largely unknown. The present investigation provides the first published data on the embryo development and effects of different light intensities (0, 500, and 1,000 lx), temperatures (16°C, 18°C, 20°C, 22°C, 24°C, 26°C, 28°C, 30°C, 32°C, and 34°C), and salinities (22, 24, 26, 28, 30, 32, and 34 psu) on hatching success rates of B. amoyensis. The same batch of eggs were collected from gravid females to observe their embryonic development and incubated under designed light intensities, temperatures, and salinities. Results showed that the whole embryonic development of B. amoyensis lasted, on average, 6 h and 40 min at 26°C, and egg hatching time of B. amoyensis shortened exponentially with the increasing temperature. The highest egg hatching rate (100%) was recorded from the 0-lx treatment, indicating that the dark condition was favorable for the egg incubation of B. amoyensis. The optimum temperature and salinity range for the hatching success of B. amoyensis was 22°C–30°C (above 94%) and 22–34 psu salinity (above 88%), respectively, indicating that B. amoyensis had wide adaptability to temperature and salinity. Light and too low or high temperature leads to abnormal embryonic development and malformed nauplii. The relatively wide adaptability to temperature and salinity and fast embryo development also suggests that B. amoyensis was a good candidate as live feed for hatchery larval rearing.

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Recent Trends in Live Feeds for Marine Larviculture: A Mini Review

Cited by 21 publications

References 127 publications

Evaluation of the Optimal Protein Required in Granulated Microdiets for Rockfish (Sebastes schlegeli) Larvae

Evaluation of the Optimal Protein Required in Granulated Microdiets for Rockfish (Sebastes schlegeli) Larvae

Optimized husbandry and targeted gene-editing for the cnidarianNematostella vectensis

Embryo Development and Effects of Temperature, Salinity, and Light Intensity on Egg Hatching of Calanoid Copepod Bestiolina amoyensis (Calanoida: Paracalanidae)

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