Improved survival and growth in Octopus vulgaris paralarvae by feeding large type Artemia and Pacific sandeel, Ammodytes personatus

Okumura, Shigenobu; Kurihara, Ayako; Iwamoto, Akio; Takeuchi, Toshio

doi:10.1016/j.aquaculture.2004.11.044

Cited by 69 publications

(54 citation statements)

References 13 publications

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“…Recent studies have reported that fatty acids have a critical role in the nutrition of the common octopus Octopus vulgaris both during paralarval stages and during growth of juveniles (Navarro and Villanueva 2003;Miliou et al 2005;Okumura et al 2005). In all these studies the authors placed special emphasis on the DHA/EPA proportion as a key factor to explain differences in the survival and growth of the common octopus.…”

Section: Discussionmentioning

confidence: 97%

The use of alternative prey (crayfish, Procambarus clarki, and hake, Merlucius gayi) to culture Octopus vulgaris (Cuvier 1797)

et al. 2009

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The effects of two alternative prey (crayfish and hake) were tested on growth and survival of both juveniles and adults of Octopus vulgaris in two experiments. Octopuses fed the control (squid) were larger (3.0 ± 0.7 kg) than those fed crayfish (2.4 ± 0.6 kg) at the end of experiment I. Similarly, overall growth rates were higher for octopuses fed squid (1.7 ± 0.3 and 1.2 ± 0.2 %BW day -1 , respectively). Average feeding rates for the experiment were not different, being 6.5 ± 0.9 and 7.5 ± 0.9 %BW day -1 , respectively, for octopuses fed either squid or crayfish. Nevertheless, food conversions for the experiment were higher (42.4 ± 2.7%) for octopuses fed squid compared to the ones fed crayfish (23.9 ± 1.9 g). For experiment II, hake and crayfish were compared to squid; the final weight of octopuses fed squid, hake or crayfish was 1,183.0 ± 242.7 g, 1,175.6 ± 240.1 g and 922.3 ± 160.1 g, respectively. Overall growth rates for the experiment were 1.9 ± 0.2 %BW day -1 , 1.9 ± 0.3 %BW day -1 and 1.1 ± 0.3 g, respectively. Final weight and growth rates were never different (P [ 0.05) between octopuses fed squid and hake, but were always higher (P \ 0.05) compared to the ones fed crayfish. Average feeding rates for experiment II were similar for the three diets, and of 4.6 ± 1.5, 4.2 ± 1.3 %BW day -1 and 5.1 ± 0.9 %BW day -1 , respectively, for octopuses fed squid, hake or crayfish. Food conversions for experiment II were of 41.0 ± 9.6%, 40.5 ± 9.9% and 21.3 ± 7.4 g, respectively, for octopuses fed squid, hake or crayfish, and were always higher for octopuses fed squid and hake compared to crayfish. The results indicate that crayfish is not an adequate replacement for the usual prey to fatten octopus, even considering its much lower market price.

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Section: Discussionmentioning

confidence: 97%

The use of alternative prey (crayfish, Procambarus clarki, and hake, Merlucius gayi) to culture Octopus vulgaris (Cuvier 1797)

et al. 2009

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“…In contrast, previous works in which Artemia alone (nauplii or juveniles) enriched with either microalgae or commercial enrichment products, or in co-feeding regimen with inert diets, were used to feed octopus paralarvae resulted in mass mortalities after few weeks of rearing (Iglesias et al 2000;Navarro and Villanueva 2000;Villanueva et al 2002). Advances in paralarvae rearing were recently reported combining enriched Artemia nauplii with frozen-flakes of pacific sandeel (Ammodytes personatus) as feeding strategy (Okumura et al 2005).…”

Section: Introductionmentioning

confidence: 84%

“…One of the main research topics about O. vulgaris paralarvae rearing has been the importance of the preys' lipid composition, especially their fatty acid (FA) profile, and its effects on the performance and body composition of paralarvae Villanueva 2000, 2003;Okumura et al 2005). Comparisons of the lipid classes and FA profiles of early life stages of wild octopus with reared paralarvae fed with enriched Artemia revealed some lipid imbalances, both qualitative and quantitative Villanueva 2000, 2003).…”

Section: Introductionmentioning

confidence: 96%

Growth and fatty acid composition of Octopus vulgaris paralarvae fed with enriched Artemia or co-fed with an inert diet

et al. 2010

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The rearing of Octopus vulgaris paralarvae during its planktonic life stage is a major challenge, as mortality is currently very high and unpredictable. In this study, we examined the survival and growth rates, as well as the fatty acid composition, of O. vulgaris paralarvae fed on three different dietary treatments: group ArDHA was offered juvenile Artemia enriched with a lipid emulsion (Easy DHA-Selco Ò ); group ArMA was fed with juvenile Artemia enriched with a mixture of microalgae (Rhodomonas lens and Isochrysis galbana); and group ArMA?ID received the same Artemia as group ArMA complemented with an inert diet. Dietary treatments were tested in triplicate with homogenous groups of paralarvae (25 individuals l -1 ) established in 50-l tanks, and the experiment was conducted for 15 days. The survival rate of 15-day post-hatch (-dph) paralarvae from groups ArMA (20 ± 8%) and ArMA?ID (17 ± 4%) tended to be higher than in group ArDHA (13 ± 5%), though these differences were not statistically different. The dry weight (DW) of 15-dph paralarvae increased by almost 60% in groups ArMA and ArMA?ID, and nearly 40% in group ArDHA, with respect to hatchlings. The fatty acid (FA) composition of paralarvae revealed a remarkable drop of docosahexaenoic acid (22:6n-3, DHA) from hatchlings to 15-dph paralarvae of all groups (P \ 0.05). However, P. Seixas Á M. Rey-Méndez (paralarvae from group ArDHA contained higher levels of DHA than those from ArMA and ArMA?ID (P \ 0.05). Despite Artemia enriched with DHA-Selco Ò contained three-times more DHA than Artemia enriched with microalgae, no beneficial effects of this dietary treatment were observed on the performance of paralarvae.

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“…Investigators have, therefore, looked at using sandeel whitebait instead, based on the knowledge that many wild common octopus paralarvae are captured with anchovy whitebait during seine boat fishing for whitebait, which suggests that the paralarvae fed on whitebait [31]. Subsequent studies have demonstrated better results with sandeel whitebait than with anchovy whitebait, and the addition of sandeel whitebait flakes containing large amounts of EPA and DHA directly to the culture tank has proven even more effective for rearing [32]. As another alternative, nutritionally enriched Artemia nauplii in place of adult Artemia were used.…”

Section: Common Octopusmentioning

confidence: 99%

Progress on larval and juvenile nutrition to improve the quality and health of seawater fish: a review

Takeuchi

2014

Fish Sci

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In seedling production of seawater fish, providing appropriate nutrition is a necessity for successful production of quality larvae and juveniles. Mass-produced live prey organisms, such as the rotifer Brachionus plicatilis species complex and brine shrimp Artemia spp., alone do not provide sufficient nutrition to the larvae and juveniles of seawater animals. This inadequacy has led to various problems related to fish quality and health, including increased incidence of morphological and behavioral abnormalities and mass mortalities. It is, therefore, important to identify the factors associated with these problems to improve seedling production techniques. This review collates the efforts made during the past two decades in larval nutrition-focusing on advances made in the use of certain nutrients, such as docosahexaenoic acid, vitamin A derivatives, and taurine that are important for the mass production of seawater fish larvae and juveniles-with an aim to improve the quality and health of fish.

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Improved survival and growth in Octopus vulgaris paralarvae by feeding large type Artemia and Pacific sandeel, Ammodytes personatus

Cited by 69 publications

References 13 publications

The use of alternative prey (crayfish, Procambarus clarki, and hake, Merlucius gayi) to culture Octopus vulgaris (Cuvier 1797)

The use of alternative prey (crayfish, Procambarus clarki, and hake, Merlucius gayi) to culture Octopus vulgaris (Cuvier 1797)

Growth and fatty acid composition of Octopus vulgaris paralarvae fed with enriched Artemia or co-fed with an inert diet

Progress on larval and juvenile nutrition to improve the quality and health of seawater fish: a review

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