Influence of the timing of weaning on growth and survival of juvenile winter flounder (<i>Pseudopleuronectes</i><i>americanus</i>)

Bélanger, Michel; Turcotte, François; Tremblay, Réjean; Lambert, Yvan; Litvak, Matthew K.; Audet, Céline

doi:10.1139/cjz-2018-0004

Cited by 5 publications

(2 citation statements)

References 56 publications

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“…The lipid composition of larvae and/or juveniles has been presented in detail for Florida pompano (Cavalin and Weirich, 2009;Hauville et al, 2014Hauville et al, , 2016Rombenso et al, 2016Rombenso et al, , 2017 Jackson et al, 2020) and for winter flounder (Mercier et al, 2004;Seychelles et al, 2011Seychelles et al, , 2013Vagner et al, 2013;Bélanger et al, 2018;Martinez-Silva et al, 2018). While these studies examined different developmental stages, we have merged the results for the purpose of comparison.…”

Section: Introductionmentioning

confidence: 99%

Essential Fatty Acid Requirements in Tropical and Cold-Water Marine Fish Larvae and Juveniles

et al. 2021

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To improve survival at early developmental stages (larvae and juveniles) of captive fish species, essential nutrients [i.e., essential fatty acids (EFA)] need to be identified. The physiological needs are likely to be different among species, particularly among those using different thermal habitats, because lipids are largely used to maintain cell membrane integrity (homeoviscous adaptation) in fishes. This review paper will focus on currently published research and the main results from our laboratories regarding optimum qualitative EFA requirements during larval and early juvenile stages in a warm-water marine species, the Florida pompano (Trachinotus carolinus), and a cold-water marine species, the winter flounder (Pseudopleuronectes americanus). To identify the qualitative optimal EFA requirements, we calculated the ratio of certain fatty acids (FA) in larval or early juvenile tissues to total FA present in the diet. This ratio indicates whether a specific FA from prey is selectively incorporated by larvae and juveniles. Overall, we found that young larvae from both cold- and warm-water species have greater demands for n-3 and n-6 highly unsaturated fatty acids (HUFA) than do larvae at weaning stages. However, the qualitative EFA requirements of the cold-water species at all early developmental stages were higher than those of the warm-water species. Enriched rotifer diets provided satisfactory amounts of omega 3 and omega 6 in Florida pompano, with small selective retention for docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and arachidonic acid (ARA), suggesting a potential minor diet deficiency in these EFA. There were higher deficiencies in the cold-water species fed enriched rotifers, as demonstrated by the higher selective retentions of all EFA (DHA, EPA, and ARA), with the exception of larvae fed with copepods. The physiological needs in EFA for juvenile development seemed to be better met for both species when they were fed micro pellets. From the beginning of settlement and in young juveniles, qualitative values of 12% DHA, 10% EPA, 5% ARA, and 40% PUFA of total FA seem to be required for winter flounder juvenile development. In Florida pompano, these requirements could be met until larger juvenile stages, with 15% DHA, 3% EPA, 2% ARA, 2% DPA, and total PUFA below 30% of total FA. This review was done to aid future research aiming to develop nutritionally balanced microdiets or live-prey enrichment diets to satisfy the physiological requirements of captive tropical and cold-water marine fish species.

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Section: Introductionmentioning

confidence: 99%

Essential Fatty Acid Requirements in Tropical and Cold-Water Marine Fish Larvae and Juveniles

et al. 2021

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“…The development of culture techniques suitable for this species has been ongoing for many years (Fairchild, 2010; Litvak, 1999). Larval rearing protocols have already been successfully developed (Ben Khemis, Audet, Fournier, & De La Noüe, 2003; Ben Khemis, De La Noue, & Audet, 2000; Litvak, 1999; Litvak, Zadmajid, & Butts, 2020; Martinez‐Silva, Audet, Winkler, & Tremblay, 2018) and metamorphosed fish can be weaned onto formulated diets (Bélanger et al, 2018; Butts, Ben Khemis, & Litvak, 2015; Fairchild, Rennels, Howell, & Wells, 2007; Lee & Litvak, 1996a, 1996b). However, postmetamorphic mortality rate of winter flounder reared in the hatchery is still high and pigmentation of juveniles can be poorly developed.…”

Section: Introductionmentioning

confidence: 99%

Influence of temperature on growth and survival of juvenile winter flounder, Pseudopleuronectes americanus (Walbaum) reared under continuous light

Casey

Zadmajid

Butts

et al. 2020

J World Aquaculture Soc

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Winter flounder, Pseudopleuronectes americanus, has emerged as a promising candidate flatfish for cold‐water aquaculture and restocking. Here, juveniles were reared for 8 weeks at three temperatures: 10, 15, and 20°C under 24‐hr light. All fish were imaged at stocking and at 2‐week intervals, where growth was measured as changes in standard length (SL) and body area (BA). By week 2, fish reared at 15 and 20°C were larger than those grown at 10°C. At weeks 4 to 6, fish at 15°C were larger than fish at 20°C. Linear regressions were used to model growth dynamics over time at each temperature. Highly significant linear growth trajectories were detected over time for SL and BA. SL and BA regressions also showed a significant difference among the slopes across temperatures, where comparing slopes showed the best temperature to rear the flounder was 15°C. Weights of fish held at 15°C and 20°C were greater than at 10°C at the termination of the experiment. Within each temperature, the growth rate of malpigmented fish was not different from that of the normally pigmented fish. Overall, growth of winter flounder was comparable to that of other commercially produced flatfish species, providing strong evidence for this flatfish species as a potential species for aquaculture.

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Anthropogenic boat noise reduces feeding success in winter flounder larvae (Pseudopleuronectes americanus)

et al. 2020

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The aim of this study was to explore an emerging discipline addressing the impact of 20 anthropogenic noise on larval stages of marine organisms. We assessed the influence of 21 boat noise on the feeding behaviour of the pelagic larvae of winter flounder 22 (Pseudopleuronectes americanus, Walbaum 1792). The hypothesis was that boat noise 23 influences the feeding behaviour of P. americanus flounder larvae independently of prey 24 density. Aquaria containing P. americanus larvae were placed in water baths in which boat 25 aquaria with no sound 26 emissions. Larvae were filmed using cameras placed above the aquaria and their behaviour 27 was recorded. Larvae exposed to anthropogenic noise displayed significantly fewer 28 hunting events than controls, and their stomach volumes were significantly smaller. This 29 noise effect was the same at all prey densities used, suggesting that larval feeding behaviour 30 is negatively impaired by anthropogenic noise.

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Influence of the timing of weaning on growth and survival of juvenile winter flounder (Pseudopleuronectesamericanus)

Cited by 5 publications

References 56 publications

Essential Fatty Acid Requirements in Tropical and Cold-Water Marine Fish Larvae and Juveniles

Essential Fatty Acid Requirements in Tropical and Cold-Water Marine Fish Larvae and Juveniles

Influence of temperature on growth and survival of juvenile winter flounder, Pseudopleuronectes americanus (Walbaum) reared under continuous light

Anthropogenic boat noise reduces feeding success in winter flounder larvae (Pseudopleuronectes americanus)

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