Evaluation of Six Feeding Regimens for Survival and Growth of Shortnose Sturgeon Fry

Ware, Kent M.; Henne, James P.; Hickson, Brian H.; Charlesworth, Kevin

doi:10.1577/a05-003.1

Cited by 11 publications

(33 citation statements)

References 12 publications

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“…This supports the findings of Ware et al (2006) that shortnose sturgeon Acipenser brevirostrum exhibited higher survival and growth in different types of co-feeding regimes compared with a live food diet. The results obtained with different co-feeding regimes suggest a different pattern of transition to FD in these two species of sturgeon.…”

Section: Discussionsupporting

confidence: 90%

“…However, the performance of MD's for a variety of fish species was considerably enhanced when co-fed with live zooplankton (Kanazawa, Teshima, Inamori, Sumida & Iwashita 1982;Szlaminska & Praybyl 1986;Ehrlich, Cantin & Rust 1989;Fermin & Bolivar 1991;Marte & Duray 1991;Tandler & Kolkovski 1991;Walford, Lim & Lam 1991;Person Le Ruyet et al 1993;Lavens, Sorgeloos, Dhert & Devresse 1995). Ware, Henne, Hickson and Charlesworth (2006) investigated the effects of six feeding regimes on the survival and growth of shortnose sturgeon Acipenser brevirostrum fry over 30 days using formulated diets and co-feeding. Mohler et al (2000) indicated high survival in Atlantic sturgeon Acipenser oxyrinchus oxyrinchus using Artemia nauplii and a commercial feed.…”

Section: Introductionmentioning

confidence: 99%

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Fine tuning of feeding practices for hatchery produced Persian sturgeon,Acipenser persicusand Beluga sturgeon,Huso huso

et al. 2011

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In this work, we investigated the effects of various feeding treatments on the survival and growth of Huso huso and Acipenser persicus larvae during a 20day culture period. Three replicate groups (250 fish/replicate) of first-feeding larvae were fed according to four main feeding regimes: (1) live food (live nauplii of brine shrimp Artemia urmiana); (2) indirect transition (5-7 days live food followed by gradual transition to formulated diet); (3) direct transition (using different combinations of live and formulated diet from the start feeding onwards); and (4) formulated feed (FD) from the start of feeding. In H. huso larvae, combining live food and manufactured diets (co-feeding) from the first feeding stage onwards (direct transition) resulted in significantly higher weight gain than the other regimes. Survival was significantly higher in H. huso larvae fed solely live food or the direct transition regimes compared with indirect transition and FD. In A. persicus larvae, growth and survival were higher in the indirect transition feeding regime than in the other regimes. On the basis of the results of this study, we recommend co-feeding of H. huso immediately from the commencement of exogenous feeding, but co-feeding of A. persicus should start 7 days after prior feeding with live food.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Fine tuning of feeding practices for hatchery produced Persian sturgeon,Acipenser persicusand Beluga sturgeon,Huso huso

et al. 2011

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“…Nutrition plays a great role in fish growth and health (Bronzi et al 1999). Practices to provide only formulated feeds for sturgeons from the onset of exogenous feeding has led to drawbacks such as suboptimal survival and nearly complete mortality (Ware et al 2006;Mohler et al 2012;Ronyai and Feledi 2012). Thus, most of the sturgeons are cultured with live feed (e.g., Artemia or tubificids) as part of their first feeding regime.…”

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confidence: 99%

Production and Enrichment of Chironomid Larva with Different Levels of Vitamin C and Effects on Performance of Persian Sturgeon Larvae

et al. 2014

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Chironomid larvae have a high reproduction capacity. Because of their excellent nutritional quality, they have great potential in larval fish nutrition, specially bottom feeders like sturgeons. In this study, indoor production of Chironomus riparius was performed by controlling the physicochemical factors and developing an appropriate condition for this insect to complete the life cycle. Enrichment of lava was conducted by adding 0 (C0), 100 (C100), or 1000 (C1000) mg of ascorbic acid to 1 kg of chicken manure (as substrate). Ascorbic acid analysis of chironomid larva showed significant differences among the groups: 74.2 μg/g for C0, 325.0 μg/g for C100, and 779.9 for C1000. In the second experiment, enriched chironomids were fed to larval Persian Sturgeon Acipenser persicus and were compared with sturgeons fed live cladocerans, Daphnia, which are regulary used in hatcheries. Length and weight measurements after 14 d of the experimental period showed no significant differences in growth performance. Analysis of ascorbic acid in Persian Sturgeon viscera also showed no significant differences between the groups. In conclusion, chironomids could be cultured indoors and can be enriched to meet the nutritional requirements of fish. We found ascorbic acid did not have a signifucant effect on Persian Sturgeon larval feeding, but longer feeding periods and implication of unfavorable physicochemical conditions or causing stress tests might demonstrate the beneficial effects of this vitamin.

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“…The resulting fry were then transitioned from a diet of live nauplii of brine shrimp Artemia spp. to a prepared starter fish diet according to methods developed by Ware et al (2006).…”

Section: Methodsmentioning

confidence: 99%

Marking Otoliths and Fin Spines of Juvenile Shortnose Sturgeon with Oxytetracycline and the Effects of Water Temperature during Treatment

Crumpton

Henne

Ware

2012

N American J Fish Manag

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In order to evaluate a stocking program for shortnose sturgeon Acipenser brevirostrum that uses captive propagation to supplement wild populations, methods are needed to differentiate wild and hatchery‐reared individuals. Recently, methods have been established for marking juvenile shortnose sturgeon in oxytetracycline hydrochloride (OTC) baths, and the marks have been confirmed on both sagittal otoliths and first‐ray pectoral fin spines. However, considerable variability of mark quality has been observed on both structures, and sacrificing the fish for otolith removal is undesirable due to the shortnose sturgeon's endangered status. The objectives of this study were to determine the impact of water temperature during OTC marking on otolith and fin spine mark quality and to determine whether fin spines are as reliable as otoliths for detecting OTC marks. Six groups (N = 90) of hatchery‐produced shortnose sturgeon fingerlings were exposed to 750‐mg/L OTC baths for 12 h at two temperatures (heated and ambient). After marking was complete, fish were raised for 21 d, then euthanized. Otoliths and fin spines were independently analyzed by two readers, and a mark quality score (0, 1, or 2) was assigned based upon detectability. Fish marked at warmer temperatures (heated treatment) exhibited superior mark quality (mean ± standard error of the mean mark quality = 1.78 ± 0.07) on their otoliths than those marked in the cooler baths (ambient treatment; 1.27 ± 0.09). Similar results were observed for fin spines. Mark quality on fin spines and otoliths was not found to be significantly different. This research demonstrates the ability to chemically mark otoliths and fin spines of juvenile shortnose sturgeon with similar and predictable results.Received July 8, 2011; accepted January 23, 2012

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Evaluation of Six Feeding Regimens for Survival and Growth of Shortnose Sturgeon Fry

Cited by 11 publications

References 12 publications

Fine tuning of feeding practices for hatchery produced Persian sturgeon,Acipenser persicusand Beluga sturgeon,Huso huso

Fine tuning of feeding practices for hatchery produced Persian sturgeon,Acipenser persicusand Beluga sturgeon,Huso huso

Production and Enrichment of Chironomid Larva with Different Levels of Vitamin C and Effects on Performance of Persian Sturgeon Larvae

Marking Otoliths and Fin Spines of Juvenile Shortnose Sturgeon with Oxytetracycline and the Effects of Water Temperature during Treatment

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