Rearing Larvae of Different Strains of Coregonus lavaretus under Cold Water Conditions: Comparison of a Special Cold-Water Line with a Standard Agglomerated Microdiet

Leithner, Stephanie; Wanzenböck, Josef

doi:10.5539/jas.v7n5p28

Cited by 8 publications

(8 citation statements)

References 18 publications

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“…In several studies mean larval survival was as low as 5% (Lahnsteiner & Kletzl, ), 11.1% (Esmaeilzadeh‐Leithner & Wanzenböck, ) or 20% (Hundt et al, ). The survival rate for the worst performing groups (treatment A) in this trial (40.2%–49.3%) was slightly higher than that in the range of experiments with Coregonus lavaretus (Champigneulle & Rojas‐Beltran, ; Leithner & Wanzenböck, ). The groups from treatments B and C revealed survival rates of 57.3%–74.5% and were comparable to a shorter trial by Hundt et al () until 16 dph with 60% and the better performing groups in the experiments of Esmaeilzadeh‐Leithner and Wanzenböck () as well as in the 28‐day study of Sebesta et al ().…”

Section: Discussioncontrasting

confidence: 54%

“…There are a few older studies regarding the first feeding of coregonids stating that a first feeding with a pure dry feed diet is possible (Flüchter, ; Mamcarz et al, ) but similar to the current study, other researchers have also found that using live feed, to at least some extend, results in higher larvae survival and growth (Champigneulle & Rojas‐Beltran, ; Drouin, Kidd, & Hynes, ). More recent studies indicate the improvement of the available dry feeds and understanding of first feeding with good results on a dry feed diet only (Esmaeilzadeh‐Leithner & Wanzenböck, ; Lahnsteiner & Kletzl, ; Leithner & Wanzenböck, ). The usage of live feed for Coregonus clupeaformis larvae was promotional to a dry feed diet (Drouin et al, ).…”

Section: Discussionmentioning

confidence: 99%

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Combined effect of temperature and live feed period on growth and survival of Coregonus maraena (Bloch, 1779) larvae

Bochert

Luft

2019

Aquac Res

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Despite intensive stocking programmes, wild Maraena whitefish Coregonus maraena (Bloch, 1779)-stocks are in danger of extinction in the Baltic sea region. Current aquaculture rearing methods in recirculating aquaculture systems (RAS) are lacking efficient protocols for transitioning larvae from endogenous to exogenous feeding. In this 34-day-experiment the offspring of wild fish was used. Maraena whitefish larvae were weaned at three different temperatures (15.9°C, 17.9°C, 19.7°C) and three feeding regimes, resulting in nine treatments. The first group received pure live feed (freshly hatched Artemia sp. nauplii) for 10 days and a 1:1-mixture of live and dry feed for 3 days. The second group received the live and dry feed mixture for 13 days and the third group directly received a commercial dry feed. All nine treatments were stocked in triplicate with 500 larvae per tank (19 ind. L −1 ). Feeding started 4 days post hatch. Survival was highest in the pure dry feed groups and lowest in the pure live feed groups. In contrast to growth, which was highest in the live feed groups and lowest in the dry feed group. Higher temperature increased growth in the live feed groups but had no effect on survival in all groups. These results will enhance the weaning of C. maraena in recirculation aquaculture. K E Y W O R D SCoregonus maraena, growth, intensive aquaculture, larval rearing, live-feed period, survival, temperature

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Section: Discussioncontrasting

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Combined effect of temperature and live feed period on growth and survival of Coregonus maraena (Bloch, 1779) larvae

Bochert

Luft

2019

Aquac Res

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“…Intraspecific differentiation has been already assessed for several other traits of interest such as growth (e.g. Leithner and Wanzenböck 2015), feed conversion efficiency (e.g. Imsland et al 2000;Jonassen et al 2000), or disease resistance (e.g.…”

Section: Differences In Group Structure and Aggressive Interactions Bmentioning

confidence: 99%

When behavioural geographic differentiation matters: inter-populational comparison of aggressiveness and group structure in the European perch

et al. 2019

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Domestication is still a long and difficult process and it is particularly impacted by species behavioural traits. Indeed, tolerance to high densities in intensive cultures and sociability are major features which facilitate domestication and influence the effectiveness of aquaculture production. Moreover, behavioural domestication predispositions could change at the intraspecific level. Here, we investigate three essential behavioural traits: aggressive interactions, group structure, and activity between three allopatric populations of Perca fluviatilis, a fish species at its nascent stage of production. We highlight inter-populational differences in group structure and aggressive interactions but not in activity. A more cohesive and homogeneous group structure was demonstrated for Finnish populations compared to Lake Geneva at 45-46 days post-hatching. In addition, Lake Geneva presented a higher aggressiveness. These inter-populational differences could be used in European perch aquaculture in order to improve production as well as welfare of individuals.

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“…Such feeds have been compared (Curnow, King, Bosmans, & Kolkovski, 2006;Curnow, King, Partridge, & Kolkovski, 2006) and are increasingly used for commercial aquaculture species (e.g., Katan et al, 2016;Watanabe et al, 2016) but also for experimental zebrafish (Farias & Certal, 2015). However, the suitability of such standard agglomerated commercial microdiets has rarely been tested, respectively, been published for European whitefish (Leithner & Wanzenböck, 2015). Most practitioners in aquaculture do not have the ability to manufacture their own microdiets, as this is very costly and time-consuming, and on the other hand, they do not have the professional skills and equipment to do such work.…”

mentioning

confidence: 99%

Suitability of two agglomerated commercial microdiets for rearing larvae of different strains of Coregonus lavaretus under cold-water conditions

Esmaeilzadeh‐Leithner

Wanzenböck

2017

Aquacult Nutr

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The suitability of two agglomerated commercial microdiets ("Gemma micro ® " and "O.range ® " from now on called diet A and diet B) as a starter feed was tested on larvae of European whitefish (Coregonus lavaretus). Two strains (Baltic and Alpine) were tested in a 60-day experiment under ambient cold-water conditions (average 7.6 ± 1.9°C). The experiment was carried out in 400-L PVC tanks with a stocking density of 5,000 larvae per tank. Samples were removed weekly to determine growth, survival and feed acceptance, in addition to water quality. Striking differences between the feeds and different strains were observed. For one diet, growth and survival were distinctively higher in strain 1 compared to strain 2, where it was invariably low with both diets. For the second diet, growth and survival in strain 1 were also low and similar to strain 2. Feed acceptance in strain 1 was found higher compared to strain 2.Final weights were significantly different with strain 1 being heavier; however, in terms of relative growth rate, no differences between strains were found. Strong differences in the performance in terms of growth, survival and feed acceptance of different strains of European whitefish became apparent. Furthermore, the rearing of larvae exclusively on standard agglomerated commercial microdiets under cold-water conditions is possible, but not every microdiet is suitable. K E Y W O R D SEuropean whitefish, feed acceptance, growth, Survival

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Rearing Larvae of Different Strains of Coregonus lavaretus under Cold Water Conditions: Comparison of a Special Cold-Water Line with a Standard Agglomerated Microdiet

Cited by 8 publications

References 18 publications

Combined effect of temperature and live feed period on growth and survival of Coregonus maraena (Bloch, 1779) larvae

Combined effect of temperature and live feed period on growth and survival of Coregonus maraena (Bloch, 1779) larvae

When behavioural geographic differentiation matters: inter-populational comparison of aggressiveness and group structure in the European perch

Suitability of two agglomerated commercial microdiets for rearing larvae of different strains of Coregonus lavaretus under cold-water conditions

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