The artificial propagation and culture of young weatherfish (Misgurnus fossilis L.)

Kouřil, J.; Hamáčková, J.; Adámek, Zdeněk; Sukop, Ivo; Stibranyiová, I.; Vachta, R.

doi:10.1007/978-3-0348-9014-4_30

Cited by 21 publications

(22 citation statements)

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“…The absolute stripping fecundity (approximately 6.90 thousand eggs on average) of weatherfish female evaluated in our study reached the same figure as Bohl (1993), but 20% or 50% or even 60% lower value compared to Geldhauser (1992), Kouril et al (1996) or Adamkova-Stibranyiova et al (1999) respectively. The conformable situation as in previous parameter was recorded in the relative stripping fecundity (121.60 thousand eggs per kg b. m. on average) and the relative weight of stripped eggs (10.70% on average) too, when our data averaged the half value compared to Geldhauser (1992), Kouril et al (1996) and Adamkova-Stibranyiova et al (1999).…”

Section: Discussionsupporting

confidence: 72%

“…The conformable situation as in previous parameter was recorded in the relative stripping fecundity (121.60 thousand eggs per kg b. m. on average) and the relative weight of stripped eggs (10.70% on average) too, when our data averaged the half value compared to Geldhauser (1992), Kouril et al (1996) and Adamkova-Stibranyiova et al (1999). The reason for this discrepancy might be an origin of the fish.…”

Section: Discussionsupporting

confidence: 52%

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Effect of temperature on early life history in weatherfish,Misgurnus fossilis(L. 1758)

Drozd

Kouřil

Bláha

et al. 2009

Knowl. Managt. Aquatic Ecosyst.

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Effect of incubation temperature (range: 9-36 °C; interval: 3 °C) on artificially propagated weatherfish (Misgurnus fossilis) early ontogeny (during interval from egg fertilization to the finish of hatching) was investigated. Both, the amplitude of the incubation period (evaluated in four crucial moments), the total hatching period duration was inversely proportional to the incubation temperature and ranged from 17.5 days at 9 °C to 1.8 days at 24 °C (expressed at H 50 ) or from 137 hours at 9 °C to 9 hours at 24 °C, respectively. There were no influence of rising temperature on the total length of newly hatched larvae (T L = 4.23-4.67 mm), in contrast to negative correlation with developmental stage (9-18 °C: stage 37; 21-24 °C: stage 36), i.e. the length might determine the age at hatching, rather than the age at hatching determines the hatching length. The thermal tolerance range in term of survival lies between 9 and 24 °C (the thermal optimum 15-24 °C, i.e. weatherfish is a warm-mesothermic species). Temperatures above 24 °C (in our study 27-36 °C) are considered the lethal temperatures already during embryonic period. It is highly recommended to distinguish an impact of suboptimal temperatures 9-12 °C on development during explored interval only, in contrast to possible other effect of these lower temperatures in context of the whole early ontogeny. RÉSUMÉEffets de la température sur les premiers stades de vie de la loche d'étang, Misgurnus fossilis (L. 1758) L'effet de la température d'incubation (gamme : 9-36 °C, intervalles : 3 °C) sur les premiers stades ontogéniques de loches d'étang (Misgurnus fossilis) (de la fécon-dation à la fin de l'éclosion) a été étudié. La durée de la période d'incubation (évaluée à quatre moments clés) et la durée de la période d'éclosion des oeufs d'un lot sont inversement proportionnelles à la température d'incubation et s'étalent de 17,5 jours à 9 °C à 1,8 jour à 24 °C (pour l'indice H 50 ) et de 137 heures à 9 °C à 9 heures à 24 °C, respectivement. Il n'y a pas d'influence d'une élévation de température sur la longueur totale des larves à l'éclosion (T L = 4,23-4,67 mm), alors qu'il y a une corrélation négative avec le stade de développement (9-18 °C : stade 37 ; 21-24 °C : stade 36), i.e. la longueur semble déterminer l'âge à l'éclo-sion, plutôt que l'âge à l'éclosion déterminerait la longueur à l'éclosion. La gamme

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Section: Discussionsupporting

confidence: 72%

Section: Discussionsupporting

confidence: 52%

Effect of temperature on early life history in weatherfish,Misgurnus fossilis(L. 1758)

Drozd

Kouřil

Bláha

et al. 2009

Knowl. Managt. Aquatic Ecosyst.

Self Cite

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“…Ze geven hierbij wel geen temperatuur aan. Ook Kellner (1915) Kouril (1996) had het over 4500 tot 13000 eitjes voor een wijfje. Weiss (1985) houdt het op 10000.…”

Section: Zoötechniekunclassified

“…Er werd gestart met Artemia-nauplii, en vervolgens werd Chironomus en Tubifex gevoederd. Kouril (1996) voederde gedurende 28 dagen vijverplankton aan de larven, waarbij ze een voorkeur vertoonden voor Chydorus sphaericus (een bentische watervlo). Ook Bosmina, copepoden en Daphnia werden geconsumeerd.…”

Section: Exogene Voedingunclassified

“…De overleving na deze periode werd op 60 % geschat. Bij Kouril (1996) groeiden de larven op met natuurlijk plankton en bereikten ze na 28 dagen een gemiddelde lengte van 19,5 mm en gewicht van 55,4 mg. Kellner (1915) geeft een lengte aan van 5 -6 cm na 1 jaar. Knaack (1961) komt na 1 zomer aan een lengte van 70 tot 95 mm en na 2 zomers aan 125 tot 150 mm.…”

Section: Groei Van De Larvenunclassified

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Haalbaarheidsstudie (her)introductie grote modderkruiper – Luik 3 Kweek: Haalbaarheid van de opkweek en herintroductie van de grote modderkruiper in Vlaanderen

Auwerx¹,

Mergeay²,

Belpaire³

2018

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Methodology for drawing up a Red List of threatened freshwater fish in France

Keith

Marion

2002

Aquatic Conservation

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ABSTRACT1. In 1995, the IUCN implemented new definitions to be used when drawing up red lists. However, in addition to being imprecise for fish species, these remain difficult to apply.2. This paper describes a more exhaustive method under the IUCN (1995) definitions based on six quantitative and qualitative criteria where scientific data are given the greatest possible weight, as compared with 'expert opinion'. This dual system makes it possible both to allocate an IUCN category to each species, and to rank each species within a particular category according to given scores, so that priorities can be determined.3. The new Red List for French Freshwater Fish drawn up with this method contains 27 species, or 54% of the French native fauna. Three species are extinct (EX), four are critically endangered (CR), two are endangered (EN), 14 are vulnerable (VU), and four are at lower risk (LR).4. Based on sounder scientific grounds, this list modifies and replaces the one drawn up in 1992. In effect, it makes it easier to argue for the presence of one species in one category rather than in another.

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The artificial propagation and culture of young weatherfish (Misgurnus fossilis L.)

Cited by 21 publications

References 1 publication

Effect of temperature on early life history in weatherfish,Misgurnus fossilis(L. 1758)

Effect of temperature on early life history in weatherfish,Misgurnus fossilis(L. 1758)

Haalbaarheidsstudie (her)introductie grote modderkruiper – Luik 3 Kweek: Haalbaarheid van de opkweek en herintroductie van de grote modderkruiper in Vlaanderen

Methodology for drawing up a Red List of threatened freshwater fish in France

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