The Loach Misgurnus fossilis

Kostomarova, A A

doi:10.1007/978-1-4615-3654-3_5

Cited by 17 publications

(19 citation statements)

References 14 publications

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“…However, in the endangered fish species such as weatherfish (the endangered and protected species in the whole Europe -see Introduction) this method is only one possible way to estimation of these data (dealing with fecundity) without need to kill the adult fish. Both, the value of average wet egg weight (0.88 mg on average) and diameter (1.42 mm on average) obtained in our study, were significantly lower compared to the figures showed by Kouril et al (1996), Adamkova-Stibranyiova et al (1999) (our data are c. 10-15% lower) in case of egg wet weight and by Kryzanovskij (1949), Kostomarova (1975) (our data are c. 13-23% lower) in case of egg diameter. Nevertheless, the value of average egg diameter (e.d.)…”

Section: Table III Total Length Of M Fossilis Larvae (Mean ± Sd) Acontrasting

confidence: 53%

“…The ontogenetic stage at hatching tended to decrease with rising temperature. Eggs incubated at temperatures between 21 and 24 °C hatched at Kostomarova's (1975) stage 36 (i.e. stage with first visible otholits in othic capsule, head slightly separated from the yolk sac, 10-13 caudal somites, still curved caudal part), (or the 44-somite stage of M. anguillicaudatus -Fujimoto et al (2006)) and those incubated at 9-18 °C, showed the traits of the stage 37 (i.e.…”

Section: Artificialmentioning

confidence: 99%

“…Developmental stages were determined using criteria published in Kryzanovskij (1949) with more precise concept set out in Kostomarova (1975) and Fujimoto et al (2006) (early ontogenetic stages in related species M. anguillicaudatus). Hatching of free swimming stages is considered the most important developmental treshold and the true onset of larval period (according to Kamler et al, 1998 Female fecundity features -the absolute stripping fecundity (total number of stripped eggs per female), the relative stripping fecundity (number of eggs per kg of female body mass (b. m.)) and the relative weight of stripped eggs (weight of stripped eggs/female weight prior to stripping) -were estimated using gravimetric method based on average wet weight of one egg (the last mentioned value was counted from the weight of mixed sample of 100 stripped unfertilized unpreserved eggs per one female).…”

Section: > Data Analysesmentioning

confidence: 99%

“…Therefore a comprehension of temperature effect on the early fish ontogeny is crucial in process of understanding of fish egg and early ontogenetic stages distribution, dynamics and mechanisms of adaptation (Klimogianni et al, 2004) to the fluctuating environmental conditions in the floodplain area (Ward, 1998;Pekarik et al, 2008). Up to now, there is only limited knowledge concerning the temperature limits of weatherfish during early ontogeny (Kostomarova, 1975;Alexeeva and Ozernyuk, 1987;Zdanovich et al, 2001). Therefore, the present study experimentally evaluates the thermal sensitivity of embryonic and larval development up to the finish of hatching in artificially propagated weatherfish in a wide temperature range.…”

Section: Introductionmentioning

confidence: 99%

“…In nature, weatherfish is spawning from April to June (Grieb, 1937;Kryzanovskij, 1949;Kotlyarevskaja, 1967) in dependence on water temperature (Kryzanovskij (1949) and Kotlyarevskaja (1967) states temperature 13-14 °C). However, this species possesses the unique anatomical, morphological (outer filamentous gills in larvae - Grieb, 1937;Kryzanovskij, 1949;Kostomarova, 1975) and physiological adaptations (intestinal and skin breath - Kim (1999) -M. anguillicaudatus (Cantor, 1842)), its density decreased rapidly through the whole Europe in the second part of the 20th century (Meyer and Hinrichs, 2000) due to the degraded water quality (impact of industry and agriculture), direct destruction and drying natural habitats (impact of water engineering), (leading to deficiencies in ecological integrity; Karr (1991)) just like in other freshwater species (Kamler et al, 1998;Schiemer et al, 2003). Nowadays its status in Europe is considered least concern (Kottelat and Freyhof, 2007), this species is listed under Annex II of the Council Directive 92/43/EEC (involved into Natura 2000 network) and in many Red lists of endangered fishes in the Europe.…”

Section: Introductionmentioning

confidence: 99%

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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: Table III Total Length Of M Fossilis Larvae (Mean ± Sd) Acontrasting

confidence: 53%

Section: Artificialmentioning

confidence: 99%

Section: > Data Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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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Ontogeny and phylogeny of the yolk extension in embryonic Cypriniform fishes

Virta

Cooper

2009

J Exp Zool Pt B

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The validity of defining a common phylotypic stage for all vertebrates has been questioned because of variations in embryonic morphological traits between vertebrate classes, as well as variations in embryonic phenotypes between species of the same vertebrate class. To evaluate the evolutionary lability of phylotypic features in vertebrate embryos, we have examined the phylogenetic and ontogenetic origins of the yolk extension--a distinctive morphological trait that is found in the ventrolateral trunk region of cypriniform fish embryos. This posterior axial protrusion, extending from the embryonic yolk ball, is formed in cypriniform fishes by a ventrolateral constriction of the yolk mass during the phylotypic period of development. Using a functional definition of the phylotypic period, a comparative analysis of published literature on developing actinoptyerygian (ray-finned) fishes reveals that the yolk extension is a shared embryonic trait of the clade Cypriniformes. The yolk extension also appears in several species in two other basal teleostean clades, Characiformes and Anguilliformes. The conservation of the yolk extension in the clade Cypriniformes, as well as its presence in two other basal teleostean clades, supports the hypothesis that the yolk extension is a product of evolutionary transformation. Besides exhibiting evolutionary transformation, the process of yolk extension formation satisfies five other defined criteria for developmental modularity. Thus, it appears that yolk extension ontogenesis is a novel evolutionary, developmental module that has been incorporated into the phylotypic period of certain teleostean lineages.

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Spatial-temporal characteristics of intercellular junctions in early zebrafish and loach embryos before and during gastrulation

Bozhkova

Voronov

1997

Development Genes and Evolution

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Injections of lucifer yellow and fluorescein dyes into loach (Misgurnus fossilis) and zebrafish (Danio rerio) embryos were used to analyse the intercellular communication via gap junctions (GJs) and their role in morphogenetic processes during the period from early blastula to late gastrula. It is shown that the efficiency of dye transfer between the superficial blastomeres increases by the late blastula stage. Blastomeres of the basal layer, on the other hand, become gradually uncoupled from the yolk cell (YC). This process is spatially uneven and finishes by the late gastrula stage. Prior to it, at the early epiboly stage, a local increase in dye transfer is observed in the circular zone of the blastoderm margin. During gastrulation, GJ communication between blastomeres and the YC in this zone and also in the newly-formed germ ring region (the prospective mesoderm domain) persists for a longer period of time (up to the stage of 60-70% epiboly) than in the remaining part of the basal layer (the prospective ectoderm domain). Taking into account the data on changes in the adhesive properties of blastomeres during normal development and observations on embryos with retarded epiboly, we hypothesize that changes in GJ communication between superficial blastomeres, on one hand, and between basal blastomeres and the YC, on the other, are the consequences of the same, more general morphogenetic process of compaction occurring within the blastoderm, which supports epiboly and is probably responsible for the distinction between mesodermal and ectodermal fates of cells differently located within the forming epithelioid sheet.

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The Loach Misgurnus fossilis

Cited by 17 publications

References 14 publications

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)

Ontogeny and phylogeny of the yolk extension in embryonic Cypriniform fishes

Spatial-temporal characteristics of intercellular junctions in early zebrafish and loach embryos before and during gastrulation

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