Early development and allometric growth patterns of rheophilic cyprinid common dace Leuciscus leuciscus (Cyprinidae: Leuciscinae)

Kupren, Krzysztof; Izabela, Rams; Żarski, Daniel; Kucharczyk, Dariusz

doi:10.1007/s10228-016-0508-9

Cited by 15 publications

(10 citation statements)

References 41 publications

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“…Intense morphogenesis occurred during early life stages of Eurasian perch, resulting in different growth patterns among the body measurements, which supports the hypothesis that in order to increase the probability of survival, a shift in ontogenetic priorities occurs during early development when facing the need to interact with the environment (Gisbert et al, ; Khemis et al, ; Kupren, Rams, Żarski, & Kucharczyk, ; Peña & Dumas, ). Allometric analyses of Eurasian perch characteristics showed that the most important changes in shape occurred up to 24 mm and involved the growth of the head region with a simultaneous increase in body depth.…”

Section: Discussionsupporting

confidence: 61%

Early development and allometric growth in hatchery‐reared Eurasian perch, Perca fluviatilis L.

et al. 2019

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The morphological development and allometric growth patterns of Eurasian perch, Perca fluviatilis L., a highly valued commercial species, were studied under intensive rearing conditions from hatching up to 50 DPH (Days Post Hatch). Based on the external morphology, four different phases during early development of Eurasian perch were identified: pre‐flexion larva 0–20 DPH (5.70–10.16 mm TL); flexion larva 22–30 DPH (11.09–15.14 mm TL) and post‐flexion larva/juvenile 32–50 DPH (18.00–24.75 mm TL). The results indicate that growth period when final replacement of all temporary (larval) structures and most important changes in the shape of P. fluviatilis occurred (between 13.95 and 24.06 mm TL, during flexion and post‐flexion phase) can be considered as a transitional period between the larva and juvenile. All body segments, except trunk length and tail length showed fast growth (positive allometry) throughout the entire studied period or up to the respective inflexion point with a common tendency to isometry. In addition, the specific behaviours (e.g. pelagic way of life) of Eurasian perch larvae resulted in some characteristic allometric growth patterns in the posterior region, different from the majority of other teleosts. The results are discussed with respect to the ontogeny of the functional morphology under both ecological and aquaculture considerations.

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Section: Discussionsupporting

confidence: 61%

Early development and allometric growth in hatchery‐reared Eurasian perch, Perca fluviatilis L.

et al. 2019

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“…In general, fishes undergo both morphological and ecological changes during early life-stages due to changes in functional or structural requirements (44,49). We find no differences in offspring craniofacial shape between H and FF, suggesting that the shape of trophic structures is well established at H. Although such findings might point towards limitations in diet choice due to restrictive morphology, the malleability of the phenotype during ontogeny will likely facilitate dietary expansion, especially in a phenotypically plastic species (18,38).…”

Section: Developmental Stage Differencesmentioning

confidence: 63%

Differences among families in craniofacial shape at early life-stages of Arctic charr (Salvelinus alpinus)

Beck

Räsänen

LeBlanc

et al. 2020

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Background Organismal fitness can be determined at early life-stages, but phenotypic variation at these early life-stages has rarely been considered in studies on evolutionary diversification. The trophic apparatus has been shown to contribute to sympatric resource-mediated divergence in several taxa. However, processes underlying this diversification are poorly understood. Using a phenotypically variable morph of Icelandic Arctic charr (Salvelinus alpinus), we reared offspring from multiple families under standardized laboratory conditions and tested to what extent family (i.e. direct genetic and maternal effects) contributes to offspring morphology at hatching (H) and first feeding (FF). To understand the underlying mechanisms behind early life-stage variation in morphology, we examined how craniofacial shape varied according to family, egg size, offspring size and individual candidate genes related to craniofacial development. Finally, we assessed whether craniofacial shape and expression of genes related to craniofacial development covaried. Results We found effects of family for offspring craniofacial shape at both H and FF, whilst relative expression levels of Sgk1 (a gene involved in craniofacial shape divergence) correlated with craniofacial shape at FF. However, there were no evidence to suggest that mean egg size or individual offspring size influenced offspring morphology. Conclusions This study provides evidence for within population family effects for phenotypic variation in trophic morphology, indicating the potential for genetic and/or maternal effects to facilitate resource polymorphism.

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“…In general, shes undergo both morphological and ecological changes during early life-stages due to changes in functional or structural requirements (50,55). Using ventral views of Arctic charr heads only, we found no differences in craniofacial shape due to developmental stage alone (Table 1), but offspring at H were smaller and had a more-narrow hyoid arch than those larger FF offspring (Fig.…”

Section: Developmental Stage Differencesmentioning

confidence: 83%

Differences among families in craniofacial shape at early life-stages of Arctic charr (Salvelinus alpinus)

Beck

Räsänen

LeBlanc

et al. 2020

Preprint

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Background Organismal fitness can be determined at early life-stages, but phenotypic variation at early life-stages is rarely considered in studies on evolutionary diversification. The trophic apparatus has been shown to contribute to sympatric resource-mediated divergence in several taxa. However, processes underlying diversification in trophic traits are poorly understood. Using phenotypically variable Icelandic Arctic charr (Salvelinus alpinus), we reared offspring from multiple families under standardized laboratory conditions and tested to what extent family (i.e. direct genetic and maternal effects) contributes to offspring morphology at hatching (H) and first feeding (FF). To understand the underlying mechanisms behind early life-stage variation in morphology, we examined how craniofacial shape varied according to family, offspring size, egg size and candidate gene expression. Results Craniofacial shape (i.e. the Meckel’s cartilage and hyoid arch) was more variable between families than within families both across and within developmental stages. Differences in craniofacial morphology between developmental stages correlated with offspring size, whilst within developmental stages only shape at FF correlated with offspring size, as well as female mean egg size. Larger offspring and offspring from females with larger eggs consistently had a wider hyoid arch and contracted Meckel’s cartilage in comparison to smaller offspring.Conclusions This study provides evidence for family-level variation in early life-stage trophic morphology, indicating the potential for parental effects to facilitate resource polymorphism.

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Early development and allometric growth patterns of rheophilic cyprinid common dace Leuciscus leuciscus (Cyprinidae: Leuciscinae)

Cited by 15 publications

References 41 publications

Early development and allometric growth in hatchery‐reared Eurasian perch, Perca fluviatilis L.

Early development and allometric growth in hatchery‐reared Eurasian perch, Perca fluviatilis L.

Differences among families in craniofacial shape at early life-stages of Arctic charr (Salvelinus alpinus)

Differences among families in craniofacial shape at early life-stages of Arctic charr (Salvelinus alpinus)

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