Fish Pigmentation. A Key Issue for the Sustainable Development of Fish Farming

Cal, Laura; Suárez-Bregua, Paula; Morán, Paloma; Cerdá‐Reverter, José Miguel; Rotllant, Josep

doi:10.1007/978-3-319-73244-2_8

Cited by 12 publications

(13 citation statements)

References 147 publications

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“…Pseudo‐albinism (partial or total lack of dark pigmentation on the ocular side of the fish) and ambicolouration (blind side of the fish is dark) are the main permanent pigmentation abnormalities that arise during metamorphosis. Pseudo‐albinism represents a primary challenge for flatfish aquaculture as it conveys a negative perception of the product to consumers, which reduces its market value (Darias et al 2013; Cal et al 2018). Moreover, malpigmented flatfish are not suitable for restocking programs due to the higher predation rates and their reduced survival in the wild (Pinto et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

et al. 2020

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This study aimed to evaluate appropriate water sources to improve Solea aegyptiaca aquaculture from larval to the juvenile stage using two water sources (Eastern Harbour (EH) and MaxWell (MW)). Firstly, four microalgae's nutritional value (Nannochloropsis salina, N. oculata, Chlorella salina and Tetraselmis chuii) was assessed in both water sources. MW of high nitrate content enhanced the algal biomass and biochemical composition of all species compared to EH. MW-N. salina showed the highest growth and biochemical contents among the investigated species and yielded Artemia franciscana with a considerable amount of arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) compared to EH. Secondly, Artemia enriched MW-N salina was used to improve S. aegyptiaca quality in both water sources from 10-48 days posthatch at a density of 15 larvae L −1. The MW-S. aegyptiaca exhibited a significant increase in morphometric parameters, albino percentages and recorded the highest ARA, EPA and DHA content (35.9, 6.1 and 15.9 µg g −1 , respectively) compared to that reared on EH. The study reports evidence of albinism of MW-S. aegyptiaca due to high dietary and ARA content. Overall, the seawater source has a significant impact on the whole food chain quality from microalgae to S. aegyptiaca.

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Section: Introductionmentioning

confidence: 99%

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

et al. 2020

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“…Previous results suggest that crocodiles may have gone through a nocturnal bottleneck after their divergence from the lineage leading to birds while reducing their colour discrimination capacity [139], and thus may not represent an ideal group to study colour evolution in the archelosaurian clade. Here we show that turtles possess all three types of dermal pigment cells (xanthophores, iridophores, and melanocytes), shared with fish [140,141], amphibians [142,143], and lepidosaurs [144–146]. Analyses of the pigments involved in the production of yellow-red colours in turtles suggest that pteridine derivatives contribute, together with carotenoids, to these colours, which was not previously documented in non-avian archelosaurs, but has been reported in fish [112], amphibians [147], and lizards [104,148].…”

Section: Discussionmentioning

confidence: 99%

Body coloration and mechanisms of colour production in Archelosauria: The case of deirocheline turtles

Brejcha

Bataller

Bosáková

et al. 2019

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21Animal body coloration is a complex trait resulting from the interplay of multiple colour-producing mechanisms. 22Increasing knowledge of the functional role of animal coloration stresses the need to study the proximate causes of 23 colour production. Here we present a description of colour and colour producing mechanisms in two non-avian 24 archelosaurs, the freshwater turtles Trachemys scripta and Pseudemys concinna. We compare reflectance spectra; 25 cellular, ultra-, and nano-structure of colour-producing elements; and carotenoid/pteridine derivatives contents in 26 the two species. In addition to xanthophores and melanocytes, we found abundant iridophores which may play a 27 role in integumental colour production. We also found abundant dermal collagen fibres that may serve as 28 thermoprotection but possibly also play role in colour production. The colour of yellow-red skin patches results from 29 an interplay between carotenoids and pteridine derivatives. The two species differ in the distribution of pigment cell 30 types along the dorsoventral head axis, as well as in the diversity of pigments involved in colour production, which 31 may be related to visual signalling. Our results indicate that archelosaurs share some colour production mechanisms 32 with amphibians and lepidosaurs, but also employ novel mechanisms based on the nano-organization of the 33 extracellular protein matrix that they share with mammals. 34 35 *Jindřich Brejcha 2 36 65 Turtles are an early-diverging clade of Archelosauria, the evolutionary lineage of tetrapods leading to 66 crocodiles and birds [22]. Although many turtles have a uniform dull colour, conspicuous striped and spotted 67 patterns are common in all major lineages of turtles (for a comprehensive collection of photographs see [23-26]).68 These conspicuous colour patterns may be present in the hard-horny skin of shells, and/or in the soft skin of the 69 head, limbs or tail. The dark areas of the skin of turtles may have a threefold origin consisting either of dermal, 70 epidermal, or both epidermal and dermal melanocytes. Colourful bright regions are thought to be the result of the 71 presence of xanthophores in the dermis [27] and their interplay with dermal melanophores [28]. Iridophores have 72 never been shown to play role in coloration of turtles [27,29]. 73Pigment-bearing xanthophores were first described in the dermis of the Chinese softshell turtle (Pelodiscus 74 sinensis) [29]. Xanthophores have also been found sporadically in the dermis of the spiny softshell turtle Apalone 75 spinifera, the Murray river turtle (Emydura macquarii) and in the painted turtle (Chrysemys picta) [27]. Such scarcity 76 3 of carotenoid/pteridine derivatives-containing cells is in contrast with chemical analyses of the yellow and red 77 regions of the integument of the red-eared slider (Trachemys scripta elegans) and C. picta [30,31]. Two major 78 classes of carotenoids have been described in the integument of these turtles: short wavelength absorbing 79 apocarotenoids and longer wave...

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“…Here we show that turtles develop all the types of pigment cells (epidermal melanocytes, dermal xanthophores, iridophores and melanocytes) in the skin and organize them as continuous stacked layers as in other ectothermic vertebrates. Thus, early archelosaurs most likely shared with fish [153,154], amphibians [155,156], and lepidosaurs [138,157,158] a mechanism of skin colour production by superposition of pigment cells. It remains to be determined when the evolutionary shift between morphological and physiological mechanism of colour production by pigment cells occurred in the evolution of archelosaurs and whether these changes were parallel or convergent to the emergence of physiological mechanism of colour production in mammals.…”

Section: Significance For Vertebrate Skin Colour Evolutionmentioning

confidence: 99%

Body coloration and mechanisms of colour production in Archelosauria: the case of deirocheline turtles

et al. 2019

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Animal body coloration is a complex trait resulting from the interplay of multiple mechanisms. While many studies address the functions of animal coloration, the mechanisms of colour production still remain unknown in most taxa. Here we compare reflectance spectra, cellular, ultra- and nano-structure of colour-producing elements, and pigment types in two freshwater turtles with contrasting courtship behaviour, Trachemys scripta and Pseudemys concinna . The two species differ in the distribution of pigment cell-types and in pigment diversity. We found xanthophores, melanocytes, abundant iridophores and dermal collagen fibres in stripes of both species. The yellow chin and forelimb stripes of both P. concinna and T. scripta contain xanthophores and iridophores, but the post-orbital regions of the two species differ in cell-type distribution. The yellow post-orbital region of P. concinna contains both xanthophores and iridophores, while T. scripta has only xanthophores in the yellow-red postorbital/zygomatic regions. Moreover, in both species, the xanthophores colouring the yellow-red skin contain carotenoids, pterins and riboflavin, but T. scripta has a higher diversity of pigments than P. concinna . Trachemys s. elegans is sexually dichromatic. Differences in the distribution of pigment cell types across body regions in the two species may be related to visual signalling but do not match predictions based on courtship position. Our results demonstrate that archelosaurs share some colour production mechanisms with amphibians and lepidosaurs (i.e. vertical layering/stacking of different pigment cell types and interplay of carotenoids and pterins), but also employ novel mechanisms (i.e. nano-organization of dermal collagen) shared with mammals.

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Fish Pigmentation. A Key Issue for the Sustainable Development of Fish Farming

Cited by 12 publications

References 147 publications

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

Body coloration and mechanisms of colour production in Archelosauria: The case of deirocheline turtles

Body coloration and mechanisms of colour production in Archelosauria: the case of deirocheline turtles

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