Importance of bottom type and background color for growth and blind-side hypermelanosis of the olive flounder, Paralichthys olivaceus

Dh, Kang; Kim, Hyo-Chan

doi:10.1016/j.aquaeng.2013.05.001

Cited by 18 publications

(14 citation statements)

References 38 publications

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“…With the exception of a relatively high degree of hyperpigmentation, fish attributes were better in units with silicone ridges on the bottom (higher growth and lower prevalence of external skin lesions on the blind side) than in sand. Kang and Kim (2013) observed similar results keeping olive flounders (Paralichthys olivaceus) in three types of substrates (flat, embossed and gravel bottom). A tendency to a higher daily growth rate in embossed tank was found as well as a weak inhibition of malpigmentation.…”

Section: Introductionsupporting

confidence: 66%

“…In terms of roughness, previous studies of flatfish found that it improves growth (McVicar, 1987;Ottesen and Strand, 1996;Ottesen et al, 2007;Kang and Kim, 2013) because the abrasive effect could have stimulated mucus production and assisted in removal of dead cells and other debris from the skin. This may be relevant in the avoidance of secondary skin infections (Ottesen and Strand, 1996).…”

Section: Effect Of Tank Surface On Fishmentioning

confidence: 99%

“…In commercial flatfish culture, when fish are kept on hard bottom tanks without sand, negative consequences have been observed, such as lower growth rates (Ottesen and Strand, 1996), development of dark pigmentation on the blind side (hypermelanosis) (Ottesen and Strand, 1996;Iwata and Kikuchi, 1998;Kang and Kim, 2013), higher prevalence of lesions (Ottesen and Strand, 1996), skin abnormalities (Ottesen and Strand, 1996) and a higher occurrence of diseases (McVicar and White, 1982).…”

Section: Introductionmentioning

confidence: 99%

“…A tendency to a higher daily growth rate in embossed tank was found as well as a weak inhibition of malpigmentation. Most of these authors hypothesize that the rougher surfaces may have a therapeutic effect because they stimulate mucus production and remove dead cells from the skin (McVicar and White, 1982;Ottesen and Strand, 1996;Ottesen et al, 2007;Kang and Kim, 2013). Reig et al (2010) studied the preference of sole (Solea senegalensis) in a short period of time (72 h) for different substrates (sand, plastic and concrete) with different texture (rough and smooth) and color (light and dark).…”

Section: Introductionmentioning

confidence: 99%

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Influence of tank bottom surface on growth and welfare of Senegalese sole ( Solea senegalensis)

Almansa

Oca

Claramunt

et al. 2017

Aquacultural Engineering

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Tank bottom surface is an important question to take into account in flatfish aquaculture considering the intimate contact that the fish have with it. The most usual materials in aquaculture tank surfaces are inert materials such as epoxy resins or plastics with null porosity, and cement that presents a high alkalinity, roughness and porosity. To improve the cement characteristics, silica fume admixture is usually added in construction industry. The aim of this study was to evaluate the effect of three types of tank bottom surfaces on growth and welfare over a Solea senegalensis population. Moreover, the degree of fin erosion, the appearance of skin lesions and malpigmentation patterns were also monitored. The bottom surfaces tested were plain cement (CE), the same plain cement blended with silica fume (10%) (SF) and epoxy coated surface (EP). Specific growth rate for each bottom surface were compared. The Image Processing Activity Index (IPAI) was used to evaluate the Senegalese sole welfare. Higher SGR and lower IPAI values were obtained in the surface of cement with silica fume, suggesting a higher welfare. The use of plain cement affected negatively the performance of fish, probably due to the high pH and alkalinity of the water in direct contact with fish skin. The null porosity of EP seems to be related to the main cause of higher activity level of fish kept on it outcoming in lower growth. Silica fume that is frequently use to improve the mechanical characteristics of plain cement, also provides benefits in terms of fish welfare.

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Section: Introductionsupporting

confidence: 66%

Section: Effect Of Tank Surface On Fishmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of tank bottom surface on growth and welfare of Senegalese sole ( Solea senegalensis)

Almansa

Oca

Claramunt

et al. 2017

Aquacultural Engineering

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“…Sand substrates, which allows burying, also reduces respiration rate and resting metabolic rate in Dover sole, indicating that sandy substrates provide less stressful environments (Peyraud and Labat ; Howell and Canario ). Substrates can also eliminate the occurrence of ambicolouration (pigmented blind sides) in flatfishes (Rabben and Huse ; Kang and Kim , ), which can increase the appeal of cultured flatfish to customers in fish markets.…”

Section: Effects Of Structural Enrichmentmentioning

confidence: 99%

Environmental enrichment for fish in captive environments: effects of physical structures and substrates

2014

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Structural environmental enrichment, that is, a deliberate addition of physical complexity to the rearing environment, is sometimes utilized to reduce the expression of the undesirable traits that fish develop in captivity. Increasing demands and regulations regarding usage of enrichment to promote fish welfare also make investigations on the effects of enrichment important. Here, we sythesize the current state‐of‐the‐art knowledge about the effects of structural environmental enrichment for fish in captive environments. We find that enrichment can affect several aspects of the biology of captive fish, for example, aggression, stress, energy expenditure, injury and disease susceptibility. Importantly, these effects are often varying in direction and magnitude, and it is clear that just addition of structure is not a solution to all problems in fish rearing. Each species and life stage needs special consideration with respect to its natural history and preferences. A multitude of different enrichment types has been investigated and many studies investigate several enrichment components at the same time, making comparisons among studies difficult. To the present date, the majority of efforts have been directed to investigate salmonid fish in stock‐fish hatcheries and cichlids from a basic research perspective. Some contexts are under‐studied with respect to environmental enrichment, for instance effects on results in basic research and welfare effects in display aquaria. There are many research opportunities left within this field. However, future studies could utilize experimental designs which make it possible to discriminate between effects of different environmental manipulations to a higher degree than what has been performed to this date.

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Molecular Basis of Left/Right Asymmetrical Pigmentation during Metamorphosis

Bao¹

2022

Flatfish Metamorphosis

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Importance of bottom type and background color for growth and blind-side hypermelanosis of the olive flounder, Paralichthys olivaceus

Cited by 18 publications

References 38 publications

Influence of tank bottom surface on growth and welfare of Senegalese sole ( Solea senegalensis)

Influence of tank bottom surface on growth and welfare of Senegalese sole ( Solea senegalensis)

Environmental enrichment for fish in captive environments: effects of physical structures and substrates

Molecular Basis of Left/Right Asymmetrical Pigmentation during Metamorphosis

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