Skin Biopsies as Tools to Measure Fish Coloration and Colour Change

Svensson, P. Andreas; Nilsson-Sköld, Helen

doi:10.5772/19913

Cited by 4 publications

(4 citation statements)

References 42 publications

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“…This is known as physiological color change, making it challenging to analyze their color accurately. However, a reliable method for analysis is presented in the theory by [24], which involves observing morphological discoloration by examining chromatophore cells using a microscope and the skin biopsy method [8]. The study found that all scales had black spots, particularly the anterior scales, compared to the fins.When comparing males and females, the black dots are more visible in females.…”

Section: Resultsmentioning

confidence: 99%

“…According to [6,7], melanophores are black to brown colored chromatophore cells with melanosome organelles, containing melanin pigment in the cytoplasm, and cell sizes ranging from 10 µm to 100 µm [23]. The difference in the number of male and female melanophore cells is due to the sexual status of the fish [8]. The results of the microscopic observations are shown in Figure 2-4 a.…”

Section: Resultsmentioning

confidence: 99%

“…Erytrophore and xanthophore cells are scattered in different body tissues of fish, especially in the skin, scales, and fins. These cells can be observed by biopsy [8]. Rainbow ornamental fish are generally easily stressed and change color when placed in an aquarium [9], it is known as physiological color change [10], making it difficult to measure color using a colorimeter or digital images.…”

Section: Introductionmentioning

confidence: 99%

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Carotenoid pigment content and skin microscopic appearance of cultured Ajamaru Rainbowfish (Melanotaenia ajamaruensis)

Murniasih,

Nur,

Sholichah

et al. 2023

BIO Web Conf.

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The color of Ajamaru Rainbowfish (Melanotaenia ajamaruensis), which is adapted to the tank culture tends to decrease in brightness and become dull. It is necessary to improve the quality of color, especially through the diet. This study was conducted to determine the effect of the supplementation of carotenoid on the diet on the amount of carotenoid pigments and the microscopic appearance of the skin, fins, and scales of the Ajamaru rainbowfish. The research used a factorial design, consisting of two factors and three replications. The Factors were three different diets (carotenoid-free diet, astaxanthin, and lutein diet) as factor 1, and gender (male and female) as factor 2. The observed data were carotenoid content in fins, skin, and flesh; the microscopic appearance of fins and scales was measured at the end of the study. The results showed that the supplementation of astaxanthin and lutein to the feed increased the content of carotenoid pigments in the fins and scales of the Ajamaru rainbowfish; the highest values in the fins and skin of the male fish were 202.90 and 8.53 ppm, respectively. The effect of astaxanthin and lutein supplementation on color can be observed microscopically in the tissue of scales and fins.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Carotenoid pigment content and skin microscopic appearance of cultured Ajamaru Rainbowfish (Melanotaenia ajamaruensis)

Murniasih,

Nur,

Sholichah

et al. 2023

BIO Web Conf.

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“…Pictures of each single fish from each feeding group was captured individually using a camera with 16MP and 3x magnification. The pictures were then analyzed for red index using the software using the following formula, as described by Svensson et al (2011) .

…”

Section: Methodsmentioning

confidence: 99%

Sustainable aquafeed development: Incorporating select fruit wastes into Zebrafish diets using mathematical model-based approach

Ibrahim,

Aizam,

Liew

et al. 2023

Saudi Journal of Biological Sciences

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The Importance of the Multicomponent Display in Sexual Selection of Black Morph Girardinus metallicus (Pisces: Poeciliidae)

Wojan¹

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Skin Biopsies as Tools to Measure Fish Coloration and Colour Change

Cited by 4 publications

References 42 publications

Carotenoid pigment content and skin microscopic appearance of cultured Ajamaru Rainbowfish (Melanotaenia ajamaruensis)

Carotenoid pigment content and skin microscopic appearance of cultured Ajamaru Rainbowfish (Melanotaenia ajamaruensis)

Sustainable aquafeed development: Incorporating select fruit wastes into Zebrafish diets using mathematical model-based approach

The Importance of the Multicomponent Display in Sexual Selection of Black Morph Girardinus metallicus (Pisces: Poeciliidae)

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