Study of the Application of Fish Scale as Bioindicator of Heavy Metal Pollution (Pb, Zn) in the Cyprinus carpio of the Caspian Sea

Darafsh, F.; Mashinchian, A.; Fatemi, Mohamadreza; Jamili, Shahla

doi:10.3923/rjes.2008.438.444

Cited by 11 publications

(5 citation statements)

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“…Functionally, the mechanical protection against predators (Benjamin, Juha, Mary, & Christine, 2008) and acting up as a hydrodynamic tool for locomotor performance (Sudo, Tsuyuki, Ito, & Ikohagi, 2002; Wainwright & Lauder, 2016) are the main functions of scales in fishes. Also, in environmental studies, fish scales are used as an indicator of water quality to detect environmental pollution and conditions (Darafsh, Mashinchian, Fatemi, & Jamili, 2008; Kaur & Dua, 2012; Khanna, Sarkar, Gautam, & Bhutiani, 2007).…”

Section: Introductionmentioning

confidence: 99%

Digital light microscopy to characterize the scales of two goatfishes (Perciformes; Mullidae)

Sabbah

Teimori

Hesni

2020

Microscopy Res & Technique

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The normal and lateral line scales from above the head and four flank regions were investigated in two goatfishes by using light microscopy to evaluate the microscopic characteristics of scale surface ornamentation from different body parts of these fishes and to add new morphological data for their discrimination. The body scales were removed and digital images captured with a Dino‐Lite digital camera connected to a Leica compound microscope. The presence of both transverse and longitudinal radii was a distinctive characteristic for the scales of studied goatfishes. The most distinctive features of the key scales discriminating the two goatfishes were the scale shape, the presence of irregular grooves in scale surface, the presence of transverse radii in the lateral fields, and the availability of lepidont at the anterior field. The lateral line scale ornamentations were almost similar in two species; however, the lateral line canal was branching in Parupeneus heptacanthus. Scale extension index indicated that in both species, the dimension of normal key scales tends to the right, while the dimension of lateral line scales tends to the left. This study accentuated that scales from different body regions may exhibit variation in surface ornamentations, that scale morphology could successfully be used to discriminate the examined goatfishes, and that the use of fish scale microscopy is an easy and relatively rapid method and does not require fish sacrifice. Since fish identification is essential for the conservation and management of species, the use of scale morphology to this purpose appears particularly promising.

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Section: Introductionmentioning

confidence: 99%

Digital light microscopy to characterize the scales of two goatfishes (Perciformes; Mullidae)

Sabbah

Teimori

Hesni

2020

Microscopy Res & Technique

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“…A dried sample (1 g) was digested with 10 mL of HNO 3 on a hot plate at 80°C for 1 h. Because lipids (oil) were a significant fraction of most tissues, 1-2 mL of 35% H 2 O 2 was added for lipid digestion. The samples were further digested at 150°C for 3 h. After cooling, the samples were transferred to 50 mL volumetric flasks and diluted with deionized water to 50 mL (Darafsh et al, 2008). Blank samples were prepared in the same manner as the fish tissue samples.…”

Section: Sampling and Sample Preparationmentioning

confidence: 99%

Heavy Metal Concentrations in Tissues of Major Carp and Exotic Carp from Bhagwanpur Fish Pond, India

Negi¹,

Maurya²

2015

J. of Fisheries and Aquatic Science

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Aquatic ecosystem pollution by heavy metals is a worldwide concern. Heavy metals have the ability to bioaccumulate in aquatic organisms, particularly fish, which is a source of livelihood for humans. Between March 2012 and February 2014, we assessed heavy metal (Cu, Cr, Pb, Ni, Zn and Cd) contamination in two food fish species (Labeo rohita and Hypophthalmichthys molitrix) selected from Bhagwanpur fish pond in Roorkee, Haridwar, India. After acid digestion, the dried samples of fish tissues were analyzed for heavy metal concentrations by using atomic absorption spectrophotometery. Data obtained was analyzed using two way analysis of variance and Pearson's correlation coefficient. The mean absorption of metals in different organs of L. rohita and H. molitrix ranged from 5.754±2.591-56.851±12.569 μg gG 1 dry weight and from 5.455±3.651-53.625±11.432 μg gG 1 dry weight, respectively. Heavy metal absorption was the highest in gill and liver tissues and the lowest in muscle tissues. Among all metals, Zn had the highest concentration in all the fish tissues. Statistical analysis revealed a significant variation (p<0.05) in heavy metal concentrations in the fish tissues during different seasons. The highest concentrations of heavy metals were found in the summer and the lowest in the spring. The concentrations of most of the studied heavy metals in the fish muscle (the edible part), liver, gill and scale tissues were higher than the permissible limits proposed by the World Health Organization, Food and Agriculture Organization and Ministry of Agriculture, Fisheries and Food.

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“…Studies on the application of scales and otoliths in the metal exposure assessment of freshwater ecosystems and their comparison to soft tissues as bioindicators are rare [12]. Thus, the goal of the present study was to assess whether metal accumulation in hard tissues (scales, otoliths) reflects metal exposure in correspondence to soft tissues (liver, muscle) of brown trout (Salmo trutta Linnaeus, 1758) and their intestinal parasites, acanthocephalans (Dentitruncus truttae Sinzar, 1955).…”

Section: Introductionmentioning

confidence: 99%

“…This is especially valid for hard tissues, such as fish scales and otoliths, which offer a permanent record of metal exposure over the life span of a fish. To date, fish hard tissues were mostly applied for stock Environments 2022, 9, 14 2 of 16 discrimination [5,6], movement studies [7,8] and only to a lesser extent as environmental indicators of pollution [9][10][11][12][13], which were mostly represented by fish soft tissues, such as liver, gills and muscle [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Application of Calcified Structures in Fish as Indicators of Metal Exposure in Freshwater Ecosystems

et al. 2022

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Although there are common and well-established bioindicator organisms and tissues, there is still a need for reliable and sensitive bioindicators in aquatic environments. In the present pilot study, calcified structures in fish were applied as indicators of metal exposure in combination with commonly used fish soft tissues and intestinal parasites, therefore comprising short- and long-term indicators. Patterns of metal accumulation and distribution in soft (muscle, liver) and hard (scales, otoliths) tissues of brown trout (Salmo trutta Linnaeus, 1758) and their intestinal parasites, acanthocephalans (Dentitruncus truttae Sinzar, 1955), from the Krka River influenced by industrial and municipal wastewaters were estimated and compared. Most elements had higher levels in acanthocephalans, scales and liver than muscle and otoliths, possibly reflecting differences in metal uptake routes, tissue function and metabolic activity. Despite the recorded differences in metal contents, all applied bioindicators reflected environmental conditions in a similar way, indicating higher levels of most elements in fish from the contaminated rather than from the reference site. Acanthocephalans were confirmed as sensitive bioindicators due to effective metal accumulation capacity, while the combination of soft and hard tissues provided extended temporal information on metal exposure. Wastewater impact was evidenced as moderate metal pollution by all applied indicators and pointed to present but also long-term disturbances in the Krka River and the importance of continuous monitoring and protective actions.

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Study of the Application of Fish Scale as Bioindicator of Heavy Metal Pollution (Pb, Zn) in the Cyprinus carpio of the Caspian Sea

Cited by 11 publications

References 1 publication

Digital light microscopy to characterize the scales of two goatfishes (Perciformes; Mullidae)

Digital light microscopy to characterize the scales of two goatfishes (Perciformes; Mullidae)

Heavy Metal Concentrations in Tissues of Major Carp and Exotic Carp from Bhagwanpur Fish Pond, India

Application of Calcified Structures in Fish as Indicators of Metal Exposure in Freshwater Ecosystems

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