Chapter 18 Fish as bioindicators

Chovanec, Andreas; Hofer, R.; Schiemer, F.

doi:10.1016/s0927-5215(03)80148-0

Cited by 87 publications

(78 citation statements)

References 115 publications

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“…ROS production is a metabolic response that attempts to increase hydrolysis of the toxins and eliminate damage to fish brain, which is similar to previous results (Chovanec et al, 2003). This situation is particularly obvious in fish brain compared with other organs.…”

Section: Ros Changes In Aphantoxin-exposed Zebrafish Brainsupporting

confidence: 84%

Lipid peroxidation and antioxidant responses in zebrafish brain induced by Aphanizomenon flos-aquae DC-1 aphantoxins

Zhang

et al. 2013

Aquatic Toxicology

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Section: Ros Changes In Aphantoxin-exposed Zebrafish Brainsupporting

confidence: 84%

Lipid peroxidation and antioxidant responses in zebrafish brain induced by Aphanizomenon flos-aquae DC-1 aphantoxins

Zhang

et al. 2013

Aquatic Toxicology

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“…However, most of the fish populations have seriously declined in rivers and streams of Bangladesh due to over exploitation augmented by various ecological changes and degradation of the natural habitats (Hossain et al 2012a,b). Subsequently they are often used as bioindicators for assessment of water quality, river network connectivity or flow regime (Chovance et al 2003). Nowadays, fish biodiversity and management of associated habitats is a great challenge (Dudgeon et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Fish species diversity, fishing gears and crafts from the Buriganga river, Dhaka

Baki

Hossain

Bhouiyan

et al. 2017

Bangladesh J. Zool.

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Fish species, fishing gear and crafts in the most polluted river Buriganga were inventorial. During December, 2012 to November, 2013, a total of 56 fish species belonging to 20 families and 9 orders were recorded. Cypriniformes observed to be the most dominant order with 18 species (32%). The highest fish diversity was recorded during monsoon season, and lowest during winter. Maximum diversity variance (7.616 ± 2.76 Sd) observed in the monsoon season for 56 species (220 individuals). Also 12 different types of gears of two categories (active and passive) and two types of crafts were observed to be used for fishing in the study area. The highest number of species of fishes (n = 56) recorded in August and lowest (n = 3) in April and May 2013. Strong correlation between water depth and number of fish species (r = 0.74) and fishing activities (r = 0.96) was observed.

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“…3 particular aquatic environment (Chovanec et al 2003;Dragun et al 2007), and second, this specific species as a member of genus Squalius, which is wide spread in European rivers, provides the possibility for comparison among distant geographical regions. Selection of appropriate organ for histopathological analyses, on the other hand, was governed by the wish to recognize the consequences of contamination events promptly after they occur.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of histopathological alterations in the gills of Vardar chub ( Squalius vardarensis Karaman) as an indicator of river pollution

Barišić

Dragun

Ramani³

et al. 2015

Ecotoxicology and Environmental Safety

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Quantification of histopathological alterations in the gills of Vardar chub (Squalius vardarensisKaraman) was performed in 2012 in rivers of north-eastern Macedonia, with the aim to examine the effects of water quality in the rivers (Zletovska and Kriva River -impacted by active Pb/Zn mines; Bregalnica River -contaminated by agricultural waste). The biological alterations in chub were classified as: circulatory disturbances, regressive and progressive changes, but their severity differed.Altogether the mildest changes were observed in the gills of chub from the Bregalnica River, a less polluted river, whereas mining impacted rivers were characterized by more severe alterations. In the gills of chub from the Zletovska River, which is highly contaminated with numerous metals, sulphates and chlorides, the highest lesion indices were found for the regressive changes of both epithelium and supporting tissue, with typical lesions referring to atrophy, thinning and lifting of epithelial cells, necrosis of epithelium and chloride cells, as well as deformations of lamellar cartilaginous base. Gill damages of chub from the Kriva River were overall milder compared to the Zletovska River, in accordance with pollution status. In the gills of chub from that river, progressive changes were more pronounced, specifically severe hyperplasia of mucous cells and epithelium in the interlammellar space, leading to fusion of lamellae, as well as hypertrophy of chloride cells. The comparison between seasons indicated higher intensity of progressive changes in all three rivers in autumn, when water level was very low, and consequently, water contamination was more pronounced due to concentration effect. The pattern and severity of histopathological alterations in the chub gills reflected differences in contamination levels and type of contaminants in different rivers and sampling periods, and thus have been proven as a valuable indicator of water quality.

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Chapter 18 Fish as bioindicators

Cited by 87 publications

References 115 publications

Lipid peroxidation and antioxidant responses in zebrafish brain induced by Aphanizomenon flos-aquae DC-1 aphantoxins

Lipid peroxidation and antioxidant responses in zebrafish brain induced by Aphanizomenon flos-aquae DC-1 aphantoxins

Fish species diversity, fishing gears and crafts from the Buriganga river, Dhaka

Evaluation of histopathological alterations in the gills of Vardar chub ( Squalius vardarensis Karaman) as an indicator of river pollution

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