Effects of long-term chlorpyrifos exposure on mortality and reproductive tissues of Banded Gourami (<i>Trichogaster fasciata</i>)

Sumon, Kizar Ahmed; Yesmin, M; Brink, Paul J. Van den; Bosma, R.H.; Peeters, E.T.H.M.; Rashid, Harunur

doi:10.1080/03601234.2019.1614399

Cited by 14 publications

(5 citation statements)

References 57 publications

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“…In a recent study published by Santos et al (2021), when evaluating the toxic effects of pesticides on the reproductive processes of freshwater fish based on articles published from 2000 to 2019, they observed that insecticides were present in 78% of the studies, mainly Endosulfan (35%) and Cypermethrin (13%), which are classified respectively as organochlorine and pyrethroid. The authors also highlighted that the most reported routes of action in the studies (57.5%) were reproductive endocrine disorders, with changes ranging such as decreased fertility due to histological damage to testicles and ovaries; impairment of the vitellogenesis process and interruption in the steroidogenesis process; delay in gonad maturation evidenced by alterations in the Gonadosomatic Index; alteration in reproductive and parental behavior; compromised olfactory response and consequent disorder in reproductive migrations; as well as disturbances in the coordination of courtship behavior of male and female fish and spawning time (Jaensson et al 2007, Singh & Singh 2008, Marcon et al 2015, Sumon et al 2019.…”

Section: Discussionmentioning

confidence: 99%

Changes in sperm motility of amazonian fish Tambaqui Colossoma macropomum (Cuvier 1816) (Characiformes: Serrasalmidae) exposed to two pesticides

et al. 2023

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The great biodiversity of neotropical fish species that have external fertilization as a reproductive strategy, like the tambaqui, requires more careful analyzes in toxicological tests of the various pesticides implemented in Brazilian agriculture over the last few years. In this context, the objective of the present work was to evaluate possible sperm alterations in tambaqui (Colossoma macropomum) semen exposed to two different pesticide residues. Seminal samples of sexually mature tambaqui males from a local fish farm were used. Semen was collected eight hours after hormone induction into graduated glass tubes. After initial assessment of the lack of prior activation, the experiment was carried out in a factorial scheme, testing two pesticides widely used in agricultural systems (glyphosate and fenitrothion). For each pesticide, five concentrations were tested (6, 12, 24, 120 and 240 mg/L), with motility analysis at times 0, 30 and 60 seconds after activation. As a control, activation with 0.9% NaCl solution and motility analysis at the same times described for pesticides were used. Results indicate that in natura samples exhibited initial motility of 89.2 ± 4.9% and mean duration of 100 seconds (up to 10% sperm motility). The reduction in sperm motility occurred significantly (p < 0.05) after 30 seconds in all concentrations tested, except for the concentration of 240 mg/L because no activation was observed. The tests described here demonstrate that tambaqui semen was sensitive to the process of exposure to pesticide residues, and can be used in biomonitoring analyzes of the aforementioned agricultural pesticides.

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Section: Discussionmentioning

confidence: 99%

Changes in sperm motility of amazonian fish Tambaqui Colossoma macropomum (Cuvier 1816) (Characiformes: Serrasalmidae) exposed to two pesticides

et al. 2023

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“…The mechanisms of action of the pesticides show effects at different levels of toxicity, with reproductive endocrine disorders being the most reported in more than 50% of the analyzed studies. According to Sabra and Mehana (2015), fish exposed to environmental pollutants such as insecticides, herbicides, heavy metals and xenobiotics may suffer disturbances in their natural reproductive processes, potentially resulting in changes such as decreased fertility and histological damage in the testes and in the ovaries (Cuña et al, 2011(Cuña et al, , 2013Marcon et al, 2015), impairment of the vitellogenesis process and interruption of the steroidogenesis process (Singh and Singh, 2008), delayed maturation of the gonads evidenced by changes in the gonadosomatic index (Kleinkauf et al, 2004;Sumon et al, 2019), changes in reproductive and parental behavior, impaired olfactory response and consequent disturbance of reproductive migrations, and disturbances in the Rev. Bras.…”

Section: Histopathology (Gh) Gonadosomatic Index (Gsi) Sperm Quality and Embryonic Development (Ed)mentioning

confidence: 99%

Reproductive aspects of freshwater fishes exposed to pesticide-contamined environments: A systematic review

Santos¹,

Almeida²,

Costa³

et al. 2021

Rev. Bras. Gest. Amb. Sustent.

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Fish are the predominant group of vertebrates in aquatic environments, and they are directly affected by the presence of contaminants in water bodies, which undergo changes in the structure and function of communities and dynamics of the populations. The aim of the present study was to conduct a systematic review of studies that analyze the reproductive aspects of freshwater teleosts in environments contaminated by pesticides. A systematic search for scientific articles was carried out from 2000 to 2019 using the "Web of Science" database, using the descriptors "fish reproduction", "contamination", "toxicology", "ecotoxicity" and "biomonitoring", combined with the use of boolean operators "AND" and "OR". The content analysis was performed based on the titles and the summary, with a first screening. Then, 98 articles were read in full, with 40 being selected. 24 species of fish were recorded, with a predominance of Danio rerio (17.5%). Insecticides were present in 78% of the studies, mainly Endosulfan (35%) and Cypermethrin (13%). Reproductive endocrine disorders were the most reported pathways of action (57.5%). The effects of pesticides on the reproduction of freshwater teleosts are evident, requiring studies on structural changes in gonads and a decrease in the quality of gametes.

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“…The obtained data highlighted the necessity of the further study of the impacts of soot on fish with higher tolerances to changes in the environment. Therefore, we chose pearl gourami, Trichogaster leerii (Bleeker, 1852), used in toxicological experiments [40], as well as other representatives of genus Trichogaster [41,42]. The presence of a labyrinth organ allows these fish to also breathe with air, decreasing the loading on the respiratory function of the gills [43,44].…”

Section: Introductionmentioning

confidence: 99%

Degenerative and Regenerative Actin Cytoskeleton Rearrangements, Cell Death, and Paradoxical Proliferation in the Gills of Pearl Gourami (Trichogaster leerii) Exposed to Suspended Soot Microparticles

Sudakov,

Chang,

Renn

et al. 2023

IJMS

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The effect is studied of water-suspended soot microparticles on the actin cytoskeleton, apoptosis, and proliferation in the gill epithelium of pearl gourami. To this end, the fish are kept in aquariums with 0.005 g/L of soot for 5 and 14 days. Laser confocal microscopy is used to find that at the analyzed times of exposure to the pollutant zones appear in the gill epithelium, where the actin framework of adhesion belts dissociates and F-actin either forms clumps or concentrates perinuclearly. It is shown that the exposure to soot microparticles enhances apoptosis. On day 5, suppression of the proliferation of cells occurs, but the proliferation increases to the control values on day 14. Such a paradoxical increase in proliferation may be a compensatory process, maintaining the necessary level of gill function under the exposure to toxic soot. This process may occur until the gills’ recovery reserve is exhausted. In general, soot microparticles cause profound changes in the actin cytoskeleton in gill cells, greatly enhance cell death, and influence cell proliferation as described. Together, these processes may cause gill dysfunction and affect the viability of fish.

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Effects of long-term chlorpyrifos exposure on mortality and reproductive tissues of Banded Gourami (Trichogaster fasciata)

Cited by 14 publications

References 57 publications

Changes in sperm motility of amazonian fish Tambaqui Colossoma macropomum (Cuvier 1816) (Characiformes: Serrasalmidae) exposed to two pesticides

Changes in sperm motility of amazonian fish Tambaqui Colossoma macropomum (Cuvier 1816) (Characiformes: Serrasalmidae) exposed to two pesticides

Reproductive aspects of freshwater fishes exposed to pesticide-contamined environments: A systematic review

Degenerative and Regenerative Actin Cytoskeleton Rearrangements, Cell Death, and Paradoxical Proliferation in the Gills of Pearl Gourami (Trichogaster leerii) Exposed to Suspended Soot Microparticles

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