The Role of Modelling in Fish and Fishery Ecotoxicology

Lawrence, Andrew J

doi:10.1002/9780470999691.ch9

Cited by 2 publications

(2 citation statements)

References 35 publications

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“…Likewise, the atrophy exhibited in the kidney tubules infers reduced functionally, especially when combined with the presence of vacuolated regions within the cells. Cellular and tissue atrophy following exposure to chemical pollution can be the result of an increase in protein breakdown, a decrease in protein synthesis, or membrane damage, notably lysosomal, leading to cellular dysfunction (Lawrence 2003). Insomuch as they are responsible for maintaining homeostasis of body fluids and excretion, any failure or impairment of kidney function can have severe consequences for the organism.…”

Section: Discussionmentioning

confidence: 99%

Organ damage in Atlantic herring larvae as a result of ocean acidification

Frommel

Maneja

Lowe

et al. 2014

Ecological Applications

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Abstract. The dissolution of anthropogenically emitted excess carbon dioxide lowers the pH of the world's ocean water. The larvae of mass spawning marine fishes may be particularly vulnerable to such ocean acidification (OA), yet the generality of earlier results is unclear. Here we show the detrimental effects of OA on the development of a commercially important fish species, the Atlantic herring (Clupea harengus). Larvae were reared at three levels of CO 2 : today (0.0385 kPa), end of next century (0.183 kPa), and a coastal upwelling scenario (0.426 kPa), under near-natural conditions in large outdoor tanks. Exposure to elevated CO 2 levels resulted in stunted growth and development, decreased condition, and severe tissue damage in many organs, with the degree of damage increasing with CO 2 concentration. This complements earlier studies of OA on Atlantic cod larvae that revealed similar organ damage but at increased growth rates and no effect on condition.

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Section: Discussionmentioning

confidence: 99%

Organ damage in Atlantic herring larvae as a result of ocean acidification

Frommel

Maneja

Lowe

et al. 2014

Ecological Applications

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“…As for the propagation into the food chain, it is also important to consider that fish, mussels, and crustaceans surpassing certain POP levels, are not allowed for consumption according to the European Commission [81]. This would cause the discard of marine food with its consequent damage to the economic benefits of the fisheries, catering and tourism sectors (the main economical pillars in the coastal Mediterranean), as already observed in other areas [82,83].…”

Section: ♦ ▓ ░ ▒mentioning

confidence: 99%

Determination of PAHs, PAH-Derivatives and Other Concerning Substances in Posidonia oceanica Seagrass and Marine Sediments by High Resolution Mass Spectrometry

Astudillo-Pascual

Tudor²,

Domínguez

et al. 2023

JMSE

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The Posidonia oceanica decline due to climate change and other anthropogenic pressures, such as chemical pollution, is well known in the scientific community. However, a comprehensive study of the full content of the organic micropollutants found in this significant seagrass has not yet been carried out. Second, an eco-friendly extraction procedure that does not require a large sample, preserves the seagrass’s ecological integrity and functions, and follows green-chemistry principles, is lacking. These information gaps represent the aims of this study. For this purpose, trials with diverse simple and affordable extraction methods to detect one of the most ubiquitous contaminants (polycyclic aromatic hydrocarbons or PAHs) were conducted. As a result, the use and validation of a polytron homogenizer and an ultrasonic bath were proposed for the extraction of priority PAHs from tissues of P. oceanica and marine sediments, respectively. Tissues (leaves and rhizomes) of P. oceanica and sediment samples were collected, extracted, and subjected to a thorough analysis, i.e., target, suspect, and unknown screenings, using gas chromatography coupled to high resolution mass spectrometry (GC-Q-Orbitrap MS). Target analysis revealed seven priority parent-PAHs, whilst during the suspect screening, four PAH-derivatives and three other parent-PAHs were tentatively identified. In the additional third unknown analysis, 11 structures, several with concerning toxicity, were also tentatively identified. Numerous of the identified compounds showed elevated detection frequency in the environmental samples, even reaching 100%, such as the cases of the parent-PAHs (naphthalene, phenanthrene and retene), some PAH-derivatives, one UV stabilizer, and plastic additives along with pesticides. The methods proposed here should be considered for future monitoring of P. oceanica, as well as the three-way analytic approach (target, suspect and unknown), to obtain a more real and accurate idea of the organic micropollutants content in the environment.

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The Role of Modelling in Fish and Fishery Ecotoxicology

Cited by 2 publications

References 35 publications

Organ damage in Atlantic herring larvae as a result of ocean acidification

Organ damage in Atlantic herring larvae as a result of ocean acidification

Determination of PAHs, PAH-Derivatives and Other Concerning Substances in Posidonia oceanica Seagrass and Marine Sediments by High Resolution Mass Spectrometry

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