The interactive effects of multiple stressors on physiological stress responses and club cell investment in fathead minnows

Manek, Aditya K.; Ferrari, Maud C. O.; Niyogi, Som; Chivers, Douglas P.

doi:10.1016/j.scitotenv.2013.12.042

Cited by 15 publications

(8 citation statements)

References 38 publications

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“…R. Soc. B 287: 20201947 and growth have generally found synergistic effects, rather than antagonistic or additive [61][62][63]; however, studies measuring growth rates, in juveniles especially, may not suffer from ceiling truncation issues.…”

Section: Discussionmentioning

confidence: 99%

Microplastic exposure interacts with habitat degradation to affect behaviour and survival of juvenile fish in the field

et al. 2020

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Coral reefs are degrading globally due to increased environmental stressors including warming and elevated levels of pollutants. These stressors affect not only habitat-forming organisms, such as corals, but they may also directly affect the organisms that inhabit these ecosystems. Here, we explore how the dual threat of habitat degradation and microplastic exposure may affect the behaviour and survival of coral reef fish in the field. Fish were caught prior to settlement and pulse-fed polystyrene microplastics six times over 4 days, then placed in the field on live or dead-degraded coral patches. Exposure to microplastics or dead coral led fish to be bolder, more active and stray further from shelter compared to control fish. Effect sizes indicated that plastic exposure had a greater effect on behaviour than degraded habitat, and we found no evidence of synergistic effects. This pattern was also displayed in their survival in the field. Our results highlight that attaining low concentrations of microplastic in the environment will be a useful management strategy, since minimizing microplastic intake by fishes may work concurrently with reef restoration strategies to enhance the resilience of coral reef populations.

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Section: Discussionmentioning

confidence: 99%

Microplastic exposure interacts with habitat degradation to affect behaviour and survival of juvenile fish in the field

et al. 2020

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“…Even when the stimulus causes increased behavioural responses there was no relationship to the level of plasma cortisol. The cortisol response to increased stress seems to be highly variable (Fatira et al 2014 ; Quillet et al 2014 ) and context specific (Manek et al 2014 ). Surprisingly, exposure to multiple stressors simultaneously can lead to decreased rather than an expected increase in cortisol levels (Manek et al 2014 ).…”

Section: What Are the Reasons For The Anthropomorphic View That Fish mentioning

confidence: 99%

“…The cortisol response to increased stress seems to be highly variable (Fatira et al 2014 ; Quillet et al 2014 ) and context specific (Manek et al 2014 ). Surprisingly, exposure to multiple stressors simultaneously can lead to decreased rather than an expected increase in cortisol levels (Manek et al 2014 ). Thus, changes in cortisol levels in fish are better explained by autonomic responses to external environmental stresses rather than by internally generated mental states such as fear or pain.…”

Section: What Are the Reasons For The Anthropomorphic View That Fish mentioning

confidence: 99%

Fish do not feel pain and its implications for understanding phenomenal consciousness

Key

2014

Biol Philos

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Phenomenal consciousness or the subjective experience of feeling sensory stimuli is fundamental to human existence. Because of the ubiquity of their subjective experiences, humans seem to readily accept the anthropomorphic extension of these mental states to other animals. Humans will typically extrapolate feelings of pain to animals if they respond physiologically and behaviourally to noxious stimuli. The alternative view that fish instead respond to noxious stimuli reflexly and with a limited behavioural repertoire is defended within the context of our current understanding of the neuroanatomy and neurophysiology of mental states. Consequently, a set of fundamental properties of neural tissue necessary for feeling pain or experiencing affective states in vertebrates is proposed. While mammals and birds possess the prerequisite neural architecture for phenomenal consciousness, it is concluded that fish lack these essential characteristics and hence do not feel pain.

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“…Many studies have been conducted since the discovery of alarming cues trying to understand the connection between cell size, shape, numbers, and the predation risk. These studies have discovered that the presence of club cells might not result fright reaction (Whitear, 1986); club cell numbers are not directly proportional with the predation risk level (Chivers et al, 2007; Mirza, 2009); alarm cue production do not reduce even if club cells are suppressed or absent (Carreau‐Green et al, 2008; Manek et al, 2012, 2014). Besides many chemicals were found in the secretion of club cells such as chondroitin sulfate, keratin sulfate, serotonin—of which absence was thought to be the reason of fright reaction absence in eels (Whitear, 1986)—and calcium binding proteins that might be used in, for example, organismal development, cytoskeletal organization, cell motility, and differentiation (Fairless et al, 2019; Kovács‐Öller et al, 2019).…”

Section: Osteichthyesmentioning

confidence: 99%

Comparison of vertebrate skin structure at class level: A review

Akat

Yenmiş

Pombal

et al. 2022

The Anatomical Record

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The skin is a barrier between the internal and external environment of an organism. Depending on the species, it participates in multiple functions. The skin is the organ that holds the body together, covers and protects it, and provides communication with its environment. It is also the body's primary line of defense, especially for anamniotes. All vertebrates have multilayered skin composed of three main layers: the epidermis, the dermis, and the hypodermis. The vital mission of the integument in aquatic vertebrates is mucus secretion. Cornification began in apmhibians, improved in reptilians, and endured in avian and mammalian epidermis. The feather, the most ostentatious and functional structure of avian skin, evolved in the Mesozoic period. After the extinction of the dinosaurs, birds continued to diversify, followed by the enlargement, expansion, and diversification of mammals, which brings us to the most complicated skin organization of mammals with differing glands, cells, physiological pathways, and the evolution of hair. Throughout these radical changes, some features were preserved among classes such as basic dermal structure, pigment cell types, basic coloration genetics, and similar sensory features, which enable us to track the evolutionary path. The structural and physiological properties of the skin in all classes of vertebrates are presented. The purpose of this review is to go all the way back to the agnathans and follow the path step by step up to mammals to provide a comparative large and updated survey about vertebrate skin in terms of morphology, physiology, genetics, ecology, and immunology.

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The interactive effects of multiple stressors on physiological stress responses and club cell investment in fathead minnows

Cited by 15 publications

References 38 publications

Microplastic exposure interacts with habitat degradation to affect behaviour and survival of juvenile fish in the field

Microplastic exposure interacts with habitat degradation to affect behaviour and survival of juvenile fish in the field

Fish do not feel pain and its implications for understanding phenomenal consciousness

Comparison of vertebrate skin structure at class level: A review

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