The effects of sub-lethal salinity concentrations on the anti-predator responses of fathead minnows

Hoover, Zachary; Ferrari, Maud C. O.; Chivers, Douglas P.

doi:10.1016/j.chemosphere.2012.08.051

Cited by 15 publications

(7 citation statements)

References 32 publications

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“…; Sanzo and Hecnar ; Hoover et al. ). Extreme shifts in environmental quality can result in the expression of highly maladapted phenotypes and strong selection that ultimately lead to local extinctions (Moritz and Agudo ; Urban ).…”

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confidence: 99%

“…When environmental conditions change, organisms may experience physiological or developmental costs that result in the expression of plastic phenotypes that are maladaptive, which has been termed nonadaptive plasticity (Grether 2005;Ghalambor et al 2007). For example, progressive salinization of freshwater habitats can impose osmoregulatory stress that disrupts basic homeostatic and developmental processes of resident organisms, which can usurp energy reserves and inhibit allocations to other important fitness correlates such as growth, foraging, or antipredator responses (Chinathamby et al 2006;Sanzo and Hecnar 2006;Hoover et al 2013). Extreme shifts in environmental quality can result in the expression of highly maladapted phenotypes and strong selection that ultimately lead to local extinctions (Moritz and Agudo 2013;Urban 2015).…”

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confidence: 99%

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Local adaptation for enhanced salt tolerance reduces non‐adaptive plasticity caused by osmotic stress

Albecker

McCoy

2019

Evolution

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Organisms often respond to environmental change via phenotypic plasticity, in which an individual modulates its phenotype according to the environment. Highly variable or changing environments can exceed physiological limits and generate maladapted plastic phenotypes, which is termed nonadaptive plasticity. In some cases, selection may reduce the negative or disruptive impacts of environmental stress and produce locally adapted populations. Salt is an increasingly prevalent contaminant of freshwater systems and can induce nonadaptive plastic phenotypes for freshwater organisms like amphibians. Hyla cinerea is a frog species with populations inhabiting brackish, coastal habitats, so we use this species to test whether coastal populations are locally adapted to tolerate saltwater by determining how salt exposure during the embryonic and larval stages alters mortality and plastic developmental and metamorphic phenotypes of coastal and inland populations. Coastal frogs have higher survival, faster growth rates, and metamorphose sooner than inland frogs across salinities. Coastal frogs also metamorphose smaller (likely a consequence of earlier metamorphosis) yet maintain constant size, while higher salinities reduce metamorphic size for inland frogs. Coastal frogs evolved to minimize nonadaptive and disruptive impacts of saltwater during larval development and accelerate the larval period to reduce time spent in a stressful environment.

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confidence: 99%

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confidence: 99%

Local adaptation for enhanced salt tolerance reduces non‐adaptive plasticity caused by osmotic stress

Albecker

McCoy

2019

Evolution

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“…For instance, male desert goby exert less aggressive behaviour but do not change courtship behaviour at elevated salinity (Lehtonen et al 2016). Further, fathead minnows exposed to 8000 ppm salinity spent less time moving compared to 4000 and 1000 ppm salinity (Hoover et al 2013). Additionally, the fathead minnows exposed to 4000 and 8000 ppm salinity could not distinguish between low and high alarm cues shown through anti-predator behaviour, which minnows exposed to 1000 ppm salinity could (Hoover et al 2013).…”

Section: Discussionmentioning

confidence: 94%

“…Further, fathead minnows exposed to 8000 ppm salinity spent less time moving compared to 4000 and 1000 ppm salinity (Hoover et al 2013). Additionally, the fathead minnows exposed to 4000 and 8000 ppm salinity could not distinguish between low and high alarm cues shown through anti-predator behaviour, which minnows exposed to 1000 ppm salinity could (Hoover et al 2013). Furthermore, sailfin molly (Poecilia latipinna) prefer to remain in freshwater with predator cue in comparison to salt water (Tietze and Gerald 2016).…”

Section: Discussionmentioning

confidence: 97%

“…By contrast, in an invasive cichlid aggression increased when exposed to brackish water compared to freshwater (Lorenz et al 2016). Exposure to increased salinity increased swimming activity in pikeperch (Sander lucioperca) (Scott et al 2008), and reduced anti-predator responses in fathead minnows (Hoover et al 2013). However, there are studies showing no effects of salinity upon behaviour in other freshwater fish, such as in the Iberian barbel (Luciobarbus bocagei) (Leite et al 2019).…”

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confidence: 98%

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Invasive round goby shows higher sensitivity to salinization than native European perch

Bäckström¹,

Winkelmann²

2022

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Salinity is an influential abiotic environmental factor in aquatic species, specifically in freshwater, where salinization causes ecosystem degradation. Secondary salinization, that is increases in salinity due to anthropogenic activities, can affect both osmoregulation and behaviour in freshwater fishes. It is generally believed that invasive species handle climatic change and environmental degradation better than native species, which is one reason for their invasion success. However, how invasive and native species cope with salinity changes remains little understood. Therefore, we investigated how low (500 µS/cm) and high salinity (2000 µS/cm) conditions affected oxygen consumption and behaviour in the invasive round goby (Neogobius melanostomus) and the native European perch (Perca fluviatilis). Our results showed that in round goby oxygen consumption increased and swimming and non-swimming movements changed in response to salinity increments, whereas European perch was not affected by salinity. Thus, it seems as if the invasive round goby is more sensitive to changes in salinity than the native European perch. Our results fit with the minority of studies indicating invasive species being less tolerant than some native species to environmental changes. This finding could be explained by the adaptation of round goby to low salinity due to its long establishment in River Rhine. Further, our results are also confirming that the effect of salinity is species-specific. In addition, European perch and round goby show diametrically different behavioural response to disturbance which could be an effect of holding different ecological niches as well as their anatomical differences.

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Warding off freshwater salinization: Do current criteria measure up?

Kelly,

Free,

Kolada

et al. 2023

WIREs Water

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Salinization is a global threat to freshwater habitats that has been intensified by climate change. Monitoring, assessment and management of salinity is therefore essential. The first step is to set criteria that are sufficiently stringent to protect ecosystem health. However, many countries have not yet defined criteria, and there are substantial differences between criteria. This has been noted in the EU, where salinity is a required “supporting element” for ecological status in inland waters but also for implementation of UN Sustainable Development Goal (SDG) indicator 6.3.2. for “good ambient water quality” where different approaches and widely different threshold values were reported for salinity criteria. Much of this information has not been published and is difficult to access, hindering further efforts to address the problem. We first discuss the implications of salinization for freshwater ecological health. We go on to discuss the principles and guidelines on how salinity criteria to protect ecology should be established. Next, we review salinity criteria submitted as part of implementation of SDG indicator 6.3.2 and the EU Water Framework Directive. Finally, we discuss setting salinity thresholds in an already‐warming world and the challenges facing anyone trying to develop salinity criteria to protect freshwater ecosystems.This article is categorized under: Water and Life > Stresses and Pressures on Ecosystems Water and Life > Conservation, Management, and Awareness Science of Water > Water Quality

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The effects of sub-lethal salinity concentrations on the anti-predator responses of fathead minnows

Cited by 15 publications

References 32 publications

Local adaptation for enhanced salt tolerance reduces non‐adaptive plasticity caused by osmotic stress

Local adaptation for enhanced salt tolerance reduces non‐adaptive plasticity caused by osmotic stress

Invasive round goby shows higher sensitivity to salinization than native European perch

Warding off freshwater salinization: Do current criteria measure up?

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The effects of sub-lethal salinity concentrations on the anti-predator responses of fathead minnows

Cited by 15 publications

References 32 publications

Local adaptation for enhanced salt tolerance reduces non‐adaptive plasticity caused by osmotic stress

Local adaptation for enhanced salt tolerance reduces non‐adaptive plasticity caused by osmotic stress

﻿Invasive round goby shows higher sensitivity to salinization than native European perch

Warding off freshwater salinization: Do current criteria measure up?

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Invasive round goby shows higher sensitivity to salinization than native European perch