Correction: The effect of ocean warming on black sea bass (Centropristis striata) aerobic scope and hypoxia tolerance

Slesinger, Emily; Andres, Alyssa; Young, Rachael; Seibel, Brad A.; Saba, Vincent S.; Phelan, Beth; Rosendale, John E.; Wieczorek, Daniel; Saba, Grace

doi:10.1371/journal.pone.0244002

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“…Ocean warming is also expected to lead to increased metabolism and disrupted metabolic activity in fishes [26,27], triggering an increased production of reactive oxygen species (ROS), such as the singlet oxygen, the superoxide anion, the hydrogen peroxide, and the hydroxyl radical, during the aerobic metabolism [28], causing protein, lipid and DNA damages. Moreover, temperature is responsible for influencing the fatty acid (FA) content in marine fishes [29,30], which are the "building blocks" of lipids, with important roles in cellular membrane formation, protein modification, energy storage, among others [31].…”

Section: Introductionmentioning

confidence: 99%

Differential Effects of Food Restriction and Warming in the Two-Spotted Goby: Impaired Reproductive Performance and Stressed Offspring

Lopes¹,

Murdoch

Martins-Cardoso³

et al. 2022

Fishes

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Climate change is a growing threat to marine organisms and ecosystems, and it is already modifying ocean properties by, for example, increasing temperature and decreasing pH. Increasing water temperature may also lead to an impairment of primary productivity and an overall depletion of available zooplankton. Understanding how the crossover between warming and zooplankton availability impacts fish populations has paramount implications for conservation and mitigation strategies. Through a cross factorial design to test the effects of ocean temperature and food availability in a temperate marine teleost, Pomatochistus flavescens, we showed that hindered feeding impacted sheltering and avoidance behaviour. Also, low food availability impaired fish reproduction, particularly male reproduction, as the expression of cyp11b1, a gene with a pivotal role in the synthesis of the most important fish androgen, 11-ketotestosterone, was significantly reduced under a low food regime. In contrast, temperature alone did not affect reproductive success, but offspring showed increased saturated fatty acid content (embryos) and increased lipid peroxidation (larvae). Altogether, food availability had a stronger effect on fitness, showing that coping with elevated temperatures, an ability that may be expected in shallow-water fish, can be indirectly impacted, or even overwhelmed, by the effects of ocean warming on primary productivity and downstream ecological processes.

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