Ocean freshening and acidification differentially influence mortality and behavior of the Antarctic amphipod Gondogeneia antarctica

Park, Seojeong; Ahn, In-Young; Sin, Eunchong; Shim, Jae-Seol; Kim, Tae−Won

doi:10.1016/j.marenvres.2019.104847

Cited by 15 publications

(6 citation statements)

References 59 publications

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“…The values chosen for temperature increase respond to scenarios foreseen by the IPCC ( 2007) for sea surface temperature (see scenarios in their SPM1 table), and to a trend observed in Potter Cove from the early 1990's to 2009 (Schloss et al, 2012). Regarding the low salinity values, they are frequently observed in Potter Cove after massive glacial meltwater inflow into the coves in King George Island (Schloss, 1997;Park et al, 2020). These events are likely to be more frequent in the future (IPCC, 2019).…”

Section: Sampling Site and Experimental Designmentioning

confidence: 90%

Response of a natural Antarctic phytoplankton assemblage to changes in temperature and salinity

Antoni

Almandoz

Ferrario

et al. 2020

Journal of Experimental Marine Biology and Ecology

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Section: Sampling Site and Experimental Designmentioning

confidence: 90%

Response of a natural Antarctic phytoplankton assemblage to changes in temperature and salinity

Antoni

Almandoz

Ferrario

et al. 2020

Journal of Experimental Marine Biology and Ecology

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“…The reported effects of an increase in temperature include changes in growth [10,11], behavior [12,13], metabolism [14,15], and mortality [12,16]. Salinity effects include abnormal endogenous rhythms [17], changes in behavior [18][19][20], decreased condition index [21,22], and increased mortality [23]. Short-term temperature and salinity stressors, such as heatwaves and heavy rainfall, can threaten growth, recruitment, and survival at the population level [24,25].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Temperature and Salinity Stressors on the Survival, Condition and Valve Closure of the Manila Clam, Venerupis philippinarum in a Holding Facility

Bae

Joo

et al. 2021

JMSE

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This article investigates the response of the Manila clam Venerupis philippinarum to possible temperature and salinity changes in a holding facility. First, clams are exposed to four temperatures for 15 days. Valve closure and survival of clams exposed to seawater at 18 °C are higher than those exposed to seawater at 24 °C. Second, clams are exposed to six salinities for 15 days. Survival of clams exposed to two salinity fluctuation conditions (24–30 and 27–24 psu) is lower than that of clams exposed to constant 30 psu conditions. Valve closures of clams exposed to constant low salinity conditions (24 psu) and two salinity fluctuation conditions (24–30 and 27–24 psu) are higher than those exposed to constant 30 psu conditions. Lastly, clams are exposed to two different temperatures and three different salinities conditions for eight days. Valve closure and survival decreased significantly under the combination of 24 °C and 18 psu. These results suggest that an increase in temperature or a wider range of salinity fluctuations are detrimental to the survival of the Manila clam. The synergistic effect of temperature and salinity stressors may decrease the survival period of clams compared to the effect of a single stressor.

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“…Additionally, in narrow fjords such as the MC, the discharge and concentration of meltwater, controlled by physical processes such as seawater exchange, significantly impact changes in marine ecosystems (Fuentes et al., 2016; D. U. Kim, Khim, & Ahn, 2021; Sahade et al., 2015; Schloss et al., 2012). A recent study showed that low salinity and pH due to glacial melting cause abnormal amphipod behavior and may eventually threaten population persistence in MC (Park, Ahn, et al., 2020). Meltwater of glacial and terrestrial origin containing sediment particles spreads along the Marian Cove (Khim et al., 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Kim, Khim, & Ahn, 2021;Sahade et al, 2015;Schloss et al, 2012). A recent study showed that low salinity and pH due to glacial melting cause abnormal amphipod behavior and may eventually threaten population persistence in MC (Park, Ahn, et al, 2020). Meltwater of glacial and terrestrial origin containing sediment particles spreads along the Marian Cove (Khim et al, 2007).…”

mentioning

confidence: 99%

Properties and Mechanisms of Seawater Exchange in Marian Cove, King George Island, West Antarctic Peninsula

Kim,

Park

et al. 2023

JGR Oceans

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The Antarctic Peninsula is one region that has recently experienced warming substantially more rapidly than the global mean over the past 50 years. Marian Cove is located in the South Shetland Islands connected to the Bransfield Strait via Maxwell Bay between King George Island and Nelson Island. In this study, we identified properties and mechanisms of seawater exchange in Marian Cove from multiple hydrographic surveys and a single bottom‐mounted mooring installed at the entrance to Marian Cove. Regardless of the season, the mean current velocity profiles at the entrance to Marian Cove were constant because of the influence of tidal forcing. Wind was the primary force that determined the variation in surface current; in response, a countercurrent occurred near the bottom area. We estimated salt transport to understand what effects Maxwell Bay′s saline water intrusion has on the Marian Cove environment. When the daily easterly wind was at its maximum of 18.5 m s−1, the salinity could increase to 7.20 × 10−4 g kg−1 in 1 day. In addition, the average freshwater residence time in Marian Cove for the quantitative evaluation of seawater exchange was approximately 9 days. However, the freshwater residence time was reduced to less than 2 days when there were extreme easterly winds.

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Ocean freshening and acidification differentially influence mortality and behavior of the Antarctic amphipod Gondogeneia antarctica

Cited by 15 publications

References 59 publications

Response of a natural Antarctic phytoplankton assemblage to changes in temperature and salinity

Response of a natural Antarctic phytoplankton assemblage to changes in temperature and salinity

The Effects of Temperature and Salinity Stressors on the Survival, Condition and Valve Closure of the Manila Clam, Venerupis philippinarum in a Holding Facility

Properties and Mechanisms of Seawater Exchange in Marian Cove, King George Island, West Antarctic Peninsula

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