Tolerance of copepods to short-term thermal stress caused by coastal power stations

Spatial Distribution Trend of Plankton in Sungai Pulai Estuary, the Straits of Johor, Malaysia

“…Jiang et al (2009) proved the negative effect of coastal power plant toward particularly the calanoid copepod composition and species diversity. Jiang et al (2008) also showed how thermal stress from coastal power plant could affect the temperature tolerance in marine copepods which seem to be species specific. The sensitivity towards the temperature could be related to the life history traits of the copepod species .…”

“…Both phyto-and zooplankton are influenced by the environmental factors in their distribution and assemblage (Hsieh et al 2004;Mwaluma et al 2003). The presence of ports, power plant and other similar activities in coastal areas would give effect to at least the water physic-chemical parameters such as salinity and temperature which further influence the planktons (Choi et al 2012;Jiang et al 2009Jiang et al , 2008. It is hypothesised that the water quality in areas with industrial activities will be different from those with natural habitat such as seagrass and mangroves.…”

Reduced up-regulation of gene expression in response to elevated temperatures in the mid-Atlantic population of Calanus finmarchicus

“…especially in ectothermic marine organisms where temperature acclimation can affect temperature tolerances (Jiang et al, 2008;Somero, 2005). For example, an increase in acclimation temperature may expand the thermal tolerance, as seen for several copepods including Calanus sinicus (Jiang et al, 2008), Eurytemora affinis (Bradley, 1978), Acartia tonsa, and Acartia clausi (González, 1974).…”

“…For example, an increase in acclimation temperature may expand the thermal tolerance, as seen for several copepods including Calanus sinicus (Jiang et al, 2008), Eurytemora affinis (Bradley, 1978), Acartia tonsa, and Acartia clausi (González, 1974). Therefore, acclimation to an in situ temperature of 8.5°C may explain higher tolerance to experimental temperatures (in terms of fewer genes being up-regulated) in the mid-Atlantic population of C. finmarchicus compared to the Arctic population with an in situ temperature of 0°C .…”

“…Similarly, a study on effects of temperature on respiration in C. finmarchicus showed that for individuals acclimated to 4°C and 10°C, respiration falls after 10°C and 15°C respectively (Halcrow, 1963). In addition, seasonal acclimatization in the natural environment is suggested to allow organisms to sufficiently adjust their physiological and biochemical mechanisms under gradual temperature change with the summer-captured copepods Labidocera euchaeta and Calanus finmarchicus having significantly better performance under elevated temperatures than the spring-captured ones (Halcrow, 1963;Jiang et al, 2008).…”