Ecosystem responses to recent oceanographic variability in high-latitude Northern Hemisphere ecosystems

Mueter, Franz J.; Broms, Cecilie; Drinkwater, Kenneth F.; Friedland, Kevin D.; Hare, Jonathan A.; Hunt, George L.; Melle, Webjørn; Taylor, Maureen H.

doi:10.1016/j.pocean.2009.04.018

Cited by 94 publications

(64 citation statements)

References 88 publications

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“…Our results also support previous studies that have indicated that the warming of surface temperatures will result in a redistribution of fishery resources. Numerous marine populations will likely migrate to higher latitudes (Colbert 2000;Mueter et al 2009;Cheung et al 2011). Huntingfor et al (2013) detected significant spatial shifts in regions of differing SST variability, but observed less evidence of changes when the data were averaged globally.…”

Section: Effects Of Climate Change On Grey Mullet Catches and Fishingmentioning

confidence: 99%

Effects of climate variability and climate change on the fishing conditions for grey mullet (Mugil cephalus L.) in the Taiwan Strait

et al. 2014

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Grey mullet (Mugil cephalus L.) is one of the most important commercial species of fish in the coastal fisheries of Taiwan. In this study, we analyzed the long-term records of grey mullet catch per unit effort (CPUE) in the Taiwan Strait (TS) to investigate the influences of climatic indices on the annual catch of grey mullet at multiple timescales. A wavelet analysis revealed that variations in climatic indices, namely the Pacific Decadal Oscillation (PDO), the Oceanic Niño Index, and sea surface temperatures (SSTs) might have affected the abundance and migration behavior of grey mullet in the TS in winter. The CPUE of grey mullet showed significant high correspondence with the annual PDO index (R 2 =0.82, p<0.01). The results suggested that the PDO affects the migration of grey mullet, but that increases in SSTs are a more important influence on the decreased catches of grey mullet after 1980. Mean SSTs increased 1.01°C at the Chang-Yuen Rise in the TS from 1984 to 2009. The 20°C isotherms in the TS in the winter also shifted from

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Section: Effects Of Climate Change On Grey Mullet Catches and Fishingmentioning

confidence: 99%

Effects of climate variability and climate change on the fishing conditions for grey mullet (Mugil cephalus L.) in the Taiwan Strait

et al. 2014

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“…In contrast, a positive but relatively small contribution of the SST to the APP also dominated in the shelf region; its magnitude was relatively lower than the other two factors. The positive contribution of a warmer temperature to the APP was reported in Mueter et al (2009) and Brown et al (2011 in the Bering Sea. The temperature can positively and directly affect the photosynthetic activity of phytoplankton (Eppley et al, 1972), and the temperature was an indirect effect of an early sea ice retreat.…”

Section: Factors Controlling Annual Net Primary Productionmentioning

confidence: 81%

Influence of timing of sea ice retreat on phytoplankton size during marginal ice zone bloom period on the Chukchi and Bering shelves

et al. 2016

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Abstract. The size structure and biomass of a phytoplankton community during the spring bloom period can affect the energy use of higher-trophic-level organisms through the predator-prey body size relationships. The timing of the sea ice retreat (TSR) also plays a crucial role in the seasonally ice-covered marine ecosystem, because it is tightly coupled with the timing of the spring bloom. Thus, it is important to monitor the temporal and spatial distributions of a phytoplankton community size structure. Prior to this study, an ocean colour algorithm was developed to derive phytoplankton size index F L , which is defined as the ratio of chlorophyll a (chl a) derived from cells larger than 5 µm to the total chl a, using satellite remote sensing for the Chukchi and Bering shelves. Using this method, we analysed the pixel-bypixel relationships between F L during the marginal ice zone (MIZ) bloom period and TSR over the period of 1998-2013. The influences of the TSR on the sea surface temperature (SST) and changes in ocean heat content ( OHC) during the MIZ bloom period were also investigated. A significant negative relationship between F L and the TSR was widely found in the shelf region during the MIZ bloom season. However, we found a significant positive (negative) relationship between the SST ( OHC) and TSR. Specifically, an earlier sea ice retreat was associated with the dominance of larger phytoplankton during a colder and weakly stratified MIZ bloom season, suggesting that the duration of the nitrate supply, which is important for the growth of large-sized phytoplankton in this region (i.e. diatoms), can change according to the TSR. In addition, under-ice phytoplankton blooms are likely to occur in years with late ice retreat, because sufficient light for phytoplankton growth can pass through the ice and penetrate into the water columns as a result of an increase in solar radiation toward the summer solstice. Moreover, we found that both the length of the ice-free season and the annual median of F L positively correlated with the annual net primary production (APP). Thus, both the phytoplankton community composition and growing season are important for the APP in the study area. Our findings showed a quantitative relationship between the interannual variability of F L , the TSR, and the APP, which suggested that satellite remote sensing of the phytoplankton community size structure is suitable to document the impact of a recent rapid sea ice loss on the ecosystem of the study region.

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“…After the collapse of the spring bloom, due to zooplankton predation and nutrient exhaustion, the summer production continues at much lower level primarily caused by regenerated production. Annual net primary production (NPP) ranges from about 500 g C year −1 in coastal regions to about 150 g C year −1 in the highest latitudes of the North Atlantic (Mueter et al, 2009). The southern and warmest part of the biome seems to have the highest primary production (Mueter et al, 2009).…”

Section: Ecosystem Attributesmentioning

confidence: 99%

“…Annual net primary production (NPP) ranges from about 500 g C year −1 in coastal regions to about 150 g C year −1 in the highest latitudes of the North Atlantic (Mueter et al, 2009). The southern and warmest part of the biome seems to have the highest primary production (Mueter et al, 2009). In the open-ocean, the system is dominated by diatoms in the initial phase of the spring bloom exhausting the silicate from the photic zone.…”

Section: Ecosystem Attributesmentioning

confidence: 99%

“…For example, increased winter wind mixing during positive AMO modes increased phytoplankton production in the Mid-Atlantic Bight (Schofield et al, 2008). At higher latitudes of the North Atlantic, i.e., the Gulf of Maine, the Norwegian Sea, and the Barents Sea, increased temperature has been shown to increase the phytoplankton production (Mueter et al, 2009). It is, however, unclear to what extent such correlations are mechanistically caused by the temperature itself or by a combination with other climate variables.…”

Section: Climate Variability Of the North Atlantic Oceanmentioning

confidence: 99%

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The North Atlantic Spring-Bloom System—Where the Changing Climate Meets the Winter Dark

2016

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The North Atlantic with its spring-bloom ecosystem has its particular responses to climate change, many of them different from the other parts of the world's oceans. The system is strongly influenced by anthropogenic climate change as well as to strong decadal to multidecadal natural climate variability. In particular, the northernmost part of the system and the Arctic is exposed to higher increase in temperature than any other ocean region. The most pronounced examples of poleward migration of marine species are found in the North Atlantic, and comprise the recent warming phase after the 1970s. The latitudinal asymmetric position of the Arctic Front and its nature of change result in a considerably larger migration distance and migration speed of species in the Northeast Atlantic part of the system. However, we here hypothesize that there is a limit to the future extent of poleward migration of species constrained by the latitudinal region adjacent the Polar Circle. We define this region the critical latitudes. This is because the seasonal light cycle at high latitudes sets particular demands on the life cycle of planktivorous species. Presently, boreal planktivorous species at high latitudes deposit lipids during the short spring bloom period and overwinter when phytoplankton production is insufficient for feeding. Unless invading temperate species from farther south are able to adapt by developing a similar life cycle future poleward migration of such species will be unlikely.

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Ecosystem responses to recent oceanographic variability in high-latitude Northern Hemisphere ecosystems

Cited by 94 publications

References 88 publications

Effects of climate variability and climate change on the fishing conditions for grey mullet (Mugil cephalus L.) in the Taiwan Strait

Effects of climate variability and climate change on the fishing conditions for grey mullet (Mugil cephalus L.) in the Taiwan Strait

Influence of timing of sea ice retreat on phytoplankton size during marginal ice zone bloom period on the Chukchi and Bering shelves

The North Atlantic Spring-Bloom System—Where the Changing Climate Meets the Winter Dark

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