Characterising meso-marine ecosystems of the North Pacific

Batten, Sonia D.; Hyrenbach, K. David; Sydeman, William J.; Morgan, Kelly; Henry, Michael F.; Yen, Peggy; Welch, David W.

doi:10.1016/j.dsr2.2006.01.004

Cited by 26 publications

(16 citation statements)

References 36 publications

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“…As samples between the two regions were collected along the Aleutian Archipelago, we did not analyze them to avoid the possible influence of coastal environmental signals on zooplankton composition (Batten et al. ).…”

Section: Methodsmentioning

confidence: 99%

“…The North Pacific Continuous Plankton Recorder (CPR) survey has conducted longitudinal transect surveys since 2000 over the subarctic North Pacific; the survey area covers the regions of the Gulf of Alaska, Western Subarctic Gyre, and Oyashio (Batten et al. ). Despite the east–west contrast in environments, copepod species composition is roughly similar in the oceanic domain of these regions (Mackas and Tsuda ).…”

Section: Introductionmentioning

confidence: 99%

“…Long-term ecosystem change studies in the North Pacific have revealed an east-west contrast in lower trophic-level responses to environmental variability, controlled by decadal climate dynamics, such as the Pacific Decadal Oscillation (PDO) (Di Lorenzo et al 2014). The North Pacific Continuous Plankton Recorder (CPR) survey has conducted longitudinal transect surveys since 2000 over the subarctic North Pacific; the survey area covers the regions of the Gulf of Alaska, Western Subarctic Gyre, and Oyashio (Batten et al 2006). Despite the east-west contrast in environments, copepod species composition is roughly similar in the oceanic domain of these regions (Mackas and Tsuda 1999).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Temperature and zooplankton size structure: climate control and basin‐scale comparison in the North Pacific

Chiba

Batten²,

Yoshiki

et al. 2015

Ecology and Evolution

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The global distribution of zooplankton community structure is known to follow latitudinal temperature gradients: larger species in cooler, higher latitudinal regions. However, interspecific relationships between temperature and size in zooplankton communities have not been fully examined in terms of temporal variation. To re-examine the relationship on a temporal scale and the effects of climate control thereon, we investigated the variation in copepod size structure in the eastern and western subarctic North Pacific in 2000–2011. This report presents the first basin-scale comparison of zooplankton community changes in the North Pacific based on a fully standardized data set obtained from the Continuous Plankton Recorder (CPR) survey. We found an increase in copepod community size (CCS) after 2006–2007 in the both regions because of the increased dominance of large cold-water species. Sea surface temperature varied in an east–west dipole manner, showing the typical Pacific Decadal Oscillation pattern: cooling in the east and warming in the west after 2006–2007. The observed positive correlation between CCS and sea surface temperature in the western North Pacific was inconsistent with the conventional interspecific temperature–size relationship. We explained this discrepancy by the geographical shift of the upper boundary of the thermal niche, the 9°C isotherm, of large cold-water species. In the eastern North Pacific, the boundary stretched northeast, to cover a large part of the sampling area after 2006–2007. In contrast, in the western North Pacific, the isotherm location hardly changed and the sampling area remained within its thermal niche throughout the study period, despite the warming that occurred. Our study suggests that while a climate-induced basin-scale cool–warm cycle can alter copepod community size and might subsequently impact the functions of the marine ecosystem in the North Pacific, the interspecific temperature–size relationship is not invariant and that understanding region-specific processes linking climate and ecosystem is indispensable.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Temperature and zooplankton size structure: climate control and basin‐scale comparison in the North Pacific

Chiba

Batten²,

Yoshiki

et al. 2015

Ecology and Evolution

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“…Regional differences in abundance, population structure, body size and lipid accumulation at epipelagic depths (0-200 m) have been examined (Dagg 1991, Tsuda et al 2001, Batten et al 2003, 2006, Kobari et al 2003b). Few studies, however, have examined down to deep sea depths (>200 m).…”

Section: Introductionmentioning

confidence: 99%

East-west differences in population structure and vertical distribution of copepods along 47^|^deg;N in the subarctic Pacific in June 2009

Yamaguchi

Homma

Saito

et al. 2013

Plankton Benthos Res

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Stratified zooplankton sampling was conducted in the subarctic Pacific in June 2009 at four stations along 47°N from 0 to 3,000 m depth to evaluate longitudinal changes in population structure and vertical distribution of the dominant copepod species. At the westernmost station (160°E), the population structure of Eucalanus bungii and Metridia pacifica was dominated by early copepodid stages. In E. bungii, nauplii were abundant and adult females had developed ovaries at 160°E, while at the three stations to the east (167°E, 174°E and 179°W), no E. bungii nauplii were collected, and the resting stages were dominant. This suggests the species was reproducing near 160°E and in diapause in the east. In all three Neocalanus species analyzed (N. cristatus, N. flemingeri and N. plumchrus), late copepodid stages were dominant at the eastern three stations. Lipid accumulation in the fifth copepodid stage of Neocalanus spp. was greater in the west than in the east. This probably resulted from better food conditions and lower temperatures in the west, where copepods could consume more food during development than in the east.

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“…To this end, CPR transects have begun in the Northern Pacific (Batten et al 2006) and, after the initial work by Sir Alistair Hardy in Antarctic waters (Hardy 1936), surveys are now conducted by ships traveling in the Southern Hemisphere toward continental Antarctica .…”

Section: Introductionmentioning

confidence: 99%

Desalination plants as plankton sampling devices in temporal studies: proof‐of‐concept and suggestions for the future

Sewell¹,

Jury²

2009

Limnology & Ocean Methods

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Long-term records of zooplankton distribution and abundance are increasingly being used as indicators of climate change. The North Atlantic, because of the 80 years of Continuous Plankton Recorder (CPR) surveys, is well-represented with such time series. However, there are few long-term data sets from the Pacific Ocean and especially from Antarctica, where traditional plankton sampling is logistically challenging. Here we test an alternative sampling method, the primary filter (PF) of the Scott Base reverse-osmosis (RO) desalination plant, which had the same mesh size (100 µm) as our standard plankton tows. We show, by qualitative comparison to fresh plankton samples collected with a plankton net, that the PF collects a representative zooplankton community, does not damage delicate or fragile forms (e.g., appendicularians, ctenophores, medusae, chaetognaths, pteropods, polychaetes, embryos with intact fertilization membranes, pilidia, bipinnaria), and that the large volumes of seawater filtered allow collection of rare meroplankton members. We further show that seasonal changes can be detected in the zooplankton when PF samples are fixed in formalin for later analysis. Desalination plant PFs may provide an innovative solution to study temporal patterns in the Antarctic zooplankton and have the potential to provide long-term data sets from other poorly sampled regions.

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Characterising meso-marine ecosystems of the North Pacific

Cited by 26 publications

References 36 publications

Temperature and zooplankton size structure: climate control and basin‐scale comparison in the North Pacific

Temperature and zooplankton size structure: climate control and basin‐scale comparison in the North Pacific

East-west differences in population structure and vertical distribution of copepods along 47^|^deg;N in the subarctic Pacific in June 2009

Desalination plants as plankton sampling devices in temporal studies: proof‐of‐concept and suggestions for the future

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