Interannual variability in the relationship between in situ primary productivity and somatic crustacean productivity in a temperate fjord

Suchy, Karyn D.; Dower, John F.; Varela, Diana E.; Lagunas, Marcos G.

doi:10.3354/meps11608

Cited by 14 publications

(28 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings underline the spatiotemporal complexity in the distribution of shelf zooplankton (Pinel-Alloul 1995, Folt & Burns 1999. Such complexity is likely ecologically important as it may carry over into the organization of higher trophic levels (Buttay et al 2016, Suchy et al 2016. Larval and juvenile cod, for instance, are important components of the northern Norwegian shelf ecosystem in early spring and summer (Ottersen et al 2014).…”

Section: Discussionmentioning

confidence: 74%

“…The mechanisms linking environmental variability with variability in zooplankton populations are only partly understood (Arashkevich et al 2002, Astthorsson & Gislason 2003, Walkusz et al 2009. This is unfortunate as marine zooplankton provides important trophic linking between the microalgae community and higher trophic level animals, thereby propagating new biological production (Banse 1995, Falk-Petersen et al 2000, but likely also environmental variability, to higher trophic levels (Richardson & Schoeman 2004, Buttay et al 2016, Suchy et al 2016.…”

Section: Introductionmentioning

confidence: 99%

“…On mesoscale (<10 2 km), which is more characteristic of many coastal ecosystems (Vilar et al 2003, Vogedes et al 2014, the picture is less clear. This is because mesoscale heterogeneity in food supply (Young et al 2009, Suchy et al 2016 or predation pressure (Bagøien et al 2001, Eiane et al 2002, Ohman & Hsieh 2008 generate variability in zooplankton abundance, but zooplankton distribution also depends on advection and bathymetry (Tremblay & Roff 1983, Walkusz et al 2009. In coastal waters, mesoscale spatial hetero-geneity in the zooplankton often reflects topographic steering of on-shelf and coastal current systems , Munk et al 2015, Skreslet et al 2015.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Environmental effects on zooplankton abundance on a sub-Arctic shelf off northern Norway

Eiane¹,

Espinasse²,

Espinasse³

2018

Aquat. Biol.

View full text Add to dashboard Cite

We studied the abundance of common zooplankton on 8 dates and at 5 locations on the shelf off the Lofoten Islands, northern Norway, between September 2013 and August 2014. We tested for relationships between environmental variability and abundances. We found that, of 17 zooplankton taxa or groups for which we recorded abundances, 4 omnivorous or carnivorous groups persistently differed in abundance between stations. This difference probably reflected relatively deep centres of distribution in the water column, and abundances of these species were positively associated with bottom depth. In 10 taxa or groups, abundance correlated with sampling date or temperature, salinity, or fluorescence, but generally not with bottom depth. Most of these taxa were consumers on low trophic levels, with a vertical distribution often associated with near-surface waters. In the remaining taxa or groups, no association between abundance and the environment or with time of sampling was established. Our results suggest that on-shelf abundances of zooplankton with intermediate-to-deep vertical distribution patterns are mainly limited by bathymetry, while abundance variations in zooplankton with a predominately near-surface distribution are driven by intra-annual environmental variability.

show abstract

Section: Discussionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Environmental effects on zooplankton abundance on a sub-Arctic shelf off northern Norway

Eiane¹,

Espinasse²,

Espinasse³

2018

Aquat. Biol.

View full text Add to dashboard Cite

show abstract

“…Geophysical Research Letters 10.1002/2017GL076199 decrease of total diatom abundance (Table 2) and a 50% decrease in species richness, indicating potential impacts upon the higher trophic predators (Edwards & Richardson, 2004). For example, a shift to an increased dominance of dinoflagellates would lead to nutritional quantity and quality changes due to differential essential fatty acids between diatoms and dinoflagellates (and other flagellates) (Dalsgaard et al, 2003;Miller et al, 2017;Suchy et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Phytoplankton Community Structure in 2011–2013 Compared to the Extratropical Warming Event of 2014–2015

Peterson

2018

Geophysical Research Letters

View full text Add to dashboard Cite

Coastal waters of the Northern California Current experienced “normal” ocean conditions in 2011–2012, weak upwelling in 2013–2014, then suddenly warmed in September 2014. The response of phytoplankton community structure to contrasting ocean conditions was determined from samples collected off Newport, Oregon. Cluster analysis identified three prominent phytoplankton community types: one that occurred during the upwelling season characterized by the highest abundance and diversity of diatoms, a preupwelling/relaxation community characterized by lower abundance, lowest diversity of diatoms and dinoflagellates, and another one associated with the warm anomalies from September 2014 through 2015 with reduced diatom abundance and diversity but the highest dinoflagellate diversity. The changes of diatom and dinoflagellate community were correlated with local factors (silicate, silicate: nitrate ratios, temperature, and salinity), and with the Pacific Decadal Oscillation.

show abstract

“…Based on the 1 m-binned CTD data, a stratification parameter t (kg m −3 ) was calculated as the difference in density between the surface (average of densities for the top 10 m) and 20 m (Drinkwater and Jones, 1987). A depth of 20 m was chosen for stratification parameter calculations to ensure inclusion of shallow sampling sites (bottom depth <30 m) as previous work carried out in nearby Saanich Inlet, BC showed little discrepancy in results calculated using bottom depths of 20, 50, and 100 m (Suchy et al, 2016).…”

Section: Data and Sample Analysismentioning

confidence: 99%

Harmful Algae and Oceanographic Conditions in the Strait of Georgia, Canada Based on Citizen Science Monitoring

Esenkulova¹,

Suchy

Pawlowicz

et al. 2021

Front. Mar. Sci.

View full text Add to dashboard Cite

In British Columbia (BC), harmful algal blooms (HABs) regularly cause severe economic losses through finfish mortalities and shellfish harvest closures due to toxin accumulation, gill damage, or hypoxia. As there is no routine governmental monitoring of HAB phenomena in BC, HAB variability, and its potential links to environmental drivers are not well understood. Here we present results from a well-managed citizen science program which collected an unprecedented 4 year, high-resolution (∼bi-monthly, ∼80 stations) dataset of harmful algae (HA) concentrations and corresponding physical and chemical properties of seawater throughout the Strait of Georgia (SoG), BC. Analysis of this dataset revealed statistically significant interannual and seasonal relationships between environmental drivers and the most common HA taxa: Rhizosolenia setigera, Dictyocha spp., Alexandrium spp., Heterosigma akashiwo, Chaetoceros convolutus, and C. concavicornis. HABs exhibited significant interannual variations; specifically, no HABs were found during the summer of 2015, blooms of Dictyocha occurred in 2016 and 2017, and dense blooms of Heterosigma and Noctiluca occurred in 2018. In addition, HA prevalence corresponded with negative effects observed in local aquaculture facilities where higher toxins concentrations (causing Paralytic and Diarrhetic Shellfish Poisonings) in shellfish flesh were detected during years with greater abundance of Alexandrium and Dinophysis. Furthermore, salmon mass mortality at fish farms corresponded to years with high concentrations of Heterosigma and Dictyocha. As such, these results highlight the need for long-term data to evaluate the potential role of HA as a stressor on the SoG ecosystem.

show abstract

Interannual variability in the relationship between in situ primary productivity and somatic crustacean productivity in a temperate fjord

Cited by 14 publications

References 72 publications

Environmental effects on zooplankton abundance on a sub-Arctic shelf off northern Norway

Environmental effects on zooplankton abundance on a sub-Arctic shelf off northern Norway

Phytoplankton Community Structure in 2011–2013 Compared to the Extratropical Warming Event of 2014–2015

Harmful Algae and Oceanographic Conditions in the Strait of Georgia, Canada Based on Citizen Science Monitoring

Contact Info

Product

Resources

About