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Oceanography

Managing living marine resources in a dynamic environment: The role of seasonal to decadal climate forecasts

Variations in climate lead to fluctuations and changes in fish stocks; they can have effects on such things as fish behaviour, distributions and growth. Because of this, fisheries management has to respond dynamically to these fluctuations. If management decisions are made primarily on past patterns, the negative impacts can be exacerbated, especially with climate change.

Biogeochemical regions of the Mediterranean Sea: an objective multidimensional and multivariate environmental approach

The study “Biogeochemical regions of the Mediterranean Sea: an objective multidimensional and multivariate environmental approach” was recently published in Progress in Oceanography with Nereus Fellow Gabriel Reygondeau (UBC) as the lead author. In the paper, a biogeochemical/ecological spatial framework was defined for ecosystems of the Mediterranean Sea.

Spatial differentiation of marine eutrophication damage indicators based on species density

“Spatial differentiation of marine eutrophication damage indicators based on species density” was recently published in Ecological Indicators, co-authored by Nereus Alumnus Miranda Jones (UNEP-WCMC) and Nereus Director of Science William Cheung. The paper looks at developing an index to assess eutrophication effects on marine ecosystems and introducing an ecosystem response indicator to nitrogen loadings to coastal waters.

Sources of uncertainties in 21st century projections of potential ocean ecosystem stressors

The ocean has provided incredible services for us — taking up 28% of carbon emissions since preindustrial levels and absorbing 93% of the Earth’s excess heat since the 1970s — but because of this, it is undergoing changes. In order to manage ocean ecosystems and resources in the future, we must begin to understand what those changes may look like using climate change impact projections.

Rethinking the Role of Salps in the Ocean

Salps, a type of gelatinous zooplankton, are often confused with jellyfish and while jellyfish research has increased drastically, salps have been ignored. The authors write that there “has been no comprehensive study on the biology or ecological impact of salps in almost 20 years”. This paper looks at four misconceptions about salps, including that salps are jellyfish, salps are rare, salps are trophic dead ends, and salps have a minor role in biogeochemical cycles.

Seasonal phytoplankton blooms in the North Atlantic linked to the overwintering strategies of copepods

“Seasonal phytoplankton blooms in the North Atlantic linked to the overwintering strategies of copepods,” co-authored by Nereus Fellow Rebecca Asch (Princeton University), was recently published in Elementa: Science of the Anthropocene. The paper looks at when and how long phytoplankton blooms occur in the North Atlantic. The authors found a correlation between spring bloom start days and the duration of the bloom, with early blooms lasting longer.