Tags » Zooplankton

By the wind sailors (Vellela vellela) at Witty's

While F block was getting ready to do their transect study at Witty’s Lagoon – Tower Point yesterday, Mara found the first of many ‘by the wind sailors’ ( 85 more words

Marine Organisms

Ocean acidification affects the phyto-zoo plankton trophic transfer efficiency

The critical role played by copepods in ocean ecology and biogeochemistry warrants an understanding of how these animals may respond to ocean acidification (OA). Whilst an appreciation of the potential direct effects of OA, due to elevated pCO2, on copepods is improving, little is known about the indirect impacts acting via bottom-up (food quality) effects. 212 more words


Pteropods on the edge: cumulative effects of ocean acidification, warming, and deoxygenation

We review the state of knowledge of the individual and community responses of euthecosome (shelled) pteropods in the context of global environmental change. In particular, we focus on their responses to ocean acidification, in combination with ocean warming and ocean deoxygenation, as inferred from a growing body of empirical literature, and their relatively nascent place in ecosystem-scale models. 94 more words


Lethal and sub-lethal effects of elevated CO2 concentrations on marine benthic invertebrates and fish

Concern about leakage of carbon dioxide (CO2) from deep-sea storage in geological reservoirs is increasing because of its possible adverse effects on marine organisms locally or at nearby coastal areas both in sediment and water column. 268 more words


Water quality criteria for an acidifying ocean: Challenges and opportunities for improvement

Acidification has sparked discussion about whether regulatory agencies should place coastal waters on the Clean Water Act 303(d) impaired water bodies list. Here we describe scientific challenges in assessing impairment with existing data, exploring use of both pH and biological criteria. 246 more words


Pteropod shell dissolution as an indicator of ocean acidification across different upwelling regimes

Ocean acidification (OA) is a consequence of human activities that is threatening marine species and ecosystems around the world. The rate and scale of changes in marine chemistry is unprecedented in human history. 152 more words


Microplastics in the marine environment. A threat to marine biota?

Microplastics in marine environments are an emerging environmental problem of international concern. This review focuses on the sources, quantities and effects of microplastics, to assess whether or not they pose a threat to marine biota. 203 more words