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Societal adaptation to rising sea levels requires robust projections of the Antarctic Ice Sheet's retreat, particularly due to ocean-driven basal melting of its fringing ice shelves.
Antarctic krill (Euphausia superba) are a key species in the marine Antarctic ecosystem. Food boluses, a by-product of feeding where Antarctic krill form a compact food mass within their feeding basket, were formed and rejected under laboratory conditions.
The Antarctic coastal marine region is a unique and highly complex environment, of which landfast ice and polynyas are key features, especially in the context of dense water formation. Current large-scale ocean-sea ice models used in climate studies simulate hardly any Antarctic landfast ice…
Recent studies have revealed the presence of a complex freshwater system underlying the Aurora Subglacial Basin (ASB), a region of East Antarctica that contains ?7 m of global sea level potential in ice mainly grounded below sea level. However…
The passive sinking flux of particles, termed the biological gravitational pump (BGP), is an important component of the ocean's biological carbon pump. In addition, carbon-rich particles are actively injected to depth through the diel vertical migration (DVM)…
Vertical migrations by marine organisms contribute to carbon export by consumption of surface … phytoplankton followed by defecation in the deep ocean. However, biogeochemical models lack … observational data, leading to oversimplified representation of carbon cycling by migrating organisms…
1. The likelihood that seabirds will be hooked and drowned in longline fisheries increases when baited hooks sink slowly. Fishermen target different fishing depths by setting the mainline through a line shooter, which controls the tension (or slackness) in the line.
The geographic distribution, stocks and vertical profiles of phytoplankton of the seasonal ice zone off … east Antarctica were determined during the 2005–2006 austral summer during the Baseline Research … on Oceanography, Krill and the Environment-West (BROKE-West) survey.
We compiled and reviewed 248 cases of reported vessel collisions with small cetaceans worldwide and with large … cetaceans in the Southern Hemisphere. Difficulties were encountered with the comparison of highly variable data in … terms of quality (evidence), sources…
Controlled Release Nutrient sources assist in the bioremediation of hydrocarbon spills by stimulating microbial activity. However, freeze–thaw activity might result in splitting of fertilizer pellets with the uncontrolled release of nutrients. We examined … the role of freeze…
ABSTRACT: Collisions with vessels are a well-documented conservation problem for some populations of large whales (LW) in the Northern Hemisphere. Less attention has been given to incidents in the Southern Hemisphere or to small cetaceans … (SC) worldwide…
Krill are thought to be predominantly herbivorous, but a heterotrophic diet might be crucial for … their growth and survival. To compare the influence of herbivory and carnivory on krill we conducted a nine … month feeding trial. We examined lipid composition of the hepatopancreas…
: The KErguelen : Ocean and Plateau compared Study (KEOPS) examined the origin of elevated phytoplankton biomass over the Kerguelen plateau in the Southern Ocean in mid-summer (Jan. - Feb. 2005).
The depth distributions of eight groups of phytoplankton were determined along eight north-south transects between longitudes 80„aE and 150„aE, from 63„aS to the sea ice edge or beyond.
The abundance of small faecal pellets is high in marine waters. Little is known, however, about the processes governing their production and fate in the water column. We investigated faecal pellet production and flux in relation to the phytoplankton and copepod assemblages present in Ellis Fjord…
An experiment was conducted on an autoline longline vessel to derive a sink rate, and line weighting regime, that would minimise the capture of albatrosses based on knowledge of line sink rates and albatross diving abilities. Sink rates of lines deployed into propeller turbulence…
The most difficult seabirds in the world to deter from baited hooks are white-chinned petrels, grey petrels and the shearwaters. A fundamental principle of seabird-friendly longlines is that they commence sinking immediately upon deployment and sink fast. Longlines with integrated weight…