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Long-term observations are essential for ecological research, providing insights into species and ecosystem variability, processes, and responses to change. In a time of rapid global change, ecosystem modification, and emerging threats, such long-term monitoring (LTM) is increasingly important.
Ocean alkalinity enhancement is a potential strategy for gigatonne-scale atmospheric carbon dioxide removal. It uses alkaline substances to convert seawater carbon dioxide into (bi)carbonate, enabling uptake of additional carbon dioxide from the atmosphere.
During the summer of 2021, we conducted a comprehensive study on zooplankton communities along East Antarctica (55°E to 80°E) as part of the Trends in Euphausiids off Mawson, Predators, and Oceanography (TEMPO) survey program.
Oxygen isotope ratios (d18O) of foraminifera in marine sediment records have fundamentally shaped our understanding of the ice ages and global climate change. Interpretation of these records has, however, been challenging because they reflect contributions from both ocean temperature and ice volume.
The Southern Annular Mode (SAM) describes the annular or zonal component of the large-scale atmospheric circulation in the Southern Hemisphere (SH) extratropics and influences surface climate across the SH. Although this annular flow is dominant in austral summer…
Planktonic Foraminifera are unique paleo-environmental indicators through their excellent fossil record in ocean sediments. Their distribution and diversity are affected by different environmental factors including anthropogenically forced ocean and climate change. Until now…
Antarctica is often considered a pristine wilderness, however, as human occupation and activities in the region increase, it is becoming increasingly apparent that this is not the case.
1. The management of non-indigenous species is not without its complications. In Bergstromet al.’s (2009) study, we demonstrated that feral cats Felis catus on sub-Antarctic Macquarie Island were exerting top-downcontrol on the feral rabbit Oryctolagus cuniculus population…
Euphausiids are vital components of many oceanic foodwebs. Due to their large size, they are key prey … species for many vertebrates, and several species are subject to commercial fisheries. The best studied … euphausiid species is Antarctic krill (Euphausia superba)…
1. Although marine protected areas (MPAs) are often established to protect threatened top-order … predators, there is a paucity of data that can be used to evaluate their efficacy in achieving this … purpose. 2.
Paratrochammina minutissima n. sp. is described from … Abraxas and Ace Lakes in the Vestfold Hills, East … Antarctica. The species is characterized by very small size … (120 mm diameter), 4K chambers in the final whorl…
We present sea surface temperature (SST) records with centennial-scale resolution from the Bay of Plenty, north of New Zealand. Foraminiferal assemblage-based paleo-SST estimates provide a deglacial record of SST … since 16.5 14C ka. Average Holocene SSTs are 15.6C for winter and 20.3C for summer…
The microscopic anatomy of the cardio-respiratory system, digestive system, kidney, lymphatic system and integument … was investigated in the leopard seal, Hydrurga leptonyx … , by examining histological sections of tissues … collected from leopard seals in Antarctica and New South Wales, Australia.
Abstract : Well sorted, fine lithic sandstone within the Drygalski Formation at Cape Lockyer on the … southern tip of Heard Island, preserves a diverse terrestrial palynoflora as well as marine diatoms and a few … foraminifera. A combination of these elements suggests a Late Miocene age (10–5 Ma).
Between October 2001 and March 2002 six transects were completed at monthly intervals in the Sub-Antarctic Zone … (SAZ) and Inter-Sub-Antarctic Front Zone (ISAFZ)/Polar Frontal Zone (PFZ) in the Southern Ocean south of Australia.
Between November 2001 and March 2002 an Australian/Japanese collaborative study completed six passes of a transect … line in the Seasonal-Ice Zone (south of 621S) along 1401E. Zooplankton samples were collected with a NORPAC net on … 22–28 November, and a Continuous Plankton Recorder on 10…
Life beneath the Antarctic ice shelves is surprisingly abundant and diverse. This study … documents the Holocene seabed community beneath the Amery Ice Shelf, East Antarctica, based on fossil analysis of a 47 cm long sediment core. The surface samples from this core … reveals a rich modern fauna…
The Southern Ocean south of Australia is oceanographically complex, being characterized by double branches of the … Sub-Antarctic Front (SAF), Polar Front (PF) and Southern Antarctic Circumpolar Current (SACCF), in addition to the … Southern Boundary (SB) of the ACC.
The sediment record of the fauna of Ace Lake, a saline meromictic lake in the Vestfold Hills, Antarctica, consists of copepod … eggs, spermatophores and exoskeletal fragments, rotifer and tintinnid loricae, and foraminiferal and folliculinid tests. The … relative abundance of these remains…