With a population of about 2 million pairs macaroni penguins are the most abundant penguin in the HIMI region. These birds feed on mesopelagic fish and, to a lesser extent, mackerel icefish. Despite their great abundance and comparatively proximate links in the food chain to the toothfish fishery, virtually nothing is known about the foraging ecology of macaroni penguins at HIMI. This will identify which regions of the ocean Macaroni penguins use as foraging areas, and in combination with diet studies quantify the potential for competition with fisheries operations in the HIMI region. The data are stored in a csv excel file. The fields in this dataset are: Latitude Longitude Date Direction Range Speed Bearing

Metadata record for data from ASAC Project 915 and 2253 See the link below for public details on these projects. Our cetacean research is conducted on multidisciplinary cruises aimed at investigating environmental change and ecosystem effects. Our research approach now integrates broad scale acoustic monitoring with fine scale ecology experiments during annual surveys with AMLR. These data will allow us to connect fine scale variability with regional and circum-Antarctic processes, and eventually to understand how the dynamics of the Antarctic ecosystem and environmental change might affect the recovery of whale populations. The BROKE WEST multidisciplinary survey to be held in the 2005/2006 season will provide a large-scale simultaneously collected dataset within which to analyse the cetacean distribution, ecological and acoustic data. These sightings were made on Australian Antarctic Division voyages. For further information about these voyages, see the URL given below. Codes provided in the download file for voyage come in two formats: V70102 - Voyage 7 of the 2001/2002 season KK0102 - Use of the Kapitan Khlebnikov by the Australian Antarctic Division in the 2001/2002 season. The download file will include an excel spreadsheet of sightings, resightings and incidental sightings, as well as an explanatory word document. For further details on methods used, and an explanation of the types of data collected, see the above mentioned word document. These data were collected as part of ASAC projects 915 and 2253 (ASAC_915 and ASAC_2253). The fields in this dataset are: Voyage Data Logger (Logger/Wincruz) Date Time Observer Method Bearing Distance (nautical miles) Swim Direction Near Ice Species Reaction Group Size Latitude Longitude

Twenty three juvenile (8-14 months of age) southern elephant seals (Mirounga leonina L.) from Macquarie Island were tracked during 1993 and 1995. Migratory tracks and ocean areas with concentrated activity, presumed to be foraging grounds, were established from location data gathered by attached geolocation time depth recorders. The seals ranged widely (811-3258 km) and foraging activity centred on oceanographic frontal systems, especially the Antarctic Polar Front and bathymetric features such as the Campbell Plateau region. The seals spent 58.6% of their sea time within managed fishery areas while the remainder was spent on the high seas, an area of unregulated fishing. The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) areas 58.4.1, 88.2 and especially 88.1 were important and distant foraging areas for these juvenile elephant seals. From fisheries records, diet and the foraging ecology studies of the seals there appears to be little, if any, overlap or conflict between the seals and commercial fishing operations within the regulated commercial areas. However, attention is drawn to the possibility of future interactions if Southern Ocean fisheries expand or new ones commence. Furthermore... The dive duration of 16 underyearling (6-12 months old) southern elephant seals Mirounga leonina during their second trip to sea was investigated using geolocating time depth recorders. Underyearling seals had a lesser diving ability, with respect to duration and depth, than adult southern elephant seals. Individual underyearlings dived for average durations of up to 20.3 minutes and depths up to 416m compared to durations and depths of 36.9 minutes and 589m, respectively for adults. Dive duration was positively related to their body mass at departure, indicating that smaller seals were limited to shorter dive durations, perhaps as a result of their lesser aerobic capacity. All seals often exceeded their theoretical aerobic dive limit (average of 22.1 plus/minus 18.1%). The number of dives exceeding the theoretical aerobic dive limit was not related to mass, suggesting that factors other than mass, such as foraging location or prey availability, may have been responsible for the differences in diving effort. Foraging ability, indicated by the ability of the seals to follow vertically moving prey, was positively related to seal mass, indicating that small mass restricted foraging ability. The shorter dive durations of the smaller seals inferred that they had shallower dive depths in which to search for prey, thus restricting foraging ability. Although foraging ability was restricted by size, foraging success was found to be inversely related to mass, the smaller seals gaining a higher proportion of blubber than larger seals during their foraging trips. Thus, despite smaller seals being restricted to shallower depths and shorter durations, their foraging success was not affected. The fields in this dataset are: Area Perimeter ID Latitude Longitude Time Percent CCAMLR EEZ Season Seal Sex Age (months) Days at Sea Range (km) Bearing (degrees) Sea Surface Temperatures (degrees C) Foraging Areas Departure Mass (kg) At sea mass gain (kg) Rate of mass gain (kg) Survival estimates Length (m) Girth (m) Dives Divers per hour Total Time Diving % trip diving Dive Duration Surface Time Theoretical Aerobic Dive Limit Drift

Dataset of marine mammal observations made in the Southern Ocean from late 1998 to early 2000. Further information about the data are included in a word document in the download. The data are held in excel spreadsheets. The word document mentioned above lists the column headings for the excel spreadsheets. The fields in this dataset are: date time species Number of animals Distance Bearing Heading Initial Cue Behaviour Latitude Longitude Effort status Notes Wind speed Wind direction Actual wind speed Actual wind direction Sea State Cloud cover Visibility Boat speed Boat course Speed made good Course made good Temperature Wave Height Weather Depth Swell height More notes