The number of Fur and Elephant seals around the base on Signy Island have been counted daily between January and March since 1992. Details of the area counted are given in the 1992 Seal Mammal report (AD6/2H/1992/NM3).

During several austral summers covering a 13 year period, we collected a random sample of body feathers from chicks of 11 sympatric species of Procellariiform (wandering albatross Diomedea exulans -79 individuals in total-, black-browed albatross Thalassarche melanophris - 51-, grey-headed albatross T. chrysostoma - 58 -, light-mantled sooty albatross Phoebetria palpebrata - 34 -, northern giant petrel Macronectes halli - 59 -, southern giant petrel M. giganteus - 60 -, white-chinned petrel Procellaria aequinoctialis - 39 -, blue petrel Halobaena caerulea - 19 - , Antarctic prion Pachyptila desolata - 19 -, South Georgian diving petrel Pelecanoides georgicus - 2 - and common diving petrel P. urinatrix - 6 -) to analyse Delta15N and Delta13C.

The total number of seals on Signy Island is counted in February each year. The island is divided into 6 areas, sub-divided into 105 zones and the number of Antarctic Fur seals, Elephant seals, Weddell seals and other seal species in each zone is counted typically over a two day period. For Fur seals the number of pups, white seals and entangled seals are also recorded. The first recorded count was conducted in 1974 and counts have been done annually since 1985.

Global Positioning System (GPS Pathrack) data loggers were attached to breeding northern rockhopper penguins during incubation, guard and creche stages between September to December 2016 on Nightingale (37 deg 25''S, 12 deg 28''W; 4 km2) and Inaccessible (37 deg 17''S, 12 deg 40''W; 14 km2) islands. Tracking data successfully augmented and complement existing data sets for the species breeding in the South Atlantic, which enable us to systematically identify areas of particular relevance for this species and thus to help determining whether there is a need to improve marine spatial planning in form of e.g. Marine Protected Areas in the island''s EEZ. There are two data types for each penguin a) the unprocessed raw and b) the processed GPS data (details below). All files are in the CSV format. Data were collected as part of the Darwin Plus funded Project Pinnamin, 2016 - 2018.

Three hundred adult northern rockhopper penguins, Eudyptes moseleyi, and 100 chicks were implanted with PIT tags in the breeding season 2016/17, and 130 adults in 2017/18 on Nightingale (37 deg 25''S, 12 deg 28''W). To monitor annual survival two automated PIT readers were installed on each of the main pathways penguins use to commute between the sea and their colonies. There are two files comprising a) the list of PIT tags implanted and b) the reader crossings during from September 2016 to January 2018. Data were collected as part of the Darwin Plus funded Project Pinnamin, 2016 - 2018.

In 2016, 100 northern Rockhopper penguin nests were marked in the main colony on Nightingale Island (37.254 deg S, 12.2832 deg W) and an additional 50 nests in a small satellite colony (37.252 deg S, 12.2833 deg W). Nests were followed from egg-laying to the creching stage to monitor breeding success and to investigate the impact of colony size as one of the possible drivers of breeding success. Data were collected as part of the Darwin Plus funded Project Pinnamin, 2016 - 2018.

Temperature depth devices (TDR) were attached to northern rockhopper penguins breeding on Nightingale (37 deg 25''S, 12 deg 28''W) to investigate temporal differences in diving behaviour throughout the species'' breeding cycle. The data sets comprise the unprocessed pressure and temperature data for each bird in .csv format. Data were collected as part of the Darwin Plus funded Project Pinnamin, 2016 - 2018.

Geolocators (GLS) were attached to northern rockhopper penguins breeding on Nightingale Island (37 deg 25 S, 12 deg 28 W: 4 km2) with the aim to study the species'' dispersal in the inter-breeding period, 2017. This data successfully augmented and complemented existing datasets for the species breeding on Nightingale Island and enhanced our understanding of the species'' distribution at sea throughout their annual cycle. There are four different data types for each penguin a) the unprocessed light sensor data, b) the unprocessed activity (wet/dry) data, c) the unprocessed temperature data and d) the estimated positions using the BAStag and SGAT packages in R. Data were collected as part of the Darwin Plus funded Project Pinnamin, 2016 - 2018.