Tracking summer migration of humpback whales from Sunshine Coast, Queensland to southern waters 2010/11
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Satellite tracks of humpback whales tagged off the Sunshine Coast, Queensland, Australia and tracked to Antarctic feeding grounds. Data can be found here: https://data.aad.gov.au/aadc/argos/display_campaign.cfm?campaign_id=87 Satellite tags were deployed on adult humpback whales with a modified version of the Air Rocket Transmitter System (ARTS, Restech) and a purpose-designed projectile carrier at a pressure of 7.5 – 10 bar. A custom-designed, 80mm anchor section is attached to a stainless steel cylindrical housing containing a location-only transmitter (SPOT-5 by Wildlife Computers, Redmond, Washington, USA and Kiwisat 202 Cricket by Sirtrack, Havelock North, New Zealand). This superseded anchor design resulted in the anchor section disarticulating upon deployment in order to achieve improved tag retention times while minimising impact. The tags were sterilised with ethylene oxide prior to deployment and implanted up to 290mm into the skin, blubber, interfacial layers and outer muscle mass of the whale. Tags were programmed to transmit to the Argos satellite system at various duty cycles and repetition rates for a maximum of 720 transmissions per day. These transmissions are relayed to processing centres which calculate the transmitter’s location by measuring the Doppler Effect on transmission frequency.
Australia’s east coast humpback whales: satellite tag derived movements on breeding grounds, feeding grounds and along the northern and southern migration
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Satellite tags were deployed on 48 east Australian humpback whales (breeding stock E1) in 2008, 2009 and 2010 on their southward migration, northward migration and feeding grounds in order to identify and describe migratory pathways, feeding grounds and possible calving areas. At the time, these movements were not well understood and calving grounds not clearly identified. To the best of our knowledge, this dataset details all long-term tag deployments that have occurred to date on breeding stock E1. Satellite tags were deployed on whales in the following locations: • Eden, southern NSW (Australia), October 2008: whales were tagged off Eden during their southern migration. • Evans Head, northern NSW (Australia), June and July 2009: whales were tagged off Evans Head during their northern migration. • East Antarctica, February 2010: whales were tagged on their feeding grounds within IWC Management Area V. • Sunshine Coast, QLD (Australia), October 2010: whales were tagged off the Sunshine Coast during their southern migration. The various files in the download are: Argos locations generated by tagging of East Australian (breeding stock E1) humpback whale This file contains all Argos locations generated by satellite tags deployed on humpback whales. Deployment details can be found separately (dataset title: 'Summary of satellite tag deployments on breeding stock E1 humpback whales'). Locations were calculated by Argos using a least-squares analysis. Columns are: Argos PTT: The unique satellite tag identification number. GMT: The date and time (dd/mm/yyyy hh:mm) of each Argos location in UTC. Argos location class: The location class retrieved from Argos, Argos diagnostic data. Classes are based on the type of location (Argos Doppler Shift) and the number of messages received during the satellite pass. Location classes in order of decreasing accuracy are 3, 2, 1, 0, A, B and Z (definition from Argos User's Manual V1.6.6, 2016). Longitude: The longitude of the Argos location estimate. Units: decimal degrees, WGS84 reference system. Latitude: The latitude of the Argos location estimate. Units: decimal degrees, WGS84 reference system. Speed-distance-angle filter applied to Argos locations generated by tagging of East Australian (breeding stock E1) humpback whale. This file contains all Argos locations generated by satellite tags deployed on humpback whales. Deployment details can be found separately (dataset title: 'Summary of satellite tag deployments on breeding stock E1 humpback whales'). Locations were calculated by Argos using a least-squares analysis. Additionally, this file contains a column detailing the outcome of the application of the sdafilter - an algorithm based on swimming speed, distance between successive locations, and turning angles to remove unlikely position estimates (speed of 10 ms , spike angles of 15° and 25°, spike lengths of 2500m and 5000m; Freitas et al. 2008). Freitas C, Lydersen C, Fedak M, Kovacs K (2008) A simple new algorithm for filtering marine mammal Argos locations. Marine Mammal Science 24 (2): 315‑325. Columns are: Argos PTT: The unique satellite tag identification number. GMT: The date and time (dd/mm/yyyy hh:mm) of each Argos location in UTC. Argos location class: The location class retrieved from Argos, Argos diagnostic data. Classes are based on the type of location (Argos Doppler Shift) and the number of messages received during the satellite pass. Location classes in order of decreasing accuracy are 3, 2, 1, 0, A, B and Z (definition from Argos User's Manual V1.6.6, 2016). Longitude: The longitude of the Argos location estimate. Units: decimal degrees, WGS84 reference system. Latitude: The latitude of the Argos location estimate. Units: decimal degrees, WGS84 reference system. Argosfilter outcome: The result of the Argos sdafilter - "removed" (location removed by the filter), "not" (location not removed) and "end_location" (location at the end of the track where the algorithm could not be
General distribution of humpback whales in the Estuary and Gulf of St. Lawrence
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General distribution of Humpback Whales in the Estuary and Gulf of St. Lawrence based on all identified whales from the entire MICS database (Mingan Island Cetacean Study). Additional information The MICS (Mingan Island Cetacean Study) has been collecting and compiling in a photo-identification catalogue, blue whale (and other type of whales) sightings for the western North Atlantic since 1979. Since 1987, the material and sampling protocol has been being relatively stable, neither random nor systematic. Field work is conducted abord inflatable boats. Because the whole Gulf ot St. Lawrence cannot be thoroughly studied, MCIS conducts surveys in known whale aggregation areas. The spatial effort is also weather dependent and is mainly constrained by wind direction and strength. Therefore, the study area is not homogeneously covered. Each whale observation is associated with a picture that allows individual identification based on the animal's pigmentation pattern. For more details consult the mentionned report: Gagné, J.A., Ouellet, P., Savenkoff, C., Galbraith, P.S., Bui, A.O.V. et Bourassa, M.-N. Éd. 2013. Rapport intégré de l’initiative de recherche écosystémique (IRÉ) de la région du Québec pour le projet : les espèces fourragères responsables de la présence des rorquals dans l’estuaire maritime du Saint-Laurent. Secr. can. de consult. sci. du MPO. Doc. de rech. 2013/086. vi + 181 p.
Population abundance, trend, structure and distribution of the endangered Antarctic blue whale
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This is a parent record for data collected from AAS project 4102. Project 4102 also follows on from ASAC project 2683, "Passive acoustic monitoring of antarctic marine mammals" (see the related metadata record at the provided URL). Public Summary: Half a century ago the Antarctic blue whale was perilously close to extinction. Over 350,000 were killed before the remaining few were fully protected. A decade ago this elusive and poorly understood species was estimated to be less than 5% of its pre-whaling abundance. This multi-national, circumpolar project will develop and apply powerful new techniques to survey these rare whales and gain an insight into their recovery and ecology. The project is the flagship of the Southern Ocean Research Partnership - an International Whaling Commission endorsed collaborative program.
Subset of data from the TAGS database of known age seals - Elephant Seals
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This database is a compendium of histories of known age seals (Southern elephant) from observations across the Southern Ocean but focussed on Macquarie Island, Marion Island, Heard Island, Mawson and the Vestfold Hills. At Macquarie Island 1000 seals were weighed per annum between 1993-2003 at birth and individually marked with two plastic flipper tags in the inter-digital webbing of their hind flippers. These tagged seals were weighed again at weaning, when length, girth, fat depth, and flipper measurements were made. Three weeks after weaning 2000 seals were permanently and individually marked by hot-iron branding. Recaptures and re-weighings of these known aged individuals were used to calculate growth and age-specific survival of the seals. Similar data were collected from elephant seals between 1950 and 1965 when seals were individually marked by hot-iron branding. Mark-recapture data from these cohorts were used to assess the demography of the declining population. Length and mass data were also collected for these cohorts and were used, for the first time, to assess the growth of individual seals without killing them. At Marion Island all the elephant seals have been individually marked with two plastic flipper tags in their rear flippers. Recaptures of these seals were used to compare survival at Marion and Macquarie Islands. At Heard Island, seals were branded between 1949-1953. Seal length was measured in feet and inches. Recaptures of seals were made up until 1955, and growth and age-specific survival was calculated. Survival data from Heard Island were compared with concurrent data from Macquarie Island. The database was held by the Australian Antarctic Data Centre, but was taken offline due to maintenance problems. A snapshot of the database was taken in January 2015 and stored in an access database and several csv files. This work was completed as part of ASAC project 90.
Species Distribution: Humpback Whale - Hawaii
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This dataset contains a collection of known point locations of humpback whales identified through direct human observation via shipborne and aerial surveys. This can be useful for assessing species abundance, population structure, habitat use, and behavior. This collection is aggregated from multiple data sources and survey periods listed below. Each data point contains attributes for further information about the time and source of the observation. This dataset was compiled by the Pacific Islands Ocean Observing System (PacIOOS) and may be updated in the future if additional data sources are acquired. Cascadia Research Collective (CRC) has been undertaking shipborne surveys for cetaceans in Hawaiian waters since 2000. In addition, Dr. Joseph Mobley of the Marine Mammal Research Consultants (MMRC) led aerial surveys for cetaceans in Hawaiian waters from 1993-2003.