From 1 - 10 / 60
  • The Challenger Scallop Enhancement Company Ltd. (CSEC) conducts an annual stratified survey for scallops (Pecten novaezelandiae) and dredge oysters (Ostrea chilensis) in the Challenger fishery area (Golden Bay, Tasman Bay and the Marlborough Sounds). Sampling frequency: annual (Apr/May/Jun). Surveys began in 1994 and are ongoing. The nmber of sites varies depending on survey year. Three regions: 3 to 34 strata per region. Overall, between 150 and 526 dredge tows (stations) were completed per survey. The total number of samples is 6356. Extent of site: dredged area (per station) varies from 379m2 to 3960m2. Depth of sampling: 5-71 m (chart datum). Number of replicates: 1 to 70 stations per stratum. Measured variables: Scallops (counts, weights, size frequency subsample), dredge oysters (counts, weights), bycatch (counts, weights: type of data varies depending on survey year). Environmental (depth, windforce, tow geographic position, tow time, dredge fullness). Sampling protocol & QA: Sampling protocol and initial QA set by NIWA, survey conducted by industry (CSEC).

  • Categories  

    A closed depression formation forming a closed loop and representing an area of lower ground of less than the vertical interval. Data Dictionary for depform_edge: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-depform_edge This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

  • Categories  

    Polygon for each Topo50 map sheet in the Ross Dependency, Antarctic holding extents of each sheet, it's sheet code, name, edition, and revision statement. This is the same information that is printed on each ANTTopo50 map.

  • Categories  

    a conveyor system in which carrier units run on wire or rope cables strung between supports for transporting skiers up the slope - the skier remains in contact with the ground whilst being towed up the slope Data Dictionary for ski_tow_cl: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-ski_tow_cl This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

  • Categories  

    A hole, or funnel shaped cavity made in the earth by the action of water on the soil, rock or underlying strata Data Dictionary for sinkhole_pnt: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-sinkhole_pnt This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

  • Categories  

    An isolated rock or rock formation between high and low tides. Data Dictionary for rock_pnt: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-rock_pnt This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

  • Categories  

    A region of permanent snow. Data Dictionary for snow_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-snow_poly This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

  • Categories  

    A high, steep or overhanging face or rock. Can be rock. Data Dictionary for cliff_edge: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-cliff_edge This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

  • Categories  

    An accumulation of boulders, stones or other debris carried and deposited by a glacier. Data Dictionary for moraine_poly: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-moraine_poly This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.

  • Categories  

    Low point or opening between hills or mountains Data Dictionary for saddle_pnt: http://apps.linz.govt.nz/topo-data-dictionary/index.aspx?page=class-saddle_pnt This layer is a component of the Ant50 map series. This is the topographic mapping carried out at 1:50,000 scale by LINZ within the Ross Dependency, Antarctica.