East-Siberian Sea: projects/activities

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Directory entires that have specified East-Siberian Sea as one of the geographic regions for the project/activity and are included in the AMAP, ENVINET, SAON and SEARCH directories. Note that the list of regions is not hierarchical, and there is no relation between regions (e.g. a record tagged with Nunavut may not be tagged with Canada). To see the full list of regions, see the regions list. To browse the catalog based on the originating country (leady party), see the list of countries.

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Displaying: 1 - 2 of 2
1. Mitigation of effects of high power sonars on marine mammals

• This proposal is to develop a reliable method for forecasting the occurrence of marine mammals based on time of year, location and oceanographic conditions. • The work will exploit components of existing NERC-funded research within the core science programmes of SMRU and SAMS. • Pre-existing data on marine mammal aggregations lead us to believe that the proposed method has a high probability of success. • The main study area will be the Sea of the Hebrides and the Minch. • Historical data on marine mammal sightings will be supported by an observational programme, including the use of acoustics and satellite and radio tags. • Simultaneous oceanographic data will be collected during the above programme, supplementing the extensive SAMS archive of time-series from this area. • A proposed operational monitoring network in the southern Minch will be adapted to add acoustic observations to the planned suite of physical and chemical sensors. • The datasets will be analysed using a variety of statistical techniques to yield a practical relationship between observables (local oceanographic conditions, season, location) and species abundance. • The validity of this relationship as an operational tool will be tested in a variety of scenarios. • The work is expected to run from the summer of 2002 to the summer of 2005.

Biological effects Fish Geophysics Marine mammals
2. The prediction of marine mammal aggregations by reference to oceanographic observables in the seas to the north and west of the Hebrides

• There is a clear need to predict the occurrence of marine mammals in order to minimise the possible harmful impact of military sonar activities, some of which have recently received extensive public media exposure. • No military or civilian method currently exists to predict the possibility of encountering marine mammals. • The proposed work will exploit components of existing NERC-funded research within the core science programmes of SAMS and SMRU to develop a predictive tool that will link marine mammal occurrence to classical oceanographic observables. • Pre-existing data on marine mammal aggregations lead us to believe that the proposed method has a high probability of success. • The main study area will be the open seas to the north and west of the Hebrides. • Existing NERC-funded SAMS cruises in this area will collect oceanographic data, supplementing remotely sensed imagery and the extensive SAMS archive of time-series from this area. • A key element in achieving the proposal objective (and in furthering NERC science objectives) will be the recruitment of SMRU observers and equipment to SAMS cruise complements so that marine mammal sightings may be linked directly to the oceanographic research programme. • Additional SMRU deployments on board vessels of opportunity will increase the density of the observational programme. • The suitability of SOSUS acoustic data as an indicator of marine mammal presence will be investigated. • The datasets will be analysed using a variety of statistical techniques to yield a practical relationship between observables (local oceanographic conditions, season, location) and species abundance. • The value of the relationship as an operational tool will be tested in a variety of scenarios. • The work is expected to run from the summer of 2002 to the summer of 2005.

Biological effects Fish Geophysics Marine mammals