Seiteninhalt:
5th INTERCOAST workshop 2012
Today:
19:30 – 21:30 The C V RENA Oil Spill event: fast response science and long term environmental effects
Chris Battershill (Uni Waikato)
Tuesday, 19th June 2012 at the House of Science, Kleiner Saal, (Haus der Wissenschaft); Sandstraße 4/5; Bremen City
Abstract:
The CV Rena grounded on Astrolabe Reef , Bay of Plenty, north-east New Zealand at 2:20am on the 5th of October. She was carrying 1368 containers, including 32 classified as being ‘dangerous goods’, and 1733 tonnes of heavy fuel oil. Approximately 350 tonnes of oil was lost between 5-11 October during a storm. Most of this ended up on adjacent beaches and rocky reefs including a nearby offshore Island. Successful salvage has accounted for recovery of most of the remaining oil. 649 containers have been recovered in total to date. 256 have been lost overboard so far, of which only 74 have been recovered. 3100 litres of the oil dispersant Corexit 9500 was used. This is the worst shipping incident with respect to pollution, New Zealand has experienced.
Two key questions were immediately asked by the public: what is the environmental impact and how long to recovery? In order to answer both, it was important to be in possession of quantitative ecological information of the character of relevant habitats in the region ‘before’ the event, together with information on background levels of contaminants. The Regional Council had over 20 years of shoreline monitoring data, but nothing quantitative existed for the ship wreck site, Astrolabe Reef itself or adjacent islands and offshore reef systems. A fast response environmental survey of these systems was therefore mounted in the days immediately following the grounding and before the weather broke and oil engaged with the shores. This included sampling for PAH’s and trace metal contamination. A unique situation now exists where ‘before’ and ‘after’ comparisons can be made of the environment in response to the oil spills. Rapid uptake and depuration of PAH’s was observed for most seafood species examined and most areas of the adjacent coastline are now clear of Rena oil signatures. There are however a number of ‘hotspots’ of contamination and longer term recovery is now being closely examined in terms of marine diversity/population demographics as well as physiological responses of key species of fish and shellfish.
Workshop Programme
Saturday, 16th June 2012 at Marum, seminar room 2070
| 10:45 – 10:55 | Introduction into IC aspects: Environmental Change Christian Winter (Uni Bremen) |
| 11:00 – 11:20 | Hydrodynamics and Sedimentation of Tairua Estuary Cathy Liu (Uni Waikato) |
| 11:20 – 11:40 | A regional ocean model for the Southwest Pacific Ocean region: a sensitivity analysis Nilima Natoo (Uni Bremen) |
| 11:40 – 12:00 | Morphodynamic equilibria of coastal systems Chris Daly (Uni Bremen) |
| 13:00 – 13:20 | Momentum Balance at an Ebb-Tide Delta: Flow vs Waves Shawn Harrison (Uni Waikato) |
| 13:20 – 13:40 | Estuary-shelf nutrient exchange controls on inter-annual patterns in estuarine Ulva Alex Port (Uni Waikato) |
| 13:40 – 14:00 | Magnetic minerals as markers of coastal zone evolution Firoz Badesab (Uni Bremen) |
| 14:30 – 14:50 | Sediment-fluid-interactions on a micro-scaled level Gerhard Bartzke (Uni Bremen) |
| 14:50 – 15:10 | The effects of benthic communities on sediment stability Rachel Harris (Uni Waikato) |
| 15:10 – 15:30 | Effect of Strain Rate on Marine Sands Using an In Situ Free Fall Cone Penetration Test Vigneshwaran Rajasekaran (Uni Bremen) |
Sunday, 17th June 2012 at Marum, seminar room 2070
| 10:00 – 10:45 | Keynote Speaker Fronts and vegetation dynamics in Skagit Bay Julia Mullarney (Uni Waikato) |
| 10:45 – 10:55 | Introduction into IC aspects: Development Impacts Tobias Mörz (Uni Bremen) |
| 11:00 – 11:20 | Laboratory and In-situ Geotechnical Test Ehsan Jorat (Uni Bremen) |
| 11:20 – 11:40 | Perspectives on the dispersion and entrainment of muddy sediments Bryna Flaim (Uni Bremen) |
| 11:40 – 12:00 | Bedform crest bifurcations in subaqueous bedforms Serena Fraccascia (Uni Bremen) |
| 13:00 – 13:20 | Habitat dynamics in response to constructional impacts: geology Ruggero Capperucci (Uni Bremen, Senkenberg) |
| 13:20 – 13:40 | Post-settlement dispersal experiments: adult-juvenile interactions in a flume Ruth Gutperlet (Uni Bremen, Senkenberg) |
| 13:40 – 14:00 | The impact of macrophyte mats on benthic nutrient dynamics Clarisse Niemand (Uni Waikato) |
| 14:30 – 14:50 | Site specific differences in morphometry and photophysiology in the seagrass Zostera muelleri in Tauranga Harbour Dorothea Kohlmeier (Uni Bremen) |
| 14:50 – 15:10 | The use of GIS as a tool to integrate services of coastal environments in spatial planning Alicia-Ferrer-Costa (Uni Waikato) |
Monday, 18th June 2012 at Marum, seminar room 2070
| 09:15 – 10:00 | Keynote Speaker Modelling currents on the New Zealand continental shelf: from the ocean to the coast Mark Hadfield (NIWA, Wellington, New Zealand) |
| 10:20 – 10:30 | Introduction into IC aspects: Societal aspects Till Markus (Uni Bremen) |
| 10:30 – 10:50 | Looking beyond the dredges: the consideration of alternatives in the planning and consenting of port development Lisa Marquardt (Uni Bremen) |
| 10:50 – 11:10 | International Law on Tuna Fisheries Management in the 21st Century: Is the WCPFC ready for the Challenge? Ingo Unterweger (Uni Bremen) |
| 11:10 – 11:30 | Researching about biodiversity - Completed solutions? Future Issues! Bevis Fedder (Uni Bremen) |
| 11:30 – 11:50 | Working with Nature: An ethnographiy of soft coastal protection in Aotearoa New Zealand Friederike Gesing (Uni Bremen) |
Tuesday, 19th June 2012 at Marum, seminar room 2070
| 09:15 – 10:00 | Keynote Speaker Modelling Landscape Values Lars Brabyn (Uni Waikato) |
Tuesday, 19th June 2012 at the House of Science, Kleiner Saal, (Haus der Wissenschaft); Sandstraße 4/5; Bremen City
| 19:30 – 21:30 | The C V RENA Oil Spill event: fast response science and long term environmental effects Chris Battershill (Uni Waikato) |
Thursday, 21st June 2012, Marum, seminar room 2070
| 09:15 – 10:00 | Keynote Speaker Why we need to think about ecology in a socio-ecological context Simon Thrush (NIWA, Auckland, New Zealand) |