Deep-sea & Extreme Environments, Patterns of Species and Ecosystem Time Series

DEEPSETS

Completed: May 2005 - December 2008

<b>Objectives:</b>
<ol>
<li> To determine the major faunal changes that have taken place at a time series station on the Porcupine Abyssal Plain (PAP) over a 19-year period (1989 to 2008).
<li>To determine the major faunal changes that have taken place in the abyssal Eastern Mediterranean over a sampling period of 17 years (1989 to 2006) and to distinguish between spatial and temporal change, where possible.
<li>To determine the major faunal changes that have taken place at the Lucky Strike hydrothermal vent field over a 10-year period (1996 to 2006).
<li>To determine the major faunal changes that have taken place at the Haakon Mosby Mud Volcano (HMMV) and Hausgarten chemosynthetic communities over an 8-year period (1999 to 2007).
<li>To determine the major faunal changes that have taken place at a time series station in the La Ciotat 3PP Cave over a 14-year period (1992 to 2006).
<li>To integrate research on time series observations in deep-sea seabed ecosystems.
</li></ol>

<b>Description of work - tasks:</b>
<ol>
<li>Identify the 10 to 15 dominant nematode, copepod and polychaete species in the PAP time series between 1989 and 2004, and in new samples as they become available.
<li>Collate and integrate data for all size classes (meiofauna to megafauna) and all taxa from the PAP time series and determine temporal change in species dominance.
<li>Identify the 10 to 15 dominant nematode, copepod and polychaetes species in the Eastern Mediterranean time series between 1989 and 2004, and in new samples in 2006.
<li>Collate and integrate data for all size classes, assess temporal change in the Eastern Mediterranean and compare with the PAP.
<li>Document and process newly discovered species from the Lucky Strike hydrothermal vent field.
<li>Characterise species at Lucky Strike using molecular and morphological approaches to taxonomy.
<li>Collate data and identify key species and changes in time at Lucky Strike by data mining through the IFREMER BIOCEAN database.
<li>Analyse video/photographic images at Lucky Strike from seven submersible cruises
<li>Identify and document dominant meiofaunal and macrofaunal species in the HMMV and Hausgarten chemosynthetic communities
<li>Characterise species at HMMV and Hausgarten using molecular and morphological approaches.
<li>Collate data on dominant species in all size classes in a database at HMMV and Hausgarten, and analyse temporal changes
<li>Identify the 10 to 15 dominant nematode, copepod and polychaete species in the cave time series.
<li>Characterise new cave species in all taxa using molecular and morphological approaches.
<li>Collate and integrate data for all size classes of cave fauna and study variation with time.
<li>Integrate research on time series observations
</li></ol>

People Involved