2003-2012 Eastern Inshore Fisheries and Conservation Authority (Eastern IFCA) River Stour and Orwell Peacock Fan Worm surveys
Within the Rivers Stour and Orwell, Eastern IFCA (and its predecessor, ESFJC) first mapped the extent of the Peacock Fan Worm (Sabella pavonina) in 2003 using Roxann Acoustic Ground Discrimination System (AGDS) together with a 0.1 m squared day grab and video. Colonies were found between Holbrook Bay and Copperas Bay in the River Stour, and another colony between Levington Creek and Trimley Marshes in the River Orwell. The aim of the surveys was to monitor the condition, extent and density of the Peacock Fan Worm colonies.
dataset
EIFCASuffolkPeacockFanWorm
eng
urn:ogc:def:crs:EPSG::4326
biota
biota
revision
2008-01-06
revision
2009-11-16
1.1832
1.2192
51.9555
51.9433
creation
2009-06-18
Southern North Sea
creation
1954-01-01
North Sea
revision
2010-01-01
infralittoral
creation
2014-05-16
IVc
2015-04-07
2015-04-07
publication
2015-04-07
creation
2015-04-07
revision
2015-04-07
notPlanned
Within the River Stour and Orwell, Eastern IFCA (and its predecessor, ESFJC) first mapped the extent of the Peacock Fan Worm (Sabella pavonina) in 2003 using Roxann Acoustic Ground Discrimination System (AGDS) together with a 0.1 m squared day grab and video. Colonies were found between Holbrook Bay and Copperas Bay in the River Stour, and another colony between Levington Creek and Trimley Marshes in the River Orwell. The aim of the surveys was to monitor the condition, extent and density of the Peacock fan worm colonies. The colonies of Peacock Fan Worms present were re-surveyed in 2007, 2009 and 2010. Surveys in 2011-12 used just day grabs to determine presence of colonies compared with previous year’s data. he survey in 2012 involved stratified day grab sampling based on extent data from 2011. The total number of living Peacock fan worms found within the 0.1 m squared day grab was recorded against a scale of 0 worms = 0, 1-49 = 1 and 50 plus worms = 2. The data were then interpolated using Vertical Mapper GIS software to create distribution models of the colonies along the Rivers Stour and Orwell.
Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced. Charts are not to be used for navigation.
There are no access restrictions.
MEO Data Lead
Eastern Inshore Fisheries and Conservation Authority
originator
MEO Data Lead
Eastern Inshore Fisheries and Conservation Authority
custodian
MEO Data Lead
Eastern Inshore Fisheries and Conservation Authority
pointOfContact
2016-11-15