Error message

  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Warning: A non-numeric value encountered in theme_pager() (line 329 of /homepages/18/d443224071/htdocs/includes/pager.inc).
  • Warning: A non-numeric value encountered in theme_pager() (line 335 of /homepages/18/d443224071/htdocs/includes/pager.inc).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'name' of non-object in user_node_load() (line 3697 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'picture' of non-object in user_node_load() (line 3698 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Undefined offset: 3 in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).
  • Notice: Trying to get property 'data' of non-object in user_node_load() (line 3699 of /homepages/18/d443224071/htdocs/modules/user/user.module).

Team publications

Diversity of Microcystis aeruginosa isolates (Chroococcales, Cyanobacteria) from East-African Waterbodies.

Haande S, Ballot A, Rohrlack T, Wiedner C, Fastner J and Edvardsen B. 2007.

Archives of Microbiology 188, 15-25

 

First report of anatoxin-a producing cyanobacterium Aphanizomenon issatschenkoi in northeastern Germany.

Ballot A., Fastner, J., Lentz, M., Wiedner, C. (2010).

Toxicon 56 (2010) 964–971.

Paralytic Shellfish Poisoning Toxin-Producing Cyanobacterium Aphanizomenon gracile in Northeast Germany.

Ballot, A. Fastner, J., Wiedner, C. (2010).

Appl. Environ. Microbiol. 76 (4):1173-1180.

Phytoplankton dynamics and cyanobacterial dominance in Murchison Bay of Lake Victoria (Uganda) in relation to environmental conditions.

Haande S, Rohrlack T. Semyalo RP, Brettum P, Edvardsen B, Lyche-Solheim A, Sørensen K, Larsson P. 2011.

Limnologica. 41, 20-29.

Thiol Derivatization for LC-MS Identification of Microcystins in Complex Matrices.

Miles C.O., Sandvik M., Nonga H.E., Rundberget T., Wilkins A.L., Rise F., Ballot A. (2012):

Envir. Sci. Tech. 46: 8937–8944.

Occurrence of non-cylindrospermopsin-producing Aphanizomenon ovalisporum and Anabaena bergii in Lake Kinneret (Israel).

Ballot, A., Ramm, J., Rundberget, T., Kaplan-Levy R. N., Hadas, O., Sukenik, A., Wiedner, C. (2011):

J. Plankt. Res. 33: 1736–1746

 

Analysis of Cyanobacterial Blooms, Planktothrix Cultures and European Crayfish from Lake Steinsfjorden, Norway.

Miles C.O., Sandvik M., Haande, S., Nonga H., and Ballot A. (2013): LC-MS Analysis with Thiol Derivatization to Differentiate [Dhb7]- from [Mdha7]-Microcystins.

Envir. Sci. Tech. 47: 4080–4087.

 

Diversity of cyanobacteria and cyanotoxins in Hartbeespoort Dam, South Africa.

Ballot A., Sandvik M., Rundberget T., Botha C. J., and. Miles C. O. (2013):

Marine and Freshwater Research http://dx.doi.org/10.1071/MF13153