Browsing HELCOM Manuals and Guidelines by Subject "Biota abundance, biomass and diversity"
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Guidelines for monitoring Seal abundance and distribution in the HELCOM area.
(HELCOM, Helsinki, Finland, 2018)HELCOM Recommendation 27-28/2 tasks the HELCOM SEAL Expert Group to develop and coordinate monitoring programmes to, among other things, assess the abundance and distribution, and the trends ofthese parameters of the Baltic ... -
Guidelines for non-indigenous species monitoring by extended Rapid Assessment Survey (eRAS).
(HELCOM, Helsinki, Finland, 2017)The human-mediated introduction and establishment of non-indigenous species (NIS) in the marine environment are of worldwide concern. The main vectors for species introduction are maritime transport by either transport of ... -
Guidelines for the monitoring of target non-indigenous species using molecular methods.
(HELCOM, Helsinki, Finland, 2021)These guidelines describe the use of molecular methods for detection of target non-indigenous invasive species. The “target species” are those that “meet specific criteria indicating that they may impair or damage the ...