assessment of environmental status (WFD) Baltic Sea types outer - - PowerPoint PPT Presentation

The German coastal benthic biological monitoring and assessment of environmental status (WFD)

Baltic Sea types – outer shallow water bodies

border of river basin border of territorial waters (12 sm)

• ligohaline inner coastal waters

mesohaline inner coastal waters mesohaline outer coastal waters meso- polyhaline outer coastal waters, seasonally stratified

border of river basin border of territorial waters (12 sm)

• ligohaline inner coastal waters

mesohaline inner coastal waters mesohaline outer coastal waters meso- polyhaline outer coastal waters, seasonally stratified

High Status: „All disturbance-sensitive macroalgae and angiosperm taxa associated with undisturbed conditions are present. The levels of macroalgal cover and angiosperm abundance are consistent with undisturbed conditions.“ metrics: perennial species (or ephemeral opportunists as antagonists) diversity aspects (where applicable and feasible) area, cover or depth limits

the normative definitions and their application in BALCOSIS

BALCOSIS assessment system of ecological quality (outer Baltic Sea coast)

• Zostera depth limit (≥10% cover)

[m]

• Fucus depth limit (≥10% cover)

[m]

• pportunists in Zostera meadows

[% biomass]

• cover of Fucus on stones (0-2 m)

[% cover]

• pportunists on stones (5-7 m)

[% biomass]

• number of selected perennial species

[n of 10]

• portion of Furcellaria on stones (5-7 m)

[% biomass]

Baltic Sea types – inner shallow water bodies

border of river basin border of territorial waters (12 sm)

• ligohaline inner coastal waters

mesohaline inner coastal waters mesohaline outer coastal waters meso- polyhaline outer coastal waters, seasonally stratified

High Status: „All disturbance-sensitive macroalgae and angiosperm taxa associated with undisturbed conditions are present. The levels of macroalgal cover and angiosperm abundance are consistent with undisturbed conditions.“ metrics: perennial species (or ephemeral opportunists as antagonists) diversity aspects (where applicable and feasible) area, cover or depth limits

the normative definitions and their application in PHYBIBCO

PHYBIBCO assessment system of ecological quality (inner Baltic Sea coast)

• Angiosperm depth limit (≥10% cover)

[m]

• Characean depth limit (≥10% cover)

[m]

• dominant macrophyte-community

[score]

Zostera mapping German Baltic Sea by GEOMAR Kiel

Methods

• Tow-camera along

line transects

• Transects ran parallel

and perpendicular to the coast

• Total length of all

transects: > 400 km

• Parameter: eelgrass

cover in 6 classes

invertebrate benthic fauna

• diversity and abundance of taxa
• all disturbance sensitive taxa present

(coastal Baltic Sea und Helgoland:) the MarBIT-Index, 4 modules:  species diversity (taxonomic spread)  Abundance (lognormal-distribution)  proportion of sensitive species  proportion of tolerant species

the normative definitions and their application in PHYBIBCO

Benthic Monitoring in the German EEZ

Habitats directive: sandbanks (3) & reefs (3 areas)

• every site: focus area (10 – 15 stations) once per period
• overview monitoring (3-4 stations) every year in all areas
• assessment („biological quality“):

sandbanks: BQI & site specific species inventory reefs: site specific species inventory & NN (under development)

• „Extent and distribution“

No task for monitoring (desk top studies)

MSFD:  mud & sand : predominant habitats (EUNIS level 2/3) – monitoring system under development  Coarse sand & gravel: special habitats – currently no monitoring planned  current draft: 3 basins 2x per period Mecklenburg Bay: mud wih Arctica Arkona basin: mud with Macoma Pomeranian Bight: sand with CMM  few HELCOM monitoring stations for interannuell variability  planned: spatial distributionb of samples  assessment: BQI (Arctica-indicator in MB)