Lower depth limit of macrophyte species - HELCOM II 2-2014 joint/Documents... · Lower depth limit...

HELCOM CORESET II, 2nd Workshop 29.–30.09.2014 Gothenburg HELCOM CORESET II, 2nd Workshop 29.–30.09.2014 Gothenburg

Lower depth limit of macrophyte species

Mats Blomqvist TM (SE), Samuli Korpinen TM (FI), Nick Kovaltchouk TM (RU), Georg Martin TM (EE), Kaire Torn

(EE), Karin Fürhaupter TML (DE)

HELCOM CORESET II, 2nd Workshop 29.–30.09.2014 Gothenburg


Scientific background • nutrient enrichment enhances phytoplankton and ephemeral algae

growth reducing light availability at the bottom • reduction of light availability is documented for various marine

regions and identified as main cause of the decline in the vertical distribution of characteristic vegetation communities

• macrophyte species differ in light requirements = in their sensitivity to light reduction (differences between hard and soft bottom macrophytes) but also other pressures are relevant

• vegetation communities and their characteristic species vary in terms of substrate conditions (soft bottom/hard bottom) and along the salinity gradient set of macrophyte species in focus need to be sensitive to light reduction, widely distributed within the Baltic Sea



Stage of development Indicator type

Pre-core State

Primary importance Secondary importance

BSAP

Segment and Objective

Thriving and balanced communities of

plants and animals

none stated

MSFD

Descriptors and Criteria

1.6. Habitat condition (1.6.1 Condition of

typical species/communities)

1.4 Habitat distribution (1.4.1 Distributional

pattern)

1.5 Habitat extent (area, only a proxy)

4.3 Abundance/distribution of key trophic

groups and species (habitat defining species)

6.1 Substrate characteristics (6.1.1 Biogenic

substrate)

Other relevant legislation: (e.g. WFD) Ecological status indicator/metric in five HELCOM countries

Legislative linkage:



Concept/ design

Coordinated monitoring Assessment

Research needs for operationalization (in

relation to needs stated under the

coordinated monitoring and

assessment columns)

Data arrangements

Monitoring strategy (method, frequency, spatial resolution) in relation to relevant indicator parameters

Technical guidelines Geographic scale

Assessment method

GES / assessment criteria (currently all GES are provisional)

A ) in place B) under development C ) not available, what needs - action level?

A ) monitoring in place B ) monitoring needs revision C ) monitoring not available, what needs - action level?

A ) in place B ) needs revision, what needs doing C ) not available, what needs - action level?

HELCOM assessment units: A ) identified B) Identified not described C) not identified, what needs - action level?

A ) available and described B ) available not described C ) not available, what needs - action level?

A ) proposed and described B ) proposed but needs more supporting data C ) not available, what needs - action level?

A ) in place B ) needs revision, what needs doing C ) not available, what needs - action level?

A A – for some species and countries

B – quality assurance is needed – TM, MONAS

B (A) – identified but not clear if applicable to all units

A – if identical to WFD assessment

A – for some species in some units

Depth limit data in certain assessment units, background data (nutrients), modelling of historical depth limits by nutrient or other pressure proxies

C – data submission arrangements to be incorporated into the indicator TM, HELCOM

B – for some species and countries

B – for some species in some units

C – for some species in some countries, financial issues, CP

C – for some species in some units – TM, CP

B –

(action level = who needs to complete the task)



GES

species and water type specific reference GES as deviation of the reference

Problems

• nationally depth limits as WFD metric GES at the moment identical to the good/moderate boundary (approach may differ between countries, only two country intercalibration)

• are there species and type specific references for all assessment units (WFD experience: NO)

• can we adopt references to certain units by using nutrient data or other pressure data as proxy?



• HELCOM Assessment Unit Level: 4 (water types and bodies)

• The indicator is applicable in: all coastal areas around the Baltic Sea, but sufficient natural depth range of soft and hard substrate and macrophyte stands is needed

• Currently data is available : species and unit specific for DE, DK, EE, LT, LV, FI, SE, (RU) (but no HELCOM data base)



List of issues that still need

to be solved for the

indicator

Describe what is hindering solving the issue

Pressure-relationship Does the end value need to have a significant pressure-relationship or is it sufficient to

prove that for some species or groups

Identifying assessment units, where

the indicator is not applicable

Data on distribution and usable monitoring areas (sufficient natural depth range of

substrate) for different species (especially for countries not regularly part of the group).

Combination rule for different species species sensitivity to light reduction, siltation enough data to develop a combination

rule based on that topic

GES value some countries with operational depth limits (good/moderate boundary), some countries

are developing boundaries, some countries change “fixed” boundaries what happens if

national GES differs from HELCOM GES?

Quality assurance Monitoring methods are similar between countries but slight changes can cause relevant

variations in the depth limit value (water level corrections, cover degree as depth limit,

towed or drop down video, diver experience and training)



Spermatophyte depth limit (species independent) – high pressure gradient

Eelgrass depth limit – lower pressure gradient

Seegrastiefe [m] = 5,3308-0,0617*x; 0,95 Konf.Int.

AUS06

AUS09

BUE06

FAL08

FAL11

ALT07

KAR06KAR07

KAR08

KAR11

LAN07

NOE07

SUR07

WAL06

WAL08

WAL09WAL11

BUR06

BUR09

BUR11

SSE07

SSE08SSE09SSE11

GEL06

GEL08GEL11

GRO06

GRO08

GRO09

GRO11

HAF06

HAF08HAF09

HAF11BEH09

BEH11

LAB06

GLO06

GLO08GLO09

THI06

THI07THI08THI09

THI10

ZIN06

ZIN09

KLU06

KLU08

HW-1_04SH-1_04HV-1_05

KB-2_05

SH-1_05

ST-1_05ST-2_05ST-4_05VI-1_05WB-1_05

EGG-1_07

KB-2_07ST-1_07

VI-1_07

ZIC-1_07

DW-1_08

EGG-1_08

GST-1_08

KB-1_08ST-1_08

VI-1_08

WAF-1_08

ZIC-1_08

DW-1_09

EGG-1_09

KB-1_09PAR-1_09RAS-1_09

ST-1_09

VI-1_09

WB-1_09

ZIC-1_09

BRE-1_10

DW-1_10

EGG-1_10

HW-1_10

KB-1_10VI-1_10

ZIC-1_10

EGG-1_11

KB-1_11

RAS-1_11

WB-1_11

BRE-1_12

DW-1_12

EGG-1_12

EGG-2_12

HW-1_12

PRO-1_12

VI-1_12

WRE-1_12

FL-2_05

HEI-1_06

HEI-1_08SCH-9_08

HEI-1_09

HEI-1_10

HEI-1_11

PÖW-1_11

HEI-1_12

10 20 30 40 50 60 70 80 90

TN [µmol-l]

1

2

3

4

5

6

7

8

Se

eg

rastie

fe [m

]

AUS06

AUS09

BUE06

FAL08

FAL11

ALT07

KAR06KAR07

KAR08

KAR11

LAN07

NOE07

SUR07

WAL06

WAL08

WAL09WAL11

BUR06

BUR09

BUR11

SSE07

SSE08SSE09SSE11

GEL06

GEL08GEL11

GRO06

GRO08

GRO09

GRO11

HAF06

HAF08HAF09

HAF11BEH09

BEH11

LAB06

GLO06

GLO08GLO09

THI06

THI07THI08THI09

THI10

ZIN06

ZIN09

KLU06

KLU08

HW-1_04SH-1_04HV-1_05

KB-2_05

SH-1_05

ST-1_05ST-2_05ST-4_05VI-1_05WB-1_05

EGG-1_07

KB-2_07ST-1_07

VI-1_07

ZIC-1_07

DW-1_08

EGG-1_08

GST-1_08

KB-1_08ST-1_08

VI-1_08

WAF-1_08

ZIC-1_08

DW-1_09

EGG-1_09

KB-1_09PAR-1_09RAS-1_09

ST-1_09

VI-1_09

WB-1_09

ZIC-1_09

BRE-1_10

DW-1_10

EGG-1_10

HW-1_10

KB-1_10VI-1_10

ZIC-1_10

EGG-1_11

KB-1_11

RAS-1_11

WB-1_11

BRE-1_12

DW-1_12

EGG-1_12

EGG-2_12

HW-1_12

PRO-1_12

VI-1_12

WRE-1_12

FL-2_05

HEI-1_06

HEI-1_08SCH-9_08

HEI-1_09

HEI-1_10

HEI-1_11

PÖW-1_11

HEI-1_12

r = -0,771145; p = 0,000000; r2 = 0,594665

depth limit [m] = 4,7203-0,0303*x; 0,95 Konf.Int.

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280

TN [µmol-l]

1

2

3

4

5

6

7

8

de

pth

lim

it [m

]

r = -0.807855; p = 0.0000; r2 = 0.652630

Create PDF files without this message by purchasing novaPDF printer ( http://www.novapdf.com)



Charophyte depth limit (Chara baltica, Chara aspera) – shading

Fucus depth limit – lower pressure gradient

Fucustiefe [m] = 5,9218-0,2199*x; 0,95 Konf.Int.

AUS06BUE06BUE08

BUE11

BOO06

BOO07

BOO08BOO09

BOO11

WAL06

WAL09

WAL11

STR08

STR09

STR11WIN07

WIN08

WIN09

WIN11

NIE06

NIE08NIE11

NIE06

NIE08NIE11

GRO06 GRO08GRO09GRO11

NST11

BEH07

BEH09BEH11

HOH06EIT06

EIT07

EIT08

EIT09EIT11

BIN06BIN08 BIN09 GOE06GOE08GOE09HID06 HID08HID09MES06 MES09

12 14 16 18 20 22 24 26 28 30 32

TN [µmol-l]

0

1

2

3

4

5

6

7

Fu

cu

stie

fe [m

] AUS06BUE06BUE08

BUE11

BOO06

BOO07

BOO08BOO09

BOO11

WAL06

WAL09

WAL11

STR08

STR09

STR11WIN07

WIN08

WIN09

WIN11

NIE06

NIE08NIE11

NIE06

NIE08NIE11

GRO06 GRO08GRO09GRO11

NST11

BEH07

BEH09BEH11

HOH06EIT06

EIT07

EIT08

EIT09EIT11

BIN06BIN08 BIN09 GOE06GOE08GOE09HID06 HID08HID09MES06 MES09

r = -0,430809; p = 0,001789; r2 = 0,185596

Create PDF files without this message by purchasing novaPDF printer ( http://www.novapdf.com)

EQR_Ch neu = 0,2048-0,0014*x; 0,95 Konf.Int.

SSE_07SSE_08SSE_09SSE_11 AW-1_07AW-1_08

BA-2_10BA-2_11

BA-2_12BAW-1_12

BRE-1_10BRE-1_12

DAS-1_07DAS-2_12 DAS-2_07DAS-2_08DAS-2_09DAS-2_11DAS-3_07

DW-1_09DW-1_10DW-1_12

DW-1_08

EGG-1_07EGG-1_08

EGG-1_11

FL-2_05G-1_04

GR-1_05GRA-1_07GRA-1_08GRA-1_06GRA-1_10

GRA-1_11

GST-1_08HEI-1_09HEI-1_10HEI-1_12HEI-1_08HEI-1_11

HV-1_05HW-1_12

HW-1_04

HW-1_10

JB-1_09

JB-1_11

JB-1_04

JB-7_04

JB-7_10JB-7_11

JB-7_08JB-7_09

JB-7_07

KB-1_11KB-1_08KB-1_09KB-1_10KB-1_06KB-2_07

KB-2_05

KH-1_07

KI-1_07KI-1_10KI-1_11KI-1_04

KJB-2_07KRU-1_07KRU-1_08LAN-1_09 LAN-1_11 LAS-1_08LIW-1_08MUE-1_09

OB-1_10

OB-1_12

OB-1_11

OB-2_10OB-2_08OB-2_09OB-2_11OB-2_12

PAR-1_09

PEP-1_09

PÖW-1_10PÖW-1_12PÖW-1_08PÖW-1_09PÖW-1_11PRO-1_12PS-1_04R-1_04

RAS-1_11RAS-1_09

RED-1_08

SB-2_04

SCH-1_05 SCH-10_08SCH-10_11SCH-10_12SCH-10_07SCH-10_09SCH-11_07SCH-12_07SCH-13_07SCH-14_07SCH-15_12SCH-2_12SCH-3_05SCH-4_05SCH-5_12SCH-5_11SCH-5_05 SCH-5_08SCH-5_09SCH-6_05SCH-6_07SCH-7_10SCH-7_11SCH-7_07SCH-7_08SCH-7_09SCH-7_05SCH-8_07SCH-8_05

SCH-9_10SCH-9_09SCH-9_12

SCH-9_11SCH-9_08SCH-9_05

SH-1_04SH-1_05SH-2_05

SH-2_07

SH-3_11SH-3_12

SH-3_05SH-3_07SH-3_09 SNA-1_11SNA-1_08SNA-1_09SNA-1_07SPA-1_08

SPR-1_12

SPR-1_09SPR-1_10SPR-1_11

ST-1_08ST-1_07

ST-1_09ST-1_05

ST-2_05ST-4_05

STA-1_07

UMM-1_12

VI-1_05VI-1_09VI-1_07 VI-1_08

VI-1_12

VI-1_10

VIT-1_12WAF-1_09WAF-1_08

WAO-1_12WB-1_11WB-1_09WB-1_05 WEL-1_10WEL-1_11WEN-1_10WEN-1_11

WEN-1_09

WRE-1_12ZIC-1_09ZIC-1_10ZIC-1_07

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280

TN [µmol-l]

0,0

0,2

0,4

0,6

0,8

1,0

EQ

R C

ha

race

en

SSE_07SSE_08SSE_09SSE_11 AW-1_07AW-1_08

BA-2_10BA-2_11

BA-2_12BAW-1_12

BRE-1_10BRE-1_12

DAS-1_07DAS-2_12 DAS-2_07DAS-2_08DAS-2_09DAS-2_11DAS-3_07

DW-1_09DW-1_10DW-1_12

DW-1_08

EGG-1_07EGG-1_08

EGG-1_11

FL-2_05G-1_04

GR-1_05GRA-1_07GRA-1_08GRA-1_06GRA-1_10

GRA-1_11

GST-1_08HEI-1_09HEI-1_10HEI-1_12HEI-1_08HEI-1_11

HV-1_05HW-1_12

HW-1_04

HW-1_10

JB-1_09

JB-1_11

JB-1_04

JB-7_04

JB-7_10JB-7_11

JB-7_08JB-7_09

JB-7_07

KB-1_11KB-1_08KB-1_09KB-1_10KB-1_06KB-2_07

KB-2_05

KH-1_07

KI-1_07KI-1_10KI-1_11KI-1_04

KJB-2_07KRU-1_07KRU-1_08LAN-1_09 LAN-1_11 LAS-1_08LIW-1_08MUE-1_09

OB-1_10

OB-1_12

OB-1_11

OB-2_10OB-2_08OB-2_09OB-2_11OB-2_12

PAR-1_09

PEP-1_09

PÖW-1_10PÖW-1_12PÖW-1_08PÖW-1_09PÖW-1_11PRO-1_12PS-1_04R-1_04

RAS-1_11RAS-1_09

RED-1_08

SB-2_04

SCH-1_05 SCH-10_08SCH-10_11SCH-10_12SCH-10_07SCH-10_09SCH-11_07SCH-12_07SCH-13_07SCH-14_07SCH-15_12SCH-2_12SCH-3_05SCH-4_05SCH-5_12SCH-5_11SCH-5_05 SCH-5_08SCH-5_09SCH-6_05SCH-6_07SCH-7_10SCH-7_11SCH-7_07SCH-7_08SCH-7_09SCH-7_05SCH-8_07SCH-8_05

SCH-9_10SCH-9_09SCH-9_12

SCH-9_11SCH-9_08SCH-9_05

SH-1_04SH-1_05SH-2_05

SH-2_07

SH-3_11SH-3_12

SH-3_05SH-3_07SH-3_09 SNA-1_11SNA-1_08SNA-1_09SNA-1_07SPA-1_08

SPR-1_12

SPR-1_09SPR-1_10SPR-1_11

ST-1_08ST-1_07

ST-1_09ST-1_05

ST-2_05ST-4_05

STA-1_07

UMM-1_12

VI-1_05VI-1_09VI-1_07 VI-1_08

VI-1_12

VI-1_10

VIT-1_12WAF-1_09WAF-1_08

WAO-1_12WB-1_11WB-1_09WB-1_05 WEL-1_10WEL-1_11WEN-1_10WEN-1_11

WEN-1_09

WRE-1_12ZIC-1_09ZIC-1_10ZIC-1_07

r = -0,449146; p = 0,00000; r2 = 0,201732



Data availability restricted even for widely distributed species



Data availability for hard bottom species even more restricted


Candidate macrophyte indicators

Biomass ratio of opportunistic species + WFD metric in some countries (monitoring in place) + applicable also in assessment units with low visibility + based on “hard” data: a “real” sample with species richness, composition and biomass - time and cost intensive (laboratory work) - method not harmonized between countries (term opportunistic is handled differently)

Cumulated cover of macrophyte species + cover estimates part of many monitoring programmes + highly significant pressure-relationship for DK and SE data + less time and cost intensive (no laboratory work) - method not applicable in areas with low visibility and difficult in areas with high species richness - no hard data, no sample - method not harmonized between countries

Lower depth limit of macrophyte species - HELCOM II 2-2014 joint/Documents... · Lower depth limit...

Documents

Transcript of Lower depth limit of macrophyte species - HELCOM II 2-2014 joint/Documents... · Lower depth limit...