SRA Study in Kattegat and Øresund Flemming T. Hansen and Asbjørn Christensen, DTU Aqua Frank Stuer-Lauridsen, LITEHAUZ 13/12/2018 OSPAR HELCOM TG Ballast 1
A-4 Exemptions G7 Risk Assessment Country A Same Risk Area Same Risk Area Country B Country C 13/12/2018 OSPAR HELCOM TG Ballast 2
The SRA exemption process • Risk assessment following G7 • Species-specific and environmental matching • SRA natural dispersal • Hydrographic model (agent based connectivity) • Biological characteristics • Habitat mapping 13/12/2018 OSPAR HELCOM TG Ballast 3
SRA target species • 85 target species – 39 HELCOM/OSPAR tool – 7 Danish list – 39 Aquanis • 23 species shortlisted – Biological characteristics 13/12/2018 OSPAR HELCOM TG Ballast 4
Selection criteria - for species to be included in the marine connectivity study EXCLUDED IF… : Species with the entire life cycle in the water column • MIS witch are already widely distributed and fully established in the Kattegat • and Øresund region. (e.g. Acartia tonsa, Mya arenaria ) Species with no or very limited salinity tolerance < 10 psu (e.g. Dreissena • bugensis ) Macro algae, macrophytes and highly mobile species • => Total of 23 species
Target species data Survival Temperature Min-Max (C ) Pelagic Larvae Duration Min-Max (days) Time to Maturity Min-Max (months) Spawning Start-End (month) Reproduction Temperature Min-Max (C ) Reproduction Salinity Min-Max (psu) Habitat Depth Max (m)
23 target species traits data
Hydrographic data which year(s) to include? 2005 2010 2012 NAO = North Atlantic Oscillation! Definition: “…the seasonal average air pressure difference between stations, e.g. Azores and Reykavik”
Analysing Natural Dispersal and Connectivity S ame- R isk- A rea A ssessment M odel PHYSICS Ocean currents Ocean temperature Ocean salinity BIOLOGY Larval duration Spawning season Habitat Tolerance temp Tolerance salinity Vertical distribution 9
Dispersal probabilities Connectivity 13/12/2018 OSPAR HELCOM TG Ballast 11
Interpretation of results Connectivty 1,2,3 Dispersal potential Habitat conditions 1,2,3 - / + / ++ Pressence status 1,2,3 Robustness Connectivity: KØ N S W E Ø = No 1 Low - = Not registerd = Low 2 Medimu + = Registrered = high 3 High ++ = Widely distributed 13/12/2018 OSPAR HELCOM TG Ballast 12
Arcuatula senhousia Parameter Paramter Unit Value PLD (min) days 14 PLD (max) days 55 Generations per year no.s 1 Spawning start month 7 Spawning end month 8 Habitat Substrate type All Habitat Depth m 20 Temp. Min (Adult) C 0 Temp. Max (Adult) C 33 Salinity Min (Adult) PSU 17 Salinity Max (Adult) PSU 35 Temp. Min (Larvae) C 22.5 Temp. Max (Larvae) C 30 Salinity Min (Larvae) PSU 17 Salinity Max (Larvae) PSU 30 Arcuatula senhousia 3 Dispersal potential 3 Habitat conditions - Pressence status Robustness 3 Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 13
Arcuatula senhousia Single generation dispersal Muliple generation dispersal 13/12/2018 OSPAR HELCOM TG Ballast 15
Asterias amurensis Paramter Unit Value Parameter PLD (min) days 41 PLD (max) days 120 Generations per year no.s 1 Spawning start month 6 Spawning end month 10 Habitat Substrate type All Habitat Depth m 220 Temp. Min (Adult) C 0 Temp. Max (Adult) C 25 Salinity Min (Adult) PSU 18 Salinity Max (Adult) PSU 41 Temp. Min (Larvae) C 17 Temp. Max (Larvae) C 20 Salinity Min (Larvae) PSU 18 Salinity Max (Larvae) PSU 41 Asterias amurensis 3 Dispersal potential 3 Habitat conditions Pressence status - 3 Robustness Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 16
Austrominius modestus Parameter 1 Dispersal potential 1 Habitat conditions Pressence status 1 1 Robustness Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 17
Bugula neritinatus Parameter Paramter Unit Value PLD (min) days 2 PLD (max) days 0.5 Generations per year no.s 1 Spawning start month 7 Spawning end month 9 Habitat Substrate type Hard Habitat Depth m 10 Temp. Min (Adult) C 0 Temp. Max (Adult) C 25 Salinity Min (Adult) PSU 18 Salinity Max (Adult) PSU 30 Temp. Min (Larvae) C 12 Temp. Max (Larvae) C 26 Salinity Min (Larvae) PSU 14 Salinity Max (Larvae) PSU 32 1 Dispersal potential Habitat conditions 2 - Pressence status Robustness 3 Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 18
Bugulina simplex Parameter Paramter Unit Value PLD (min) days 1 PLD (max) days 1 Generations per year no.s 1 Spawning start month 7 Spawning end month 9 Habitat Substrate type Hard Habitat Depth m 20 Temp. Min (Adult) C 0 Temp. Max (Adult) C 25 Salinity Min (Adult) PSU 18 Salinity Max (Adult) PSU 40 Temp. Min (Larvae) C 0 Temp. Max (Larvae) C 25 Salinity Min (Larvae) PSU 18 Salinity Max (Larvae) PSU 40 Bugulina simplex Dispersal potential 1 1 Habitat conditions Pressence status - 3 Robustness Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 19
Callinectes sapidus Parameter Paramter Unit Value PLD (min) days 31 PLD (max) days 49 Generations per year no.s 1 Spawning start month 5 Spawning end month 8 Habitat Substrate type Mud, Sand Habitat Depth m 36 Temp. Min (Adult) C 5 Temp. Max (Adult) C 30 Salinity Min (Adult) PSU 3 Salinity Max (Adult) PSU 40 Temp. Min (Larvae) C 15 Temp. Max (Larvae) C 25 Salinity Min (Larvae) PSU 20 Salinity Max (Larvae) PSU 40 Callinectes sapidus 2 Dispersal potential Habitat conditions 3 + Pressence status 3 Robustness Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 20
Crassostrea gigas Parameter Paramter Unit Value PLD (min) days 21 PLD (max) days 28 Generations per year no.s 1 Spawning start month 7 Spawning end month 8 Habitat Substrate type Hard Habitat Depth m 15 Temp. Min (Adult) C 3 Temp. Max (Adult) C 35 Salinity Min (Adult) PSU 12 Salinity Max (Adult) PSU 42 Temp. Min (Larvae) C 18 Temp. Max (Larvae) C 26 Salinity Min (Larvae) PSU 10 Salinity Max (Larvae) PSU 42 Crassostrea gigas 3 Dispersal potential Habitat conditions 2 ++ Pressence status 3 Robustness Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 21
Didemnum vexillum Parameter Paramter Unit Value PLD (min) days 0.5 PLD (max) days 1 Generations per year no.s 1 Spawning start month 7 Spawning end month 9 Habitat Substrate type Hard Habitat Depth m 65 Temp. Min (Adult) C 2 Temp. Max (Adult) C 28 Salinity Min (Adult) PSU 18 Salinity Max (Adult) PSU 40 Temp. Min (Larvae) C 14 Temp. Max (Larvae) C 20 Salinity Min (Larvae) PSU 18 Salinity Max (Larvae) PSU 40 Didemnum vexillum 1 Dispersal potential Habitat conditions 2 - Pressence status 3 Robustness Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 22
Ensis americanus Parameter Paramter Unit Value PLD (min) days 14 PLD (max) days 21 Generations per year no.s 1 Spawning start month 3 Spawning end month 4 Habitat Substrate type Mud, Sand Habitat Depth m 12 Temp. Min (Adult) C 0 Temp. Max (Adult) C 26 Salinity Min (Adult) PSU 7 Salinity Max (Adult) PSU 32 Temp. Min (Larvae) C 2 Temp. Max (Larvae) C 28 Salinity Min (Larvae) PSU 15 Salinity Max (Larvae) PSU 32 Ensis americanus 3 Dispersal potential Habitat conditions 3 ++ Pressence status 2 Robustness Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 23
Eriocheir sinensis Parameter Paramter Unit Value PLD (min) days 30 PLD (max) days 60 Generations per year no.s 0.5 Spawning start month 3 Spawning end month 7 Habitat Substrate type All Habitat Depth m 10 Temp. Min (Adult) C 0 Temp. Max (Adult) C 25 Salinity Min (Adult) PSU 0 Salinity Max (Adult) PSU 30 Temp. Min (Larvae) C 12 Temp. Max (Larvae) C 35 Salinity Min (Larvae) PSU 15 Salinity Max (Larvae) PSU 32 Eriocheir sinensis 2 Dispersal potential Habitat conditions 3 + Pressence status 3 Robustness 13/12/2018 OSPAR HELCOM TG Ballast 24 Connectivity: KØ N S W E Ø
Ficopomatus enigmaticus Parameter Paramter Unit Value PLD (min) days 20 PLD (max) days 25 Generations per year no.s 1 Spawning start month 7 Spawning end month 9 Habitat Substrate type hard Habitat Depth m 10 Temp. Min (Adult) C 0 Temp. Max (Adult) C 30 Salinity Min (Adult) PSU 5 Salinity Max (Adult) PSU 40 Temp. Min (Larvae) C 18 Temp. Max (Larvae) C 26 Salinity Min (Larvae) PSU 10 Salinity Max (Larvae) PSU 30 Ficopomatus enigmaticus 2 Dispersal potential 2 Habitat conditions Pressence status + Robustness 2 Connectivity: KØ N S W E Ø 13/12/2018 OSPAR HELCOM TG Ballast 25
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