ClosedServicesEuropean

Ecosystem approach crayfish Molenpolder

Name: Ecosystem approach crayfish Molenpolder
Creator: Stichting Waternet
Published: 2023-01-27
License: https://creativecommons.org/publicdomain/zero/1.0/
Keywords: crayfish, ecosystem approach, Molenpolder, water management, invasive species, WFD, Natura2000

Stichting Waternet · 14 lots · 286739

0 of 6 core insights found

Measures presence, not accuracy · documents remain authoritative

ScopeAdvicePoints of attentionSuitability requirementsAward criteriaTimeline

Type

Services

92533000

Estimated value

€ 1,40M

estimated

To deadline

Ongoing

Knock-outs

n/a

exclusion grounds

Award basis

Best price-quality ratio

Assess manuallyconfidence low

Waternet wants to test an ecosystem approach for controlling invasive crayfish in the Molenpolder. The approach focuses on reducing phosphorus loading, stimulating natural predation by fish and grebes, and the restoration of submerse and emerse vegetation and structures. By combining these measures, Waternet hopes to reduce the negative effects of crayfish on biodiversity, WFD targets, and Natura2000 areas. The tender concerns a service contract in which a party with expertise in ecological water management must implement, monitor, and report on the approach in practice.

Services · European procedure

European

Contracting authority

Stichting Waternet

Noord-Holland

Contract type

Services

Estimated value

€1,395,372

estimated value

Submission deadline

Ongoing

Scope

European

European procedure

Lots

14 lots

Main CPV code

92533000

Location

Amsterdam, Noord-Holland

CharacteristicsCPV 92ServicesEU tendercrayfishecosystem approachMolenpolder

01What is being requested

Waternet wants to test an ecosystem approach for controlling invasive crayfish in the Molenpolder. The approach focuses on reducing phosphorus loading, stimulating natural predation by fish and grebes, and the restoration of submerse and emerse vegetation and structures. By combining these measures, Waternet hopes to reduce the negative effects of crayfish on biodiversity, WFD targets, and Natura2000 areas. The tender concerns a service contract in which a party with expertise in ecological water management must implement, monitor, and report on the approach in practice.

Invasive crayfish are a threat to biodiversity, WFD, and Natura2000 targets. The crayfish clip and eat aquatic plants, cloud the water with their burrowing behavior, and eat invertebrates and amphibian larvae. At high densities, crayfish can have a major negative impact on the biological functioning of surface waters. Furthermore, some burrowing species cause mechanical damage to banks. In this way, crayfish hinder the achievement of WFD and Natura2000 targets. An ecosystem approach to controlling crayfish has been developed for the Molenpolder, which globally consists of: further reduction of

92533000€ 1,40MServices

1Lot 1—

2Lot 2—

3Lot 3—

4Lot 4—

5Lot 5—

6Lot 6—

7Lot 7—

8Lot 8—

9Lot 9—

10Lot 10—

11Lot 11—

12Lot 12—

13Lot 13—

14Lot 14—

02Breakdown by lot

Lot 1n/a

Lot 2n/a

Lot 3n/a

Lot 4n/a

Lot 5n/a

Lot 6n/a

Lot 7n/a

Lot 8n/a

Lot 9n/a

Lot 10n/a

Lot 11n/a

Lot 12n/a

Lot 13n/a

Lot 14n/a

Per-lot values not published — bars show only the lot breakdown.

03Exclusion grounds

Exclusion grounds — consult the ESPD

No specific exclusion grounds were extracted. In a European tender, the mandatory and discretionary grounds of art. 2.86/2.87 of the Dutch Procurement Act almost always apply — check the European Single Procurement Document (ESPD).

04Value in context

€1,395,372

05Likely competitors

#Likely bidderFitWins

1Bender Detachering B.V.SME583×

2Dick Klok Cultuurtechniek B.V.SME562×

3Antea Nederland BVSME541×

4Van Doorn Geldermalsen B.V.SME521×

5Witteveen+Bos Raadgevende ingenieurs B.V. potentialSME400×

6ATKB potentialUnknown400×

06Tender documents

TN396554 - SF01 Vooraankondiging 20230127155509pdfJan 27, 2023 · 59 KB

07Legal themes that may be relevant here

Advies 426> Het betreft een Europese openbare procedure voor WMO-vervoer, leerlingenvervoer, participatiewetvervoer en lokaal vervoer, plus Advies 290> Meervoudig onderhandse aanbesteding van RAW-raamovereenkomst met een looptijd van één jaar voor rioolreiniging en rioolinspectie Advies 111> Europese openbare aanbestedingsprocedure voor vogeltellingen. Als een door de aanbestedende dienst betrokken beoordelaar op de v Advies 439> Europese openbare procedure voor een raamovereenkomst voor diensten betreffende het vervoer van stoffelijke overschotten. De opd Advies 83> Openbaar nationale aanbestedingsprocedure voor een raamovereenkomst voor vertaaldiensten. IIB dienst en gebondenheid aan algemen

08Frequently asked questions

What is the goal of the ecosystem approach in the Molenpolder?

The approach is aimed at controlling invasive crayfish to reduce the negative effects on biodiversity, WFD targets, and Natura2000 areas. This is achieved by reducing phosphorus loading, stimulating natural predation by fish and grebes, and the restoration of submerse and emerse vegetation and structures.

Which specific problems with crayfish are being addressed?

The approach focuses on the threat that crayfish pose to biodiversity, whereby they eat aquatic plants, cloud the water through burrowing behavior, and consume invertebrates or amphibian larvae. Additionally, mechanical damage to banks caused by burrowing species is addressed.

What does the practical execution of this assignment entail?

The assignment involves testing the theoretical ecosystem approach for controlling crayfish in practice within the Molenpolder. This includes the implementation, monitoring, and reporting of the chosen measures.

Automatically compiled from the official tender data and documents.

09Estimated value versus the market

p25
€ 500K

median
€ 1,1 mln

p75
€ 3,0 mln

€ 1,4 mln

Gegunde waarden in CPV 92 · diensten n=149