Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee
The Dutch mussel farming industry is based on the use of young mussels fished from naturally occurring mussel beds as raw material. The Wadden Sea is a designated protected area, and therefore the uptake of this mussel spat needs a permit under the Nature Conservation Act. In order to assess whether the natural values of the area will be affected by the fishery, insight is needed into the effects of mussel fishery on the nature in the Wadden Sea, and more particularly for the conservation objectives set out in the framework of Natura 2000 for the Wadden Sea. Therefore the Ministry of Economic Affairs and the Producer Organisation of Dutch mussel survey initiated the research project ‘PRODUS’ in 2006. Part of PRODUS is a comparative study at 40 sites with paired, adjacent research plots of 4 ha each, one of which was open to fishing the other completely closed to fishing. The sites were positioned in newly developed mussel spat beds. These study sites could not all be established at the same time because there needed to be enough new spat in each area, which depends on natural spat fall, and this varies significantly from year to year. In 2006 the sampling started in 10 sites, then the number of sites increased each year from 2010 to eventually include 40 sites. Mussels are generally fished twice a year; in the autumn on the newly formed spat beds, particularly in beds that are relatively unstable and therefore have a greater chance of disappearing in winter; and a second time following the spring, in the remaining beds in the more stable areas. In the study, the effects of the autumn and the spring fishery were analyzed separately. Parallel to the research in open and closed plots was a Wadden Sea wide survey conducted in 2008 in which the benthic composition in the sublittoral areas of Wadden Sea was determined. In the period 2008 - 2010 a comparison was also made of the benthic composition and environmental characteristics of wild mussel beds and cultured mussel plots. Furthermore, in 2009 and 2010 some of the larger mussel beds were permanently closed to fishing, and a study was conducted to investigate what the consequences for these mussel beds were. The present report deals with the development of the mussel stock in each of the sites, in the mussel beds that were closed in 2009 and 2010 and their backgrounds in relation to fishing.
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| Subjects: | fisheries, mussel culture, mussels, nature conservation, seed banks, seeds, shellfish fisheries, soil fauna, wadden sea, bodemfauna, mossels, mosselteelt, natuurbescherming, schaal- en schelpdierenvisserij, visserij, waddenzee, zaadbanken, zaden, |
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fisheries mussel culture mussels nature conservation seed banks seeds shellfish fisheries soil fauna wadden sea bodemfauna mossels mosselteelt natuurbescherming schaal- en schelpdierenvisserij visserij waddenzee zaadbanken zaden fisheries mussel culture mussels nature conservation seed banks seeds shellfish fisheries soil fauna wadden sea bodemfauna mossels mosselteelt natuurbescherming schaal- en schelpdierenvisserij visserij waddenzee zaadbanken zaden |
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fisheries mussel culture mussels nature conservation seed banks seeds shellfish fisheries soil fauna wadden sea bodemfauna mossels mosselteelt natuurbescherming schaal- en schelpdierenvisserij visserij waddenzee zaadbanken zaden fisheries mussel culture mussels nature conservation seed banks seeds shellfish fisheries soil fauna wadden sea bodemfauna mossels mosselteelt natuurbescherming schaal- en schelpdierenvisserij visserij waddenzee zaadbanken zaden van Stralen, M.R. Craeymeersch, J.A.M. Drent, J. Glorius, S.T. Jansen, J.M. Smaal, A.C. Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee |
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The Dutch mussel farming industry is based on the use of young mussels fished from naturally occurring mussel beds as raw material. The Wadden Sea is a designated protected area, and therefore the uptake of this mussel spat needs a permit under the Nature Conservation Act. In order to assess whether the natural values of the area will be affected by the fishery, insight is needed into the effects of mussel fishery on the nature in the Wadden Sea, and more particularly for the conservation objectives set out in the framework of Natura 2000 for the Wadden Sea. Therefore the Ministry of Economic Affairs and the Producer Organisation of Dutch mussel survey initiated the research project ‘PRODUS’ in 2006. Part of PRODUS is a comparative study at 40 sites with paired, adjacent research plots of 4 ha each, one of which was open to fishing the other completely closed to fishing. The sites were positioned in newly developed mussel spat beds. These study sites could not all be established at the same time because there needed to be enough new spat in each area, which depends on natural spat fall, and this varies significantly from year to year. In 2006 the sampling started in 10 sites, then the number of sites increased each year from 2010 to eventually include 40 sites. Mussels are generally fished twice a year; in the autumn on the newly formed spat beds, particularly in beds that are relatively unstable and therefore have a greater chance of disappearing in winter; and a second time following the spring, in the remaining beds in the more stable areas. In the study, the effects of the autumn and the spring fishery were analyzed separately. Parallel to the research in open and closed plots was a Wadden Sea wide survey conducted in 2008 in which the benthic composition in the sublittoral areas of Wadden Sea was determined. In the period 2008 - 2010 a comparison was also made of the benthic composition and environmental characteristics of wild mussel beds and cultured mussel plots. Furthermore, in 2009 and 2010 some of the larger mussel beds were permanently closed to fishing, and a study was conducted to investigate what the consequences for these mussel beds were. The present report deals with the development of the mussel stock in each of the sites, in the mussel beds that were closed in 2009 and 2010 and their backgrounds in relation to fishing. |
| format |
External research report |
| topic_facet |
fisheries mussel culture mussels nature conservation seed banks seeds shellfish fisheries soil fauna wadden sea bodemfauna mossels mosselteelt natuurbescherming schaal- en schelpdierenvisserij visserij waddenzee zaadbanken zaden |
| author |
van Stralen, M.R. Craeymeersch, J.A.M. Drent, J. Glorius, S.T. Jansen, J.M. Smaal, A.C. |
| author_facet |
van Stralen, M.R. Craeymeersch, J.A.M. Drent, J. Glorius, S.T. Jansen, J.M. Smaal, A.C. |
| author_sort |
van Stralen, M.R. |
| title |
Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee |
| title_short |
Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee |
| title_full |
Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee |
| title_fullStr |
Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee |
| title_full_unstemmed |
Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee |
| title_sort |
het mosselbestand op de produs - vakken en de effecten van de visserij daarop : effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke waddenzee |
| publisher |
Marinx |
| url |
https://research.wur.nl/en/publications/het-mosselbestand-op-de-produs-vakken-en-de-effecten-van-de-visse |
| work_keys_str_mv |
AT vanstralenmr hetmosselbestandopdeprodusvakkenendeeffectenvandevisserijdaaropeffectenvanmosselzaadvisserijopsublitoralenatuurwaardenindewestelijkewaddenzee AT craeymeerschjam hetmosselbestandopdeprodusvakkenendeeffectenvandevisserijdaaropeffectenvanmosselzaadvisserijopsublitoralenatuurwaardenindewestelijkewaddenzee AT drentj hetmosselbestandopdeprodusvakkenendeeffectenvandevisserijdaaropeffectenvanmosselzaadvisserijopsublitoralenatuurwaardenindewestelijkewaddenzee AT gloriusst hetmosselbestandopdeprodusvakkenendeeffectenvandevisserijdaaropeffectenvanmosselzaadvisserijopsublitoralenatuurwaardenindewestelijkewaddenzee AT jansenjm hetmosselbestandopdeprodusvakkenendeeffectenvandevisserijdaaropeffectenvanmosselzaadvisserijopsublitoralenatuurwaardenindewestelijkewaddenzee AT smaalac hetmosselbestandopdeprodusvakkenendeeffectenvandevisserijdaaropeffectenvanmosselzaadvisserijopsublitoralenatuurwaardenindewestelijkewaddenzee |
| _version_ |
1816160205909524480 |
| spelling |
dig-wur-nl-wurpubs-4399992024-09-30 van Stralen, M.R. Craeymeersch, J.A.M. Drent, J. Glorius, S.T. Jansen, J.M. Smaal, A.C. External research report Het mosselbestand op de PRODUS - vakken en de effecten van de visserij daarop : Effecten van mosselzaadvisserij op sublitorale natuurwaarden in de westelijke Waddenzee 2013 The Dutch mussel farming industry is based on the use of young mussels fished from naturally occurring mussel beds as raw material. The Wadden Sea is a designated protected area, and therefore the uptake of this mussel spat needs a permit under the Nature Conservation Act. In order to assess whether the natural values of the area will be affected by the fishery, insight is needed into the effects of mussel fishery on the nature in the Wadden Sea, and more particularly for the conservation objectives set out in the framework of Natura 2000 for the Wadden Sea. Therefore the Ministry of Economic Affairs and the Producer Organisation of Dutch mussel survey initiated the research project ‘PRODUS’ in 2006. Part of PRODUS is a comparative study at 40 sites with paired, adjacent research plots of 4 ha each, one of which was open to fishing the other completely closed to fishing. The sites were positioned in newly developed mussel spat beds. These study sites could not all be established at the same time because there needed to be enough new spat in each area, which depends on natural spat fall, and this varies significantly from year to year. In 2006 the sampling started in 10 sites, then the number of sites increased each year from 2010 to eventually include 40 sites. Mussels are generally fished twice a year; in the autumn on the newly formed spat beds, particularly in beds that are relatively unstable and therefore have a greater chance of disappearing in winter; and a second time following the spring, in the remaining beds in the more stable areas. In the study, the effects of the autumn and the spring fishery were analyzed separately. Parallel to the research in open and closed plots was a Wadden Sea wide survey conducted in 2008 in which the benthic composition in the sublittoral areas of Wadden Sea was determined. In the period 2008 - 2010 a comparison was also made of the benthic composition and environmental characteristics of wild mussel beds and cultured mussel plots. Furthermore, in 2009 and 2010 some of the larger mussel beds were permanently closed to fishing, and a study was conducted to investigate what the consequences for these mussel beds were. The present report deals with the development of the mussel stock in each of the sites, in the mussel beds that were closed in 2009 and 2010 and their backgrounds in relation to fishing. Als grondstof voor de Nederlandse mosselkweek wordt van oudsher gebruikt gemaakt van jonge mosseltjes die van de van nature aanwezige mosselbanken worden opgevist. De Waddenzee is aangewezen als beschermd natuurgebied en daarom is voor het opvissen van dit “mosselzaad” een vergunning nodig in het kader van de Natuurbeschermingswet. Om te kunnen beoordelen of de natuurwaarden van het gebied door de beoogde visserij niet worden aangetast is inzicht nodig in de effecten van de mosselzaadvisserij op de Waddennatuur en meer in het bijzonder voor de instandhoudingsdoelstellingen zoals die in het kader van Natura-2000 voor de Waddenzee zijn geformuleerd. Om reden daarvan is door het ministerie van Economische Zaken en de Producentenorganisatie van de Nederlandse Mosselcultuur in 2006 onderzoek geïnitieerd, het zogenaamde PRODUS-onderzoek. Onderdeel van PRODUS is een vergelijkend onderzoek op 40 locaties met gepaarde onderzoeksvakken van elk 4 ha en waarbij in het ene vak wel en het andere vak niet mocht worden gevist. De locaties zijn aangelegd in nieuw ontstane zaadbanken. De locaties konden niet allemaal tegelijk worden ingesteld omdat daar voldoende nieuwe zaadbanken voor nodig zijn, hetgeen afhankelijk is van de natuurlijke zaadval en welke van jaar tot jaar sterk varieert. In 2006 is gestart met 10 locaties en het heeft tot het voorjaar van 2010 geduurd voordat alle 40 onderzoekslocaties konden worden aangelegd en ingericht. De mosselzaadvisserij vindt doorgaans tweemaal per jaar plaats, in het najaar op nieuw gevormde zaadbanken, waarbij de visserij zich richt op banken met een grote kans om in de winter te verdwijnen en in het voorjaar waarbij ook op banken in de meer stabiele gebieden wordt gevist. In het onderzoek zijn de effecten van de najaars- en de voorjaarsvisserij apart geanalyseerd. Naast het onderzoek in de open en gesloten vakken is er in 2008 een Waddenzee brede survey uitgevoerd waarbij de bodemdiersamenstelling in de sublitorale delen van Waddenzee is bepaald. In de periode 2008 – 2010 is daarnaast een vergelijking gemaakt van de bodemdiersamenstelling en omgevingskenmerken van wilde mosselbanken en mosselkweekpercelen. Verder zijn er in 2009 en 2010 twee complete mosselbanken permanent gesloten voor visserij. Voorliggend rapport behandelt de ontwikkeling van het mosselbestand in de vakken en in de in 2009 en 2010 gesloten banken. nl Marinx application/pdf https://research.wur.nl/en/publications/het-mosselbestand-op-de-produs-vakken-en-de-effecten-van-de-visse https://edepot.wur.nl/260485 fisheries mussel culture mussels nature conservation seed banks seeds shellfish fisheries soil fauna wadden sea bodemfauna mossels mosselteelt natuurbescherming schaal- en schelpdierenvisserij visserij waddenzee zaadbanken zaden Wageningen University & Research |