Recent increase of North Sea houting and prospects for recolonization in the Netherlands

Kranenbarg, J.; Winter, H.V.; Backx, J. J. G. M.

doi:10.1111/j.1095-8649.2002.tb01774.x

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Since 1996, a re-introduction programme at the River Rhine was established for anadromous North Sea houting (NSH), Coregonus oxyrinchus (L.) that has been considered extinct in the River Rhine (Kranenbarg et al 2002) as well as in nearly the whole North Sea basin since the 1940s (Lelek 1987). Descendents from the last existing population of NSH in Europe (Jepsen et al 2012) were used for a re-introduction programme in the River Rhine (Borcherding 2011), and monitoring studies revealed information (1) on feeding and downstream migration of stocked juveniles (Borcherding et al 2006), (2) on migratory history of adults in the Rhine delta (Borcherding et al 2008), as well as (3) on natural reproduction of NSH in the Rhine system (Borcherding et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Spawning migration and larval drift of anadromous North Sea houting (Coregonus oxyrinchus) in the River IJssel, the Netherlands

Borcherding

Breukelaar²,

Winter

et al. 2013

Ecology of Freshwater Fish

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Anadromous North Sea houting (NSH, Coregonus oxyrinchus) was historically distributed in the Wadden Sea extending from Jutland (Denmark) to the Schelde delta (Netherlands). The species has been considered extinct in the Rhine since the 1940s; however, a successful re-introduction programme re-established a selfreproducing population. Telemetry data of adult NSH (NEDAP TRAIL System ® ) were used for a first description of the timing of spawning migrations of NSH in winter, but also suggested that the River IJssel, a lower branch of the Rhine, may serve as spawning ground. This was further proven in spring 2010 with drift net catches of 218 freshly hatched NSH larvae sampled directly upstream from Kampen, where the IJssel discharges into Lake IJsselmeer. These larvae did not differ between controls from a hatchery that were about 12 h of age, indicating that the drifting larvae of NSH must have hatched in upstream areas of the River IJssel.

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Section: Introductionmentioning

confidence: 99%

Spawning migration and larval drift of anadromous North Sea houting (Coregonus oxyrinchus) in the River IJssel, the Netherlands

Borcherding

Breukelaar²,

Winter

et al. 2013

Ecology of Freshwater Fish

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“…The anadromous fish species North Sea houting, Coregonus oxyrinchus (L.), became extinct in the River Rhine (Kranenbarg et al 2002) and many other rivers draining to the North Sea in the 1940s (Lelek 1987). The cause was believed to be a combination of overfishing, poor water quality, habitat loss and fragmentation and barriers hampering upstream migrations (De Groot & Nijssen 1997).…”

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confidence: 99%

“…Scale transects of Sr 88 :Ca 44 ratios found only 10% of adult houting caught in Lake IJsselmeer in 2002 reached the sea as small juveniles, while the majority either lived exclusively in fresh water (72%) or migrated to the marine environment later in life (18%) (Borcherding et al 2008). These results are in accordance with suggestions of Kranenbarg et al (2002) that at present the riverine and estuarine waters in the Netherlands function as an important feeding habitat for the species.…”

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confidence: 99%

“…Although the present situation, with dams separating Lake IJsselmeer from the Wadden Sea and Haringvliet from the North Sea, still considerably deviates from the historical situation with open estuaries, houting appears to have suitable habitats available to re-establish. However, the low number of juveniles directly migrating to sea (Borcherding et al 2008) suggest that connectivity and saline gradients at the dams should be restored (Kranenbarg et al 2002), as the populations should be free-ranging in the wild (IUCN 1998).…”

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confidence: 99%

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Re‐establishment of the North Sea houting in the River Rhine

Borcherding¹,

Heynen²,

Jäger-Kleinicke³

et al. 2010

Fisheries Management Eco

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Migration history of North Sea houting (Coregonus oxyrinchus L.) caught in Lake IJsselmeer (The Netherlands) inferred from scale transects of 88Sr:44Ca ratios

Borcherding

Pickhardt

Winter³

et al. 2008

Aquat. Sci.

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Abstract. North Sea houting, Coregonus oxyrinchus, became extinct in the River Rhine in the 1940 s and was reintroduced in the 1990 s. To study the migration history of individuals, the 88 Sr: 44 Ca ratio of scales of 39 houting (10 -44 cm TL) caught in Lake IJsselmeer was analysed using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Scales of houting inhabiting freshwater ponds and two Danish rivers containing the last original populations in the North Sea basin were used as controls. Fish that lived exclusively in freshwater had 88 Sr: 44 Ca ratios of around 0.2 from the nucleus to the edge; 29 of the analysed houting from Lake IJsselmeer were of this type. Most of these were small, but some were mature and up to 42 cm in length. Seven houting had Ca ratios towards the scale edge probably lived in freshwater for a longer period after hatching and then moved to brackish/marine environments. The scale analysis indicates different migration patterns for houting in Lake IJsselmeer and provides evidence that this species (1) is sometimes able to pass the migratory barriers between the Wadden Sea and Lake IJsselmeer, and (2) does not need to migrate to sea to reach maturity.

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Recent increase of North Sea houting and prospects for recolonization in the Netherlands

Cited by 7 publications

References 4 publications

Spawning migration and larval drift of anadromous North Sea houting (Coregonus oxyrinchus) in the River IJssel, the Netherlands

Spawning migration and larval drift of anadromous North Sea houting (Coregonus oxyrinchus) in the River IJssel, the Netherlands

Re‐establishment of the North Sea houting in the River Rhine

Migration history of North Sea houting (Coregonus oxyrinchus L.) caught in Lake IJsselmeer (The Netherlands) inferred from scale transects of 88Sr:44Ca ratios

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