The autecology of polydora ciliata along the Belgian coast

Daro, M.H.; Polk, P.

doi:10.1016/0077-7579(73)90008-2

Cited by 79 publications

(68 citation statements)

References 3 publications

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“…), and probably other countries too, and could ac count for the different findings. Buck et al (2005) also suggested that the short planktonic phase of the polydorid, which they identified as P. ciliata (2 wk planktonic phase, as described by Daro & Polk 1973; but see also 'Problems with taxonomy' below), also played a role. Undoubtedly, here the effects of a short planktonic phase and the great distance off-shore were further exacerbated by a small source population where only 1.7 to 2.7% of the samples were infested by a mean of up to 6 worms per infested shell (Buck et al 2005, Brenner et al 2009 Poecilogony Poecilogony is a rare reproductive dimorphism (Chia et al 1996.…”

Section: Planktotrophymentioning

confidence: 99%

Polydorid polychaetes on farmed molluscs: distribution, spread and factors contributing to their success

Simon¹,

Sato-Okoshi²

2015

Aquacult. Environ. Interact.

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Species of the Polydora-complex (i.e. polydorids) are the most common shell-boring polychaetes found on cultured molluscs. However, which species become problematic depend on their ability to reach mollusc farms and flourish under culture conditions. We therefore hypothesise that the planktonic larval phases of pest polydorids on molluscs grown on-shore will be short (as is typical of adelphophagic larvae, which can maintain large local populations) while those of polydorids on molluscs grown off-shore will be long (as is typical of planktotrophic larvae, which can disperse long distances to farms). Principal component and discriminant analyses of information extracted from the literature partly supported this hypothesis by identifying larval developmental mode and pest species as contributing more to pest status than host species and culture mode, with differential influence on pest status in different situations and potential bias through incorrect identification of polydorid species. χ 2 analyses confirmed that pest status depended on host culture method and pest larval mode. Pest polydorids producing adelphophagic larvae in on-shore systems may reflect the development of large local populations on hosts with culture periods > 2 yr. The many records of pests in off-shore and near-shore systems with pest species producing planktotrophic larvae may reflect shorter host culture periods and the higher incidence of planktotrophy among polydorid species in general. Polydora websteri, P. uncinata, P. hoplura and P. haswelli are the most frequently recorded and widespread pest species globally, although the taxonomy of these and shell-boring P. ciliata and Boccardia polybranchia need to be clarified. The positive relationships between the numbers of alien shell-borers and pests, and the number of hosts cultured per country confirm that mollusc aquaculture is an important vector and reservoir of alien pest polychaetes.

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Section: Planktotrophymentioning

confidence: 99%

Polydorid polychaetes on farmed molluscs: distribution, spread and factors contributing to their success

Simon¹,

Sato-Okoshi²

2015

Aquacult. Environ. Interact.

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“…Indeed, direct observations confirmed that most P. ciliata holes occurred at the base of barnacle cones. A rapid colonization of experimental snails is highly likely: Polydora larvae are locally present all over the summer (Rodríguez Valencia, 2003) and have been shown to colonize experimentally exposed substrates within weeks (Hempel, 1957(Hempel, , 1960Daro and Polk, 1973). The prevalence of P. ciliata in cleaned snails and unfouled snails was similar to the preload of P. ciliata of fouled and unfouled snails at the start of the experiment (20% and 8%, respectively).…”

Section: Discussionmentioning

confidence: 70%

“…After 14 weeks of exposure, snails with barnacle epibionts showed higher P. ciliata prevalence than con-specifics without epibionts. P. ciliata larvae are known to settle preferentially on uneven surfaces and scratches (Daro and Polk, 1973) and hence the crevices between the base of the barnacle shells and the snail shell surface may have made entering the gastropod shell easier for the polychaete. Indeed, direct observations confirmed that most P. ciliata holes occurred at the base of barnacle cones.…”

Section: Discussionmentioning

confidence: 99%

Vicious circle in the intertidal: Facilitation between barnacle epibionts, a shell boring polychaete and trematode parasites in the periwinkle Littorina littorea

Thieltges

Buschbaum

2007

Journal of Experimental Marine Biology and Ecology

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We studied interactions between three organisms associated with a common gastropod of northern Atlantic shores, the periwinkle Littorina littorea: barnacle epibionts Balanus crenatus, a shell boring polychaete Polydora ciliata, and tissue invading trematodes which use the periwinkles as first intermediate host. Snails collected shortly after barnacle settlement with N 50% cover of barnacles had significantly higher infestation of shell boring worms compared to unfouled snails, while trematode infestation was similar. The result was the same at two sites, and we conclude that the worm P. ciliata facilitates barnacle fouling on snails. The reverse was also the case. In an experiment with 14 weeks of exposure, snail treatments with barnacle epibionts had a significantly higher P. ciliata load than unfouled and cleaned snails. Again, trematode infestations were similar. The reciprocal positive interactions between barnacle epibionts and shell boring worms on snail houses is regarded as a case of facultative mutualism. On the other hand, for the snail basibiont, both barnacles and shell boring worms exert strongly negative effects by reducing fecundity, growth, and survival, resulting in a vicious circle for the snails. The combined effects of these associated organisms may rival in importance any competitive or predacious effects on the host L. littorea.

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“…Daro & Polk, 1973;Jaubet et al, 2011). This was the reason for extensive research in the past in Belgium and The Netherlands (Korringa, 1951;Daro, 1969;Daro & Polk, 1973). However, for about half a century little or no attention has been paid to infestations of non-indigenous species such as shell-boring polychaetes on commercially harvested molluscs in Belgium and The Netherlands.…”

Section: Introductionmentioning

confidence: 99%

“…They can also form dense tube mats covering large areas in polluted or deteriorated habitats, smothering other sessile invertebrates (e.g. Daro & Polk, 1973;Jaubet et al, 2011). This was the reason for extensive research in the past in Belgium and The Netherlands (Korringa, 1951;Daro, 1969;Daro & Polk, 1973).…”

Section: Introductionmentioning

confidence: 99%

Boccardia proboscidea and Boccardiella hamata (Polychaeta: Spionidae: Polydorinae), introduced mud worms new for the North Sea and Europe, respectively

Kerckhof

Faasse

2014

Mar. Biodivers. Rec.

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The autecology of polydora ciliata along the Belgian coast

Cited by 79 publications

References 3 publications

Polydorid polychaetes on farmed molluscs: distribution, spread and factors contributing to their success

Polydorid polychaetes on farmed molluscs: distribution, spread and factors contributing to their success

Vicious circle in the intertidal: Facilitation between barnacle epibionts, a shell boring polychaete and trematode parasites in the periwinkle Littorina littorea

Boccardia proboscidea and Boccardiella hamata (Polychaeta: Spionidae: Polydorinae), introduced mud worms new for the North Sea and Europe, respectively

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