Primary and Secondary Settlement in Mytilus edulis L. (Mollusca)

Bayne, B. L.

doi:10.2307/2569

Cited by 396 publications

(259 citation statements)

References 9 publications

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“…Each female releases eggs in batches throughout the following spring and summer, and by July most are spent. After 6 wk or more in the plankton and primary settlement stages (Bayne 1964, McGrath et al 1988, plantigrade larvae settle among adults on established beds or on suitable substrata to form new beds.…”

Section: Site and Methodsmentioning

confidence: 99%

“…However, there are differences between species in the details of population dynamics. The inverse relationship between total stock and spat in cockles, attributed to cannibalism and competition with adults (Hancock 1973, Dempster 1975) is avoided by another intertidal lamellibranch, Macoma balthica, and by M. edulis by spat settling initially away from the adult beds, and only at a later stage migrating onto them (Bayne 1964, Beukema 1982. Subsequently, there was a density-dependent loss of spat in both M. balthica in the Wadden Sea and in M. edulis in the Exe, but the timing was different.…”

Section: Do Good Spat-years Lead To More Adults?mentioning

confidence: 99%

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Population dynamics of the mussel Mytilus edulis: density changes and regulation of the population in the Exe estuary, Devon

McGrorty¹,

Clarke²,

Reading³

et al. 1990

Mar. Ecol. Prog. Ser.

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Population dynamics of the intertidal mussel population in the River Exe estuary, Devon (UK) over 7 yr (1976 to 1983) are described. There was no significant trend in adult numbers, and annual variations were small (1.5-fold, minimum to maximum). In contrast, the density of 'spat' mussels (0-year) varied uldely ( l ?~) , suggesting that a strong damping process acted during the first year. Considering just first-year mortality, failure to settle on the beds (k3) had the greatest influence on annual variations in total mortality (K). But losses in the first winter after settlement (k5) were strongly and positively denslty dependent. k3 was inversely density dependent, but only in 6 out of 7 yr. Other first-year losses were independent of density. After the large first-winter mortality (mean 68 %), there were only small gains in summer and small losses in winter for the next 4 yr. Thereafter, increasingly large losses occurred (mean 39 % ) each summer after spawning and each winter (mean 24 ?h), due mainly to bud predation. Some of the over-summer and over-winter changes in adult densities were density dependent, but their effect was small and only served as a 'fine tuning' mechanism keeping densities within very narrow limits. Though mortalities at various stages were correlated with the weather, the main feature of the population was its pronounced stability, due mainly to the powerful regulation acting during the first year on the mussel beds.

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Section: Site and Methodsmentioning

confidence: 99%

Section: Do Good Spat-years Lead To More Adults?mentioning

confidence: 99%

Population dynamics of the mussel Mytilus edulis: density changes and regulation of the population in the Exe estuary, Devon

McGrorty¹,

Clarke²,

Reading³

et al. 1990

Mar. Ecol. Prog. Ser.

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“…Plantigrades of Mytilus edulis are attracted to settle amongst filamentous or pitted substrata (De Blok & Geelen 1958, Bayne 1964, Seed 1969, Dean & Hurd 1980, Brault & Bourget 1985, and in this study facilitation of mussel recruitment by the early colonists Tubularia crocea and Balanus irnprovisus reflected this attraction. The presence of hydroids or barnacles thus enhanced rates of succession to dominance by the long-lived, dominant species in the community.…”

Section: Effect Of Prior Occupants On Succession To Mussel Dominancementioning

confidence: 50%

“…the solitary ascidian Molgula manhattensis, the encrusting bryozoan Alcyonidium polyoum, and the stoloniferous bryozoan Bowerbankia grac~lis which formed dense mats) during the winter months of 1980/1981; however by spring of 1981 the mussel Mytilus edulis was rapidly assuming complete dominance. Mussels first began to appear in February 1981 as young plantigrades (Bayne 1964) attached to the degenerate hydrocauli and stolons of Tubulana crocea colonies. This positive association of young mussels with the hydroid colonies was reflected by a greater initial percent cover of mussels on the edges of plates (mean = 7.0 %) where significantly more T. crocea colonies had become established (see above) than in the centers of plates (mean = 1.4 '10) (matched pair Student's test; t = 5.532, p < 0.001, n = l?…”

Section: Hydroidsmentioning

confidence: 99%

Formation and disruption of aggregations of Mytilus edulis in the fouling community of San Francisco Bay, California

Okamura¹

1986

Mar. Ecol. Prog. Ser.

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Successional dynamics of a fouling assemblage in San Francisco Bay were studied on a series of formica plates. Hydroids and barnacles were found to accelerate rates of succession to mussel dominance by fachtating recruitment of young mussels. Development of hydroid colonies along the borders of plates produced an edge effect that was reflected in the pattern of recruitment of mussels onto plates. The importance of edge-to-center ratios on plates of different sizes and shapes to rates of succession is discussed. Substantial annual and seasonal variation in recruitment was found to influence rates of succession to mussel dominance. Disrupbon of mussel dominance occurred when a mixed school of surfperch took up temporary residence. Predation on mussels by surfperch allowed other species to become established on plates, thereby promoting a more diverse assemblage, however disruption of mussel dominance by surfperch appears to be an unpredictable event, and local sites may be dominated for many years by a monoculture of mussels.

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“…contributions in Gosling, 1992), studies on the recruitment preferences have mostly focused on the physical aspects of settlement substrata. Thus, it seems well established that Mytilus postlarvae prefer to settle first onto artificial or natural filamentous structures such as hydroids or certain algae (Bayne, 1964(Bayne, , 1976King et al, 1990;McGrath et al, 1994;Hunt & Scheibling, 1996;Pulfrich, 1996). In some cases, however, larvae seem to directly settle into blue mussel beds (McGrath et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Untitled

Dobretsov

Wahl

2001

Hydrobiologia

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We tested the assumption that fouling pressure by the blue mussel Mytilus edulis on a small spatial scale -especially onto a given substratum type -is homogeneous. Artificial substrata were exposed to natural recruitment within and outside different microhabitats. These microhabitats were monospecific patches (diameter in the meter range) in a mixed subtidal community composed of the brown algae Laminaria saccharina, and Chorda tomentosa, the green filamentous alga Cladophora rupestris, and the blue mussel Mytilus edulis. While mussel spat settled in all microhabitats, recruitment was far from homogeneous. Within microhabitats, artificial substrata were preferred over living surfaces. Recruitment also differed between microhabitats exhibiting identical preference gradients on living surfaces and associated artificial substrata: recruitment preference for microhabitats increased in the order Laminaria saccharina < control area (stone or mud) < Chorda tomentosa < Cladophora rupestris< Mytilus edulis. In a second experimental approach on a smaller spatial scale (cm range), we assessed mussel recruitment in the vicinity of identical aliquots of some of the microhabitat-constituting species. Again, Laminaria proved to be of least, Cladophora of highest attractiveness. We conclude that primary settlement of mussel spat is not only influenced by the structure of the substratum (e.g. filamentous forms) but additionally by nearby macroorganisms -presumably by exuded chemical cues as suggested by the second experiment.

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Primary and Secondary Settlement in Mytilus edulis L. (Mollusca)

Cited by 396 publications

References 9 publications

Population dynamics of the mussel Mytilus edulis: density changes and regulation of the population in the Exe estuary, Devon

Population dynamics of the mussel Mytilus edulis: density changes and regulation of the population in the Exe estuary, Devon

Formation and disruption of aggregations of Mytilus edulis in the fouling community of San Francisco Bay, California

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