Seepocken der deutschen Küstengewässer

Luther, G.

doi:10.1007/bf02365098

Cited by 20 publications

(17 citation statements)

References 92 publications

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“…It grows slowly and may get several years old. B. crenatus is also a boreal cold water species with settlement of larvae mainly from April to May (Luther 1987). This may explain the reverse dynamics of barnacle abundances observed in the course of our survey in summer 2007.…”

Section: Discussionmentioning

confidence: 73%

“…Since the first record in 1955, A. modestus has never been abundant and the two native barnacles S. balanoides and B. crenatus dominated in the intertidal and subtidal zones, respectively (Luther 1987, Buschbaum 2002a. After the severe winter 1995/96, local records suggest an exponential increase in population density.…”

Section: Discussionmentioning

confidence: 99%

“…In 1955 the first five individuals of A. modestus were recorded at the shore of the island of Sylt in the North Sea (Kühl 1963), which is the site of this study. In subsequent years, A. modestus has been found regularly in low numbers, became relatively common from 1993 to 1995, then was almost absent after the severe winter 1995/96, and since then gradually increased but remained rare relative to the two native barnacles, the intertidal Semibalanus balanoides (L.) and the subtidal Balanus crenatus (Bruguière), which are overlapping around low tide level (Luther 1977(Luther , 1987pers. obs.).…”

Section: Introductionmentioning

confidence: 99%

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Does climatic warming explain why an introduced barnacle finally takes over after a lag of more than 50 years?

et al. 2010

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Invading alien species may have to await appropriate conditions before developing from a rare addition to the recipient community to a dominance over native species. Such a retarded invasion seems to have happened with the antipodean cirripede crustacean Austrominius modestus Darwin, formerly known as Elminius modestus, at its northern range in Europe due to climatic change. This barnacle was introduced to southern Britain almost seven decades ago, and from there spread north and south. At the island of Sylt in the North Sea, the first A. modestus were observed already in 1955 but this alien remained rare until recently, when in summer of 2007 it had overtaken the native barnacles Semibalanus balanoides and Balanus crenatus in abundance. At the sedimentary shores of Sylt, mollusc shells provide the main substrate for barnacles and highest abundances were attained on mixed oyster and mussel beds just above low tide level. A. modestus ranged from the upper intertidal down to the subtidal fringe. Its realized spatial niche was wider than that of the two natives. We suggest that at its current northern range in Europe a long series of mild winters and several warm summers in a row has led to an exponential population growth in A. modestus.

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Does climatic warming explain why an introduced barnacle finally takes over after a lag of more than 50 years?

et al. 2010

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“…S. balanoides is capable of oxygen uptake from air and is tolerant to moderate desiccation stress, while B. crenatus is not able to survive long periods of emergence. B. crenatus may outcompete S. balanoides subtidally due to lower mortality, faster growth rates and a stronger attachment to the substrate (Meadows 1969;Luther 1987). Additionally, the calcareous base of B. crenatus may be an advantage when used to lever or push off individuals of S. balanoides, which have a membranous base (Meadows 1969).…”

Section: Discussionmentioning

confidence: 99%

Predation on barnacles of intertidal and subtidal mussel beds in the Wadden Sea

Buschbaum

2002

Helgol Mar Res

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Balanids are the numerically dominant epibionts on mussel beds in the Wadden Sea. Near the island of Sylt (German Bight, North Sea), Semibalanus balanoides dominated intertidally and Balanus crenatus subtidally. Field experiments were conducted to test the effects of predation on the density of barnacle recruits. Subtidally, predator exclusion resulted in significantly increased abundances of B. crenatus, while predator exclusion had no significant effects on the density of S. balanoides intertidally. It is suggested that recruitment of B. crenatus to subtidal mussel beds is strongly affected by adult shore crabs (Carcinus maenas) and juvenile starfish (Asterias rubens), whereas recruits of S. balanoides in the intertidal zone are mainly influenced by grazing and bulldozing of the very abundant periwinkle Littorina littorea, which is rare subtidally. Thus, not only do the barnacle species differ between intertidal and subtidal mussel beds, but the biotic control factors do so as well.

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“…The species S. balanoides is hermaphroditic and viviparous, and breeds once a year (Barnes 1989(Barnes , 1992. In the study area breeding occurs from March to May (Luther 1987). Larval release has been shown to be synchronized with a diatom bloom in the water column (Barnes 1962).…”

Section: Barnacle Zonation On M Edulis Shellsmentioning

confidence: 99%

Selective settlement of the barnacle Semibalanus balanoides (L.) facilitates its growth and reproduction on mussel beds in the Wadden Sea

Buschbaum

2001

Helgoland Marine Research

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On the unstable sedimentary tidal flats of the Wadden Sea, a suitable attachment substrate for sessile organisms is generally lacking. Epibenthic mussel beds (Mytilus edulis L.) provide the only and strongly limited settlement sites available for the barnacle, Semibalanus balanoides (L.). Field investigations showed that barnacles were non-randomly distributed within a mussel bed. They preferentially occurred near the siphonal apertures of living mussels but rarely grew on dead mussels or shell fragments. Field experiments revealed that this was due to selective settlement of barnacle cyprid larvae. Growth of barnacles was significantly higher upon living mussels than on empty mussel shells. Moreover, a higher reproductive output was obtained by individuals on living mussels which produced twice as many nauplii larvae than barnacles attached to empty shells. This study shows that selective settlement of S. balanoides cyprid larvae on living mussels is adaptive with respect to individual fitness.

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Seepocken der deutschen Küstengewässer

Cited by 20 publications

References 92 publications

Does climatic warming explain why an introduced barnacle finally takes over after a lag of more than 50 years?

Does climatic warming explain why an introduced barnacle finally takes over after a lag of more than 50 years?

Predation on barnacles of intertidal and subtidal mussel beds in the Wadden Sea

Selective settlement of the barnacle Semibalanus balanoides (L.) facilitates its growth and reproduction on mussel beds in the Wadden Sea

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