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Gätje, Christiane; Reise, Karsten

doi:10.1007/978-3-642-58751-1_3

Cited by 3 publications

(4 citation statements)

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“…The salinity in the area is documented to range between 30 and 32 psu, and in general, mean water temperature is 14°C in summer and 5°C in winter. Further detailed information about size, hydrography, geology, sediments and biota of the List tidal basin are available from Reise (1985) and Gätje and Reise (1998).…”

Section: Methodsmentioning

confidence: 99%

“…However, Diederich (2006) also reported that adult oysters did not suffer from the cold winter. Reise (1998) documented that about 66% of the oysters in the List tidal basin (about 8 oysters/m 2 on blue mussel beds in 1995) survived the ice winter in 1995/1996 with more than 60 days with temperatures below freezing. Experiments with juvenile oysters revealed high mortalities ([95%) after 3-7 weeks in water temperatures of 3°C (Child and Laing 1998).…”

Section: Methodsmentioning

confidence: 99%

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High mortality of Pacific oysters in a cold winter in the North-Frisian Wadden Sea

2011

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

High mortality of Pacific oysters in a cold winter in the North-Frisian Wadden Sea

2011

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“…In the 20th century, mean air and water temperatures were 8.4°and 9.0°C (summer 13.7°C and winter 5.3°C), respectively. For further information about the area see Gätje and Reise (1998).…”

Section: Study Area and Experimental Sitesmentioning

confidence: 99%

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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“…Local riverine discharge is estimated to be 0.1 % of the total water input. Tides are semidiurnal, with a range of about 2 m. At mean low tide, 33 % of the bight is exposed, 10 % of the remainder comprises deep channels with a maximum depth of 40 m, and 57 % is a shallow subtidal area with depths less than 5 m (Gätje and Reise, 1998;Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

An evaluation of long-term physical and hydrochemical measurements at the Sylt Roads Marine Observatory (1973–2019), Wadden Sea, North Sea

Rick

Scharfe²,

Romanova³

et al. 2023

Earth Syst. Sci. Data

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Abstract. The Sylt Roads pelagic time series covers physical and hydrochemical parameters at five neighboring stations in the Sylt–Rømø bight, Wadden Sea, North Sea. Since the beginning of the time series in 1973, sea surface temperature (SST), salinity, ammonium, nitrite, nitrate, and soluble reactive phosphorus (SRP) have been measured twice a week. The other parameters were introduced later (dissolved silicate (Si) since 1974, pH since 1979, dissolved organic nitrogen (DON) since 1996, dissolved organic phosphorus (DOP) since 2001, chlorophyll a since 1979, and suspended particulate matter (SPM) since 1975), and in the case of dissolved oxygen, were already discontinued (1979–1983). In the years 1977, 1978, and 1983, no sampling took place. Since the start of the continuous sampling in 1984, the sea surface temperature in the bight has risen by +1.11 ∘C, with the highest increases during the autumn months, while the pH and salinity decreased by 0.23 and 0.33 units, respectively. Summer and autumn salinities are generally significantly elevated compared to spring and winter conditions. Dissolved nutrients (ammonium, nitrite, nitrate, and SRP) have displayed periods of intense eutrophication (1973–1998) and de-eutrophication since 1999. Silicate has shown significantly higher winter levels since 1999. Interestingly, phytoplankton parameters did not mirror these large changes in nutrient concentrations, as a seasonal comparison of the two eutrophication periods showed no significant differences with regard to chlorophyll a. This phenomenon might be triggered by an important switch in nutrient limitation during the time series. With regard to nutrients, the phytoplankton was probably primarily limited by silicate until 1998, while, since 1999, the SRP limitation has become increasingly important. All data are available in Rick et al. (2017b–e, 2020a–o) from https://doi.org/10.1594/PANGAEA.150032, https://doi.org/10.1594/PANGAEA.873549, https://doi.org/10.1594/PANGAEA.873545, https://doi.org/10.1594/PANGAEA.873547, https://doi.org/10.1594/PANGAEA.918018, https://doi.org/10.1594/PANGAEA.918032, https://doi.org/10.1594/PANGAEA.918027, https://doi.org/10.1594/PANGAEA.918023, https://doi.org/10.1594/PANGAEA.918033, https://doi.org/10.1594/PANGAEA.918028, https://doi.org/10.1594/PANGAEA.918024, https://doi.org/10.1594/PANGAEA.918034, https://doi.org/10.1594/PANGAEA.918029, https://doi.org/10.1594/PANGAEA.918025, https://doi.org/10.1594/PANGAEA.918035, https://doi.org/10.1594/PANGAEA.918030, https://doi.org/10.1594/PANGAEA.918026, https://doi.org/10.1594/PANGAEA.918036, and https://doi.org/10.1594/PANGAEA.918031.

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Abstrakt

Cited by 3 publications

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High mortality of Pacific oysters in a cold winter in the North-Frisian Wadden Sea

High mortality of Pacific oysters in a cold winter in the North-Frisian Wadden Sea

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

An evaluation of long-term physical and hydrochemical measurements at the Sylt Roads Marine Observatory (1973–2019), Wadden Sea, North Sea

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