Table 1 Data sources for the documentation of sites of intertidal blue mussel (Mytilus edulis) beds at the coast of Lower Saxony, southern North Sea (state 2003)
Methods | Year of survey | Scale | References |
|---|---|---|---|
Remote sensing | 1966 | 1:50,000 | archive of the NLÖ-FSK |
1975 | 1:52,000 | archive of the NLÖ-FSK; Wurster and Wanger Watt: Dijkema et al. (1989) | |
1980 | 1:50,000 | archive of the NLÖ-FSK | |
Remote sensing and field investigations | 1989/1991 | 1:28,000 | Michaelis et al. (1995) |
1994 | 1:28,000 1:15,000 | Zens et al. (1997) | |
1996 | Herlyn and Millat (2004) | ||
Spring | 1:15,000 | ||
Autumn | 1:15,000 | ||
1997 | 1:15,000 | Herlyn and Millat (2004) | |
1999 | 1:15,000 | Herlyn and Millat (2004) | |
2000 | 1:15,000 | Herlyn and Millat (2004) | |
2001 | 1:15,000 | Herlyn and Millat (2004) | |
2002 | 1:15,000 | Herlyn and Millat (2004) | |
2003 | 1:15,000 | Herlyn and Millat (2004) | |
Field investigations | 1950/1951 | – | |
1952 | – | Krause (1953): Baltrum | |
1953 | – | Krause (1954): Langeoog | |
1958 | – | Müller (1959): Bensersiel | |
1960/1961 | – | Müller (1964): Dornumersiel | |
1964 | – | Michaelis (1970): Minsener Oog | |
1965 | – | Michaelis (1968): NE Wurster Watt | |
1967 | – | Michaelis (1969): N Wurster Watt | |
1969 | – | Michaelis (1976): W Wurster Watt | |
1972 | – | Hauser and Michaelis (1975): Großer Knechtsand | |
1973/1975 | – | Meyer and Michaelis (1980): Hoher Weg | |
1975/1977 | – | Michaelis (1987): Jadebusen | |
1981 | – | Obert (1982): Borkum | |
1986 | – | Grotjahn (1990): Spiekeroog | |
1987 | – | Obert and Michaelis (1991): Norderney |