Skip to main content
Fig. 9 | Helgoland Marine Research

Fig. 9

From: Variability in annual recruitment success as a determinant of long-term and large-scale variation in annual production of intertidal Wadden Sea mussels (Mytilus edulis)

Fig. 9

Mytilus edulis. A comparison between results of independent mussel stock assessments on Balgzand by NIOZ and RIVO. Horizontal axis: 15-station means by the authors (NIOZ) in g AFDM m−2, samples taken in March of each year. Vertical axis: (solid symbols) means of ∼70 stations sampled by RIVO in spring of 16 years (1990–2005), and (open symbols) results of specific mussel bed assessments by RIVO in spring of 8 years (1998–2005). The RIVO data were given in whole-mussel weights and converted to AFDM by multiplication by 0.07 (assuming conversion factors of 0.28 from total to flesh weight, and 0.25 from fresh flesh to ash-free dry weight). The line indicates exactly equal estimates

Back to article page

Helgoland Marine Research

ISSN: 1438-3888

Contact us