Life cycle and production of Nereis diversicolor O. F. Müller in the Ythan Estuary, Scotland

Structure and production of the benthic macroinvertebrate community in a shallow lagoon in the Bay of Cadiz

“…In these coastal ecosystems, previous estimates of P/B ratios for the macrobenthic community were variable, depending on factors such as the age structure of population~ and taxonomic group composition. On the whole, higher P/B values were obtained for populations dominated by younger individuals (Moller 1985), and for non-molluscan groups such as polychaetes and amphipods, while intermediate and low values were found for hydrobiid and bivalve species respectively (Chambers & Milne 1975, Warwick & Price 1975, Wolff & d e Wolf 1977, Bachelet et al 1980, Siegismund 1982, Moller 1985. In the community studied, the biomass was dominated by adult gastropods and bivalves, and this could explain the relatively low values of the P/B ratio.…”

Influence of Temperature and Salinity on Food Conversion and Growth of Different Nereis Species (Polychaeta, Annelida)

“…Consequences in nature may be found in regard to differences in final weight. Both N. succinea and N. diversicolor have a life span of about two years (Dales, 1951;Chambers and Milne, 1975;Neuhoff, 1977). The largest individuals of both species obsewed in Kiel harbour suggest that a final weight may be reached in the range of 2 g,,.…”

Feeding, growth and respiration in the polychaetes Nereis diversicolor (facultative filter-feeder) and N. virens (omnivorous)-a comparative study

“…Dry weight (WD, mg) was found to correlate with wet weight (Ww, mg) of Nereis diversicolor and N. virens according to the equations: WD = 0.124 W, , (r2 = 0.98, n = 65, range 25 to 100 mg dry wt) and WD = 0.1 19 Wo, (r2 = 0.97, n = 65, range 25 to 100 mg WD) respectively. The following equivalencies were used: 1 mg dry wt worm = 8 mg wet wt = 18.4 J (Chambers & Milne 1975); 1 m1 O2 = 19.88 J. The following relationship between Rhodomonas sp.…”