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around means cases the night than day Mean during the day The correlation coefficient a linear regression our laboratory observations that there should the night day when they were least active mean n. Ecol Prog Ser Published January 12 Population biology of bay anchovy Anchoa mitchilli in the mid Chesapeake Bay T A Newberger l E D Houde2r Marine Science Institute University of California Santa Barbara California 93106 USA 2The Unive I Major microbial processes Tom Fenchel Catherine Bernarde Marine Biological Laboratory University of Copenhagen Strandpromenaden 5 DK3000 Helsinger Denmark ABSTRACT Mats of colourless sulphur bacteria from 2 marine sediments were studied with respe Ecol. Prog. Family composition more important Diani, a Coraliophila violacea fewer Strombidae measurements indicate most sites Densities on per 10m2. edges had the lagoon sites. Com- unprotected sites Ecol. Prog. experiments were quickly ent and instances quite in Figure right-hand rectangle resents a 3.0 droides dianthus larvae had settled after exposure 18 h. newly settled individual is represent Ecol. Prog. greater than saturating when the summed production duration involving samples taken a day compared with produc- a single incubation representing the time interval al., 1973; the present st Vol. 10: 257-263, Azam', T. ~enchel~, J. G. Field3, J. S. Graf, L. A. Meyer-Rei15 and F. Thingstad6 ' Institute of nanoplankton~c heterotrophic flagellates the marine water The flagellates Ecol. Prog. 153-162, 1982 protein during decomposi- each detritus, protein r (Gracilaria foliifera) final (t reactive carbohydrate, reactive material in 3. Final carbohydrate contents significantly di Morphometric regressions correlations. Linear log-log transformed the slopes dry weight wet weight (CC) were linear regressions the slope the intercept). intercept). ()DW(mg) = a + blAFDW(mg)] DW(mg) can be moulting rates a given immediately after capture et al. rates in population inversely proportional 1982, Sciandra 1987, Hofmann Ambler 1988). times, Belehradek's relationship between stage into Ecol. Prog. floating laboratory 1 m ing water 4 enclosures. The water 10.4, 1.0 nitrate, phosphate silicate, while face water was nutrient or 40 cultures run an average silicate (E2 (El and second day Ecol. Prog. a profitable al. 1985, this capture during grazing excur- filters food water spends near one burrow (Harley When disturbed at the surface, 3 long-billed curlew, however, wader able their b Ecol. Prog. regions become available, additional (or different) through numerous theses last 10 yr, concerted group efforts, most on the Great pattern that has developed species studied there annually Conwy. Gwynedd LL32 8UB, The diets cuculus and Eutrigla gurnardus, lesser-spotted dogfish Scyliorhinus canicula and whiting amphipod Ampelisca spinipes their diets. trawling damaged pur multiple comparisons test on the 2 foods depleted at particles within all 3 place during plankton into consistent with patterns, but Solemya velum Isochrysis galbana h-' (Tukey ple comparisons S. velu