800 E. Biological Oceanography ()LR ( 19821 29 (12)

exchange. Mar. Sci. Inst., Univ. of Calif., Santa Barbara, Calif. 93106, USA. (mjj)

82:6275 Dring, M.J. and F.A. Brown, 1982. Photosynthesis of

intertidal brown algae during and after periods of emersion: a renewed search for physiological causes of zonation. Mar. Ecol.-Prog. Set., 8(3): 301-308.

CO2-exchange of emersed plants and O2-exchange of submersed plants were measured in 5 species of brown algae from different tidal heights in Ireland and Helgoland. The photosynthesis of emersed fucoids and Laminaria digitata increased as up to 25% of tissue water was lost, but then declined with further desiccation. Recovery from severe desicca- tion took ~ 2 h in all species, regardless of their typical position on the shore, but the extent of recovery from a given degree of desiccation was greater in upper shore species. It is in the extent of recovery of photosynthesis after desiccation that intertidal brown algae show the clearest correlation with their heights in the zonation pattern on European shores. Dept. of Bot., The Queen's Univ., Belfast BT7 INN, Northern Ireland.

82:6276 Fry, Brian, R.S. Scalan, J.K. Winters and P.L.

Parker, 1982. Sulphur uptake by salt grasses, mangroves, and seagrasses in anaerobic sedi- ments. Geochim, cosmochim. Acta, 46(6):1121- 1124.

Stable S isotope analyses show that estuarine plants rooted in anoxic sediments incorporate substantial amounts of 34S-depleted sulfides, or oxidation prod- ucts thereof. In roots, this incorporation predomi- nates over sulfate uptake from interstitial water. Either the plants incorporate normally toxic sulfides, or they are creating and using a specialized nutrient pool of oxidized sulfides at the root-sediment interface. Harbor Br. Fdn., Rt. 1, Box 196, Fort Pierce, Fla. 33450, USA.

82:6277 Kuwabara, J.S., 1982. Micronutrients and kelp

cultures: evidence for cobalt and manganese deficiency in southern California deep seawater. Science, 216(4551): 1219-1221.

Seawater collected at a depth of 300 m off Newport Bay, California, appears to be deficient in Co and Mn and to contain toxic (growth-inhibiting) con- centrations of Cu and Zn, based on the growth of kelp (Macrocystis pyrifera) gametophytes. W.M. Keck Engrg. Labs., Calif. Inst. of Tech., Pasadena, Calif. 91125, USA. (mjj)

82:6278 Rosenberg, G. and J. Ramus, 1982. Ecological

growth strategies in the seaweeds Gracilaria follifera (Rhodophyceae) and Ulva sp. (Chloro- phyceae): photosynthesis and antenna composi- tion. Mar. Ecol,-Prog. Set,, 8(3):233-241. Dept. of Biol., Dalhousie Univ., Halifax, NS, B3H 4J1, Canada.

82:6279 Yarish, C. and P. Edwards, 1982. A field and cultural

investigation of the horizontal and seasonal distribution of estuarine red algae of New Jersey. Phvcologia, 21(2):112-124.

Laboratory Bostrychia radicans had a higher salinity optimum which corresponded to its greater abun- dance near the estuary's mouth; cultured Caloglossa leprieurii and Polysiphonia subtilissima exhibited less salinity tolerance and were found near the estuary's head. Correlation of temperature growth optima in culture with the seasonal occurrence of the 3 species during the warmer months suggests they are 'warm- water eurythermal algae of tropical Caribbean affinity.' Biol. Sci. Group, Univ. of Connecticut, Scofieldtown Rd., Stamford, Conn. 06903, USA. (ahm)

E270. Microphytes (coccolithophores, dia- toms, flagellates, etc.)

82:6280 Abe, T.H. and Minoru Saito (Ms. preparation), 1981.

Studies on the Family Peridinidae: an unfinished monograph of the armoured Dinoflagellata. Publs Seto mar. biol. Lab., (Spec. Publ. Ser.)6:412pp.

This 412-page effort collects writings prepared by Dr. Ab6, prior to his death in 1971, concerning his research on the Family Peridinidae in the areas of protozoan morphology and systematics. In his work on armoured dinoflagellates, he emphasized the 'structural relations of the thecal plates of the ventral area encircling the flagellar pore.' Concluding that the ventral area plate pattern was significant in the classification of this group, he began the needed reclassification, working on the genus Peridinium. Includes many drawings and a species index. Saito: Yokohama Natl. Univ., Japan. (ahm)

82:6281 Collos, Yves, 1982. Transient situations in nitrate

assimilation by marine diatoms. 2. Changes in nitrate and nitrite following a nitrate perturbation. Limnol. Oceanogr., 27(3):528-535. Stat. Mar. d'Endoume, Lab. d'Oceanogr., 13288 Marseille Cedex 9, France.