894 E. Biological Oceanograph3 OLR t 1981 ~ 28 112

81:6755 Ichikawa, Ryushi and Shigeru Ohno, 198t. U ~ m

content in n ~ i n e f i J . Bull. japan. Soc. scient. Fish., 47(2):p.289.

Pertinent to impact assessment of the deep-sea disposal of radioactive wastes, an average U con- centration of 10 -3 mg/kg was determined for Japa- nese fish species; the concentration factor was estimated at ~3.10 -~, considerably less than the '10' reported by Thompson et al. (1972). National Inst. of Radiological Sci.. Chiba 260. Japan. (izs)

81 :67~ Kemp, M.V. and J.P. Wightman, 1981. ~ of

2,4-D aml D k a m k wl~ d~t la ami ¢httman. Va J. Sci., 32(2):34-37. Dept. of Chem., Bethany College, Bethany, W. Va.. USA.

81:6757 Klumpp, D.W. and P.J. Peterson, 1981. Chemical

characler is t~ of arsenic in a marine food chain. Mar. Biol., 62(4):297-305.

Chemical forms of arsenic in a macroalgal-snail food chain were characterized using differential extrac- tion and chromatography. The algae (Fucus spiral&) assimilated primarily (60%) a lipid-soluble com- pound whereas the snails (Littorina littoralis --, Nucella lapillus) produced a water-soluble organo- arsenic compound. Sch. of Botany, Univ. of Mel- bourne, Parkville, Vict. 3052, Australia. (mjj)

81:6758 Maher, W.A., 1981. ~ Of ~ and

methylated arseaic species In marine eqmflsms and sediments. Analvtica chim. Acta, 126:157- 165.

Isolated by solvent extraction, the As species were chromatographically separated and determined by arsine generation; results are presented for some macroalgae, Mercenaria mercenaria and estuarine sediments. Dept. of Oceanog., Univ. of Southamp- ton, UK. (sir)

81:6759 Miyazaki, Tomoyuki, Sciji

Tatsunori Yama~i'shi,

from Tekyo BaY, Bull. environ. Con- tamin. Toxicol~ 26(5):577-584. Tokyo Met. Res. Lab. of Public Health, 24-1, 3-chome, Hyaku- nincho, Shinjuku-ku, Tokyo 160, Japan,

81:6760 Newell, S.Y., K.E. Cook~y, J.W. Fell, I.M. Master,

C. Miller and M.A. Walter, 1981. Acute

of an ~ ~ on microbes and small i n v ~ of a mangrove esmm-y. Archs environ. Contamin. Toxicol.. 10(4):427-435,

Fungi, nitrogen-fixing microbes, and representauve meiofauna and zooplankton (exposed 24-72 hr to lOJ-103 ppb fenthion) showed no "acute lethal_ growth-inhibiting, or process-disrupting effects' for exposures <500 ppb, Univ. of Georgia Mar. Inst. Sapelo Island. Ga. 31327. USA. lahm)

81:6761 Raffaelli, D.G. and C.F. Mason. 1981. Pollution

monitoring with melofauna, using the ratio of to eopepods. Mar. Pollut. Bull., 1215):

158-163.

Intertidal ratios increased with decre&sing particle size: ratios from polluted sites were extremely high. Sublittoral ratios increased with depth. This ratio may have potential for monitoring organic pollution of sandy beaches. Dept. of Zool.. Univ. of Aberdeen. Aberdeen AB9 2TN. UK.

81:6762 Schulz-Baldes, M. and L. Cheng, 1981. Flux of

radioactive cadmium thronsh the sea-skater Halo- /~qtes (Heteroptera: Gerridae). Mar. Biol., 62(2/3): 173-177.

Marine sea-skaters seem to have an unusual affinity for Cd, accumulating it at a much greater rate than their freshwater counterparts. Experimental results are discussed in the context of Cd concentrations in open ocean Halobates populations. Inst. fur Meeres- forschung, 2850 Bremerhaven I. FRG. (slr)

81:6763 Thompson, G.B. and J. Ho. 1981. Some effects of

sewage discharge upon phytopinnkton in Hong Kong. Mar. Pollut. Bull.. 12(5):168-173.

Hong Kong's coastal waters constitute a transition from estuarine conditions in the west to more oceanic conditions in the east, with a major dis- charge of untreated sewage located mid-point. There was no evidence of reduction in taxonomic diversity in polluted areas except in summer, when the net phytoplankton was dominated by Chaetoceros spp. In autumn and early winter, Skeletonema costatum was abundant in central polluted areas. Fisheries Res. Station, Aberdeen, Hong Kong.

81:6764 van Es, F.B., M.A. van Arkel. L.A. Bouwman and

H.G.J. SchrOder, 1980. InlPaence of organic pollmton on b a c t e r ~ ~ and meinben- thk popuintlons in intertidal fiats of the UmUard