Plankton primary production in a tropical mangrve bay at the southwest coast of Thailand

Plankton primary production in a tropical mangrve bay at the southwest coast of Thailand

OLR(1979)26(12) E. Biological Oceanography 79:6181 Wium-Andersen, Soren, 1979. Plankton primary production in a tropical mangrove bay at the southwe...

87KB Sizes 0 Downloads 13 Views

OLR(1979)26(12)

E. Biological Oceanography

79:6181 Wium-Andersen, Soren, 1979. Plankton primary production in a tropical mangrove bay at the southwest coast of Thailand. Ophelia, 18(1): 53-60. Daily plankton primary production exhibited little seasonal variation and ranged between 560-2410 mgC m -2 day -~ with nannoplankton accounting for 3491% of the total; annual production was 468 gC m-2 An evaluation of the total production of the autotrophic components of a mangrove ecosystem is included. Freshwater Biological Laboratory, Copenhagen University, 51 Helsingersgade, DK-3400 Hillered, Denmark. (izs) 79:6182 Zeitzschel, Bernt, 1978. Why study phytoplankton? Monogr. oceanogr. Methodol., U.N., 6: 1-5. The importance of phytoplankton as primary producers in the ocean (15-18× 109 t of carbon/yr: Koblentz-Mishke et al. 1970) would be reason enough for study: its examination can also help identify 'natural regions' of the oceans and climatic changes in geologic historv, and has applications in aquaculture and pollution research, institut fiir Meereskunde an der Universit~it Kiel, Diisternbrooker Weg 20, 23 Kiel 1, F.R.G. (sir)

6. Microbiology (bacteria, fungi, etc.) 79:6183 Burnett, B. R., 1979. Quantitative sampling of microbiota of the deep-sea benthos. 11. Evaluation of technique and introduction to the biota of the San Diego Trough. Trans. Am. rnicrosc. Soc., 98(2): 233-242. Some of the microfauna (flagellates, amoebae, testacids, Foraminifera) and microflora (yeast-like cells, prokaryotes) appear to belong to major taxa not previously described. Techniques used for mounting, staining and clearing were tested using known organisms. Fragility was not a problem, but shrinkage averaging 70% and cellular distortion interfered with biomass estimation and identification. Figures include 30 microbiota micrographs. A-002, Scripps Institution of Oceanography, La Jolla, Calif. 92093, U.S.A. (mjj) 79:6184 Gareth Jones, E. B., P. Byrne and D. J. Alderman, 1968/71. The response of fungi to salinity. Vie Milieu, Suppl. 2: 265-280. Marine and terrestrial fungi from the Phycomycetes, Ascomycetes and Fungi lmperfecti were observed in a range of salinities; and the vegetative growth,

803

reproduction and spore germination responses evaluated. Results showed great adaptability on the part of fungi, and indicate that the effect of salinity on vegetative growth, reproduction and spore germination are critical criteria (as well as morphology and ecology) when determining whether a fungus is marine or terrestrial. Department of Biological Sciences, Portsmouth Polytechnic, England. (sir) 79:6185 Gotto, J. W., F. R. Tabita and Chase Van Baalen, 1979. Isolation and characterization of rapidlygrowing marine, nitrogen-fixing strains of bluegreen algae. Arehs Mierobiol., 121(2): 155-159. Five strains of marine heterocystous blue-green algae (genus Anabaena) isolated from shallow Texas bays and mud fiats had higher temperature optima (3542°C) and higher rates of growth and nitrogenase activity than those of commonly studied N-fixing bluegreen algae. Thus these strains may be useful physiological tools, and may be important contributors of combined N in bays and estuaries. Van Baalen: University of Texas, Marine Science Institute, Port Aransas Marine Laboratory, Port Aransas, Tex. 78373, U.S.A. (mjj) 79:6186 Hayasaka, S. S. and R. Y. Morita, 1979. Na +, K +, and nonspecifie solute requirements for induction and function of galactose active transport in an Antarctic psychrophilic marine bacterium. Appl. environ. Mierobiol., 37(6): 1166-1172. The specific Na ÷ requirement for induction was higher than that required for maximal uptake and growth, whereas the specific K ÷ requirement was the same. The inhibitory effect of suboptimal salinity on induction, uptake and growth was not completely osmotic in nature; this nonspecific solute requirement was greatest for induction. Department of Microbiology, Clemson University, Clemson, S.C. 29631, U.S.A. (mjj) 79:6187 Jorgensen, B. B., 1978. A comparison of methods for the quantification of bacterial sulfate reduction in coastal marine sediments. I. Measurement with radiotracer techniques. Geomierobiol. J., 1(1): 1 !-27. A radiotracer technique is described for measuring insitu rates of sulfate reduction. Multiple microliter portions of 35S-SO42- are injected into undisturbed sediment cores, and the amount of labelled sulfide produced is analyzed. 'This tracer method is experimentally compared with a method that mixes label into the sediment.' Institute of Ecology and Genetics, University of Aarhus, Ny Munkegade, DK8000 Aarhus C, Denmark. (mjj)