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Glycollate concentrations in relation to hydrography in Liverpool Bay [Irish Sea]
1038
C. Chemical Oceanography
decreases with depth, and gradients in the adsorption coefficients and 226Ra/23°Th ratio are less marked than at Site M. Coll. of Oceanogr., Oregon State Univ., Corvallis, OR 97331, USA. 87:6800 Truglio, N.L. and V.P. Guinn, 1987. Elements very rapidly measurable by INAA [instrumental neutron activation analysis] in biological and environmental materials. J. radioanalyt, nucl. Chem., 110(1):41-45.
In tests of thirteen biological and eight environmental reference materials using the reactor flux INAA Advance Prediction Computer Program, 33 induced short-lived products were detected, representing 26 different elements. Analysis times were in the range of 1.5-192 seconds. Dept. of Chem., Univ. of Calif., Irvine, CA 92717, USA. (gsb)
C130. Organic compounds 87:6801 A1-Hasan, R.H. and G.E. Fogg, 1987. Glycolinte concentrations in relation to hydrography in Liverpool Bay [Irish Sea]. Mar. Ecol.-Prog. Ser., 37(2-3):305-307. Dept. of Botany and Microbiol., Kuwait Univ., P.O. Box 5969, Kuwait. 87:6802 Brown, J.W., 1987. Studies of humic and fulvic acid dynamics in coastal marine waters of south Florida. Mar. environ. Res., 21(3):163-174.
Humic and fulvic acid concentrations were monitored over a two-year period in different areas of Florida and Biscayne bays. Dramatic fluctuations in humic substances were observed in all coastal areas. In both bays these fluctuations appeared to follow the artificially-controlled input to water from the south Florida mainland. The ratios of FA to HA varied dramatically between terrestrially-influenced and oligotrophic marine environments. In all marine locations studied, coarse particulate humic substances were low in comparison to the dissolved component of this chemical class. Div. of Endocrinol, and Metabolism, Gen. Med. Res., V.A. Med. Center, Miami, FL 33149, USA. 87:6803 Cabaniss, S.E. and M.S. Shuman, 1987. Synchronous flmn'eacence spectra of natm'al wateam. Tracing sources of dissolved organic matter. Mar. Chem., 21(1):37-50.
The fluorescence of North Carolina river samples observed simultaneously by scanning excitation and
OLR ( 1987134 (12)
emission wavelengths at a fixed wavelength difference of 25 nm produced synchronous spectra characteristic of each sample's dissolved organic matter. Examination of the spectra of two river samples for pH, copper, magnesium and ferric iron effects revealed that the metals affect only fluorescence intensity whereas pH alters both intensity and spectral shape. Mixtures of up to four rivers were resolved using linear regression analysis and the synchronous spectrum of each component in the mixture. Shuman: Dept. of Environ. Sci. and Engng, Univ. of North Carolina, Chapel Hill, NC 27514, USA. 87:6804 Grimalt, Joan and Joan Albaig6s, 1987. Sources and occurrence of Cu-Cz2 n-alimue distributions with even carbon-number prefm'ence in sedimentary environments. Geochim. cosmochim. Acta, 51(6): 1379-1384.
The occurrence of C~2-C22 n-alkanes with a strong even carbon-number preference is reported in recent and Miocene sediments, encompassing marine and freshwater systems deposited under oxic and anoxic conditions. These n-alkanes can be found in a wider sedimentary environment than those previously described. In some cases a parallel distribution of Cj4-C20 n-alk-l-enes occurs. Various biological sources, including both marine and freshwater bacteria as well as fungi and yeast species, are suggested to account for such distributions. Dept. of Environ. Chem., CID-CSIC, E-08034, Barcelona, Spain. 87:6805 Nishimura, Mitsugu and E.W. Baker, 1987. Compositional ~ of non-solvent extractable fatty acids from recent marine sediments deposRed in differing eavironments. Geochim. cosmochim, dcta, 51(6): 1365-1378. Five sediment samples from a variety of North American continental shelves were analyzed for fatty acids (FAs) in the solvent-extractable (SOLEX) lipids as well as four non-solvent extractable (NONEX) lipids. The procedure included very mild acid treatment, HF digestion and saponification of the sediment residue after solvent extraction. Distribution and composition of SOLEX FAs were divided into three different groups, indicating difference of biological sources, diagenetic factors and processes. Compositions of the corresponding NONEX FAs after acid treatment were very similar. Findings implied that most NONEX FAs here are derived from living organisms, and are more resistant to biodegradation than previously thought.
C. Chemical Oceanography
decreases with depth, and gradients in the adsorption coefficients and 226Ra/23°Th ratio are less marked than at Site M. Coll. of Oceanogr., Oregon State Univ., Corvallis, OR 97331, USA. 87:6800 Truglio, N.L. and V.P. Guinn, 1987. Elements very rapidly measurable by INAA [instrumental neutron activation analysis] in biological and environmental materials. J. radioanalyt, nucl. Chem., 110(1):41-45.
In tests of thirteen biological and eight environmental reference materials using the reactor flux INAA Advance Prediction Computer Program, 33 induced short-lived products were detected, representing 26 different elements. Analysis times were in the range of 1.5-192 seconds. Dept. of Chem., Univ. of Calif., Irvine, CA 92717, USA. (gsb)
C130. Organic compounds 87:6801 A1-Hasan, R.H. and G.E. Fogg, 1987. Glycolinte concentrations in relation to hydrography in Liverpool Bay [Irish Sea]. Mar. Ecol.-Prog. Ser., 37(2-3):305-307. Dept. of Botany and Microbiol., Kuwait Univ., P.O. Box 5969, Kuwait. 87:6802 Brown, J.W., 1987. Studies of humic and fulvic acid dynamics in coastal marine waters of south Florida. Mar. environ. Res., 21(3):163-174.
Humic and fulvic acid concentrations were monitored over a two-year period in different areas of Florida and Biscayne bays. Dramatic fluctuations in humic substances were observed in all coastal areas. In both bays these fluctuations appeared to follow the artificially-controlled input to water from the south Florida mainland. The ratios of FA to HA varied dramatically between terrestrially-influenced and oligotrophic marine environments. In all marine locations studied, coarse particulate humic substances were low in comparison to the dissolved component of this chemical class. Div. of Endocrinol, and Metabolism, Gen. Med. Res., V.A. Med. Center, Miami, FL 33149, USA. 87:6803 Cabaniss, S.E. and M.S. Shuman, 1987. Synchronous flmn'eacence spectra of natm'al wateam. Tracing sources of dissolved organic matter. Mar. Chem., 21(1):37-50.
The fluorescence of North Carolina river samples observed simultaneously by scanning excitation and
OLR ( 1987134 (12)
emission wavelengths at a fixed wavelength difference of 25 nm produced synchronous spectra characteristic of each sample's dissolved organic matter. Examination of the spectra of two river samples for pH, copper, magnesium and ferric iron effects revealed that the metals affect only fluorescence intensity whereas pH alters both intensity and spectral shape. Mixtures of up to four rivers were resolved using linear regression analysis and the synchronous spectrum of each component in the mixture. Shuman: Dept. of Environ. Sci. and Engng, Univ. of North Carolina, Chapel Hill, NC 27514, USA. 87:6804 Grimalt, Joan and Joan Albaig6s, 1987. Sources and occurrence of Cu-Cz2 n-alimue distributions with even carbon-number prefm'ence in sedimentary environments. Geochim. cosmochim. Acta, 51(6): 1379-1384.
The occurrence of C~2-C22 n-alkanes with a strong even carbon-number preference is reported in recent and Miocene sediments, encompassing marine and freshwater systems deposited under oxic and anoxic conditions. These n-alkanes can be found in a wider sedimentary environment than those previously described. In some cases a parallel distribution of Cj4-C20 n-alk-l-enes occurs. Various biological sources, including both marine and freshwater bacteria as well as fungi and yeast species, are suggested to account for such distributions. Dept. of Environ. Chem., CID-CSIC, E-08034, Barcelona, Spain. 87:6805 Nishimura, Mitsugu and E.W. Baker, 1987. Compositional ~ of non-solvent extractable fatty acids from recent marine sediments deposRed in differing eavironments. Geochim. cosmochim, dcta, 51(6): 1365-1378. Five sediment samples from a variety of North American continental shelves were analyzed for fatty acids (FAs) in the solvent-extractable (SOLEX) lipids as well as four non-solvent extractable (NONEX) lipids. The procedure included very mild acid treatment, HF digestion and saponification of the sediment residue after solvent extraction. Distribution and composition of SOLEX FAs were divided into three different groups, indicating difference of biological sources, diagenetic factors and processes. Compositions of the corresponding NONEX FAs after acid treatment were very similar. Findings implied that most NONEX FAs here are derived from living organisms, and are more resistant to biodegradation than previously thought.