{"title":"Comparison of the different methods for the recovery of suspended matter from estuarine waters: Deposition, filtration and centrifugation; Consequences for the determination of some heavy metals","authors":"H. Etcheber, J.M. Jouanneau","doi":"10.1016/S0302-3524(80)80018-1","DOIUrl":"10.1016/S0302-3524(80)80018-1","url":null,"abstract":"<div><p>Suspended materials are the main scavengers of particulate metal elements in estuaries. Because metal content evolves extensively in time and space, many samples are required to gain an understanding of this problem. The recovery of suspended matter raises many difficulties according to the environment and to the nature of the analysis to be made.</p><p>The authors have compared the advantages and disadvantages of the three most common methods of recovery: deposition, filtration and centrifugation used on samples from the Gironde estuary.</p><p>It appears that filtration is not the only usable method, in spite of the certainty that recovery is best by this method. On the one hand, recovery by deposition is satisfactory in cases of floculation and high turbidity; on the other hand, in zones of low turbidity, centrifugation—because of rapid functioning and good recovery rate—is reliable enough for the determination of several elements.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 701-707"},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0302-3524(80)80018-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81225356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sally L. Richardson , Joanne L. Laroche , Michael D. Richardson
{"title":"Larval fish assemblages and associations in the north-east Pacific Ocean along the Oregon coast, winter-spring 1972–1975","authors":"Sally L. Richardson , Joanne L. Laroche , Michael D. Richardson","doi":"10.1016/S0302-3524(80)80017-X","DOIUrl":"10.1016/S0302-3524(80)80017-X","url":null,"abstract":"<div><p>Consistent patterns of larval fish distributions were found to occur along the Oregon coast between the Columbia River and Cape Blanco during winter-spring months for the years 1972–1975. Six data sets from March 1972, April 1972, March 1973, April 1973, March 1974 and March 1975 were analyzed using the pattern recognition techniques of numerical classification. Data included 306 bongo net samples containing 34 029 larval fish in 93 taxa. Coastal, transitional, and offshore assemblages (station groups) were present in each of the sampling periods. The region of transition from coastal to offshore assemblages roughly paralleled the shelf-slope break. Coastal and offshore species associations (species groups) were also always present. Species in the coastal and offshore groups never co-occurred. The consistency of these patterns is probably related to the spawning location of adults and to the predominate longshore coastal circulation patterns.</p><p>Differences in the extent of offshore distribution of the coastal assemblages among years reflected differences in local coastal wind patterns. Differences in the dominant taxa and their relative abundances within assemblages may reflect variation in timing of spawning and survival of larvae in the planktonic phase.</p><p>Despite the differences, the persistent occurrence of three major assemblages, coastal, transitional and offshore, and three major species groups from year to year supports the idea that these patterns of larval fish distributions are constant features over the continental shelf region off Oregon. The constancy of these patterns over four years suggests that transport may not be a major cause of larval fish mortality and recruitment failure in this region.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 671-699"},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0302-3524(80)80017-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74244550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Thermodynamics of Sea Water. Part I, J.V. Leyendekkers (Ed.). Marcel Dekker, New York (1976), xi+496, Sw.Fr.81.00 or £21.25","authors":"M. Whitfield","doi":"10.1016/S0302-3524(80)80022-3","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80022-3","url":null,"abstract":"","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78927332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sea Squirts of the Atlantic Continental Shelf from Maine to Texas, H.H. Plough (Ed.). The Johns Hopkins University Press, Baltimore, Maryland (1978), 118, £14.00","authors":"G. Paterson","doi":"10.1016/S0302-3524(80)80021-1","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80021-1","url":null,"abstract":"","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77974834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jose Ruben Lara-Lara , Saul Alvarez-Borrego , Lawrence F. Small
{"title":"Variability and tidal exchange of ecological properties in a coastal lagoon","authors":"Jose Ruben Lara-Lara , Saul Alvarez-Borrego , Lawrence F. Small","doi":"10.1016/S0302-3524(80)80014-4","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80014-4","url":null,"abstract":"<div><p>Sea level, current velocity, temperature, salinity, oxygen, inorganic phosphate, chlorophyll <em>a</em>, seston and its organic and inorganic fractions, phytoplankton species abundance, particulate organic carbon and nitrogen, and primary productivity time series were generated for the mouth of San Quintin Bay, Baja California, Mexico, for 18 days during the summer of 1977. This was done to elucidate the main factors that cause variability of these ecological properties and to frame some generalizations about the offshore waters during the summer season. San Quintin Bay is of considerable interest because of its developing mariculture potential, and because it is representative of a type of coastal lagoon that is rapidly being latered by man's activities.</p><p>Alternation of upwelling events was the main cause of variability for all properties except temeprature. Semi-diurnal tides were the main cause of variability for temeprature. Conservative variables such as temperature and salinity had a semi-diurnal component greater than the diurnal one. Most non-conservative variables (chlorophyll <em>a</em> and phosphate concentrations, for example) had equal diurnal and semi-diurnal variability components, due to biological processes that strongly depend on the solar radiation cycles. The relationship between variability components for oxygen was intermediate to those relationships for the conservative and non-conservative variables. Seston variability was mainly due to turbulence induced by winds and tidal currents. Lack of correlation between particulate organic carbon and nitrogen, and the wide range of C:N ratios in particles, indicate that bay-derived seston of widely varying organic and inorganic content represents most of the suspended particulate matter.</p><p>Mean transports of all properties measured at the bay mouth, over the complete sampling period and within each upwelling event, were positive, indicating net movement into the bay. During the second upwelling event (the last 7 days of the sampling period) mean fluctuation fluxes for temperature, oxygen and chlorophyll <em>a</em> at the bay mouth were significantly negative, indicating exports of these properties from the bay. For all other variables, and during the first upwelling period and the upwelling relaxation period, there were no significant fluctuation fluxes at the bay mouth.</p><p>Diatoms were always the most abundant phytoplankton group. Primary productivity was always greatest at the surface, with a mean value of 27 mg C m<sup>−3</sup> h<sup>−1</sup> through the sampling period. Maximum surface productivity values were obtained for the upwelling relaxation period (up to 44 mg C m<sup>−3</sup> h<sup>−1</sup>). A mean value of 122 mg C m<sup>−2</sup> h<sup>−1</sup> was found for the entire water column during the 18-day period. These values are comparable to the productivity maxima of other upwelling areas. The mean surface assimilation ratio was 6·6 mg C (mg chl <em>a","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 613-637"},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0302-3524(80)80014-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91725415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vertical zonation on rocky shores in the Severn estuary","authors":"C. Little, L. P. Smith","doi":"10.1016/S0302-3524(80)80016-8","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80016-8","url":null,"abstract":"","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"1 1","pages":"651-669"},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90293590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Removal of ‘soluble’ iron in the Potomac River estuary: Comments","authors":"E.R. Sholkovitz","doi":"10.1016/S0302-3524(80)80010-7","DOIUrl":"10.1016/S0302-3524(80)80010-7","url":null,"abstract":"<div><p>Eaton (1979) states that the removal of soluble Fe in the Potomac River estuary does not result from the coagulation of Fe-colloids by seawater cations but rather by the destabilizing action of “bacterial polymers’. The data of Eaton are used to demonstrate that the removal mechanism iss cation coagulation, the same process as observed in o'her estuaries.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 5","pages":"Pages 585-587"},"PeriodicalIF":0.0,"publicationDate":"1980-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0302-3524(80)80010-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85135252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Seasonal variation in species composition of recently settled fouling communities along an environmental gradient in the Indian River Lagoon, Florida","authors":"David Mook","doi":"10.1016/S0302-3524(80)80008-9","DOIUrl":"10.1016/S0302-3524(80)80008-9","url":null,"abstract":"<div><p>Monthly settlement of fouling organisms was monitored for one year along a gradient within the Indian River Lagoon from the Ft. Pierce Inlet, with relatively stable temperature and salinity regimes, to a point 16 km north of the Inlet where temperatures and salinities were more variable. More species of fouling organisms were found near the Inlet than at stations further away from the Inlet. More apparently stenotopic colonial species tended to dominate the fouling community near the Inlet, whereas further from the Inlet, dominant species were generally apparently eurytopic solitary forms.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 5","pages":"Pages 573-581"},"PeriodicalIF":0.0,"publicationDate":"1980-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0302-3524(80)80008-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82199973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}