Estuarine and Coastal Marine Science最新文献

{"title":"Monitoring of Butyltin Compounds in the Aquatic Environments of the Philippines","authors":"M. Prudente","doi":"10.14203/MRI.V33I2.492","DOIUrl":"https://doi.org/10.14203/MRI.V33I2.492","url":null,"abstract":"A comprehensive perspective of Butyltin (BTs) contamination and its possible implications on the marine and coastal environments of the Philippines is presented using green mussels, marine mammals and skipjack tuna as bioindicators. BTs were detected in mussels from all the sampling locations investigated as part of the monitoring surveys under the Asia-Pacific Mussel Watch (APMW) Program conducted in the late 1990s. The BTs detected in green mussels collected in 1994, 1997 and 1998 from various aquaculture and coastal sites in the country were suggestive of considerable widespread pollution by BTs in the coastal waters. Among BTs, TBT was detected at all locations at relatively higher concentrations, whereas the concentrations of DBT and MBT were found to be at lower residual concentrations. This could be indicative that green mussels have limited abil- ity of metabolize TBT to DBT and MBT. It could also be suggestive of recent TBT inputs into the aquatic environments and the presence of sources along the coastal waters. Concentrations of BTs (MBTDBTTBT) in green mussels were reported up to 790 ng g � 1 wet weight in a site where intensive maritime activities are occurring. Mussels from rural areas contained TBT at lower proportions indicating that TBT usage as antifouling agents is minimal. Tolerable Average Residue Level (TARL) for seafood in the Philippines was estimated at 173 ng g � 1 wet weight for an average person weighing 60 kg. Concentrations of TBT or the sum of TBT and DBT in some green mussels analysed revealed that some values exceeded TARL level, which could suggest that hu- mans consuming this seafood from areas with high BTs contamination could be at risk from elevated exposure to BTs. BTs were likewise detected in skipjack tuna collected from the offshore waters of the Philippines, suggestive of the widespread contami- nation even in offshore waters. Considerable BTs levels (up to 220 ng g � 1 wet weight), with high percentages of BTs in total tin (∑Sn: inorganic tinorganic tin) were noted in the liver tissues. This finding indicates that the anthropogenic BTs represent the major source of Sn accumulation. On the other hand, relatively low concentrations of BTs were found in the liver of cetaceans from the coastal waters of the Philippines, which ranged at 42-98 ng g � 1 wet weight. Significantly lower hepatic BT concentra- tions in cetaceans in tropical waters were noted compared with those inhabiting temperate waters proximal to developed na- tions. This result could imply that, at present, usage of BTs in the Philippines is still minimal.","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"63 1","pages":"195-202"},"PeriodicalIF":0.0,"publicationDate":"2008-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84071922","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":"Variability and tidal exchange of ecological properties in a coastal lagoon","authors":"J. Lara-Lara, S. Álvarez-Borrego, L. Small","doi":"10.1016/S0302-3524(80)80014-4","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80014-4","url":null,"abstract":"","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"1 1","pages":"613-637"},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77566090","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":"","authors":"G.L.J. 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":"11 6","pages":"Pages 710-711"},"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)80021-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90028404","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":"A comparison of reproductive patterns in epifaunal and infaunal gammaridean amphipods","authors":"Robert F. Van Dolah,&nbsp;Edward Bird","doi":"10.1016/S0302-3524(80)80012-0","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80012-0","url":null,"abstract":"<div><p>Comparisons of egg size and number are made for 10 epifaunal and 16 infaunal species of shallow-water marine or estuarine gammaridean amphipods from the north-western Atlantic. Epifaunal species have significantly more, smaller eggs than infaunal species of the same size and geographic region. Strong latitudinal and seasonal effects are also evident. For several species, egg size increases and egg number decreases in populations at more northern latitudes and in populations breeding during colder seasons. The few exceptions to the above patterns may reflect unique differences in the biology of particular species. A hypothesis is proposed that adult mortality risk is correlated positively with egg number and inversely with egg size.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 593-604"},"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)80012-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90028403","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":"Colin Little ,&nbsp;Lynda P. Smith","doi":"10.1016/S0302-3524(80)80016-8","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80016-8","url":null,"abstract":"<div><p>Zonation of algae and invertebrates was examined on rocky shores in the Severn estuary from 1975 to 1978. These shores were characterised by an absence of macro-algae from MLWS and below. Some littoral algae showed reductions in abundance during the study. In particular, <em>Ascophyllum nodosum</em> and <em>Fucus serratus</em> almost disappeared from the mid shore at one site after 1976, and no significant recolonization had occurred by 1979. Animal species in general showed predictable and constant zonation patterns, but <em>Littorina rudis, Patella vulgata</em> and <em>Elminius modestus</em> all exhibited decreased upper vertical limits in the upper reaches of the estuary.</p><p>Three approaches were taken to interpret the zonation patterns and their changes. (i) Exposure to wave action was estimated. Decreasing exposure levels may account for the decline in upper vertical limits of species in the upper estuary. (ii) A survey of silt, salinity and temperature was carried out over complete tidal cycles. High silt concentrations may partially explain the absence of macro-algae below MLWS. (iii) Preliminary experiments compared the effects of grazers in the estuary with those in fully marine conditions. These experiments point to some of the factors which are responsible for the lack of algal recolonization on the shore from which the dominant fucoids disappeared after 1976, but the situation is complex and involves algal reproductive biology as well as grazer activity.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 651-669"},"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)80016-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90028402","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":"Effect of ocean dumping on 13C/12C ratios in marine sediments from the New York Bight","authors":"William C. Burnett,&nbsp;Oliver A. Schaeffer","doi":"10.1016/S0302-3524(80)80013-2","DOIUrl":"10.1016/S0302-3524(80)80013-2","url":null,"abstract":"<div><p>In order to evaluate the influence of the ocean dumping of sewage sludge upon the organic carbon fraction of sediments of the New York Bight, a study of carbon isotopic variations in surface sediments from the area has been completed. On the basis of our ¹³C/¹²C measurements, it appears that: (1) sewage is depleted in ¹³C as compared to average marine organic sedimentary carbon, and (2) δ¹³C values from sediments of the New York Bight show systematic variations which are a direct consequence of the sludge disposal. Based on assumptions regarding inputs of sedimentary carbon to the sea floor in this area, we have modeled these ¹³C/¹²C variations in terms of progressive dilution of normal marine carbon with carbon derived from the ocean dumping of wastewater sludges. The isotopic composition of carbon in sediments from the New York Bight may serve as a quantitative tracer of sewage sludge components.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 605-611"},"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)80013-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86369959","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":"On the chelation of toxic trace metals by humic acid of marine origin","authors":"Lj. Musani ,&nbsp;P. Valenta ,&nbsp;H.W. Nürnberg ,&nbsp;Z. Konrad ,&nbsp;M. Branica","doi":"10.1016/S0302-3524(80)80015-6","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80015-6","url":null,"abstract":"<div><p>The interaction of ⁶⁵Zn, ¹⁰⁹Cd and ²¹⁰Pb−²¹⁰Bi with humic acid isolated from marine sediment was investigated by high voltage paper electrophoresis in sea water and 0·55 <span>m</span> NaCl solutions. The experiments were performed in 100, 30 and 10% seawater to simulate also the estuarine conditions. The concentration of humic acid was varied from 3 to 300 mg l⁻¹. The electrophoretic mobility of the radionuclides was measured as function of the concentration of humic acid in the various systems and on aging of these systems from 0 to 7 days. Without addition of humic acid to seawater ¹⁰⁹Cd behaves as a cation, ⁶⁵Zn and ²¹⁰Pb give one cationic and a second nonmobile zone. In 0·55 <span>m</span> NaCl both ⁶⁵Zn and ²¹⁰Pb, give only one cationic zone. By addition of humic acid the radionuclides partly changed their electrophoretic mobility to anionic values and the zone at the starting point became more pronounced than in seawater without addition of humic acid. In general the results obtained confirm that the amounts of humic material dissolved in the open sea are too small to contribute significantly to the chelation of the investigated trace metals while in estuarine waters their contribution to trace metal chelation can play a role.</p></div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 639-649"},"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)80015-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91599207","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":"","authors":"N.R. Merrett","doi":"10.1016/S0302-3524(80)80020-X","DOIUrl":"10.1016/S0302-3524(80)80020-X","url":null,"abstract":"","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"11 6","pages":"Pages 709-710"},"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)80020-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"100852944","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":"On the chelation of toxic trace metals by humic acid of marine origin","authors":"Ljerka Musani, P. Valenta, H. Nürnberg, Z. Konrad, M. Branica","doi":"10.1016/S0302-3524(80)80015-6","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80015-6","url":null,"abstract":"","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"91 1","pages":"639-649"},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89072318","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":"A comparison of reproductive patterns in epifaunal and infaunal gammaridean amphipods","authors":"R. F. Dolah, E. Bird","doi":"10.1016/S0302-3524(80)80012-0","DOIUrl":"https://doi.org/10.1016/S0302-3524(80)80012-0","url":null,"abstract":"","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"204 1","pages":"593-604"},"PeriodicalIF":0.0,"publicationDate":"1980-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76535443","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}