Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90018-1
Douglas Inman , Walter Munk , Marciano Balay
{"title":"Spectra of low frequency ocean waves along the Argentine shelf","authors":"Douglas Inman , Walter Munk , Marciano Balay","doi":"10.1016/0146-6313(61)90018-1","DOIUrl":"10.1016/0146-6313(61)90018-1","url":null,"abstract":"<div><p>The low frequency spectra covering the ‘quiet’ range between the astronomically induced tides and the wind generated swell was obtained by an analysis of the records from three tide gauge stations along the broad Argentine shelf. The cross-spectral analyses suggest a peaked spectrum (perhaps associated with shelf-resonances) superimposed upon an independently generated spectrum which diminishes monotonically with increasing frequency. The absence of <em>coherence</em> between Quequen and Mar del Plata, separated by a distance of 67 nautical miles, suggests that the seiches at the two locations are not directly related in any simple way. The disturbances are not propagated as simple edge waves between the two areas.</p></div>","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Pages 155-164"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90018-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76030380","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}
Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90022-3
T.R. Parsons, J.D.H. Strickland
{"title":"On the production of particulate organic carbon by heterotrophic processes in sea water","authors":"T.R. Parsons, J.D.H. Strickland","doi":"10.1016/0146-6313(61)90022-3","DOIUrl":"10.1016/0146-6313(61)90022-3","url":null,"abstract":"<div><p>It is suggested that the amount of heterotrophic carbon assimilation by micro-organisms in the sea may be a significant fraction of the photosynthetic production, when considering the whole water column in a deep ocean.</p><p>A method is described, allied to the carbon-14 method for measuring photosynthesis, whereby the heterotrophic uptake of any chosen substrate in sea water can be measured using the substrate labelled by carbon-14. The method is rapid and convenient and can give values of ‘relative-heterotrophic potential’. As with the radiochemical method for measuring marine photosynthesis, the exact interpretation of results presents many problems but the technique should prove a useful exploratory tool. Tests have been made using fully labelled acetate and glucose.</p><p>By a method of progressive radio-isotopic dilution it is possible to measure either the concentration or organic substrate in sea water or obtain information of the enzyme kinetics of the microorganisms assimilating a given substrate. A description is given of this method. A few preliminary trials to test its applicability have been encouraging.</p></div>","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Pages 211-222"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90022-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79727690","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}
Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90036-3
Robert E. Hopkins , Harold E. Edgerton
{"title":"Lenses for underwater photography","authors":"Robert E. Hopkins , Harold E. Edgerton","doi":"10.1016/0146-6313(61)90036-3","DOIUrl":"10.1016/0146-6313(61)90036-3","url":null,"abstract":"","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Pages 312-316, IN9-IN10, 317"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90036-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79405381","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}
Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90027-2
David A. McGill
{"title":"A preliminary study of the oxygen and phosphate distribution in the Mediterranean Sea","authors":"David A. McGill","doi":"10.1016/0146-6313(61)90027-2","DOIUrl":"10.1016/0146-6313(61)90027-2","url":null,"abstract":"<div><p>Observations in the eastern Mediterranean basin confirm <span>Pollak's</span> suggestion (1951) that the deep water there originates in the southern Adriatic Sea by the mixing of water masses under the influence of the prevailing winter wind. This water then sinks and flows along the bottom into the eastern Mediterranean, moving counter-clockwise. Such a flow is confirmed by the distribution of oxygen in the deep water of the entire eastern Mediterranean Sea. In the western Mediterranean a deep water mass is produced at the northern end of the Algiers-Provençal basin in winter and shows a similar spread toward the south. Oxygen and phosphate concentrations indicate a low level of biological productivity throughout the year except for localized inshore regions and in the enclosed bays. The concentration of nutrients in the western basin is about twice that of the eastern basin but it is still below the concentration of the neighbouring Atlantic.</p></div>","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Pages 259-268"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90027-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84307250","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}
Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90025-9
Nina G. Vinogradova
{"title":"Vertical zonation in the distribution of deep-sea benthic fauna in the ocean","authors":"Nina G. Vinogradova","doi":"10.1016/0146-6313(61)90025-9","DOIUrl":"10.1016/0146-6313(61)90025-9","url":null,"abstract":"","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Pages 245-250"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90025-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90243872","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}
Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90028-4
T.E. Pochapsky
{"title":"Some measurements with instrumented neutral floats","authors":"T.E. Pochapsky","doi":"10.1016/0146-6313(61)90028-4","DOIUrl":"10.1016/0146-6313(61)90028-4","url":null,"abstract":"<div><p>The motions of instrumented neutral floats were measured during short tests at various locations in the North Atlantic Ocean. The vertical paths as a function of time were obtained for floats from the time they were placed in the water until well after they reached their equilibrium levels. Motions attributed to internal waves were observed on sensitively instrumented near-surface floats. Pairs of floats were found to separate rapidly with a speed which was not constant.</p><p>A pressure-gradient measuring device showed no fluctuations over a length of approximately 100 cm at depths from 200 to 700 m. The static sensitivity of the equipment was approximately 3 dyne cm<sup>−2</sup> mm<sup>−1</sup>. Response of the device in shallower water was probably caused by gravity waves.</p></div>","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Pages 269-279"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90028-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82604904","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}
Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90021-1
J.B. Hersey, Richard H. Backus, Jessica Hellwig
{"title":"Sound-scattering spectra of deep scattering layers in the western North Atlantic Ocean","authors":"J.B. Hersey, Richard H. Backus, Jessica Hellwig","doi":"10.1016/0146-6313(61)90021-1","DOIUrl":"10.1016/0146-6313(61)90021-1","url":null,"abstract":"<div><p>Sound from small explosions has been used to study the frequency-dependent characteristics of deep scattering layers in three areas of the western North Atlantic Ocean. Layers show resonant properties, the scattered sound being most intense in a narrow frequency band. The scatterers are presumed to be mainly the swimbladders of bathypelagic fishes. In layers peaking at frequencies above 5 kcps there is a systematic shift of peak frequency as layer depth changes during vertical migration. In two cases studied frequency changes as the <span><math><mtext>5</mtext><mtext>6</mtext><mtext>th</mtext></math></span> power of the hydrostatic pressure. This suggests that in these cases the swimbladder simply expanded and contracted with changing pressure. In a third case frequency changes as the <span><math><mtext>1</mtext><mtext>2 </mtext><mtext>power</mtext></math></span> of the pressure. This suggests that the fish maintained neutral buoyancy throughout the depth migration by absorbing gas from the swimbladder as necessary. Layers peaking near or below 5 kcps are poorly resolved in depth. In one instance a direct relationship between frequency and depth has been established, but not well enough to define the relationship quantitatively. Pronounced depth and frequency migration is found in layers south of New England and south of Nova Scotia. Back-scattering coefficients were found to lie between − 64 and − 81 db re M<sup>−1</sup> in a small number of computations.</p></div>","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Pages 196-200, IN3-IN4, 201-210"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90021-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74041448","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}
Deep Sea Research (1953)Pub Date : 1961-01-01Epub Date: 2003-05-14DOI: 10.1016/0146-6313(61)90039-9
N.B. Marshall
{"title":"Life in the sea","authors":"N.B. Marshall","doi":"10.1016/0146-6313(61)90039-9","DOIUrl":"10.1016/0146-6313(61)90039-9","url":null,"abstract":"","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"8 3","pages":"Page 319"},"PeriodicalIF":0.0,"publicationDate":"1961-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(61)90039-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87240502","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}