". . . an examination of the Weather 

 Bureau reports on Texas for 1934-5 

 shows that rainfall and flood levels of 

 the rivers were at unusual naaxima 

 during May and June, 1935. A maximunn 

 of the resulting outflow of water of very 

 low salinity throughthe passes occurred 

 during the last week in June and there- 

 fore just preceding the first appearance 

 of dead fish on Padre Island. . . ." [p. 

 49.] 



MARGALEF, RAMON. 



1963. Succession in marine populations. 

 In Raghu Vira (editor), Advancing fron- 

 tiers of plant sciences, vol. 2, p. 137- 

 188. Institute for the Advancement of 

 Sciences and Culture, New Delhi 16, 

 India. 



MARTIN, G. W., and THURLOW C. NELSON. 

 1929. Swarming of dinoflagellates in Dela- 

 ware Bay, New Jersey. Bot. Gaz. 88(2): 

 218-224. 



They described discolored water oc- 

 curring in late summer of 1928 in 

 Delaware Bay, N.J. It extended from 

 the shore to about 7 m. out, where the 

 depth was 2 m. The chief organisnn 

 was Annphidinium f us if or me . Oysters 

 exposed during low tide were examined 

 after being covered half a meter and 

 were found to be full of the organisms. 



Some patches of "red" water con- 

 tained Gymnodiniunn . They found when 

 they were killed with a strong solution 

 of iodine in potassium iodide and ex- 

 amined microscopically that each cell 

 was surrounded by a gelatinous envelope 

 as thick as the diameter of the cell it- 

 self, so that the water in which they 

 occurred must have been a nearly con- 

 tinuous mass of soft jelly. The envelope 

 is also visible, but less apparent, if the 

 organisms are killed in a saturated 

 solution of bichloride of mercury. The 

 envelope is less regularly seen in ma- 

 terial killed in osnnic acid and then trans- 

 ferred to chrom-acetic solution, and 

 never in any of the other reagents used. 



". . .Gelatinous envelopes are com- 

 mon among dinoflagellates when en- 

 cysted, but not when active. The cells 

 referred to in this connection were 

 actively motile. A similar envelope 

 has been noted occasionally surround- 

 ing other species of naked dinoflagel- 

 lates in the active condition, but only 

 when killed by the iodine or bichloride 

 methods. In red water plankton in which 

 Amphidinium fusiforme is the dominant 

 species, the Amphidiniunn cells tend to 

 cling together in clumps, but no gelati- 

 nous envelope can be demonstrated. In 

 many of the clumps (although not in all). 



however, they may be seen to be 

 clustered thickly about a cell of the 

 Gymnodinium . This gelatinous envelope 

 nriay well be a factor of importance in 

 holding the organisnns together, once 

 they are massed by a favorable com- 

 bination of light, water temperature, 

 and tidal currents." [p. 223.] 



MARVIN, KENNETH T, 



1955. Oceanographic observations in west 

 coast Florida waters, 1949-52. Fish 

 Wildl, Serv., Spec. Sci. Rep. Fish, 149, 

 i + 32 p. 



This report presents raw hydro- 

 graphic data collected by the Fish and 

 Wildlife Service from May 1949 through 

 July 1951. Data do not extend into 1952 

 as the title of the paper implies. Data 

 were collected by the vessel Pompano 

 from 10 stations (1 in Charlotte Harbor 

 and 9 offshore to as far as 120 miles). 

 Two other stations were in the Peace 

 and Caloosahatchee Rivers. Station data 

 include temperature, salinity, oxygen, 

 inorganic and total phosphorus, pH, 

 and nitrites. 



MARVIN, KENNETH T. 



1958. Copper ore experin-ients for red tide 

 control. Jn Annual report of the Gulf 

 Fishery Investigations for the year 

 ending June 30, 1958, U.S. Fish Wildl. 

 Serv., p. 78-85, 



Most of this material is discussed 

 in Marvin et al. (1961). 



". . .the source of copper would have 

 to be capable of releasing a relatively 

 small amount of copper into solution 

 over a long period of time. , . .The 

 particular ore under consideration is 

 a sulphide ore containing roughly 1 per- 

 cent copper, 3.5 percent iron and 6 per- 

 cent sulphur. 



"Preliminary investigations have 

 ,shown that the ore in a closed system 

 (4 pounds of ore in 120 gallons of sea 

 water) will liberate a maximum of 

 about 1.5 parts per n^illion of copper 

 in about a day's time. This then tapers 

 off to about 0.9 part per million; the 

 excess copper is presumably precip- 

 itated as the rather insoluble com- 

 pound, basic copper carbonate. . . ." 

 [p. 78-79.] 



MARVIN, KENNETH T. 



1959, Testing copper ore for red tide con- 

 trol. In Galveston Biological Laboratory 

 fishery research for the year ending 

 June 30, 1959, p. 86-94. U.S. Fish 

 Wildl, Serv., Circ. 62. 



"Field tests have been conducted to 

 determine the effects of copper sulphate 

 on G. breve when applied as crystals 



52 



