1604 



Saila, S. 



B. , J. M. Flowers, and M. 



Cannario. 



1967. 



Factors affecting the relative abundance of Mercenaria mercenaria in the 

 Providence River, Rhode Island. Proc. Natl. Shellf. Assn. 57: 83-89. 



In the Providence River, R.I., hard clam was mo 

 average sediment grain size was greater than 2 

 of sediment relatively high. Clam distribution 

 measured: pH, cation exchange capacity, total N 

 (max. 30 ft) , were not highly associated with c 

 observed difference in abundance may have been 

 variables not measured. Sediment properties al 

 abundance with high precision. Stringer found 

 3,534 acres in 1956. A later survey (1965) est 

 and J.L.M. 



re abundant in areas in which 

 mm diameter and carbon content 

 was contagious. Other factors 

 available P, and water depth 

 lam abundance. Much of the 

 caused by predation or other 

 one did not predict clam 

 588,000 bu of hard clams in 

 imated 1.3 million bu. - D.L. 



1605 



Saila, S. B., T. 



Polgar, and A. B. Rogers. 



1968. 



Results of studies related to dredged sediment dumping in Rhode Island 

 Sound. Proc. Annual NE Reg. Antipoll. Conf,: 71-78. 



This paper could not be obtained either through interlibrary loan or from 

 Dr. Saila's office. - J.L.M. 



1606 



Salchak, Anthony, and Jeff Haas. 



1971. 



Occurrence of the northern quahog , Mercenaria mercenaria, in Colorado Lagoon, 

 Long Beach, California. Calif. Fish Game 57(2): 126-128. 



The only recorded introduction of Mercenaria in southern Calif, was at Newport 

 Bay in 1940, but there is no evidence that it was successful. Introductions 

 into northern and central Calif, waters have had varying degrees of success. 

 There are no records of introductions into Colorado Lagoon. Its presence was 

 first recognized in 1967, and a survey was made in 1969. Of 267 specimens 

 taken, the dominant size range was 20 to 40 mm max dimension, with extremes of 

 8 to 101 mm. Specimens 60 mm and larger were found at 1/3 of 31 stations, 

 suggesting that the colony was well established. - J.L.M. 



1607 



Saloman, Carl H., and John L. Taylor. 1969. 



Age and growth of large southern quahogs from a Florida estuary. Proc. Natl. 

 Shellf. Assn. 59: 46-51. 



Age and growth of Mercenaria campechiensis from Boca Ciega Bay 

 estimated from external growth lines and from transverse shell 

 largest clam was 172 mm (6.8 in) long and weighed 2,110 g (4.6 

 largest 169 mm and 2,485 g. Two large dead clams measured 179 

 The oldest live clam was estimated to be 20 yrs old, but the 1 

 only 14 yrs. Growth is rapid, but very old clams decrease in 

 height with increasing age as shell margins recurve and become 

 A clam exceeds 50% of its expected height at 22 yrs in its 3rd 

 by the time it reaches age 5. An average length of 38-67 mm i 

 in the 2nd yr (littleneck) , 68-77 mm by end of 2nd yr (cherrys 

 77 mm in 3rd vr (chowder) . - J.L.M. 



Fla. were 



sections. The 



lb) , the second 



and 17 3 mm. 

 argest shell was 

 shell length and 



thick or blunt. 



yr and over 70% 

 s reached early 

 tone) , and above 



1608 



Sanders, H. L. 



1956. 



The biology of marine bottom communities. Chapter X in Oceanography of 

 Long Island Sound, 1952-1954. Bull. Bingham Ocean. Coll. 15: 346-414. 



Mercenaria mercenaria is mentioned as present (46 individuals weighing 0.036 

 g/m2) west of Charles Island, but. not discussed in text. - J.L.M. 



446 



