• sediment
  • The three variables, water temperature, clam size, and sediment particle size were highly significant (1% level), in influencing clam reburial activities by the end of the second hour through the termination of the experiment 48 hours later. (naver.com)
  • In an effort to escape, the clam works its way out of the sediment and may then be at risk of predation by birds. (wikipedia.org)
  • abundance
  • It is not clear whether the ribbonworm preys on hard clams, but a high abundance of this worm at one location near Prince Edward Island was thought to be responsible for the high mortality among newly transplanted hard clams. (wikipedia.org)
  • experimental
  • Optimum water temperatures for reburrowing were between 8.8 and 21 C. After 48 hours, 62% of the small, 39% of the medium, and 21% of the large clams had reburrowed in all experimental tests combined. (naver.com)
  • size
  • The aquarium with less than 0.5 mm substrate particle size had the greatest percentage of reburrowed clams of each size. (naver.com)
  • years
  • With the maximum life span potential ever increasing and currently standing in excess of 400 years the clam has recently gained interest as a potential model organism for ageing research. (deepdyve.com)
  • lower
  • The proboscis is everted (turned inside out) and the lower half of the Atlantic jackknife clam (Ensis directus) is enveloped. (wikipedia.org)