@article {530,
	title = {Growth and sexual maturity of the northern propellerclam (Cyrtodaria siliqua) in Eastern Canada, with bomb radiocarbon age validation},
	journal = {Marine Biology},
	volume = {156},
	year = {2009},
	note = {id: 803; 413YA Times Cited:0 Cited References Count:45Y},
	pages = {1029-1037},
	abstract = {The northern propellerclam Cyrtodaria siliqua is a common bycatch in the Arctic surfclam, Mactromeris polynyma fishery on Banquereau Bank in Eastern Canada. Samples of the propellerclam from this exploited fishery were used to determine the life history characteristics of the population. The age structure of the population is dominated by old animals to ages exceeding 100 years. We validated the age estimates for the propellerclam through analysis of bomb-produced radiocarbon in the shell growth increments deposited before, during and after the atmospheric atomic bomb testing periods of the 1950s and 1960s. Radiocarbon from shells with presumed birth dates between the late 1950s and 1970s clearly reflected the sharp increase in oceanic radiocarbon attributable to previous nuclear testing, indicating that age estimates based on shell increment counts are accurate. Estimates of von Bertalanffy growth parameters revealed that the growth rate of the population was relatively rapid for the first 20 years of life, slowing down to very low growth rates thereafter. Sexual maturity was estimated as being reached at 28.6 mm in length and 4.7 years in age. Size-weight morphometric relationships were also calculated.},
	issn = {0025-3162},
	doi = {10.1007/s00227-009-1146-9},
	author = {Kilada, R. W. and Campana, S. E. and Roddick, D.}
}
@article {351,
	title = {Validated age, growth, and mortality estimates of the ocean quahog (Arctica islandica) in the western Atlantic},
	journal = {Ices Journal of Marine Science},
	volume = {64},
	year = {2007},
	note = {id: 807; 173HY Times Cited:6 Cited References Count:51Y},
	pages = {31-38},
	abstract = {The age structure of offshore (Sable Bank) and inshore (St Mary{\textquoteright}s Bay) populations of eastern Canadian ocean quahogs (Arctica islandica), and of a northwestern Iceland population, is investigated. Age estimates for eastern Canadian ocean quahogs were validated through analysis of bomb-produced C-14 in quahog shell growth increments deposited before, during, and after the atmospheric atomic bomb testing periods of the 1950s and 1960s. Delta 14C from shells with presumed birthdates between the late 1950s and 1970s clearly reflects the sharp increase in oceanic radiocarbon attributable to nuclear testing. The results validate our age interpretations of Sable Bank quahogs to an age of 45 y, and support longevity estimates of more than 200 y for the same population. Longevity calculations for the other populations exceeded 60 y. Von Bertalanffy growth parameters were estimated for the three populations, the growth rate of all three was relatively rapid for the first 20 - 30 y of life, but thereafter was very slow. The instantaneous rate of natural mortality (M), calculated using the age-frequency distribution of the unexploited populations, was estimated to be 0.03 and 0.10 for the Sable Bank and St Mary{\textquoteright}s Bay populations, respectively.},
	issn = {1054-3139},
	doi = {10.1093/icesjms/fsl001},
	author = {Kilada, R. W. and Campana, S. E. and Roddick, D.}
}
