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Mercenaria mercenaria

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Journal Article
Journal: PALAIOS
Published: 01 August 2008
PALAIOS (2008) 23 (8): 559–565.
...-specific isotopic differences exist. Three genotypes— Mercenaria mercenaria , M. campechiensis , and their natural hybrid form—are found in coastal Florida waters and differentiation of genotypes can be difficult to determine morphologically. This issue may be problematic when using archaeological shells...
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Life spans and mortality rates of  <b>Mercenaria</b> <b>mercenaria</b>  and  Chione eleva...
Published: 01 November 2018
Table 1. Life spans and mortality rates of Mercenaria mercenaria and Chione elevata from the Research Lease and Middle Marsh: Z is the instantaneous mortality rate, calculated via eq. (1) for the various t max values and via eq. (3) for the age-frequency distributions (AFDs). t
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Observed and expected dead ratios of  <b>Mercenaria</b> <b>mercenaria</b>  and  Chione el...
Published: 01 November 2018
Table 2. Observed and expected dead ratios of Mercenaria mercenaria and Chione elevata . Abbreviations as in Table 1 . Observed dead ratios are the portion of each species collected dead from each site. Expected dead ratios reflect the proportion of each species that should be found
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Chione elevata  and  <b>Mercenaria</b> <b>mercenaria</b>  abundance from Research Lease. ...
Published: 01 November 2018
Table A1. Chione elevata and Mercenaria mercenaria abundance from Research Lease. Live counts Live ratio Dead counts Dead ratio t maxLocal Chione elevata 37 0.53 503 0.74 12 Mercenaria mercenaria 32 0.46 180 0.26 20
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—Distribution of pelecypod,  <b>Mercenaria</b> <b>mercenaria</b> campechiensis , one of l...
Published: 01 September 1959
FIG. 17a. —Distribution of pelecypod, Mercenaria mercenaria campechiensis , one of large heavy forms typical of high-salinity bay margins.
Journal Article
Journal: PALAIOS
Published: 01 August 2001
PALAIOS (2001) 16 (4): 354–371.
...RICHARD R. ALEXANDER; GREGORY P. DIETL Abstract Articulated and disarticulated shells of Anadara ovalis , Anomia simplex , Argopecten irradians , Astarte castanea , Crassostrea virginica , Divalinga quadrisulcata , Donax variabilis , Ensis directus , Geukensia demissa , Mercenaria mercenaria , Mya...
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Journal Article
Journal: PALAIOS
Published: 01 April 2001
PALAIOS (2001) 16 (2): 161–170.
... to seawater, point contacts of shells) features. Compressive strength of fresh ( Mercenaria mercenaria , Mytilus edulis ) and beach-collected ( Anadara ovalis ) shells was measured by placing a single valve flat on a surface and compressing it. Compactional strength of beach-collected Mulinia lateralis shells...
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Journal Article
Journal: Paleobiology
Published: 01 November 2018
Paleobiology (2018) 44 (4): 783–797.
...Table 1. Life spans and mortality rates of Mercenaria mercenaria and Chione elevata from the Research Lease and Middle Marsh: Z is the instantaneous mortality rate, calculated via eq. (1) for the various t max values and via eq. (3) for the age-frequency distributions (AFDs). t...
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Journal Article
Journal: PALAIOS
Published: 01 June 2013
PALAIOS (2013) 28 (6): 386–393.
...DONNA SURGE; TING WANG; IGOR GUTIÉRREZ-ZUGASTI; PATRICIA H. KELLEY Abstract In the western North Atlantic and Gulf of Mexico, isotope sclerochronology and field studies of the hard clams, Mercenaria mercenaria and M. campechiensis , collected across a latitudinal gradient show patterns...
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Journal Article
Journal: PALAIOS
Published: 01 February 2013
PALAIOS (2013) 28 (2): 93–98.
... shell layer of three specimens were analyzed for oxygen isotope ratios (δ 18 O). Previous studies show that dark growth lines in other bivalve taxa from the same geographic area, such as Mercenaria mercenaria, correlated with summer growth cessation. A similar accretionary pattern does not exist in C...
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Journal Article
Journal: Geology
Published: 01 June 1980
Geology (1980) 8 (6): 268–271.
...George R. Clark, II; Richard A. Lutz Abstract Pyrite with characteristic brass-yellow luster was found coating parts of the outer surface of living Mercenaria mercenaria and Geukensia demissa in a Georgia tidal marsh. Sections through one shell revealed additional pyrite replacing aragonite...
Journal Article
Published: 01 December 1967
Journal of Sedimentary Research (1967) 37 (4): 1117–1123.
...Egbert G. Driscoll Abstract Shells of Mercenaria mercenaria, Mya arenaria and Aequipecten irradians have been subjected to abrasion in three marine environments on the Massachusetts coast. Shells were exposed to moderate surf on a gravelly sand beach for 18 hours; to moderate surf on a sand beach...
Journal Article
Published: 01 May 1962
Journal of Paleontology (1962) 36 (3): 586–591.
... geographically, and discussed. Among the 73 named species, Aequipecten gibbus, Mercenaria mercenaria, Spisula solidissima , and pelecypods in general were most abundant. Although many southern species of warm-water affinities were found, several northern species of cold-water affinities were present, some...
Journal Article
Journal: Geology
Published: 01 September 1974
Geology (1974) 2 (9): 425–428.
...Richard M. Mitterer Abstract Diagenetic conversion of isoleucine to alloisoleucine in shells of Mercenaria provides a quantitative geochemical aid for interpreting the Pleistocene sequence in southern Florida. At least seven different cycles of marine sedimentation, reflecting high sea levels...
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FIGURE 3 —Variation in oxygen and carbon isotope ratios in  <b>Mercenaria</b> merc...
in > PALAIOS
Published: 01 August 2008
FIGURE 3 —Variation in oxygen and carbon isotope ratios in Mercenaria mercenaria . A) Specimen PI006Mm. B) Specimen PI017Mm. C) Specimen PI048Mm. Black diamonds = δ 18 O, open squares = δ 13 C; gray bars = location of dark growth increments; arrow = collection date (August 5, 2003). Growth
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Age frequency distributions (AFDs) for  Chione elevata  and  <b>Mercenaria</b> mer...
Published: 01 November 2018
Figure 2. Age frequency distributions (AFDs) for Chione elevata and Mercenaria mercenaria collected from Research Lease and Middle Marsh. AFDs include all live-collected individuals, and all dead right valves ≥1 year of age (if age could be determined for that individual). Gray dashed lines
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Figure  1. Ontogenetic changes in the life position of  <b>Mercenaria</b> mercenar...
Published: 01 February 2008
Figure 1. Ontogenetic changes in the life position of Mercenaria mercenaria that relate to the vulnerability of juveniles to predation. The postlarval form is attached to sand grains by a byssus (A). Relatively elongate siphons of an individual slightly more than 2 cm long (B) position its shell
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Box plots of data collected from drilled  <b>Mercenaria</b>  valves. For each
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Published: 14 October 2015
Figure 3 Box plots of data collected from drilled Mercenaria valves. For each box plot, center line represents the mean value, box terminates at the 25 th and 75 th percentiles, and error bars denote the minimum and maximum values. A, Size (antero-posterior width
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A) Schematic drawing of  <b>Mercenaria</b>  shell layers and sampling strategy wit...
in > PALAIOS
Published: 01 September 2013
FIGURE 2— A) Schematic drawing of Mercenaria shell layers and sampling strategy within the hinge plate (indicated by rectangle and enlarged in lower diagram). B) Growth measurements are represented by black bars, each of which included a dark and light increment (for details, see text
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Age estimates for  <b>Mercenaria</b> -based aminozones and  Mulinia  subgroups. Mo...
Published: 01 August 2013
Table 2.— Age estimates for Mercenaria -based aminozones and Mulinia subgroups. Model ages span the full range of possible ages given in table 8 of Wehmiller et al. (2010) . Non-linear model ages are consistent with Sr isotope ages in Wehmiller et al. (2012 , their fig. 2 and table 3).