. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 5- t/O 200 400 600 800 0 200 400 600 800 Nitrogen Loading (kg N ha"1 yr"1) Figure 1. Top: Abundance of seed coals in cores taken from Chillis River (CR). Quashnet River (QR), a»d Sage Lot Pond (SLP). Sum of 6 cores per estuary. Bottom Left: Relationship of seed coat abundance to C:N of sediments. % of max. is the number of seed coats in a section divided by the maximum number in the estuary. For CR. y = \ - * and R: = For SLP. y = \ - * and R: = The regression HIIX not
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 5- t/O 200 400 600 800 0 200 400 600 800 Nitrogen Loading (kg N ha"1 yr"1) Figure 1. Top: Abundance of seed coals in cores taken from Chillis River (CR). Quashnet River (QR), a»d Sage Lot Pond (SLP). Sum of 6 cores per estuary. Bottom Left: Relationship of seed coat abundance to C:N of sediments. % of max. is the number of seed coats in a section divided by the maximum number in the estuary. For CR. y = \ - * and R: = For SLP. y = \ - * and R: = The regression HIIX not significant for QR. Bottom Center: C:N in recent sediment {upper lit cm of 'sediment) vs. nitrogen loading rates (y = ] 7\ + * and R: = ). Bottom Right: d'fN vs. nitrogen loading rates where d!5N is averaged for top 10 cm (y = \ + * and R: = ). Literature Cited I Valiela, I., G. Collins, J. Kremer, K. Lajtha, M. Geist, B. Seely, ,). Brawley. and C. H. Sham. 1997. Ecol. Appl. 7: 358-3X0. 2. Valiela, I., K. Foreman, M. LaMontagne, D. Hersh, J. Cosla, P. Peckol, B. DeMeo-Andreson, C. D'Avanzo, M. Bahione, C. H. Sham, J. Brawley, and K. Lajtha. 1992. Estuaries 15: 443- 457. 3. Duarte. C. M. 1995. Ophelia 41: 87-112. 4. Burkholder, J. M., K. M. Mason, and H. B. Glasgow. Jr. 1992. Mar. Ecol. Prog. Ser. 61: 163-178. 5 Burkholder, J. M., H. B. Glasgow, Jr., and J. E. Cooke. 1994. Mar. Ecol. Prog. Ser. 105: 121-138. 6. Valitla, I., J. McClelland. J. Hauxwell, P. J. Behr, D. Hersh, and K. Foreman. 1997. Linwol. Occanogr. 42: 1 105- 1 1 IS. 7. Costa, J. 1988. Distribution, Production, and Historical Changes in Abundance of Eelgrass (Zostera marina L.) in Southeastern Mas- sachusetts. Thesis. Boston University, Massachusetts, Pp. 63-84. 8. McClelland, J. W., I. Valiela, and R. H. Michener. 1997. Lim- ni'l. Ocetinogr. 42: Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability
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