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Table 1 Decreasing trends estimated from sclerosponge δ13C records since 1800

From: Reconstruction of ocean environment time series since the late nineteenth century using sclerosponge geochemistry in the northwestern subtropical Pacific

  Locality Water depth (m) Before 1960 After 1960
Period δ13C slope for 1880-1960 Period δ13C slope for 1960-1992
(‰/year) (‰/year) (‰/year) (‰/year)
Pacific Ocean (this study)
 MNZ-S1 Okinawa Is. 2     1960-2015 −0.024 −0.019
 SMJ-2-S1 Miyako Is. 10 1880-1960 −0.0043 −0.0043 1960-2012 −0.023 −0.020
Atlantic Ocean (Carribean Sea)
 Lazareth et al. (2000) Jamaica Bay 30 1800-1960 −0.0037 −0.0049 1960-1983 −0.010  
 Böhm et al. (2002)
(Ce96-1)
Montego Bay 20 1800-1960 −0.0031 −0.0033 1960-1995 −0.015 −0.015
 Böhm et al. (2002)
(Ce95-2-1)
Montego Bay 20 1800-1960 −0.0030 −0.0048 1960-1994 −0.016 −0.016
 Böhm et al. (2002)
(Ce95-2-2)
Montego Bay 20 1889-1960 −0.0040   1960-1993 −0.017 −0.017
 Böhm et al. (2002) Rio Bueno, Jamaica 20 1827-1960 −0.0040 −0.0060 1960-1986 −0.013  
 Böhm et al. (2002) Pedro Bank 125 1800-1960 −0.0026 −0.0038 1960-1992 −0.017 −0.017
 Swart et al. (2002) Tongue of the Ocean 146 1886-1960 −0.0079   1960-1992 −0.006 −0.006