@article {2973,
	title = {Late Holocene centennial to millennial-scale variability in lower trophic level productivity off southern Hokkaido, Japan, and its response to dissolved iron-replete Coastal Oyashio dynamics},
	journal = {Quaternary Research},
	volume = {107},
	year = {2022},
	month = {02/2022},
	pages = {27 - 42},
	abstract = {Little is known about the dynamics of marine food chains spanning primary to higher trophic levels on centennial and longer timescales, especially where the supply of dissolved iron limits primary productivity. To elucidate the long-term dynamics of biological productivity in the Coastal Oyashio (CO), which is a major pathway for transporting dissolved iron into the western North Pacific from winter to spring, we reconstructed the lower trophic level productivity over the last 3000 years in the CO. Our results demonstrate that the concentrations and mass accumulation rates of both Chl- a (chlorophyll a and its derivatives) and biogenic opal used as proxies of primary productivity, and steryl chlorin esters (SCEs) used as that of zooplankton productivity, show a millennial-scale increasing trend and centennial-scale variability beginning ca. AD 400. SCEs were positively correlated with Chl- a , indicating that changes in zooplankton productivity were induced by bottom-up control of primary productivity. The Chl- a and SCEs showed synchronous centennial-scale patterns with a relative abundance of sea-ice-associated diatom species transported by CO, and with a ventilation index in the Okhotsk Sea Intermediate Water. This synchronous pattern indicates that lower trophic-level productivity during the spring bloom responded to the intensity of iron-replete CO.},
	doi = {10.1017/qua.2021.71},
	url = {https://www.cambridge.org/core/journals/quaternary-research/article/late-holocene-centennial-to-millennialscale-variability-in-lower-trophic-level-productivity-off-southern-hokkaido-japan-and-its-response-to-dissolved-ironreplete-coastal-oyashio-dynamics/},
	author = {Kuwae, Michinobu and Tsugeki, Narumi and Finney, Bruce P. and Tani, Yukinori and Onodera, Jonaotaro and Kiyoto, Mako and Kusaka, Mitsukuni and Sagawa, Takuya and Nakamura, Yugo and Ohnishi, Hiroji and Kuroda, Hiroshi and Okuda, Noboru and Ohta, Tamihisa and Ikehara, Minoru and Irino, Tomohisa}
}
@article {194,
	title = {Paleoecology of mangroves along the Sibun River, Belize},
	journal = {Quaternary Research},
	volume = {76},
	year = {2011},
	note = {id: 2099},
	pages = {220-228},
	abstract = {This study examines a sediment core (SR-63) from a mangrove ecosystem along the Sibun River in Belize, which is subject to both changes in sea-level and in the characteristics of the river{\textquoteright}s drainage basin. Radiocarbon dates from the core show a decreased sedimentation rate from ~ 6 ka to 1 cal ka BP and a marked change in lithology from primarily mangrove peat to fluvial-derived material at ~ 2.5 cal ka BP. Changes in the sedimentation rates observed in mangrove ecosystems offshore have previously been attributed to changes in relative sea-level and the rate of sea-level rise. Pollen analyses show a decreased abundance of Rhizophora (red mangrove) pollen and an increased abundance of Avicennia (black mangrove) pollen and non-mangrove pollen coeval with the decreased sedimentation rates. Elemental ratios ([N:C]a) and stable isotope analyses (δ15N and δ13C) show that changes in the composition of the organic material are also coeval with the change in lithology. The decrease in sedimentation rate at the site of core SR-63 and at offshore sites supports the idea that regional changes in hydrology occurred during the Holocene in Belize, influencing both mainland and offshore mangrove ecosystems.},
	issn = {0033-5894},
	doi = {10.1016/j.yqres.2011.06.001},
	url = {http://www.sciencedirect.com/science/article/pii/S003358941100069X},
	author = {Monacci, Natalie M. and Meier-Gr{\"u}nhagen, Ursula and Finney, Bruce P. and Behling, Hermann and Wooller, Matthew J.}
}
