Predicting the Responses of the Coastal Zone to Global Change

Holligan, Patrick M.; Reiners, William A.

doi:10.1016/s0065-2504(08)60137-3

Cited by 52 publications

(28 citation statements)

References 106 publications

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“…Our study exemplifies how a regional perspective can be developed, when sites are compared using the same methodology. This regional perspective is necessary in order to characterize the relationship of nutrient fluxes to environmental change, including human intervention (Holligan & Reiners 1992).…”

Section: Comparison Between San Quintin and Tomales Baysmentioning

confidence: 99%

Benthic metabolism in San Quintin Bay, Baja California, Mexico

Ibarra-Obando

Smith²,

Poumian-Tapia³

et al. 2004

Mar. Ecol. Prog. Ser.

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Section: Comparison Between San Quintin and Tomales Baysmentioning

confidence: 99%

Benthic metabolism in San Quintin Bay, Baja California, Mexico

Ibarra-Obando

Smith²,

Poumian-Tapia³

et al. 2004

Mar. Ecol. Prog. Ser.

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“…Numerous secondary reactions such as precipitation/dissolution processes (Mucci and Morse, 1984;Canfield and Berner, 1987;Berelson et al, 1990) and redox reactions (Canfield et al, 1993a, b;Deflandre et al, 2002) take place in the sedimentary column, affecting concentration gradients, and thus diffusive fluxes of dissolved components (Berner, 1980). In particular, it is important to estimate the rates and relative importance of the different mineralization pathways when assessing the modification of organic carbon (OC) fate in response to environmental changes (Holligans and Reiners, 1992). These degradation rates can be determined indirectly from the pore-water concentration profiles coupled to diagenetic models (e.g.…”

Section: Introductionmentioning

confidence: 99%

Modeling biogeochemical processes in sediments from the Rhône River prodelta area (NW Mediterranean Sea)

et al. 2011

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Abstract. In situ oxygen microprofiles, sediment organic carbon content, and pore-water concentrations of nitrate, ammonium, iron, manganese, and sulfides obtained in sediments from the Rhône River prodelta and its adjacent continental shelf were used to constrain a numerical diagenetic model. Results showed that (1) the organic matter from the Rhône River is composed of a fraction of fresh material associated to high first-order degradation rate constants (11-33 yr −1 ); (2) the burial efficiency (burial/input ratio) in the Rhône prodelta (within 3 km of the river outlet) can be up to 80 %, and decreases to ∼20 % on the adjacent continental shelf 10-15 km further offshore; (3) there is a large contribution of anoxic processes to total mineralization in sediments near the river mouth, certainly due to large inputs of fresh organic material combined with high sedimentation rates; (4) diagenetic by-products originally produced during anoxic organic matter mineralization are almost entirely precipitated (> 97 %) and buried in the sediment, which leads to (5) a low contribution of the re-oxidation of reduced products to total oxygen consumption. Consequently, total carbon mineralization rates as based on oxygen consumption rates and using Redfield stoichiometry can be largely underestimated in such River-dominated Ocean Margins (RiOMar) environments.

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“…Coastal regions are responsible for approximately 30% of global cycling thus occur when these highly concentrated predator and ocean productivity (Holligan and Reiners, 1992) and, as such, are prey fields intersect. Because of the high rates and levels of zones of the highest biogeochemical cycling per area with respect activity in coastal systems, the mechanisms governing patch to carbon, nitrogen, phosphorus, and trace metals (Ducklow and distribution and coherence of organisms and their biological McCallister, 2005;Jahnke, 2005).…”

Section: Introductionmentioning

confidence: 99%

Bioluminescence to reveal structure and interaction of coastal planktonic communities

Moline

Blackwell

Case

et al. 2009

Deep Sea Research Part II: Topical Studies in Oceanography

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a b s t r a c tEcosystem function will in large part be determined by functional groups present in biological communities. The simplest distinction with respect to functional groups of an ecosystem is the differentiation between primary and secondary producers. A challenge thus far has been to examine these groups simultaneously with sufficient temporal and spatial resolution for observations to be relevant to the scales of change in coastal oceans. This study takes advantage of general differences in the bioluminescence flash kinetics between planktonic dinoflagellates and zooplankton to measure relative abundances of the two groups within the same-time space volume. This novel approach for distinguishing these general classifications using a single sensor is validated using fluorescence data and exclusion experiments. The approach is then applied to data collected from an autonomous underwater vehicle surveying 4500 km in Monterey Bay and San Luis Obispo Bay, CA during the summers of [2002][2003][2004]. The approach also reveals that identifying trophic interaction between the two planktonic communities may also be possible.

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Predicting the Responses of the Coastal Zone to Global Change

Cited by 52 publications

References 106 publications

Benthic metabolism in San Quintin Bay, Baja California, Mexico

Benthic metabolism in San Quintin Bay, Baja California, Mexico

Modeling biogeochemical processes in sediments from the Rhône River prodelta area (NW Mediterranean Sea)

Bioluminescence to reveal structure and interaction of coastal planktonic communities

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