Tropical storm-forced near-inertial energy dissipation in the southeast continental shelf region of Hainan Island

Abstract. Continental shelves play a key role in the cycling of nitrogen and carbon. Here the physical transport and biogeochemical transformation processes affecting the fluxes into and out of continental shelf systems are reviewed, and their role in the global cycling of both elements is discussed. Uncertainties in observation-based estimates of nitrogen and carbon fluxes mostly result from uncertainties in the shelf-open ocean exchange of organic and inorganic matter, which is hard to quantify based on observations alone, but can be inferred from biogeochemical models. Model-based nitrogen and carbon budgets are presented for the Northwestern North Atlantic continental shelf. Results indicate that shelves are an important sink for fixed nitrogen and a source of alkalinity, but are not much more efficient in exporting organic carbon to the deep ocean than the adjacent open ocean for the shelf region considered.

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Inertial energy dissipation in shallow-water breaking waves

Journal of Fluid Mechanics ◽

10.1017/jfm.2020.83 ◽

2020 ◽

Vol 890 ◽

Cited By ~ 1

Author(s):

W. Mostert ◽

L. Deike

Keyword(s):

Energy Dissipation ◽

Shallow Water ◽

Breaking Waves ◽

Image Position ◽

Inertial Energy

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Contribution of Mountain River Materials to the Continental Shelf off Southeastern Hainan Island Since the Mid-Holocene

Journal of Ocean University of China ◽

10.1007/s11802-019-4100-6 ◽

2019 ◽

Vol 18 (5) ◽

pp. 1123-1129

Author(s):

Xu Tian ◽

Zuzhou Jiang ◽

Wei Gao ◽

Zhaoqing Liu ◽

Xiling Liu ◽

...

Keyword(s):

Continental Shelf ◽

Hainan Island ◽

Mountain River

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The role of continental shelves in nitrogen and carbon cycling: Northwestern North Atlantic case study

Ocean Science ◽

10.5194/os-6-539-2010 ◽

2010 ◽

Vol 6 (2) ◽

pp. 539-548 ◽

Cited By ~ 39

Author(s):

K. Fennel

Keyword(s):

Continental Shelf ◽

North Atlantic ◽

Deep Ocean ◽

Open Ocean ◽

Biogeochemical Models ◽

Inorganic Matter ◽

Continental Shelves ◽

Shelf Region

Abstract. Continental shelves play a key role in the cycling of nitrogen and carbon. Here the physical transport and biogeochemical transformation processes affecting the fluxes into and out of continental shelf systems are reviewed, and their role in the global cycling of both elements is discussed. Uncertainties in the magnitude of organic and inorganic matter exchange between shelves and the open ocean is a major source of uncertainty in observation-based estimates of nitrogen and carbon fluxes. The shelf-open ocean exchange is hard to quantify based on observations alone, but can be inferred from biogeochemical models. Model-based nitrogen and carbon budgets are presented for the Northwestern North Atlantic continental shelf. Results indicate that shelves are an important sink for fixed nitrogen and a source of alkalinity, but are not much more efficient in exporting organic carbon to the deep ocean than the adjacent open ocean for the shelf region considered.

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Size-structured patterns of piscivory of the longfin inshore squid (Loligo pealeii) in the mid-Atlantic continental shelf ecosystem

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f05-258 ◽

2006 ◽

Vol 63 (4) ◽

pp. 754-765 ◽

Cited By ~ 14

Author(s):

Mary E Hunsicker ◽

Timothy E Essington

Keyword(s):

Continental Shelf ◽

Time Period ◽

Size Constraints ◽

Body Sizes ◽

The Usa ◽

Juvenile Stages ◽

Commercially Important ◽

Shelf Region ◽

Loligo Pealeii

The longfin inshore squid (Loligo pealeii) dominates the landings in the USA mid-Atlantic continental shelf region, yet the potential ecological effects of harvesting this species are not known. Because squid feed on a wide variety of prey items, including juvenile stages of commercially important fish species, a full exploration on the predatory role of squid in this ecosystem is warranted. We examined the seasonal diet contents of L. pealeii and evaluated the importance of size constraints in governing patterns of piscivory. Our analyses showed that piscivory was dictated by size constraints, with larger squid demonstrating higher rates of piscivory than small squid. Squid were piscivorous at smaller sizes in the winter and spring than during the summer and autumn. Also, the frequency of piscivory was highest during the winter and spring, coincident with the time period when the number of vulnerable prey species was greatest. Our findings suggest that the frequency and intensity of piscivory are likely to be related to the duration of time that prey are vulnerable to predation, which in turn is dictated by the relative body sizes of L. pealeii and juvenile fishes.

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A meta-collection of nitrogen stable isotope data measured in Arctic marine organisms from the Canadian Beaufort Sea, 1983–2013

BMC Research Notes ◽

10.1186/s13104-021-05743-0 ◽

2021 ◽

Vol 14 (1) ◽

Author(s):

Ashley Ehrman ◽

Carie Hoover ◽

Carolina Giraldo ◽

Shannon A. MacPhee ◽

Jasmine Brewster ◽

...

Keyword(s):

Stable Isotope ◽

Continental Shelf ◽

Food Web ◽

Isotope Ratios ◽

Marine Organisms ◽

The Arctic ◽

Stable Isotope Ratios ◽

Food Web Structure ◽

Web Structure ◽

Shelf Region

Abstract Objectives Existing information on Arctic marine food web structure is fragmented. Integrating data across research programs is an important strategy for building a baseline understanding of food web structure and function in many Arctic regions. Naturally-occurring stable isotope ratios of nitrogen (δ15N) and carbon (δ13C) measured directly in the tissues of organisms are a commonly-employed method for estimating food web structure. The objective of the current dataset was to synthesize disparate δ15N, and secondarily δ13C, data in the Canadian Beaufort continental shelf region relevant to trophic and ecological studies at the local and pan-Arctic scales. Data description The dataset presented here contains nitrogen and carbon stable isotope ratios (δ15N, δ13C) measured in marine organisms from the Canadian Beaufort continental shelf region between 1983 and 2013, gathered from 27 published and unpublished sources with associated sampling metadata. A total of 1077 entries were collected, summarizing 8859 individual organisms/samples representing 333 taxa across the Arctic food web, from top marine mammal predators to primary producers.

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