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  • 1
    Publication Date: 2024-03-07
    Description: Between September 2016 and August 2017, we conducted year-long reciprocal transplantation experiments using the cold-water coral Desmophyllum dianthus along natural oceanographic horizontal and vertical gradients (vertically: 20 m to 300 m depth and horizontally: head to mouth of fjord) in Comau Fjord to study seasonal changes and the acclimatisation potential of its biochemical composition. Seasonal energy reserves (proteins, carbohydrates and lipids) and the C:N ratio of native and novel (cross-transplanted) corals were measured at six shallow (A-F, 20 m) and one deep station (Ed, 300 m) during autral summer (January), autumn (May) and winter (August).
    Keywords: A, As; B; C; C:N; Carbohydrate; Carbohydrates, energy reserve per individuum; Carbohydrates, energy reserve per surface area; Carbohydrates per individuum; Carbohydrates per surface area; Carbon/Nitrogen ratio; Caryophyllia huinayensis, area; Comau Fjord, Patagonia, Chile; D; Depth, description; Ed; energy reserves; Es; Event label; F, Fs, Lillihuapy, Lilliguapi; Identification; Liliguapi; Lipid; Lipids, energy reserve per individuum; Lipids, energy reserve per surface area; Lipids per individuum; Lipids per surface area; Method comment; Monitoring station; MONS; Near_SWALL; PACOC; Pared_de_la_cruz; Pirate_Cove; Plankton- And cold-water COral ecology in Comau Fjord, Chile; protein; Proteins, energy reserve per individuum; Proteins, energy reserve per surface area; Proteins per individuum; Proteins per surface area; Reciprocal Transplant; Rio_Tambor; Season; seasonality; Species, unique identification; Species, unique identification (URI); Station label; surface area; Total energy reserve per individuum; Total energy reserve per surface area; X-Telele; X-Telele_deep
    Type: Dataset
    Format: text/tab-separated-values, 5081 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2024-04-12
    Description: The relationship between energy reserves of cold-water corals (CWCs) and their physiological performance remains largely unknown. In addition, it is poorly understood how the energy allocation to different metabolic processes might change with projected decreasing food supply to the deep sea in the future. This study explores the temporal and spatial variations of total energy reserves (proteins, carbohydrates and lipids) of the CWC Desmophyllum dianthus and their correlation with its calcification rate. We took advantage of distinct horizontal and vertical physico-chemical gradients in Comau Fjord (Chile) and examined the changes in energy reserves over one year in an in situ reciprocal transplantation experiment (20 m vs. 300 m and fjord head vs. mouth). Total energy reserves correlated positively with calcification rates. The fast-growing deep corals had higher and less variable energy reserves, while the slower-growing shallow corals showed pronounced seasonal changes in energy reserves. Novel deep corals (transplanted from shallow) were able to quickly increase both their calcification rates and energy reserves to similar levels as native deep corals. Our study shows the importance of energy reserves in sustaining CWC growth in spite of aragonite undersaturated conditions (deep corals) in the present, and potentially also future ocean.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
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