Organic Coatings Reduce Dissolution Rate by an Order of Magnitude for Carbonate Minerals Produced by Marine Fish DOI Creative Commons
Amanda M. Oehlert,

Sarah Walls,

Katelyn Arista

и другие.

Global Biogeochemical Cycles, Год журнала: 2024, Номер 38(11)

Опубликована: Ноя. 1, 2024

Abstract Marine carbonate production and dissolution are important components of the global carbon cycle marine alkalinity budget. Global by fish (ichthyocarbonate) has been estimated to be as high 9.03 Pg CaCO 3 yr −1 ; however, fate ichthyocarbonate is poorly understood. High magnesium concentrations in would traditionally suggest rapid under current conditions, but a correlation between rate mol%MgCO not observed. Here, we aim determine role organic coatings on rates environments. We applied combination petrographic, geochemical, microCT approaches assess quantity distribution matter produced two species fish, Gulf toadfish ( Opsanus beta ) Olive flounder Paralichthys olivaceus ). show that matter, including external embedded material, volumetrically significant, ranging from 8.5% 32.3% volume. Bleach oxidation increased more than an order magnitude, suggesting these serve reduce reactive surface area mineral fraction ichthyocarbonate. Assuming do influence sinking rates, extend depth persistence water column ∼12–15×. Therefore, determinant cycle.

Язык: Английский

Fish Carbonates in the North Atlantic and Their Potential Role in the Carbon Cycle DOI
Mohammed S. Hashim, Maureen H. Conte, Michael A. Salter

и другие.

Global Biogeochemical Cycles, Год журнала: 2025, Номер 39(6)

Опубликована: Июнь 1, 2025

Abstract Marine fish precipitate carbonates in their intestines that they subsequently excrete as part of an osmoregulatory strategy. While are proposed to be volumetrically significant the global carbonate budget, no study has presented direct evidence open ocean. Here we examine sediment trap material collected by Oceanic Flux Program (OFP) North Atlantic and observe episodic occurrence enigmatic blue particles since 1992. The comprised calcite with unusually high magnesium content (up 46 mol%) distinctively depleted δ 13 C enriched 18 O compared produced common marine calcifiers. Based on mineralogical, isotopic, textural similarities between carbonates, propose pelagic fish. Our data suggest modify intestinal fluids create a concentrated, highly supersaturated, solution capable precipitating low C. Collectively, our imply production is open‐ocean phenomenon, opening up possibility contribute production, dissolution, export globally.

Язык: Английский

Процитировано

0
Microzooplankton grazing on the coccolithophore Emiliania huxleyi and its role in the global calcium carbonate cycle DOI Creative Commons

Courtney Dean,

Elizabeth L. Harvey, Matthew D. Johnson

и другие.

Science Advances, Год журнала: 2024, Номер 10(45)

Опубликована: Ноя. 8, 2024

Identifying mechanisms driving the substantial dissolution of biogenic CaCO

Язык: Английский

Процитировано

1
Temperature-Induced Seasonal Dynamics of Brain Gangliosides in Rainbow Trout (Oncorhynchus mykiss Walbaum) and Common Carp (Cyprinus carpio L.) DOI Creative Commons
Valentina Pavić,

Barbara Viljetić,

Senka Blažetić

и другие.

Life, Год журнала: 2024, Номер 14(10), С. 1273 - 1273

Опубликована: Окт. 7, 2024

This study aimed to determine the expression and distribution of gangliosides in specific regions brains rainbow trout (

Язык: Английский

Процитировано

0
Physiological responses of euryhaline marine fish to naturally-occurring hypersalinity DOI
Andrew J. Esbaugh

Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, Год журнала: 2024, Номер unknown, С. 111768 - 111768

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

0
Organic Coatings Reduce Dissolution Rate by an Order of Magnitude for Carbonate Minerals Produced by Marine Fish DOI Creative Commons
Amanda M. Oehlert,

Sarah Walls,

Katelyn Arista

и другие.

Global Biogeochemical Cycles, Год журнала: 2024, Номер 38(11)

Опубликована: Ноя. 1, 2024

Abstract Marine carbonate production and dissolution are important components of the global carbon cycle marine alkalinity budget. Global by fish (ichthyocarbonate) has been estimated to be as high 9.03 Pg CaCO 3 yr −1 ; however, fate ichthyocarbonate is poorly understood. High magnesium concentrations in would traditionally suggest rapid under current conditions, but a correlation between rate mol%MgCO not observed. Here, we aim determine role organic coatings on rates environments. We applied combination petrographic, geochemical, microCT approaches assess quantity distribution matter produced two species fish, Gulf toadfish ( Opsanus beta ) Olive flounder Paralichthys olivaceus ). show that matter, including external embedded material, volumetrically significant, ranging from 8.5% 32.3% volume. Bleach oxidation increased more than an order magnitude, suggesting these serve reduce reactive surface area mineral fraction ichthyocarbonate. Assuming do influence sinking rates, extend depth persistence water column ∼12–15×. Therefore, determinant cycle.

Язык: Английский

Процитировано

0