Harmful Algal Blooms Associated with Volcanic Eruptions in Indonesia and Philippines for Korean Fishery Damage

Kim, Tai-Jin

doi:10.4236/abb.2020.115017

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…One plausible explanation is that high nutrition associated with volcanism resulted in a fertilization of marine environments, thereby promoting primary production in the ecosystems. This hypothesis is supported by studies that demonstrated a positive impact of volcanic eruptions on primary production in modern marine environments such as the Korean coast and the western Pacific Ocean (Zhang et al ., 2017; Kim, 2020).…”

Section: Discussionmentioning

confidence: 99%

Ecosystem changes through the Permian–Triassic and Triassic–Jurassic critical intervals: Evidence from sedimentology, palaeontology and geochemistry

et al. 2023

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The Permian-Triassic and Triassic-Jurassic critical intervals are among the most significant ecological upheavals in the Phanerozoic. Both evolutionary junctures are characterized by environmental deterioration associated with a marked biodiversity decline. In this study, Permian-Triassic and Triassic-Jurassic boundary sections from South China and the Northern Calcareous Alps were investigated. In order to reconstruct the interplay between biotic and abiotic processes, a multifaceted approach that included optical microscopy, X-ray diffraction, Raman spectroscopy, stable carbon isotopes and lipid biomarkers was employed. The lower parts of these two sections are similar as both consist of limestone with abundant fossils of eukaryotic organisms. However, the Permian-Triassic record is dominated by dasyclad green algae and fusulinid foraminifera, while the Triassic-Jurassic record is typified by corals and coralline sponges. Moving upward, both sections consist mainly of micrite and marl. Concerning the Permian-Triassic section, it transits to volcanic ash intercalated by a distinct limestone bed with abundant calcispheres (tentatively attributed to ancestors of dinoflagellates). The Triassic-Jurassic section does not provide direct evidence for volcanic activity, but also becomes rich in calcisphere-type cysts towards the top. Additionally, the section preserves abundant 4-methyl sterenes (diagnostic for dinoflagellates) and C 37-39 nalkanes (indicative for haptophytes). Hence, both critical intervals were associated with marked blooms of (ancestral) dinoflagellates and haptophytes (for example, coccolithophorids). These blooms were followed by ecological lagphases, as indicated by low carbonate contents and scarce fossils which only increased further up the sections. For both critical intervals, it is commonly assumed that the formation of voluminous volcanic provinces (Siberian Traps and Central Atlantic Magmatic Province, respectively), as well as associated 1601

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Section: Discussionmentioning

confidence: 99%