Estimates of autumntime benthic secondary production in Laizhou Bay and adjacent Bohai Sea waters

Hua, Er; Zhou, Hong; Zhang, Zhinan; Yu, Zishan

doi:10.1007/s11802-010-1726-9

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…Their estimated total production is in line with ranges for temperate coastal areas where similar assumptions have been made about meiofaunal biomass and P/B values [11], [47], [57], [69]–[74]. In this study, the proportion of total biomass or production made up of the fauna <1 mm increased exponentially with increasing percent sand.…”

Section: Discussionsupporting

confidence: 84%

Towards Predicting Basin-Wide Invertebrate Organic Biomass and Production in Marine Sediments from a Coastal Sea

Burd

Macdonald

Roodselaar³

2012

PLoS ONE

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Detailed knowledge of environmental conditions is required to understand faunal production in coastal seas with topographic and hydrographic complexity. We test the hypothesis that organic biomass and production of subtidal sediment invertebrates throughout the Strait of Georgia, west coast of Canada, can be predicted by depth, substrate type and organic flux modified to reflect lability and age of material. A basin-wide database of biological, geochemical and flux data was analysed using an empirical production/biomass (P/B) model to test this hypothesis. This analysis is unique in the spatial extent and detail of P/B and concurrent environmental measurements over a temperate coastal region. Modified organic flux was the most important predictor of organic biomass and production. Depth and substrate type were secondary modifiers. Between 69–74% of variability in biomass and production could be explained by the combined environmental factors. Organisms <1 mm were important contributors to biomass and production primarily in shallow, sandy sediments, where high P/B values were found despite low organic flux. Low biomass, production, and P/B values were found in the deep, northern basin and mainland fjords, which had silty sediments, low organic flux, low biomass of organisms <1 mm, and dominance by large, slow-growing macrofauna. In the highest organic flux and biomass areas near the Fraser River discharge, production did not increase beyond moderate flux levels. Although highly productive, this area had low P/B. Clearly, food input is insufficient to explain the complex patterns in faunal production revealed here. Additional environmental factors (depth, substrate type and unmeasured factors) are important modifiers of these patterns. Potential reasons for the above patterns are explored, along with a discussion of unmeasured factors possibly responsible for unexplained (30%) variance in biomass and production. We now have the tools for basin-wide first-order estimates of sediment invertebrate production.

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Section: Discussionsupporting

confidence: 84%

Towards Predicting Basin-Wide Invertebrate Organic Biomass and Production in Marine Sediments from a Coastal Sea

Burd

Macdonald

Roodselaar³

2012

PLoS ONE

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“…The Shahejie Formation is further subdivided into Shahejie Member 1, Shahejie Member 2, Shahejie Member 3, and Shahejie Member 4. The oil bearing strata are mainly developed in the Shahejie Member 3 of the Paleogene Shahejie Formation, followed by the Minghuazhen Formation (Zhao et al, 2019;Zhu et al, 2018;Zhou & Sun, 2019). As the largest mid to deep oil field in the southern region of the Bohai Sea, efficient development of the oilfield is of great significance.…”

Section: Oilfield Overviewmentioning

confidence: 99%

Method and Description of Sedimentary System Characterization Based on Sequence Stratigraphy

Zhang,

Cai,

Yue

et al. 2024

GEP

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A Oilfield is the most representative mid to deep oil field in the Bohai Sea, with the main oil bearing intervals being the upper and middle Shahejie-3 sections of the Paleogene Shahejie Formation. By combining well seismic analysis, the middle section of Shahejie-3 is divided into high-level system tract and forced lake retreat system tract, corresponding to the II oil formation and I oil formation, respectively. Using sequence stratigraphy methods, based on seismic profiles and drilling lithological cycles, the high stand system tract is divided into 5 stages of delta progradation. The first and second stages are high angle S-type progradation with large sedimentary thickness, the third stage is oblique progradation, and the fourth and fifth stages are S-oblique composite progradation; By combining seismic data, we characterized the large-scale (8 small-scale) progradation bodies of 5 periods, clarified the distribution characteristics of reservoir planes, and laid the foundation for the later exploration of oilfield potential.

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Macroinvertebrate structure and trophic-functional organization in relation to environmental conditions in Dakhla Bay (southeast Morocco)

El Asri,

Errhif,

Tamsouri

et al. 2023

Biologia

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Estimates of autumntime benthic secondary production in Laizhou Bay and adjacent Bohai Sea waters

Cited by 4 publications

References 16 publications

Towards Predicting Basin-Wide Invertebrate Organic Biomass and Production in Marine Sediments from a Coastal Sea

Towards Predicting Basin-Wide Invertebrate Organic Biomass and Production in Marine Sediments from a Coastal Sea

Method and Description of Sedimentary System Characterization Based on Sequence Stratigraphy

Macroinvertebrate structure and trophic-functional organization in relation to environmental conditions in Dakhla Bay (southeast Morocco)

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