Apr. 2025

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2021 Vol. 40, No. 4

Cover
2021, 40(4): .
Abstract:
2021-4 Contents
2021, (4): 1-2.
Abstract:
Physical Oceanography, Marine Meteorology and Marine Physics
Response of the mixed layer depth and subduction rate in the subtropical Northeast Pacific to global warming
Ruibin Xia, Bingrui Li, Chen Cheng
2021, 40(4): 1-9. doi: 10.1007/s13131-021-1818-y
Abstract:
The response of the mixed layer depth (MLD) and subduction rate in the subtropical Northeast Pacific to global warming is investigated based on 9 CMIP5 models. Compared with the present climate in the 9 models, the response of the MLD in the subtropi...
Statistical characteristics and thermohaline properties of mesoscale eddies in the Bay of Bengal
Wei Cui, Chaojie Zhou, Jie Zhang, Jungang Yang
2021, 40(4): 10-22. doi: 10.1007/s13131-021-1723-4
Abstract:
The statistical characteristics and vertical thermohaline properties of mesoscale eddies in the Bay of Bengal are studied from the view of satellite altimetry data and Argo profiles. Eddy propagation preferences in different lifetimes, eddy evolution...
Marine Chemistry
234U/238U as a potential tracer for tracking water masses mixing in the northern East China Sea
Tianwei Shang, Xueyan Jiang, Chenqing Yu
2021, 40(4): 23-31. doi: 10.1007/s13131-021-1773-7
Abstract:
The optimum multiparameter (OMP) method was often used to determine the percentages of water masses based on temperature, salinity and other parameters, like nutrient or dissolved oxygen (DO). There are a number of water masses in the East China Sea ...
Determination and ecological risk assessment of arsenic and mercury in sediments from the Changjiang River Estuary and adjacent East China Sea
Yu’na Zhang, Qianwen Wang
2021, 40(4): 32-38. doi: 10.1007/s13131-021-1772-8
Abstract:
Arsenic (As) and mercury (Hg) are pollutants presented in marine environment. A process of atomic fluorescence spectrometry was proposed for the simultaneous determination of As and Hg in marine sediment samples (n = 38) collected from the Changjiang...
Marine Geology
Spreading rate dependence of morphological characteristics in global oceanic transform faults
Yiming Luo, Jian Lin, Fan Zhang, Meng Wei
2021, 40(4): 39-64. doi: 10.1007/s13131-021-1722-5
Abstract:
We quantified the systematic variations in global transform fault morphology, revealing a first-order dependence on the spreading rate. (1) The average age offset of both the full transform and transform sub-segments decrease with increasing spreadin...
Relationships between the sound speed ratio and physical properties of surface sediments in the South Yellow Sea
Guanbao Li, Jingqiang Wang, Xiangmei Meng, Baohua Liu, Guangming Kan, Guozhong Han, Qingfeng Hua, Yanliang Pei, Lei Sun
2021, 40(4): 65-73. doi: 10.1007/s13131-021-1764-8
Abstract:
Building empirical equations is an effective way to link the acoustic and physical properties of sediments. These equations play an important role in the prediction of sediments sound speeds required in underwater acoustics. Although many empirical e...
Marine Biology
Levels and patterns of genetic variation in Pampus minor: Assessment of a mitochondrial DNA control region sequence
Yuan Li, Liyan Zhang, Jing Zhang, Cheng Liu, Longshan Lin
2021, 40(4): 74-83. doi: 10.1007/s13131-021-1784-4
Abstract:
Pampus minor is an important commercial fish. Due to the similarity of external morphological characteristics among the genus Pampus species, P. minor has often been identified as the juvenile group of both P. cinereus and P. argenteus. While little ...
Growth marks in eyestalks of Portunus trituberculatus: A development of technique and evidence of molting
Bilin Liu, Jian Zhang, Jiang Rui, Zhenyu Ni, Chang Shu
2021, 40(4): 84-91. doi: 10.1007/s13131-021-1774-6
Abstract:
The analysis of growth bands in the eyestalk has been increasingly used for estimating crustacean ageing and molting. In this study, we developed an effective method to process and observe the eyestalk microstructure of the swimming crab (Portunus tr...
Diurnal changes in bacterial communities in oxic surface and hypoxic middle seawater layers of the Changjiang River Estuary
Yan Huang, Lei Yuan, Yingping Fan, Habib U Rehman Jakhrani, Jianxin Wang
2021, 40(4): 92-106. doi: 10.1007/s13131-021-1778-2
Abstract:
The Changjiang River Estuary (CRE) in the East China Sea suffers from seasonal hypoxia in summer. The vertical distributions and seasonal changes of microbial communities in the CRE were well documented. However, little is known about the diurnal cha...
Characterization and antifouling activity analysis of extracellular polymeric substances produced by an epibiotic bacterial strain Kocuria flava associated with the green macroalga Ulva lactuca
Mohammad Abdulaziz Ba-akdah, Sathianeson Satheesh
2021, 40(4): 107-115. doi: 10.1007/s13131-020-1694-x
Abstract:
Extracellular polymeric substances (EPS) are present externally to the microorganisms and play an important role in attachment and biofilm formation. These polymers possess antibacterial and antifouling activities. In this study, the antifouling acti...
The role of biocrusts in nitrogen cycling on the tropical reef islands, South China Sea
Lin Wang, Si Zhang, Jie Li
2021, 40(4): 116-126. doi: 10.1007/s13131-021-1783-5
Abstract:
Harboring polyextremotolerant microbial topsoil communities, biological soil crusts (biocrusts) occur across various climatic zones, and have been well studied in the terrestrial drylands. However, little is known about the functional metabolic poten...
Marine Technology
A second order random wave model for predicting the power performances of a wave energy converter
Yingguang Wang
2021, 40(4): 127-135. doi: 10.1007/s13131-021-1845-8
Abstract:
The power performances of a point absorber wave energy converter (WEC) operating in a nonlinear multi-directional random sea are rigorously investigated. The absorbed power of the WEC Power-Take-Off system has been predicted by incorporating a second...
Marine Information Science
Comparisons of OCO-2 satellite derived XCO2 with in situ and modeled data over global ocean
Siqi Zhang, Yan Bai, Xianqiang He, Haiqing Huang, Qiangkun Zhu, Fang Gong
2021, 40(4): 136-142. doi: 10.1007/s13131-021-1844-9
Abstract:
Atmospheric CO2 is one of key parameters to estimate air-sea CO2 flux. The Orbiting Carbon Observatory-2 (OCO-2) satellite has observed the column-averaged dry-air mole fractions of global atmospheric carbon dioxide (XCO2) since 2014. In this study, ...