The international journal of marine science最新文献

Analysis of the Functions and Values of Marine Ecosystems 海洋生态系统的功能与价值分析

The international journal of marine science Pub Date : 2023-01-01 DOI: 10.5376/ijms.2023.13.0003

Jin Wu, Jia Xuan

引用次数: 0

Classification and Main Characteristics of Marine Ecosystems 海洋生态系统的分类与主要特征

The international journal of marine science Pub Date : 2023-01-01 DOI: 10.5376/ijms.2023.13.0002

Jin Wu, L. Jin

引用次数: 0

Basic Concepts and Practices of Marine Ranching: A Review from Theory to Practice 海洋牧场的基本概念与实践:从理论到实践的回顾

The international journal of marine science Pub Date : 2023-01-01 DOI: 10.5376/ijms.2023.13.0001

R. Mai

引用次数: 0

Muscular Coloration Diversity and Microsatellite Genetic Differentiation for the Clam Paphia amabilis (Philippi, 1847) 蛤的肌肉颜色多样性和微卫星遗传分化(Philippi, 1847)

The international journal of marine science Pub Date : 2021-02-26 DOI: 10.5376/IJMS.2021.11.0001

S. Wang, Xing Wu, F. Yu, Ting-Cong Liao, Qiongzhen Li, B. Luo, Yan Wang

{"title":"Muscular Coloration Diversity and Microsatellite Genetic Differentiation for the Clam Paphia amabilis (Philippi, 1847)","authors":"S. Wang, Xing Wu, F. Yu, Ting-Cong Liao, Qiongzhen Li, B. Luo, Yan Wang","doi":"10.5376/IJMS.2021.11.0001","DOIUrl":"https://doi.org/10.5376/IJMS.2021.11.0001","url":null,"abstract":"Paphia amabilis is an important fishery shellfish widely distributing along Southeast Asia coast. The muscles of its foot and siphons are commonly colored bright red-orange due to the presence of C37 skeletal carotenoids. However, 10.5%-18.6% of yellow-muscled individuals (YMs) were found among the four P . amabilis wild samples from Vietnam (Co To island, CT) and China (Beihai, BH/BHA, Guangxi Province; and Zhanjiang, ZJ, Guangdong Province), the north of Beibu Gulf, South China Sea. Twenty genomic microsatellite markers were developed and 12 were employed to analyze the population genetic differentiation of three geographical populations (CT, BH, and ZJ, n=32/population), as well as YM and RM (red-muscled) subpopulations. Medium levels of genetic diversity were detected in all three populations with the number of alleles ranging from 4-21 (8.4±4.5) for CT, 4-16 (7.6±3.3) for BH and 4-18 (7.5±3.7) for ZJ. The average observed/expected heterozygosities were 0.66/0.66 for CT, 0.62/0.63 for BH, and 0.55/0.62 for ZJ, respectively. Total 4 out of 36 tests of microsatellites deviated from Hardy–Weinberg equilibrium (HWE, P <0.05 after Bonferroni correction), all in ZJ population due to the presence of null alleles suggested by MICRO-CHECK. Exact test indicated highly significant differentiations ( F ST ) between Vietnamese and two Chinese populations (0.099/0.123 between CT and BH/ZJ). No allele of any microsatellite marker was found significantly associated with muscularcoloration of P. amabilis , consequently no convergent microsatellite genetic differentiation presents between YM and RM subpopulations, supporting that epigenetic factor might play an important role in carotenoids accumulation of P. amabilis .","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82639173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential Bioactive Compound Seaweed Halimeda micronesica and Halimeda macroloba as Antioxidant and Phytochemical Screening of Active Seaweed Extracts from Maspari Island 具有潜在生物活性的复方微褐藻和大褐藻抗氧化作用及马斯帕里岛活性海藻提取物的植物化学筛选

The international journal of marine science Pub Date : 2020-10-16 DOI: 10.5376/IJMS.2020.10.0006

M. Hendri, Oktaviana Lubis Delini, Rozirwan Rozirwan

引用次数: 0

Whale fall: the Creation of A Unique Marine Ecosystem 鲸鱼坠落:一个独特的海洋生态系统的创造

The international journal of marine science Pub Date : 2020-06-04 DOI: 10.5376/ijms.2020.10.0004

Bess X.Y. Chen, May H.M. Wang

引用次数: 0

Total Hydrocarbon and Heavy Metal Concentrations in Body Parts of Fiddler Crab (Uca tangeri) (Ocipodidae) in the Niger Delta, Nigeria 尼日利亚尼日尔三角洲招潮蟹(Uca tangeri) (Ocipodidae)身体部位的总碳氢化合物和重金属浓度

The international journal of marine science Pub Date : 2020-04-30 DOI: 10.5376/ijms.2020.10.0001

Aroloye O. Numbere

{"title":"Total Hydrocarbon and Heavy Metal Concentrations in Body Parts of Fiddler Crab (Uca tangeri) (Ocipodidae) in the Niger Delta, Nigeria","authors":"Aroloye O. Numbere","doi":"10.5376/ijms.2020.10.0001","DOIUrl":"https://doi.org/10.5376/ijms.2020.10.0001","url":null,"abstract":"This study is based on the hypothesis that the burrowing habit of fiddler crabs in polluted environment will predispose them to heavy metal contamination. The study was carried out in Eagle Island, a mangrove community. Thirty fiddler crabs ( Uca tangeri ) were captured by hand and butchered into parts and oven dried at 70°C for 48 hours. They were sent to laboratory to determine total hydrocarbon content (THC), Cadmium (Cd), Zinc (Zn) and Lead (Pb) concentrations. The laboratory procedure involved measurement by spectrophotometric method using the HACH DR 890 colorimeter (wavelength 420 nm) for heavy metals and microwave accelerated reaction system (MARS Xpress, North Carolina) for THC. The result indicate that there was no significant difference in THC and heavy metal concentration between crab parts (F 6, 49 = 0.32, P=0.925). However, Zinc had the highest concentration in the crab parts followed by Lead and Cadmium. Zinc was the highest in body tissue (83.57±17.04) mg/L followed by intestine (70.59±1.54) mg/L and ventral shell (67.44±1.1) mg/L. Lead was highest in ventral shell (44.5±34.5) mg/L while Cadmium was highest in carapace (10.02±3.99) mg/L. The order of concentration in the body parts of U. tangeri is Zn>Pb>Cd>THC. THC and Lead were higher in males than in females while Zinc and Cadmium were higher in females. External parts have higher THC, Cd and Pb while internal parts have higher Zn. This result indicates that heavy metals bioaccumulated in fiddler crabs, which can get biomagnified in humans if consumed.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85378363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Cloning and Expression Analysis of Cdc25 Gene of Sipunculus nudus in Oocytes 裸星虫卵母细胞Cdc25基因的克隆及表达分析

The international journal of marine science Pub Date : 2020-04-22 DOI: 10.5376/ijms.2020.10.0002

Yong-ping Su, Jianmin Ye, Qi Liu, Yetao Zeng, Chengshun Zhang, Qingheng Wang

{"title":"Cloning and Expression Analysis of Cdc25 Gene of Sipunculus nudus in Oocytes","authors":"Yong-ping Su, Jianmin Ye, Qi Liu, Yetao Zeng, Chengshun Zhang, Qingheng Wang","doi":"10.5376/ijms.2020.10.0002","DOIUrl":"https://doi.org/10.5376/ijms.2020.10.0002","url":null,"abstract":"Cell division cycle 25 (Cdc25) is an important dual specificity phosphatase, which plays an important role in regulating the process of oocyte meiosis and embryo development. In this study, the full-length cDNA of Sn-Cdc25 was cloned from S. nudus using RACE technology. The results show that Sn-Cdc25 is 4 130 bp in length, including 3′ UTR 1 849 bp and 5′ UTR 427 bp. The Open reading frame (ORF) is 1 854 bp and encodes 617 amino acids. Sequence analysis shows that the molecular weight of Sn-Cdc25 protein is 69.58 kD, with two typical Cdc25 protein domains: M-phase inducer phosphatase domain and Rhodanese-like domain, and the active site sequence HCX 5 R that can catalyze the dephosphorylation process. Multi-sequence alignment finds that the C-terminal homology is higher than the N-terminal. The tertiary structure prediction shows that the spatial conformation of Cdc25 homologous protein and its active site are highly conservative. A total of 5 Motifs are found in Motif analysis, of which Motif 1 and Motif 2 are Paxillin LD motif and MYND domain binding motif, respectively. Phylogenetic tree analysis shows that Cdc25 is clustered into two branches: invertebrates and vertebrates. RT-PCR results show that the expression of Sn-Cdc25 , with two peaks, is significantly different in different developmental stages of oocytes. The increase in the expression of Sn-Cdc25 from primary vitellogenic stage to the late of active vitellogenic stage (O1-O3) may be related to the process of Sn-Cdc25 promoting DNA replication. When the oocytes entering metanephridium from coelomic fluid, the rapid rise of Sn-Cdc25 expression may be beneficial to the activation of maturation promoting factor (MPF). The above results have accumulated basic data for further understanding of the developmental mechanism of Sipuncula oocytes and for optimization of artificial breeding techniques.","PeriodicalId":22529,"journal":{"name":"The international journal of marine science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81271581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cultivation of Seaweed E.spinosum in Open Waters Using Bags Methods Around Pahawang Island Waters, South Lampung 南楠榜岛巴哈旺岛海域开放水域袋法养殖棘藻

The international journal of marine science Pub Date : 2020-01-01 DOI: 10.5376/ijms.2020.10.0005

M. Hendri

引用次数: 0

Development of Microsatellite Markers for the Hermatypic Coral Porites lutea 雌雄同体珊瑚孔隙微卫星标记的建立

The international journal of marine science Pub Date : 2020-01-01 DOI: 10.5376/ijms.2020.10.0003

Fuyu Li, Dandan Chen, Yuanchao Li, Shiyao Li, Jingqiu Hou, Daoru Wang, Yan Wang

引用次数: 2