scholarly journals Coastal water environment suitability studies for green mussel cultivation in Pasaran Island, Lampung Bay

2019 ◽  
Author(s):  
Arief Wicaksono ◽  
Wahyu Lazuardi ◽  
Ariani Puji Astuti ◽  
Tika Maitela ◽  
Andiyanti Putri Estigade ◽  
...  
Keyword(s):  
Coastal Water ◽  
Water Environment ◽  
Green Mussel ◽  
Mussel Cultivation

Quantitative comparison of two collocated seafloor hydrophone arrays in a shallow coastal water environment

1997 ◽  
Vol 102 (5) ◽  
pp. 3119-3119 ◽  
Author(s):  
J. Mark Stevenson ◽  
Steven L. Schmidt ◽  
Gerald L. D’Spain ◽  
William S. Hodgkiss
Keyword(s):  
Coastal Water ◽  
Water Environment ◽  
Quantitative Comparison

scholarly journals PENILAIAN KONDISI EKOLOGI PERAIRAN UNTUK PENGEMBANGAN BUDIDAYA KERANG HIJAU (Perna viridis L.) DI PESISIR KUALA LANGSA, ACEH

2018 ◽  
Vol 10 (1) ◽  
pp. 57
Author(s):  
Andi Sagita ◽  
Rahmat Kurnia ◽  
Sulistiono Sulistiono
Keyword(s):  
Principal Component Analysis ◽  
Dissolved Oxygen ◽  
Current Velocity ◽  
Principal Component ◽  
Component Analysis ◽  
Perna Viridis ◽  
Green Mussel ◽  
Sampling Points ◽  
Mussel Culture ◽  
Mussel Cultivation

Penelitian ini bertujuan untuk menilai kondisi ekologi untuk pengembangan budidaya kerang hijau di pesisir Kuala Langsa, Aceh. Data ekologi perairan dikumpulkan di 12 titik sampling pada Agustus, September dan Oktober untuk mewakili musim hujan, serta Maret, April dan Mei untuk mewakili musim kemarau. Data dianalisis dengan analisis komponen utama (principal component analysis/PCA). Suhu perairan pesisir Kuala Langsa berkisar 25,5 – 35,6 oC dengan rata-rata 30,5 ± 1,7 oC; salinitas 25,9 – 34,0 ppt dengan rata-rata 29,9 ± 1,3 oC; pH 7,0 – 9,2 dengan rata-rata 8,1 ± 0,3; oksigen terlarut 3,9 – 6,8  mg/l dengan rata-rata 5,5 ± 0,5 mg/l; kecepatan arus berkisar 0,1 – 0,9 m/s dengan rata-rata 0,3 ± 0,1 m/s; serta kelimpahan fitoplankton berkisar 1,32 x 105 sel/m3 hingga 6,86 x 105 sel/m3 dengan rata-rata 3,88 x 105 ± 1,08 x 105 sel/ m3. PCA yang diaplikasikan pada seluruh data menghasilkan dua komponen utama, yaitu PC1 dan PC2 dengan nilai akar ciri (eigenvalue) sebesar 2,096 dan 1,770; dimana PC1 secara kumulatif dapat menjelaskan ragam seluruh data sebesar 34,9% yang dibangun oleh parameter salinitas, suhu dan plankton, sedangkan PC2 sebesar 64,4% yang dibangun oleh parameter oksigen terlarut dan salinitas.  Berdasarkan analisis dengan membandingkan parameter ekologi perairan untuk budidaya kerang hijau berdasarkan literatur maka dapat disimpulkan bahwa kondisi ekologi perairan pada musim hujan dan kemarau dapat mendukung pengembangan budidaya kerang hijau di pesisir Kuala Langsa, Aceh. The research aims to assessment of waters ecology condition for the development of green mussel cultivation in coastal of Kuala Langsa, Aceh. Data of waters ecology parameters collected at 12 sampling points in August, September and October to represent the rainy season, while March, April and May to represent the dry season. Data analyzed using principal component analysis (PCA). Temperature of  waters coastal Kuala Langsa ranged from 25.5 – 35.6 oC average of 30.5 ± 1.7 oC; salinity 25.9 – 34.0 ppt average of 29.9 ± 1.3 oC; pH 7.0 – 9.2 average of 8.1 ± 0.3; dissolved oxygen from 3.9 – 6.8 average of 5.5 ± 0.5 mg/l; current velocity of 0.1 – 0.9 m/s average of 0.3 ± 0.1 m/s; and abundance of fitoplankton ranged of 1.32 x 105 cell/m3 to 6.86 x 105 cell/m3. PCA applied to all data produced two principal component is PC1 and PC2 with a eigenvalue of 2.096 and 1.770; where PC1 on cumulatively can explain 34.9% of all data collected, with built by parameters of salinity, temperature and plankton, while PC2 is 64.4% with built by parameters dissolved oxygen dan salinity. Based on the analysis by comparing waters ecology parametes for green mussel culture based on the literature, it can be concluded that the waters ecology condition can support development of green mussel culture in coastal Kuala Langsa, Aceh.

A Fundamental Study on the Influences of Submarine Groundwater Discharge on Coastal Water Environment

2008 ◽  
Author(s):  
Shigeru Tabeta ◽  
Tsuguki Kinoshita
Keyword(s):  
Coastal Water ◽  
Early Stage ◽  
Water Discharge ◽  
Water Environment ◽  
Fundamental Study ◽  
Budget Analysis ◽  
Discharge Velocity ◽  
Submarine Groundwater ◽  
Coastal Sea ◽  
Terrestrial Water

It has been considered that most of the terrestrial water and contained substances are supplied into the ocean through the rivers. However, recent studies show that the submarine ground-water discharge (SGD) is also significant as the route of water and substances from the land to the ocean. In order to evaluate the influences of SGD on the coastal water environment, it is important to investigate the amount of SGD flux into the sea as well as the behaviour of discharged water and substances in the coastal sea. In the present study, the total SGD flux is estimated by the budget analysis of the target sea area, in which a parameter for water exchange between the coastal sea and the ocean is calculated by means of a numerical simulation by a hydro-dynamic model and a dynamic budget model. The behaviour of discharged groundwater is also investigated by hydraulic experiments and numerical simulations using non-hydrostatic model. It is found that the early-stage behaviour of the discharged submarine groundwater as buoyant plume could be categorized into three types due to the ratio of discharge velocity to the background horizontal current velocity.

USING OF MULTI-YEAR REMOTE SENSING DATA FOR THE NEVA BAY AND THE EASTERN GULF OF FINLAND FOR REVEALING PECULIARITIES OF ANTHROPOGENIC IMPACTS OF HYDRO-TECHNICAL FACILITIES BUILDING AND DREDGINGS ON THE COASTAL AND WATER ENVIRONMENT

2017 ◽  
Author(s):  
Leontina Sukhacheva ◽  
Leontina Sukhacheva
Keyword(s):  
Remote Sensing ◽  
Coastal Water ◽  
Anthropogenic Impacts ◽  
Water Environment ◽  
Water Dynamics ◽  
Spatiotemporal Variability ◽  
Gulf Of Finland ◽  
Anthropogenic Factors ◽  
Neva Bay

This paper is devoted to the use of long-term remote sensing (RS) data for assessment of anthropogenic impacts on the coastal water environment of the Neva Bay (NB) and the eastern part of the Gulf of Finland (EGOF), caused by construction of hydro-ingineering facilities, operations for land reclamation, dredging and underwater dumping. The study period includes past four decades for which airborne and satellite data are available. Results of using long-term RS data sets for monitoring and studying coastal water environment, for estimation of levels of water contamination by suspended matter (SM), for revealing spatiotemporal variability of SM distribution under the influence of natural and anthropogenic factors, for studying features of surface water dynamics and of phytoplankton development, are discussed.

scholarly journals Does Coastal Local Government Competition Increase Coastal Water Pollution? Evidence from China

2020 ◽  
Vol 17 (18) ◽  
pp. 6862
Author(s):  
Weiteng Shen ◽  
Qiuguang Hu ◽  
Xuan Yu ◽  
Bernadette Tadala Imwa
Keyword(s):  
Water Pollution ◽  
Local Government ◽  
Coastal Water ◽  
Fixed Effects ◽  
Positive Impact ◽  
Water Environment ◽  
Significance Test ◽  
Pressure Group ◽  
Fiscal Pressure ◽  
The Impact

China has formulated many policies and regulations for the management of the coastal water environment. However, the coastal water environment has not been significantly improved. The perspective of local government competition can provide an explanation for this phenomenon. This study uses panel data comprising 48 coastal cities in China from 2004 to 2017 as bases explore the impact of coastal local government competition on coastal water pollution by using a two-way fixed-effects panel regression model. Results show that coastal local government competition increased coastal water pollution. However, a sub-sample estimation based on fiscal pressure shows that coastal local government competition only increased the coastal water pollution of the high fiscal pressure group, and its impact on the coastal water pollution in the low financial pressure group failed to pass the significance test. In addition, sub-sample estimation based on different periods shows that the impact of coastal local government competition on coastal water pollution was not significant before 2008, but showed a significant positive impact after 2008.

scholarly journals Study on the Suitability of Green Mussel (Perna viridis) Culture in North Sea Waters of Java, Ketapang Village, Tangerang District, Banten Province

2019 ◽  
Vol 8 (3) ◽  
pp. 184
Author(s):  
Rinrin Haryanti ◽  
Achmad Fahrudin ◽  
Handoko Adi Susanto
Keyword(s):  
Data Analysis ◽  
North Sea ◽  
Sampling Method ◽  
Perna Viridis ◽  
Purposive Sampling ◽  
Green Mussel ◽  
Fisheries Resources ◽  
The Village ◽  
Mussel Cultivation

Green mussel is one of the fisheries resources have to be developed to prospective higheconomically valuable commodities .This is proportional to the nutrition beef , eggs and chicken .This indicates that green shell are mostly potential can be developed through the cultivation .The study is done at july until august sea north of java in 2019 , the village Ketapang , Mauk district , Tangerang , Banten .The data under the four station representing village ketapang waters .The methodology used by approaching purposive sampling method uses the data analysis by the ratings point .The village ketapang skoring waters that is both life and research sites support green shell that could be used as the green mussel cultivation .

USING OF MULTI-YEAR REMOTE SENSING DATA FOR THE NEVA BAY AND THE EASTERN GULF OF FINLAND FOR REVEALING PECULIARITIES OF ANTHROPOGENIC IMPACTS OF HYDRO-TECHNICAL FACILITIES BUILDING AND DREDGINGS ON THE COASTAL AND WATER ENVIRONMENT

2017 ◽  
Author(s):  
Leontina Sukhacheva ◽  
Leontina Sukhacheva
Keyword(s):  
Remote Sensing ◽  
Coastal Water ◽  
Anthropogenic Impacts ◽  
Water Environment ◽  
Water Dynamics ◽  
Spatiotemporal Variability ◽  
Gulf Of Finland ◽  
Anthropogenic Factors ◽  
Neva Bay

This paper is devoted to the use of long-term remote sensing (RS) data for assessment of anthropogenic impacts on the coastal water environment of the Neva Bay (NB) and the eastern part of the Gulf of Finland (EGOF), caused by construction of hydro-ingineering facilities, operations for land reclamation, dredging and underwater dumping. The study period includes past four decades for which airborne and satellite data are available. Results of using long-term RS data sets for monitoring and studying coastal water environment, for estimation of levels of water contamination by suspended matter (SM), for revealing spatiotemporal variability of SM distribution under the influence of natural and anthropogenic factors, for studying features of surface water dynamics and of phytoplankton development, are discussed.

scholarly journals Coastal water environment regulation and simulation based on tidal power control

2018 ◽  
Vol 246 ◽  
pp. 02027 ◽  
Author(s):  
Hua Wang ◽  
Wei Xu ◽  
Pei Liu ◽  
Jinhe Zhu
Keyword(s):  
Coastal Water ◽  
Water Exchange ◽  
Spring Tide ◽  
Water Environment ◽  
Coastal Areas ◽  
Water Diversion ◽  
Quality Model ◽  
Water Control ◽  
Tidal Power ◽  
Effect Of Water

As the carrier of water resources, water environment and water ecology, river course is very important to human and ecological environment in coastal areas. The rapid economic development of coastal areas needs to take into account the improvement of regional water environment in order to achieve a higher level of development. The characteristics of coastal water environment are closely related to tidal fluctuation. It is an important direction for coastal water control to improve the water environment and restore the self-purification capacity of the river by guiding and draining the tidal power. In this paper, the YACHONG River Basin, which borders Macau and Zhuhai, is selected as the study area. The semi-exchange period and water exchange rate are taken as the main evaluation indexes. The water quantity and quality model is used to simulate the scenario model and analyze the effect of water diversion and drainage regulation in different tidal periods. The results show that, compared with the drainage dispatch during spring tide, the drainage dispatch during neap tide prolongs the water exchange time, and the effect of water exchange is obviously better than that during spring tide. The research results of this paper provide reference for water environmental regulation in coastal area.

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