scholarly journals Spatiotemporal Organic Carbon Distribution in the Capo Peloro Lagoon (Sicily, Italy) in Relation to Environmentally Sustainable Approaches

Water ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 108
Author(s):  
Marilena Sanfilippo ◽  
Marco Albano ◽  
Antonio Manganaro ◽  
Gioele Capillo ◽  
Nunziacarla Spanò ◽  
...  

Transitional water environments represent very ecologically interesting areas, which provide various ecosystem services, both concerning biodiversity protection and sustainable fruition of resources. In this way, the evaluation of total carbon and its components, chlorophyll, and chemical and physical parameters is of fundamental importance to deepen the dynamics of these peculiar natural areas. Commercial interests linked to the biological resources of these areas are often not well exploited in relation to their sustainability, due to lack of knowledge. In this study, we investigated the distribution of total organic carbon, chlorophyll, and other related physical and chemical parameters in the natural Lagoon of Capo Peloro (Eastern Sicily), to deepen the knowledge on the carbon equilibrium of these transitional basins. Collected data showed different trends for all parameters, mainly related to different seasons and water exchanges with sea. The influences of primary production sources and farmed molluscs were not negligible and deserve to be further investigated in the future. The results obtained reveal good margins for the possibility of environmentally sustainable exploitation of natural resources in both basins, but at the same time, there is a need for a more detailed knowledge of anthropogenic impacts on the area.

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Christian Tokah ◽  
Suzanne L. Undap ◽  
Sammy N.J. Longdong

The aim of this study was to measure and assess the physical and chemical parameters of water quality in the area of ​​fixnet cage cultureat Lake Tutud Tombatu TigaVillagewhich included temperature, pH, DO, TDS, NO3, NO2, NH3 and PO4 in a different time.This research was conducted from August to November 2016. The research activities consisted of direct measurements in the field (in situ) using a Horiba instrument and laboratory analysis (ex situ) at the Agency for Industrial Research and Development Research Institute of Standardization and Industrial Manado. Determination points were done by purposive sampling which refers to the physiographic location wherever possible in order to represent or describe these waters.Water quality measured at4 stations using a Horiba at a depth of 0.5 meters from the bottom of the lake.Station I represented Inlet water, Station II where the cultivation A, Station III where the cultivation B and Station IVwhere no cultivation. The data obtained and collected were primary data i.e., measurement of physical and chemical parameters of water quality as well as watching for signs of sick fish, dead fish, and the growth of farmed fish.The results showed the water temperature ranged between 28-29 ° C, TDS 0266-0412 mg/L and chemical parameters for dissolved oxygen 2-5 mg/L, pH 7-8 and for the results of laboratory analysis, N03(0.7 - 6.3 mg/L), NO2(0001-0002 mg/L), NH3 (0180-1920 mg/L), PO4(0020-0209 mg/L). In general, the existence of water quality of lake Tutud were still in good condition except for NH3 concentrationthat exceeded quality standard limitsof Government Regulation No. 82 of 2001. Basically lake Tutud can still be used for fish farming, but the addition of new cages were not recommended.   Keywords: Lake Tutud,water quality, physical parameters, chemical parameters, fix net cage


2019 ◽  
Vol 280 ◽  
pp. 03006
Author(s):  
Suphia Rahmawati ◽  
Andik Yulianto ◽  
Ahmad Traju Pangentas Wijayaningrat

Communal wastewater treatment plant (CWWTP) has been chosen as one system to treat domestic wastewater due to simple technology, flexible management, and cost-effectiveness. There are 376 CWWTP have been recorded by Environmental Agency of Yogyakarta (DLH DIY) that spread in five regencies. Monitoring results on CWWTP effluent showed that some physical and chemical parameters did not meet the domestic wastewater standard. Therefore, evaluation of removal efficiency in terms physical and chemical parameters are necessary. The samples were collected from nine CWWTP in Banguntapan, Bantul and Gamping sub-districts. The physical and chemicals parameters (pH, TSS, BOD, COD, Ammonia, oil, and grease) of influent and effluent from CWWTP are analyzed based on National Standard of Indonesia (SNI) for domestic wastewater. The results show that BOD (>70%) and TSS (>50%) have better removal effectiveness compare with COD, ammonia, oil, and grease (40%). Overall, CWWTP in Banguntapan subdistrict has better performance compare with CWWTP in Bantul subdistrict.


Author(s):  
Hanny Meirinawati ◽  
Hanif Budi Prayitno ◽  
Lisa Fajar Indriana ◽  
Muhammad Firdaus ◽  
A'an Johan Wahyudi

Sea cucumbers are an essential fishery resource. Therefore, effective aquaculture methods should be developed to achieve their optimal production. Sea cucumbers are susceptible to various environmental factors, one of which is water quality. Monitoring water quality based on physical and chemical parameters should be useful to the rearing system in aquaculture. In practical use, farmers usually monitor only temperature, salinity, and pH, neglecting the essential role of chemical parameters. This review focuses on and urges the monitoring of physical and chemical parameters. We explored the water quality parameters that may be crucial to the sea cucumber rearing system, including temperature, salinity, pH, dissolved oxygen, ammonia, turbidity, particulate organic matter, total nitrogen, nitrate, nitrite, ammonium, silicate, and phosphate. Furthermore, this paper presents a practical way to monitor the aquaculture or rearing system of sea cucumbers. It is suggested that temperature and salinity are the crucial physical parameters, while the essential chemical parameters are phosphate, nitrate, and ammonia.


Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1533
Author(s):  
Stefano Paolo Marelli ◽  
Luisa Zaniboni ◽  
Manuela Madeddu ◽  
Ahmad Abdel Sayed ◽  
Maria Giuseppina Strillacci ◽  
...  

The aim of the present study is to investigate the physical parameters and fatty acid composition and related nutritional parameters of market-procured table eggs from Milanino, Mericanel della Brianza and Valdarnese Bianca hens compared to two commercial hybrid strains’ eggs to determine characterizing quality traits for traditional breeds conservation and valorization through high quality niche products. Fifty-four market eggs by three traditional breeds (Mericanel della Brianza—MRC; Milanino—MLN; and Valdarnese Bianca—VLD) and two commercial hybrid strains (Commercial Hybrid Brown—CHB; Commercial Hybrid White—CHW) have been analyzed—physical parameters, fatty acids profile and atherogenic and thrombogenic indexes were investigated. A General Linear Model—GLM was applied to data analysis with breed and genetic origin (traditional breed—TRD; commercial hybrid—HYB) as sources of variation. Two Principal Component Analyses (PCA) were carried out with physical parameters and fatty acid parameters as variables. Eggs produced by traditional breeds MRC MLN and VLD differentiate from eggs produced by commercial hybrids CHB and CHW in physical and chemical parameters (fatty acids parameters). The nutritional value of the traditional eggs has been demonstrated to be higher considering the yolk content, the PUFA fraction, the more favorable n6/n3 ratio and the atherogenic and thrombogenic indexes. Commercial layers’ eggs revealed their higher commercial value based on weight, albumen content and percentage of edible content.


2020 ◽  
Vol 5 (2) ◽  
pp. 59
Author(s):  
Guntar Marolop S ◽  
Peppy Herawati

Peat soil is a type of soil that is formed from the accumulation of plant debris which undergoes a decomposition process. This is why peat soil contains high organic matter and is acidic. Peat soils will affect the parameters of a surrounding aquatic ecosystem, such as the Rasau peat swamp ecosystem in the village of Rantau Panjang. Peat swamp water parameters are influenced by substances stored in the peat such as having a low pH, high heavy metal content, and having high TSS, TDS, BOD and COD values. The water parameter of peat swamp with mangrove vegetation is better than that of peat swamp that does not have mangrove vegetation. This can be seen if the peat swamp water parameters are laboratory tested. The physical parameters of water, namely temperature, TDS, DHL, color, and turbidity were lower in the Rasau peat swamp with mangrove vegetation compared to the non-vegetated ones. The chemical parameters of the Rasau peat swamp with high density mangrove vegetation such as higher pH, and lower BOD, COD, and iron (Fe) when compared to peat swamps without mangrove vegetation. However, the physical and chemical parameters of vegetated and non-vegetated peat swamps are still above the PPRI No. 82 of 2001.


2020 ◽  
Vol 4 (2) ◽  
pp. 90-98
Author(s):  
Murugesan Sakthivadivel ◽  
Arunachalam Nirmala ◽  
Jeyabharathi Sakthivadivel ◽  
Rajaratnam Rajiv Mukhilan ◽  
Samuel Tennyson

Water is essential to sustain life, and an adequate, safe and accessible supply must be available to all as improving access to safe drinking water can result in tangible benefits to health. In the present study, eighteen water samples from six different study area, viz., Red Hills, T. Nagar, Saidapet, Ashok Nagar, Alandur and Guindy of metropolitan Chennai were tested for their physicochemical and biological parameters, of which Red Hills served as control area. Results with regard to the physical parameters, showed no variation in the colour of water samples which was clear except for control as it appeared light brown. The odour of samples collected from all six study areas was observed to be constant and agreeable. The water temperature, turbidity, electrical conductivity and total dissolved solids for all six study areas ranged from 28.7 to 29.7°C, 3.7 to 11.7NTU, 723.3 to 1099.7μS/cm, and 396.7 to 805.0mg/L. The values of chemical parameters represented by pH, total hardness, total alkalinity, sulphates and flourides ranged from 7.7 to 8.0, 128.0 to 503.3mg/L, 13.3 to 50.0mg/L, 106.6 to 224.0mg/L, and 0.6 and 1.5mg/L. All the samples were found to be free from coliforms except for the control in the case of biological parameters. Overall results indicate that the physical and chemical parameters were found to be within the permissible limits set by standards and biological contamination was absent in the samples except in control which is a natural reservoir.


Author(s):  
Bunga Nasib Manalu ◽  
Arman Harahap

The river is one of the forms of the aquatic ecosystem is open, which is also prone to the existence of a pollution.Pollution that occurs in a river is usually caused by environmental conditions and human activities around the river.The river water Pandayangan is one of the rivers that are widely used by the local community for a variety of activities, namely as a tourist attraction, bathing, washing, and others. This research is a descriptive research that aims to determine the water quality of the river in physics and chemistry of the location of the research based on the raw water quality. Research conducted at three locations and sampling the water for the third observation stations do the measurement of physical parameters such as Temperature, Color, and Turbidity while the chemical parameters include pH, BOD, Ammonia, Nitrite, Organic Number, Alkaliniti and Asiditi. Based on the results of testing the physical and chemical parameters then be concluded that the water quality of the river Pandayangan still meet the quality standards of water quality class B or raw water.


2020 ◽  
Author(s):  
Supratman

The main cause of damage to the mangrove vegetation is the lack of attention and management are not optimal by the public and Associated Stake Holder. Some of the problems in the management of mangrove forests in Indonesia, among others, land controversy that made pond, thus causing damage to habitat and biodiversity in the region. Preliminary study findings that in coastal areas Labuhan Sawo Sumbawa most people have made the area the growth of mangrove area into ponds. One alternative to overcome these problems we need information about the composition and structure of mangroves and mangrove damage levels in the target area. This study aims to determine the composition and structure of vegetation, the extent of damage, physical and chemical parameters and morphometric structure of leaves in the mangrove ecosystem in coastal areas Labuhan Sawo Sumbawa regency. As for the planning study done in 2015 with the allocation of time from May to December Belan. The method used is the method of terraced lanes to two lanes, each lane there are four six plots, each individual tree (Plot 10 x 10 meters) to the level of 5 x 5 m saplings and seedlings to 2 x 2 m. The focus of the parameters analyzed in this study is the degree of damage to the mangrove, composition and structure, chemical and physical parameters morphometric leaf structure. The output of this research is to add insight knowledge, especially with regard to the level of damage and mangrove vegetation. After reporting the progress of the final results in this study that the findings of the field, there are four types of mangrove ie Sonneratia alba, Sonneratia casseolaris, Avicenia officinalis, and Rhizopora sp. The type of dominant vegetation is the type Sonneratia alba with important value index poho level, (IVI = ....%), Level Stake (IVI = ... ..%) Seedlings, (IVI = ...%). Results of analysis of mangrove forest vegetation density in Labuhan Sawo Sumbawa Besar classified medium category with Value (IVI = 1099.56 tree). Results of analysis of Physical and Chemical Parameters in the study area is for temperatures ranging from 30, 1 C. Salinity About 152 ppm. And PH 6.74. From the results of the study of temperature, salinity, and pH of the growth of mangroves in Labuhan Sawo still qualify optimum weeks to grow and develop properly. The results of the analysis Morphometrics leaves at four stations. At Station 1 at 16.87%, station 2 at 17.25%. Station 3 at 17.69% and 18.51% at station 4. This means that overall the value of mangrove found there was a tendency kooefesien morphometric leaf morfometriknya experienced dispersal, meaning the leaves are unhealthy. As a recommendation in this area should be the rehabilitation of mangrove ecosystems in the region Labuhan Sawo Sumbawa, then build kemitaraan or cooperation Stakeholder linked to local communities by replanting mangrove trees and make regulations concerning laragan over the puncture of land in coastal areas that could potentially damage the mangrove ecosystem ,


1991 ◽  
Vol 147 ◽  
pp. 161-175
Author(s):  
C. M. Walmsley

The current state of our knowledge of the physical parameters and the chemical composition of dense cores in molecular clouds is discussed. In particular, I summarize what is known about the rate at which molecules condense out on grain surfaces. I discuss in turn: a) dense cores in nearby dust complexes such as Taurus, b) clumps in regions of massive star formation such as Orion and M17, c) hot dense cores near to newly formed O stars such as the Orion-KL hot core and d) the high density condensations which give rise to interstellar masers. Recent work on each of these categories is reviewed with emphasis on the chemical abundance determinations and estimates of the local density and temperature. Particular attention is given to recent work on OH, methanol, and ammonia masers.


1991 ◽  
Vol 147 ◽  
pp. 161-175
Author(s):  
C. M. Walmsley

The current state of our knowledge of the physical parameters and the chemical composition of dense cores in molecular clouds is discussed. In particular, I summarize what is known about the rate at which molecules condense out on grain surfaces. I discuss in turn: a) dense cores in nearby dust complexes such as Taurus, b) clumps in regions of massive star formation such as Orion and M17, c) hot dense cores near to newly formed O stars such as the Orion-KL hot core and d) the high density condensations which give rise to interstellar masers. Recent work on each of these categories is reviewed with emphasis on the chemical abundance determinations and estimates of the local density and temperature. Particular attention is given to recent work on OH, methanol, and ammonia masers.


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