scholarly journals Suitability of Seagrass Ecosystem for Marine Ecotourism in Padang City, West Sumatera Province

2018 ◽  
Vol 32 (1) ◽  
pp. 88-95 ◽  
Author(s):  
Try Al Tanto ◽  
Aprizon Putra ◽  
Dedi Hermon ◽  
Harfiandri Damanhuri

Seagrass ecosystems are exciting parts of the tropical coastal region that are potential for ecotourism activities. Marine ecotourism sector in the city of Padang has begun to develop within last few years. This development has not only positive impacts but also negative threats to the environment. Therefore, carefully select the most suitable areas for this purpose is important. This article aims to propose the potential areas for seagrass ecotourism in Padang city based on Geographic information system (GIS) analysis. We used spatial analysis to develop the seagrass ecotourism suitability index that is also potentially applicable to other areas. The results of the analysis show that area of the seagrass ecosystem in Nirwana beach (23.75 ha), Cindakir beach (2.56 ha), and Pasumpahan island (5.46 ha) with a total area of the seagrass ecosystem overall in Padang City (31.78 ha). These areas have been overgrown by Thalassia hemprichii with coverage >50 – 75 % in Nirwana beach, 25 – 50 % in Cindakir beach and Pasumpahan Island. The suitable areas for seagrass ecotourism were found on the beach of Nirwana (covers 84% as very suitable), Cindakir beach (covers 73 % as moderately suitable) and Pasumpahan island (covers 78 % as moderately suitable). We found that activities of local communities decreased the suitability of Cindakir beach and Pasumpahan island because these activities increase the abundance of mud in the substrate of waters.

2020 ◽  
Vol 25 (3) ◽  
pp. 163
Author(s):  
Adani Fatahilal Arifin ◽  
Irvina Nurrachmi ◽  
Efriyeldi Efriyeldi

Many of marine ecotourism activities on Nirwana Beach has had a negative impact to the development of seagrass ecosystems. Pressure that occurs on the coastal ecosystem becomes a trigger factor seagrasses to adapt with produce certain compounds for maintain immunity, the name is bioactive compounds. This research was aimed to know toxicity to Artemia salina and phytochemical component of Thalassia hemprichii seagrass from Nirwana Beach by using experimental method. Two seagrass extracts with different solvents have been made in the Marine Chemistry Laboratories for use in toxicity and phytochemical tests. The results of the test are displayed in tabular or graphical form and analyzed descriptively. The results of toxicity testing showed that seagrass had a toxicity level of 446.872 ppm (n-hexane solvent) and 218.183 ppm (methanol solvents), both of extract are toxic to the Artemia salina. Phytochemical testing shows tannin compounds founded in extracts with n-hexane and methanol solvent, alkaloids and triterpenoids compound contained in extracts with methanol solvent.


2021 ◽  
Author(s):  
Vincent Racine

This Master’s Research Project (MRP) examines landscape connectivity strategies for the ravine system in the City of Toronto, CA. A workshop with natural environment specialists from the City of Toronto was organized to gather practitioner-based information as to which gaps should be prioritized in the ravine system. This GAP Analysis was complemented with a Geographic Information System (GIS) - based buffer analysis looking at connectable green spaces in close proximity to Environmentally Significant Areas (ESAs). Based on both the workshop and GIS analysis, 16 gaps were investigated through which 4 typologies were created. Interviews were then conducted with professionals from comparator cities: Edmonton (CA), Vancouver (CA), Minneapolis (US), Copenhagen (DK), and Stockholm (SW) to compare into how waterfront cities use policies, partnerships and design interventions to connect waterfront public lands. Based on interviews and additional policy scans, connectivity strategies were created for all 4 typologies as a means to improve landscape connectivity in the City of Toronto.


2020 ◽  
pp. 87-105
Author(s):  
Anna Obach Lapieza ◽  
María Ramos Sanz

Gender mainstreaming generated a wide diversity of innovative measures and interventions in new areas not explored until the moment. This is the case of mobility policies, linked to the sustainable urban design and the measures for the environment’s improvement. The literature review and the analysis of the cities’ experiences, allow us to establish some criteria to audit the level of inclusivity of transport infrastructures. In the case of cycling infrastructures, the following criteria have to be taken into account: security, ensuring road safety elements and adequate lighting; conciliation, connecting areas of the city linked to child care, elderly care, daily shopping and personal dealings, through Geographic Information System (GIS) analysis; apply an inclusive and participatory approach, from the comprehension that there is a diverse citizenship with multiple needs and that these have to be taken into account during the design of these policies; and the visibility of cyclist women, as a tool of empowerment and promotion of the use of the bicycle..


2019 ◽  
Vol 8 (9) ◽  
pp. 375 ◽  
Author(s):  
Takashi Kirimura

This paper sheds light on the residences of white-collar workers in Tokyo and Osaka, Japan in the modernizing period using historical statistical data and telephone directories from a historical geographic information system (GIS) analysis. We examined the differences between the distribution of white-collar workers and the progress of suburbanization by comparing the respective unemployment censuses and telephone directories of Tokyo and Osaka. The analysis shows that in 1925, there was a tendency for many white-collar workers to live in certain city sectors, as well as in the city center. However, this trend had changed by the mid-1930s, when data show that private-sector white-collar workers tended to live more in areas with a relatively low population density. Compared to Osaka, Tokyo was relatively suburbanized with white-collar workers in private companies.


2021 ◽  
Author(s):  
Vincent Racine

This Master’s Research Project (MRP) examines landscape connectivity strategies for the ravine system in the City of Toronto, CA. A workshop with natural environment specialists from the City of Toronto was organized to gather practitioner-based information as to which gaps should be prioritized in the ravine system. This GAP Analysis was complemented with a Geographic Information System (GIS) - based buffer analysis looking at connectable green spaces in close proximity to Environmentally Significant Areas (ESAs). Based on both the workshop and GIS analysis, 16 gaps were investigated through which 4 typologies were created. Interviews were then conducted with professionals from comparator cities: Edmonton (CA), Vancouver (CA), Minneapolis (US), Copenhagen (DK), and Stockholm (SW) to compare into how waterfront cities use policies, partnerships and design interventions to connect waterfront public lands. Based on interviews and additional policy scans, connectivity strategies were created for all 4 typologies as a means to improve landscape connectivity in the City of Toronto.


2020 ◽  
Vol 4 (2) ◽  
pp. 111
Author(s):  
Selvi Tebay ◽  
Paulus Boli ◽  
Joiner F Ainusi

Seagrass ecosystem have primary and secondary productivity with great support to the abundance and diversity of fishes and it’s biota associations. Seagrass ecosystems are also as a coastal resources that have an important role of environmental services. Some community activities will directly or indirectly can have an impact on habitat degradation and biodiversity of seagrass ecosystems. The importance oto assess the potential of seagrass ecosystem and it’s biotas association is to know of sea grass’s role to provides of environmental services is the aim of this study. This research was conducted in the waters of Kampung Aisandami, Teluk Wondama Regency during June - July 2019. Data collection methodology was used is structured random methods quadrant transects at two observations to reveal data on seagrass community structure. The datas obtained were tabulated and displayed in tables and figures. Thalassia hemprichii and Enhalus acoroides were found at two observation sites. Another type found outside the observation transect is Halophila ovalis. E. acoroides seagrass species have a frequency value is 0.77 which shows that distribution of E. acoroides is wider than T. hemprichii which has a frequency is 0. 58. Both of station show that T. hemprichii has a frequency value of 0.7 where it indicates that distribution is wider compare with E. Acoroides. T hemprichii has the highest relative density at both observation stations. The status of seagrass of both stations is classified as poor or unhealthy with seagrass value ≥ 30-59.9%. The highest importance index is the T. hemprichii seagrass at both stations and has a higher role than the E. acoroides. The community-based management model is the a suitable model that can be used to developing coastal ecosystem management including seagrass ecosystems in this village.


2020 ◽  
Vol 25 (3) ◽  
pp. 405-411
Author(s):  
Rizqan Khairan Munandar ◽  
Sulistiono Sulistiono ◽  
Isdrajad Setyobudiandi

This research is about studying ecosystems that was designed to analyze the relationship between seagrass ecosystem, environmental competition, and seahorse participation to analyze the distribution of seagrass ecosystems and the abundance of sea horses, and to analyze seahorse-based ecosystem management strategies. This research was conducted in March–June 2017. The determination of the research station was based on purposive sampling technique. Retrieval of seagrass ecosystem data was conducted using a quadrant with the size of 50 x 50 cm transect. Seahorse data were collected using visual census on seagrass transect with a plot of 100 x 100 cm. The relationships between environmental parameters, seagrass ecosystems, and seahorses were calculated using XL Starting 2015. Management of seagrass ecosystems was analyzed using SWOT. Analysis of seagrass included type, density, and INP. Seahorse analysis calculated the abundance of seahorse. The results found 6 species of seagrasses, namely Enhalus acoraides (Ea), Thalassia hemprichii (Th), Halophila ovalis (Ho), Syringodium isoetifolium (Si), Cymodocea serrulata (Cs), and Thalassodendron ciliatum (Tc) with a density that covered sea horse  abundance, and INP which had several types of roles in the research location. The management is carried out with the objectives of sustainable resources.   Keywords: seagrass ecosystem, seahorse, Sebong Pereh Village


Author(s):  
A. Popov ◽  
O.N. Lopateeva ◽  
A.K. Ovsyankin ◽  
M. M. Satsuk ◽  
A. A. Artyshko ◽  
...  

Among the measures aimed at the effective performance of public services in a modern urban environment, one of the main is the quality control and efficiency of the work performed. Timely street cleaning is hampered by several groups of problems, including the lack of a single automated information system (AIS) control of the work performed. In this regard, there is a need to improve and automate this area. This approach will allow you to combine high performance due to the speed of the system and effective quality control of street cleaning. The purpose of this work is the study and analysis of existing information systems (is), allowing to automate the process of quality control and operational performance of the above tasks. On the basis of the conducted researches, to develop is, having coordinated with the customer (administration of the Central district of Krasnoyarsk) requirements and functionality which allow to automate this process.This article presents the main aspects of the design and software solutions for the implementation of the algorithm in the form of AIS, designed to automate the process of monitoring the cleanliness of streets in the city. The development of AIS was conducted in the PhpStorm integrated development environment in the PHP programming language.


2020 ◽  
Vol 10 (1) ◽  
pp. 7
Author(s):  
Miguel R. Luaces ◽  
Jesús A. Fisteus ◽  
Luis Sánchez-Fernández ◽  
Mario Munoz-Organero ◽  
Jesús Balado ◽  
...  

Providing citizens with the ability to move around in an accessible way is a requirement for all cities today. However, modeling city infrastructures so that accessible routes can be computed is a challenge because it involves collecting information from multiple, large-scale and heterogeneous data sources. In this paper, we propose and validate the architecture of an information system that creates an accessibility data model for cities by ingesting data from different types of sources and provides an application that can be used by people with different abilities to compute accessible routes. The article describes the processes that allow building a network of pedestrian infrastructures from the OpenStreetMap information (i.e., sidewalks and pedestrian crossings), improving the network with information extracted obtained from mobile-sensed LiDAR data (i.e., ramps, steps, and pedestrian crossings), detecting obstacles using volunteered information collected from the hardware sensors of the mobile devices of the citizens (i.e., ramps and steps), and detecting accessibility problems with software sensors in social networks (i.e., Twitter). The information system is validated through its application in a case study in the city of Vigo (Spain).


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