Pub Date : 2019-12-29DOI: 10.47125/jesam/2019_2/06
Joela Mizchelle dela Vega, C. Predo, L. Florece, Marissa Sobremisana
The Atulayan Bay is one of the established Marine Protected Areas in the Philippines in 1993 by virtue of Municipal Ordinance No. 93-001. Use of illegal fishing method and declining fish catch were the problems identified in the area. This study estimated the value of the benefits in conserving the marine resources in Atulayan Bay Marine Protected Area in Sagñay. The survey was conducted on February-March 2019 with 110 Atulayan and 225 Nato fisherfolks. The willingness to pay of the fisherfolks was estimated using the contingent valuation method. The parametric (logit regression) and non-parametric (turnbull) estimation were used to calculate for their willingness to pay to conserve the Atulayan Bay MPA. The estimated average willingness to pay per month of fisherfolk for the parametric estimation of Atulayan and Nato were PhP* 91 (US$1.72) and PhP 179 (US$3.39), respectively, and for the non-parametric estimation, PhP 86 (US$1.63) for Atulayan and PhP 27 (US$0.51) for Nato. The significant factors affecting the willingness to pay of Atulayan fisherfolks were income and bid level while for the Nato fisherfolks were age, income and bid level. The estimated willingness to pay values are a useful basis for the possible amount of tax that will be collected monthly from the registered fisherfolks by the municipal office for the conservation of the Atulayan Bay Marine Protected Area.
{"title":"Fisherfolks’ Willingness-to-Pay for the Conservation of Atulayan Bay Marine Protected Area in Sagñay, Camarines Sur, Philippines","authors":"Joela Mizchelle dela Vega, C. Predo, L. Florece, Marissa Sobremisana","doi":"10.47125/jesam/2019_2/06","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/06","url":null,"abstract":"The Atulayan Bay is one of the established Marine Protected Areas in the Philippines in 1993 by virtue of Municipal Ordinance No. 93-001. Use of illegal fishing method and declining fish catch were the problems identified in the area. This study estimated the value of the benefits in conserving the marine resources in Atulayan Bay Marine Protected Area in Sagñay. The survey was conducted on February-March 2019 with 110 Atulayan and 225 Nato fisherfolks. The willingness to pay of the fisherfolks was estimated using the contingent valuation method. The parametric (logit regression) and non-parametric (turnbull) estimation were used to calculate for their willingness to pay to conserve the Atulayan Bay MPA. The estimated average willingness to pay per month of fisherfolk for the parametric estimation of Atulayan and Nato were PhP* 91 (US$1.72) and PhP 179 (US$3.39), respectively, and for the non-parametric estimation, PhP 86 (US$1.63) for Atulayan and PhP 27 (US$0.51) for Nato. The significant factors affecting the willingness to pay of Atulayan fisherfolks were income and bid level while for the Nato fisherfolks were age, income and bid level. The estimated willingness to pay values are a useful basis for the possible amount of tax that will be collected monthly from the registered fisherfolks by the municipal office for the conservation of the Atulayan Bay Marine Protected Area.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41522663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-29DOI: 10.47125/jesam/2019_2/05
Ariel Delfino, J. Dizon, M. Quimbo, D. Depositario
This study analyzed the social vulnerability and adaptive capacity to climate change impacts of women-headed households in two remote coastal communities in Lagonoy, Camarines Sur. Quantitative method following descriptive-correlational research design was employed. Out of 281 WHHs, 162 were randomly selected as the respondents of this study. Descriptive statistics, principal component analysis (PCA), t-test for independent samples, and multiple linear regression analysis were used to analyze the data. Women-headed households in the two remote coastal communities have moderate to high vulnerability in terms of demographic, economic, and social factors. No significant difference was found in their level of social vulnerability; however, a substantial difference was found in the adaptive capacity of the respondents from the East and North coastal communities. Multiple linear regression analysis revealed that the number of household members with disabilities, affiliation with social groups, time travel of the respondents, and household size were significant factors influencing social vulnerability in the two remote coastal communities. The study recommends formulating effective climate change policies and responsive strategies that enhance the rights and welfare of these households for equal distribution and access to resources, especially in socio-political structures in the community.
{"title":"Social Vulnerability and Adaptive Capacity to Climate Change Impacts of Women-headed Households in the Philippines: a Comparative Analysis","authors":"Ariel Delfino, J. Dizon, M. Quimbo, D. Depositario","doi":"10.47125/jesam/2019_2/05","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/05","url":null,"abstract":"This study analyzed the social vulnerability and adaptive capacity to climate change impacts of women-headed households in two remote coastal communities in Lagonoy, Camarines Sur. Quantitative method following descriptive-correlational research design was employed. Out of 281 WHHs, 162 were randomly selected as the respondents of this study. Descriptive statistics, principal component analysis (PCA), t-test for independent samples, and multiple linear regression analysis were used to analyze the data. Women-headed households in the two remote coastal communities have moderate to high vulnerability in terms of demographic, economic, and social factors. No significant difference was found in their level of social vulnerability; however, a substantial difference was found in the adaptive capacity of the respondents from the East and North coastal communities. Multiple linear regression analysis revealed that the number of household members with disabilities, affiliation with social groups, time travel of the respondents, and household size were significant factors influencing social vulnerability in the two remote coastal communities. The study recommends formulating effective climate change policies and responsive strategies that enhance the rights and welfare of these households for equal distribution and access to resources, especially in socio-political structures in the community.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43547793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-29DOI: 10.47125/jesam/2019_2/07
R. Parilla, R. Laude, A. D. Guia, M. Espaldon, L. Florece
This study determined the relative abundance of Cebu black shama (Copsychus cebuensis Steere) in selected isolated forest fragments in Cebu Island, Philippines and their genetic diversity based on 619 bp cytB gene. Mist nets were used to capture the bird in these forest fragments. Four contour feathers were plucked from the body of the caught birds, before they were released, and were stored in tubes with 70% ethanol before DNA extraction. Fifty-nine black shama (C. cebuensis) individuals were encountered from the visited territories. At least 13 black shama individuals were estimated to inhabit one hectare of forest habitat. For the first time, analyses of mitochondrial genes revealed that C. cebuensis had a long evolutionary history from an initially large and stable population that went through recent expansion resulting from a recent isolating or bottleneck event as indicated by high haplotype diversity (Hd) and nucleotide diversity (πn), i.e. Hd>0.50 and πn>0.005, and non-significant values of Tajima’s D test, Fu and Li’s D*, and Fu’s Fs statistics. It is hypothesized that this bottleneck event was habitat fragmentation. Furthermore, phylogenetic analyses of C. cebuensis supported its monophyly.
{"title":"Genetic Diversity and Relative Abundance of Cebu Black Shama (Copsychus cebuensis Steere) in Fragmented Forests of Cebu Island, Philippines","authors":"R. Parilla, R. Laude, A. D. Guia, M. Espaldon, L. Florece","doi":"10.47125/jesam/2019_2/07","DOIUrl":"https://doi.org/10.47125/jesam/2019_2/07","url":null,"abstract":"This study determined the relative abundance of Cebu black shama (Copsychus cebuensis Steere) in selected isolated forest fragments in Cebu Island, Philippines and their genetic diversity based on 619 bp cytB gene. Mist nets were used to capture the bird in these forest fragments. Four contour feathers were plucked from the body of the caught birds, before they were released, and were stored in tubes with 70% ethanol before DNA extraction. Fifty-nine black shama (C. cebuensis) individuals were encountered from the visited territories. At least 13 black shama individuals were estimated to inhabit one hectare of forest habitat. For the first time, analyses of mitochondrial genes revealed that C. cebuensis had a long evolutionary history from an initially large and stable population that went through recent expansion resulting from a recent isolating or bottleneck event as indicated by high haplotype diversity (Hd) and nucleotide diversity (πn), i.e. Hd>0.50 and πn>0.005, and non-significant values of Tajima’s D test, Fu and Li’s D*, and Fu’s Fs statistics. It is hypothesized that this bottleneck event was habitat fragmentation. Furthermore, phylogenetic analyses of C. cebuensis supported its monophyly.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44000878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-14DOI: 10.47125/jesam/2016_1/06
M. Maung, J. Pulhin, M. Espaldon, N. Lalican
Climate change will affect the agricultural productivity in dry zone area due to insufficient knowledge, inadequate human capacity development, and limited institution al interventions dealing with farm level climate change adaptation. This paper examined factors influencing climate change awareness, the effects of climate change as perceived by farmers and farm level adaptations practiced by farmers in coping with climate variation and other factors in Myanmar. One hundred fifty respondents were interviewed from three geographical strata in Monywa Township (Central Dry Zone), Sagaing Region, in Myanmar namely upstream, midstream and downstream. Climate change awareness influenced by socio-economic and institutional factors can provide the effective decisions for better farming practices to minimize the risks of climate variation in rainfed areas. The development and application of relatively simple and reliable methods for assessing the impacts of climate change and adaptation strategies at the agricultural system and/or household level are still demanded to provide timely recommendations for alternative technologies and policies.
{"title":"Climate Change Awareness and Farm Level Adaptation of Farmers (Central Dry Zone) in Monywa Township, Sagaing Region, Myanmar","authors":"M. Maung, J. Pulhin, M. Espaldon, N. Lalican","doi":"10.47125/jesam/2016_1/06","DOIUrl":"https://doi.org/10.47125/jesam/2016_1/06","url":null,"abstract":"Climate change will affect the agricultural productivity in dry zone area due to insufficient knowledge, inadequate human capacity development, and limited institution al interventions dealing with farm level climate change adaptation. This paper examined factors influencing climate change awareness, the effects of climate change as perceived by farmers and farm level adaptations practiced by farmers in coping with climate variation and other factors in Myanmar. One hundred fifty respondents were interviewed from three geographical strata in Monywa Township (Central Dry Zone), Sagaing Region, in Myanmar namely upstream, midstream and downstream. Climate change awareness influenced by socio-economic and institutional factors can provide the effective decisions for better farming practices to minimize the risks of climate variation in rainfed areas. The development and application of relatively simple and reliable methods for assessing the impacts of climate change and adaptation strategies at the agricultural system and/or household level are still demanded to provide timely recommendations for alternative technologies and policies.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43290539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-14DOI: 10.47125/jesam/2016_1/08
T. M. Cabili, V. Cuevas
Capul is a small island municipality of Northern Samar situated along the swift flowing San Bernardino Strait. Typhoons often pass through the island especially during the Northeast monsoon season. The inhabitants’ livelihood relies mainly on fishing combined with farming. Unstructured focused interview of the elders of the island on their different cultural beliefs and practices related to fishing was conducted. Fish catch was measured in one lunar month each during summer and typhoon seasons. Catch per unit effort (CPUE) was determined for each major type of fishing method. Multiple correlation analysis was used to determine the factors affecting fish productivity. The islanders still have strong beliefs and respect for deities and fairies supposed to be residing on specific areas of the island. These sacred places remain undisturbed and may have become fish sanctuaries. The inhabitants modified traditional fishing methods to suit their economic needs and condition. People’s initiatives and peer pressure have diminished the use of illegal fishing methods in the island such as compressor, dynamite and poisonous plants. The fishery yield was high in comparison with that of other fishery resources of the country. The CPUE for fish net and hook and line methods were high. The inhabitants’ cultural beliefs and practices may have led to the conservation of their fishery resource which gave the high yield. There are indications that the yield is sustainable.
{"title":"Cultural Beliefs, Practices and Productivity of the Fishery Resource in the Island Municipality of Capul, Northern Samar, Philippines","authors":"T. M. Cabili, V. Cuevas","doi":"10.47125/jesam/2016_1/08","DOIUrl":"https://doi.org/10.47125/jesam/2016_1/08","url":null,"abstract":"Capul is a small island municipality of Northern Samar situated along the swift flowing San Bernardino Strait. Typhoons often pass through the island especially during the Northeast monsoon season. The inhabitants’ livelihood relies mainly on fishing combined with farming. Unstructured focused interview of the elders of the island on their different cultural beliefs and practices related to fishing was conducted. Fish catch was measured in one lunar month each during summer and typhoon seasons. Catch per unit effort (CPUE) was determined for each major type of fishing method. Multiple correlation analysis was used to determine the factors affecting fish productivity. The islanders still have strong beliefs and respect for deities and fairies supposed to be residing on specific areas of the island. These sacred places remain undisturbed and may have become fish sanctuaries. The inhabitants modified traditional fishing methods to suit their economic needs and condition. People’s initiatives and peer pressure have diminished the use of illegal fishing methods in the island such as compressor, dynamite and poisonous plants. The fishery yield was high in comparison with that of other fishery resources of the country. The CPUE for fish net and hook and line methods were high. The inhabitants’ cultural beliefs and practices may have led to the conservation of their fishery resource which gave the high yield. There are indications that the yield is sustainable.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47828235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-14DOI: 10.47125/jesam/2016_1/09
M. Corpuz, V. Paller, P. Ocampo
An ichthyofaunal survey was conducted to evaluate the diversity and distribution of freshwater fishes in Looc, Magapi (inlets), and Pansipit (outlet) rivers surrounding Lake Taal (Batangas, Philippines) during the wet (July) and dry season (January) of 2011. The study collected 3,342 individuals comprising 37 species (19 families). In terms of fish species richness, 36 species were identified in Pansipit, whereas Looc and Magapi had 21 species each. The fish samples were mostly included eurayhaline, secondary freshwater fishes. The three most abundant groups were eleotrids, cichlids, and gobiids. Shannon-Weiner’s diversity indices ranged from 2.17–3.05, which suggest that the studied rivers were moderately to slightly impacted. Significant differences in the composition and abundance of native and introduced fishes for the two sampling seasons were also observed (P<0.05), with native species being generally more diverse and abundant than non-native species. A high similarity level (>76%) was computed in the abundance data among the studied rivers. Canonical correspondence analysis identified the distance to the adjacent sea, depth, and vegetation as the most important environmental parameters influencing the distribution of fish assemblages. Baseline dataset from this study can be coordinated to concerned entities as a rational basis for future conservation and rehabilitation endeavors of Lake Taal river systems.
{"title":"Diversity and Distribution of Freshwater Fish Assemblages in Lake Taal River Systems in Batangas, Philippines","authors":"M. Corpuz, V. Paller, P. Ocampo","doi":"10.47125/jesam/2016_1/09","DOIUrl":"https://doi.org/10.47125/jesam/2016_1/09","url":null,"abstract":"An ichthyofaunal survey was conducted to evaluate the diversity and distribution of freshwater fishes in Looc, Magapi (inlets), and Pansipit (outlet) rivers surrounding Lake Taal (Batangas, Philippines) during the wet (July) and dry season (January) of 2011. The study collected 3,342 individuals comprising 37 species (19 families). In terms of fish species richness, 36 species were identified in Pansipit, whereas Looc and Magapi had 21 species each. The fish samples were mostly included eurayhaline, secondary freshwater fishes. The three most abundant groups were eleotrids, cichlids, and gobiids. Shannon-Weiner’s diversity indices ranged from 2.17–3.05, which suggest that the studied rivers were moderately to slightly impacted. Significant differences in the composition and abundance of native and introduced fishes for the two sampling seasons were also observed (P<0.05), with native species being generally more diverse and abundant than non-native species. A high similarity level (>76%) was computed in the abundance data among the studied rivers. Canonical correspondence analysis identified the distance to the adjacent sea, depth, and vegetation as the most important environmental parameters influencing the distribution of fish assemblages. Baseline dataset from this study can be coordinated to concerned entities as a rational basis for future conservation and rehabilitation endeavors of Lake Taal river systems.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42988154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-14DOI: 10.47125/jesam/2016_1/04
M. Idris, S. R. Abdullah, H. S. Titah, M. T. Latif, Abdul Rahman Abasa, A. Husin, Raja Farzarul Hanima, Rozita Ayub
There is lack of sufficient data that describe which plants can be used in phytoremediation for petroleum and heavy metal contaminated sites, especially in the tropical climate region. The aim of the study was to identify native plants growing on a petroleum contaminated site in Malacca, Malaysia, which have a phytoremediation potential on petroleum. The second aim was to identify native plants at the same contaminated site for phytoremediation of heavy metal contaminants or hyper accumulation plants. In the initial screening of contaminated sites, some of the native plants were found to have the capability to grow in very high concentration of total petroleum hydrocarbon (TPH). This indicates that some of these plants have high potential to act as a phytoremediator. Paspalum vaginatum Sw, Paspalum scrobiculatum L. varbispicatum Hack, Eragrostis atrovirens (Desf.) Trin. exSteud, Cayratia trifolia (L.) Domin, Chloris barbata (L.) Sw, Pycreus polystachyos (Rottb.) Beauv and Ischaemum timorense Kunth were found to be potential phytoremediatory of TPH in contaminated soil. These plants were chosen based on thier high rate of survival in contaminated sites and in terms of uptake or in degrading contaminants. The Biological Accumulation Coefficient (BAC) has been used as a guideline to choose potential plants for heavy metal phytoremediation. In the study, the plants were screened based on BAC values for arsenic (As) and lead (Pb). The selected plants, Melochia corchorifolia L., Ludwigia octovalvis (Jacq.) P. H. Raven, P. vaginatum, Cyperus sphacelatus Rottb., are potential as phytoremediators while L. octovalvis and Melastoma malabathricum L. are potential Pb phytoremediators.
目前缺乏足够的数据说明哪些植物可用于石油和重金属污染场地的植物修复，特别是在热带气候地区。该研究的目的是鉴定生长在马来西亚马六甲石油污染场地上的具有石油修复潜力的本地植物。第二个目的是在同一污染地点识别原生植物，用于重金属污染物的植物修复或超积累植物。在污染场地的初步筛选中，发现一些本地植物具有在高浓度石油总烃(TPH)环境下生长的能力。这表明其中一些植物具有作为植物修复剂的高潜力。阴道雀稗(paspasum vaginatum Sw)，花丛雀稗(paspasum L. varbispicatum Hack, Eragrostis atrovirens, Desf.)指标。exSteud, Cayratia trifolia (L.)Domin，山茱萸(L.)绿足猴(Pycreus polystachyos)对污染土壤中的TPH具有潜在的修复作用。选择这些植物是基于它们在受污染地点的高存活率，以及它们对污染物的吸收或降解能力。生物积累系数(BAC)可作为选择重金属植物修复潜力植物的依据。在研究中，根据植物的BAC值对砷(As)和铅(Pb)进行筛选。所选植物:棉兰(Melochia corchorifolia L.)、八瓣Ludwigia octovalvis (Jacq.)P. H. Raven, P. vaginatum, Cyperus sphacelatus roth。，是潜在的植物修复剂，而L. octovalvis和Melastoma malabatharum L.是潜在的Pb植物修复剂。
{"title":"Screening and Identification of Plants at a Petroleum Contaminated Site in Malaysia For Phytoremediation","authors":"M. Idris, S. R. Abdullah, H. S. Titah, M. T. Latif, Abdul Rahman Abasa, A. Husin, Raja Farzarul Hanima, Rozita Ayub","doi":"10.47125/jesam/2016_1/04","DOIUrl":"https://doi.org/10.47125/jesam/2016_1/04","url":null,"abstract":"There is lack of sufficient data that describe which plants can be used in phytoremediation for petroleum and heavy metal contaminated sites, especially in the tropical climate region. The aim of the study was to identify native plants growing on a petroleum contaminated site in Malacca, Malaysia, which have a phytoremediation potential on petroleum. The second aim was to identify native plants at the same contaminated site for phytoremediation of heavy metal contaminants or hyper accumulation plants. In the initial screening of contaminated sites, some of the native plants were found to have the capability to grow in very high concentration of total petroleum hydrocarbon (TPH). This indicates that some of these plants have high potential to act as a phytoremediator. Paspalum vaginatum Sw, Paspalum scrobiculatum L. varbispicatum Hack, Eragrostis atrovirens (Desf.) Trin. exSteud, Cayratia trifolia (L.) Domin, Chloris barbata (L.) Sw, Pycreus polystachyos (Rottb.) Beauv and Ischaemum timorense Kunth were found to be potential phytoremediatory of TPH in contaminated soil. These plants were chosen based on thier high rate of survival in contaminated sites and in terms of uptake or in degrading contaminants. The Biological Accumulation Coefficient (BAC) has been used as a guideline to choose potential plants for heavy metal phytoremediation. In the study, the plants were screened based on BAC values for arsenic (As) and lead (Pb). The selected plants, Melochia corchorifolia L., Ludwigia octovalvis (Jacq.) P. H. Raven, P. vaginatum, Cyperus sphacelatus Rottb., are potential as phytoremediators while L. octovalvis and Melastoma malabathricum L. are potential Pb phytoremediators.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42587493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-14DOI: 10.47125/jesam/2016_1/03
Melanie A. Calicdan, C. Rebancos, N. Baguinon
Sound and effective mangrove management can be achieved when the institutional stakeholders are well organized under a balanced arrangement. This paper aimed to present the case of Protected Area Management Board (PAMB) of Palaui Island Protected Landscape and Seascape (PIPLS) in terms of stakeholder’s role, interaction, and efforts to address problems and issues on mangrove management. Key informant interviews (KII’s) in 14 institutions using a structured questionnaire were employed. The responses were validated in the field through community interview using unstructured questions. Stakeholder analysis was used to analyze the result of the interview. The interaction is only apparent among some stakeholders as far as mangrove management is concerned. Strong interaction was observed among some stakeholders while others have weak or no interaction. Stakeholders with weak interaction are those who do not have the jurisdiction on the resource while those with no interaction are stakeholders with no defined roles on mangrove management. Strong interaction was observed among stakeholders whose mandate is in line with the protection of the resource and has clear roles. Problems on the enforcement (i.e. lack of manpower and resources, inaccessibility of the administering authority, and overlapping institutional roles) still persist but coordination, consultation, and collaboration are being exercised by PAMB members to prevent further confusion and successfully manage the resource. However, the weak implementation of laws due to humanitarian reasons may hamper the effectiveness of enforcement which eventually affects the successful and sound management of mangroves. Therefore, these problems should be immediately addressed. The functions of the members were only stated during the survey and interview and these shall still be subjected to further analysis to come up with a more organized and systematic development of mangrove management in PIPLS
{"title":"Institutional Arrangements in Mangrove Rehabilitation Management of Palaui Island Protected Landscape and Seascape (PIPLS), Sta. Ana, Cagayan, Philippines","authors":"Melanie A. Calicdan, C. Rebancos, N. Baguinon","doi":"10.47125/jesam/2016_1/03","DOIUrl":"https://doi.org/10.47125/jesam/2016_1/03","url":null,"abstract":"Sound and effective mangrove management can be achieved when the institutional stakeholders are well organized under a balanced arrangement. This paper aimed to present the case of Protected Area Management Board (PAMB) of Palaui Island Protected Landscape and Seascape (PIPLS) in terms of stakeholder’s role, interaction, and efforts to address problems and issues on mangrove management. Key informant interviews (KII’s) in 14 institutions using a structured questionnaire were employed. The responses were validated in the field through community interview using unstructured questions. Stakeholder analysis was used to analyze the result of the interview. The interaction is only apparent among some stakeholders as far as mangrove management is concerned. Strong interaction was observed among some stakeholders while others have weak or no interaction. Stakeholders with weak interaction are those who do not have the jurisdiction on the resource while those with no interaction are stakeholders with no defined roles on mangrove management. Strong interaction was observed among stakeholders whose mandate is in line with the protection of the resource and has clear roles. Problems on the enforcement (i.e. lack of manpower and resources, inaccessibility of the administering authority, and overlapping institutional roles) still persist but coordination, consultation, and collaboration are being exercised by PAMB members to prevent further confusion and successfully manage the resource. However, the weak implementation of laws due to humanitarian reasons may hamper the effectiveness of enforcement which eventually affects the successful and sound management of mangroves. Therefore, these problems should be immediately addressed. The functions of the members were only stated during the survey and interview and these shall still be subjected to further analysis to come up with a more organized and systematic development of mangrove management in PIPLS","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44159242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-14DOI: 10.47125/jesam/2016_1/01
H. Bui, Y. Perng, H. Duong
Natural seed gum extracted from Cassia fistula Linn. (CF) was experimentally evaluated to treat reactive dye (Red 195) in an aqueous solution, whose color and Chemical Oxygen Demand (COD) were to measure the treatment efficiency. To investigate five parameters i.e. pH, reaction time, agitation speeds, dye concentration and CF gum concentration were used to implement a one-factor-at-a-time experiment with Jar-test apparatus. Carried out under weak basic condition (pH 10) for 30 min, the COD and decolorization efficiency of the dye stuff wastewater was observed at 42.4% and 57.8%, respectively. A single-layer Artificial Neural Network (ANN) model was also developed to predict the removal efficiency of the dye by using the determination coefficient (R2) and the root mean square error (RMSE). The observed and predicted outputs were found to be 0.924 and 3.759, respectively. Furthermore, the ANN model was analysed using Garson’s algorithm, connection weight method, and neural interpretation diagram to understand the influence of each operation factor on the treatment process.
{"title":"The Use of Artificial Neural Network for Modeling Coagulation of Reactive Dye Wastewater Using Cassia fistula Linn. Gum","authors":"H. Bui, Y. Perng, H. Duong","doi":"10.47125/jesam/2016_1/01","DOIUrl":"https://doi.org/10.47125/jesam/2016_1/01","url":null,"abstract":"Natural seed gum extracted from Cassia fistula Linn. (CF) was experimentally evaluated to treat reactive dye (Red 195) in an aqueous solution, whose color and Chemical Oxygen Demand (COD) were to measure the treatment efficiency. To investigate five parameters i.e. pH, reaction time, agitation speeds, dye concentration and CF gum concentration were used to implement a one-factor-at-a-time experiment with Jar-test apparatus. Carried out under weak basic condition (pH 10) for 30 min, the COD and decolorization efficiency of the dye stuff wastewater was observed at 42.4% and 57.8%, respectively. A single-layer Artificial Neural Network (ANN) model was also developed to predict the removal efficiency of the dye by using the determination coefficient (R2) and the root mean square error (RMSE). The observed and predicted outputs were found to be 0.924 and 3.759, respectively. Furthermore, the ANN model was analysed using Garson’s algorithm, connection weight method, and neural interpretation diagram to understand the influence of each operation factor on the treatment process.","PeriodicalId":15657,"journal":{"name":"Journal of Environmental Science and Management","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42764520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-13DOI: 10.47125/jesam/2016_2/08
R. Parilla, R. Laude, A. P. D. de Guia, M. Espaldon, L. Florece
A knowledge, attitude & perception (KAP) survey was conducted in four important bird areas (IBAs) in Cebu island, Philippines towards the protection and conservation of the Cebu black shama (Copsychus cebuensis) and its habitat. Similarly, the habitat quality of the black shama in the island was also assessed in terms of vegetation composition and diversity. A total of 193 households were interviewed from July 2013 to December 2013. Most of the respondents only finished elementary and high school levels. However, their mean knowledge score was above 6.50 while their attitude mean score was above 9.40. Their perception scores, on the other hand, were highly positive. Regardless of their educational attainment, people living near the identified black shama territories were highly knowledgeable, aware and positive towards the protection and conservation of the endangered bird and its habitat. Forty-five black shama territories were sampled employing 20 m x 20 m quadrats from September 2013 – February 2014. The black shama habitat is characterized with high plant species diversity (H’>3.50), even plant distribution (e >0.75), and low dominance index (D >0.01). In terms of vegetation composition, the black shama habitats were not similar. Integrating the social and ecological knowledge to conservation will likely promote a wider perspective of effective conservation program implementation than social or ecological knowledge alone.
在菲律宾宿务岛的四个重要鸟类区（IBA）进行了知识、态度和感知（KAP）调查，以保护和保护宿务黑沙马（Copsychus cebuensis）及其栖息地。同样，还从植被组成和多样性方面评估了岛上黑沙马的栖息地质量。从2013年7月到2013年12月，共采访了193户家庭。大多数受访者只完成了小学和高中的学业。然而，他们的平均知识得分在6.50以上，而他们的平均态度得分在9.40以上。另一方面，他们的感知得分是非常积极的。无论他们的教育程度如何，居住在已确定的黑沙马地区附近的人们都非常了解、意识到并积极保护和保护这种濒危鸟类及其栖息地。从2013年9月至2014年2月，采用20 m x 20 m的象限对45个黑沙马地区进行了采样。黑三叶草生境具有植物物种多样性高（H'>3.50），植物分布均匀（e>0.75），优势度指数低（D>0.01）的特点。将社会和生态知识与保护相结合，可能会比单纯的社会或生态知识更广泛地促进有效保护计划的实施。
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