The present study investigated the composition, density, abundance, and diversity of benthic fora... more The present study investigated the composition, density, abundance, and diversity of benthic foraminifera, and their relationship with various physico-chemical parameters such as pH, salinity, temperature, and sediment grain size. Foraminifera were collected from the intertidal zone using sediment cores and extracted from the sediments through sieving. The extracted foraminifera were stained with Rose bengal solution and preserved with buffered formalin. A total of 9,459 individuals of foraminifera were identified, consisting of 39 species classified into four orders, 16 families, and 21 genera. The top three most abundant genera were Calcarina, Baculogypsina, and Amphistegina. The comparison (ANOVA) of the abundance of foraminifera among the six stations revealed highly significant differences (P= 0.000; df= 38). Station 1 exhibited the highest diversity of foraminifera on Pujada Island, as indicated by an H’ value of 3.06. Conversely, station 6 displayed the lowest diversity, with...
Shrimp industry in the Philippines plays a vital role in the economy by contributing a total prod... more Shrimp industry in the Philippines plays a vital role in the economy by contributing a total production in the fisheries sector of 60,000 tons of production and 7,000 tons of shrimp exported in overseas markets such as South Korea, Japan, USA and others. This study aimed to describe the various cultural and operational characteristics of a shrimp farm (Penaeus vannamei) in Davao region, and assessed the current risk and challenges experienced by shrimp farmers during the time of pandemic. This study made use of semi-structured questionnaire and focused on shrimp farmers, operators in the provinces of Davao Oriental, Davao del Sur and Davao de Oro as respondents (N=41 farmers). Results showed that small scale shrimp farming averaged 10 tons/ha per cropping; the highly intensive farms yielded 24 tons/ha per cropping. Most operators used generator machines as source of electricity to facilitate aeration accompanied with paddle wheel and blower in some farms; about 2/3 of the commercial...
Plants are often exposed to stressors such as shading and soil compaction, influencing their morp... more Plants are often exposed to stressors such as shading and soil compaction, influencing their morphology and physiology. This study aimed to determine the effects of shading (e.g. using black, white, and transparent cloths) and disturbance on the growth, leaf area, and biomass allocation of plants using tomatoes (Lycopersicon esculentum). The establishment of the study area and gathering of field data were conducted for one month at Davao Oriental State College of Science and Technology (DOSCST), Mati City, Davao Oriental. In the shading experiment, the leaf weight ratio (LWR) of the plants was revealed to be directly proportional to their exposure to sunlight. A similar trend was observed on the specific leaf area (SLA) and leaf area ratio (LAR) values, with the SLA and LAR values higher on the plots with the most shading and decreasing with increasing exposure to sunlight. In the disturbance experiment, the LWR and SLA were observed to be inversely proportional to the intensity of ...
In the small-scale fisheries, women have played a significant role, upending their traditional ro... more In the small-scale fisheries, women have played a significant role, upending their traditional role of domestic activities. In this study, we shed light on various roles of women in their coastal communities in Lupon and Governor Generoso, Davao Oriental, and how their different activities revolve around the fisheries sector. A total of 88 women were randomly interviewed using semi-structured questionnaires in their homes and fish landing sites. Women participated in the fisheries between the ages of 35 and 55 years; in terms of educational attainment, they were primarily high school level and mostly were Cebuano. About 50% of them have access to credit, which they use for small businesses, purchasing fishing equipment, and the needs of their families. Women were involved in activities such as pre-fishing, fishing offshore, post-fishing, and fishing-related activities. Women were also engaged in collecting shells such as latticed top shells (Tectus fenestratus), little bear conch (C...
Executive Summary. The closed fishing season policy is annually imposed in Davao Gulf to allow th... more Executive Summary. The closed fishing season policy is annually imposed in Davao Gulf to allow the fish stocks to recover and address the declining fish catch. Whether the closed season is effective in reducing catch and effort however, is still not determined. An assessment on the closed fishing season included survey and focus groups in Governor Generoso, Lupon, Davao City, Sta. Maria, Don Marcelino and Malita, as well as catch assessments using data from Philippine Statistics Office (PhilStat), and GPS tracking of willing small-scale fishers. A survey and an in-depth interview was also conducted to determined impacts on the fisheries market chain. Results of the study show that multiple factors contributed to the successful implementation of the closed fishing season in the Davao Gulf. Catch data analyses show that small scale fish catches have increased (municipal fishers) compared to commercial fish catches. Together the results show that the closed fishing season was effective...
The fishing industry is considered one of the essential industries in the Philippines, especially... more The fishing industry is considered one of the essential industries in the Philippines, especially in Surigao del Sur, and provides food and employment. By investigating how fishers’ well-being can be affected by various anthropogenic stressors, a solution can be crafted to address the problem. Focus Group Discussion (FGD) was used to assess fisher’s well-being through the five dimensions such as social, economic, ecological, spiritual, and cultural. A total of N = 174 respondents participated in six FGDs conducted in the villages of Cortes, Lanuza, and Lianga and a separate focus group was used to validate the results of the study. Results showed variation in terms of social connectivity, Lanuza and Lianga scored medium high (3) but in terms of membership to cooperative, Cortes and Lanuza scored high (4). In the cultural dimension (governance and advocacy for marine conservation), Cortes scored high (4) and for values (communication and beliefs), all three sites scored highly (5). F...
IOP Conference Series: Earth and Environmental Science, 2022
The groupers, locally known as “kerapu” in Indonesia, are commercially valuable fish in Indonesia... more The groupers, locally known as “kerapu” in Indonesia, are commercially valuable fish in Indonesia, including Aceh. The groupers are the first fish family to be plundered in most countries’ fisheries industries. However, the biodiversity information of the groupers fished in Aceh is limited. This study was aimed to inventories the grouper species landed in Aceh fish landing sites. The data collection was performed in some fish landing locations (TPI) located in Aceh. In general, this study revealed that Aceh has high grouper diversity. In total, 35 species of the Epinephelidae family were recorded. Epinephelus was the dominant genus found, followed by Cephalopholis, Plectropomus, Variola, Aethaloperca, Anyperodon, and Hyporthodus. Simeulue, Weh island, and Banda Aceh were the locations with the highest diversity of grouper in Aceh. Overall, the data collected from this study would be beneficial for the future management plan of grouper in Aceh and Indonesia.
Fishing communities depend on natural resources to fulfill their livelihood needs, making them mo... more Fishing communities depend on natural resources to fulfill their livelihood needs, making them more vulnerable during climatic events. However, despite the impacts brought by climate hazards, fishing communities have adaptation strategies and the capacity to be resilient. The study assessed fishing communities' exposure and capacity to adapt to various climatic events by determining their resilience to natural hazards. A focus group discussion (N = 80) and stakeholder meetings (N = 100) were conducted to assess the resilience of fishers in selected fishing villages in Surigao del Sur. A total of six fishing villages with 10–15 fisher participants attended the focus groups. Twelve behavioral indicators were used for the three components of resilience: preparedness, coping, and adaptive capacity. The finding shows that Habag and Nurcia were most exposed to climate hazards among fishing villages in Surigao del Sur, with an average of 3.14. However, Nurcia village had the highest av...
The present study investigated the composition, density, abundance, and diversity of benthic fora... more The present study investigated the composition, density, abundance, and diversity of benthic foraminifera, and their relationship with various physico-chemical parameters such as pH, salinity, temperature, and sediment grain size. Foraminifera were collected from the intertidal zone using sediment cores and extracted from the sediments through sieving. The extracted foraminifera were stained with Rose bengal solution and preserved with buffered formalin. A total of 9,459 individuals of foraminifera were identified, consisting of 39 species classified into four orders, 16 families, and 21 genera. The top three most abundant genera were Calcarina, Baculogypsina, and Amphistegina. The comparison (ANOVA) of the abundance of foraminifera among the six stations revealed highly significant differences (P= 0.000; df= 38). Station 1 exhibited the highest diversity of foraminifera on Pujada Island, as indicated by an H’ value of 3.06. Conversely, station 6 displayed the lowest diversity, with...
Shrimp industry in the Philippines plays a vital role in the economy by contributing a total prod... more Shrimp industry in the Philippines plays a vital role in the economy by contributing a total production in the fisheries sector of 60,000 tons of production and 7,000 tons of shrimp exported in overseas markets such as South Korea, Japan, USA and others. This study aimed to describe the various cultural and operational characteristics of a shrimp farm (Penaeus vannamei) in Davao region, and assessed the current risk and challenges experienced by shrimp farmers during the time of pandemic. This study made use of semi-structured questionnaire and focused on shrimp farmers, operators in the provinces of Davao Oriental, Davao del Sur and Davao de Oro as respondents (N=41 farmers). Results showed that small scale shrimp farming averaged 10 tons/ha per cropping; the highly intensive farms yielded 24 tons/ha per cropping. Most operators used generator machines as source of electricity to facilitate aeration accompanied with paddle wheel and blower in some farms; about 2/3 of the commercial...
Plants are often exposed to stressors such as shading and soil compaction, influencing their morp... more Plants are often exposed to stressors such as shading and soil compaction, influencing their morphology and physiology. This study aimed to determine the effects of shading (e.g. using black, white, and transparent cloths) and disturbance on the growth, leaf area, and biomass allocation of plants using tomatoes (Lycopersicon esculentum). The establishment of the study area and gathering of field data were conducted for one month at Davao Oriental State College of Science and Technology (DOSCST), Mati City, Davao Oriental. In the shading experiment, the leaf weight ratio (LWR) of the plants was revealed to be directly proportional to their exposure to sunlight. A similar trend was observed on the specific leaf area (SLA) and leaf area ratio (LAR) values, with the SLA and LAR values higher on the plots with the most shading and decreasing with increasing exposure to sunlight. In the disturbance experiment, the LWR and SLA were observed to be inversely proportional to the intensity of ...
In the small-scale fisheries, women have played a significant role, upending their traditional ro... more In the small-scale fisheries, women have played a significant role, upending their traditional role of domestic activities. In this study, we shed light on various roles of women in their coastal communities in Lupon and Governor Generoso, Davao Oriental, and how their different activities revolve around the fisheries sector. A total of 88 women were randomly interviewed using semi-structured questionnaires in their homes and fish landing sites. Women participated in the fisheries between the ages of 35 and 55 years; in terms of educational attainment, they were primarily high school level and mostly were Cebuano. About 50% of them have access to credit, which they use for small businesses, purchasing fishing equipment, and the needs of their families. Women were involved in activities such as pre-fishing, fishing offshore, post-fishing, and fishing-related activities. Women were also engaged in collecting shells such as latticed top shells (Tectus fenestratus), little bear conch (C...
Executive Summary. The closed fishing season policy is annually imposed in Davao Gulf to allow th... more Executive Summary. The closed fishing season policy is annually imposed in Davao Gulf to allow the fish stocks to recover and address the declining fish catch. Whether the closed season is effective in reducing catch and effort however, is still not determined. An assessment on the closed fishing season included survey and focus groups in Governor Generoso, Lupon, Davao City, Sta. Maria, Don Marcelino and Malita, as well as catch assessments using data from Philippine Statistics Office (PhilStat), and GPS tracking of willing small-scale fishers. A survey and an in-depth interview was also conducted to determined impacts on the fisheries market chain. Results of the study show that multiple factors contributed to the successful implementation of the closed fishing season in the Davao Gulf. Catch data analyses show that small scale fish catches have increased (municipal fishers) compared to commercial fish catches. Together the results show that the closed fishing season was effective...
The fishing industry is considered one of the essential industries in the Philippines, especially... more The fishing industry is considered one of the essential industries in the Philippines, especially in Surigao del Sur, and provides food and employment. By investigating how fishers’ well-being can be affected by various anthropogenic stressors, a solution can be crafted to address the problem. Focus Group Discussion (FGD) was used to assess fisher’s well-being through the five dimensions such as social, economic, ecological, spiritual, and cultural. A total of N = 174 respondents participated in six FGDs conducted in the villages of Cortes, Lanuza, and Lianga and a separate focus group was used to validate the results of the study. Results showed variation in terms of social connectivity, Lanuza and Lianga scored medium high (3) but in terms of membership to cooperative, Cortes and Lanuza scored high (4). In the cultural dimension (governance and advocacy for marine conservation), Cortes scored high (4) and for values (communication and beliefs), all three sites scored highly (5). F...
IOP Conference Series: Earth and Environmental Science, 2022
The groupers, locally known as “kerapu” in Indonesia, are commercially valuable fish in Indonesia... more The groupers, locally known as “kerapu” in Indonesia, are commercially valuable fish in Indonesia, including Aceh. The groupers are the first fish family to be plundered in most countries’ fisheries industries. However, the biodiversity information of the groupers fished in Aceh is limited. This study was aimed to inventories the grouper species landed in Aceh fish landing sites. The data collection was performed in some fish landing locations (TPI) located in Aceh. In general, this study revealed that Aceh has high grouper diversity. In total, 35 species of the Epinephelidae family were recorded. Epinephelus was the dominant genus found, followed by Cephalopholis, Plectropomus, Variola, Aethaloperca, Anyperodon, and Hyporthodus. Simeulue, Weh island, and Banda Aceh were the locations with the highest diversity of grouper in Aceh. Overall, the data collected from this study would be beneficial for the future management plan of grouper in Aceh and Indonesia.
Fishing communities depend on natural resources to fulfill their livelihood needs, making them mo... more Fishing communities depend on natural resources to fulfill their livelihood needs, making them more vulnerable during climatic events. However, despite the impacts brought by climate hazards, fishing communities have adaptation strategies and the capacity to be resilient. The study assessed fishing communities' exposure and capacity to adapt to various climatic events by determining their resilience to natural hazards. A focus group discussion (N = 80) and stakeholder meetings (N = 100) were conducted to assess the resilience of fishers in selected fishing villages in Surigao del Sur. A total of six fishing villages with 10–15 fisher participants attended the focus groups. Twelve behavioral indicators were used for the three components of resilience: preparedness, coping, and adaptive capacity. The finding shows that Habag and Nurcia were most exposed to climate hazards among fishing villages in Surigao del Sur, with an average of 3.14. However, Nurcia village had the highest av...
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