Purpose This present study aims to investigate the effect of electronic word of mouth (e-WoM) behavior in Muslim social media on building a halal brand image (HBI) and its influence on purchase intention (PI). Also, Muslims’ altruism (ALT) and moral obligation (MO) were hypothesized as motivators to engage in e-WoM behavior. Design/methodology/approach A survey involving 320 members of a Muslim halal forum was conducted. Further, structural equation modeling was used to assess the proposed hypotheses. Findings It is found that ALT and MO positively influence e-WoM behavior. Furthermore, E-WoM also significantly affects HBI and PI. Meanwhile, HBI has a positive effect on PI. Practical implications Indonesian halal marketers face difficulties developing a halal image as a critical differentiator, mainly due to the upsurging number of halal certifications and the consumer’s perception that all products available in the market are halal. This present study offers an alternative strategy for Indonesian marketers to strengthen the HBI through Muslim social media amidst the cluttering halal brands in the market. Social implications The development of HBI combined with social media interactions will accelerate the halal brand awareness and usage among society, especially in Indonesia, a Major Muslim country. Originality/value This present study provides empirical evidence that social media e-WoM, despite its lack of physical interaction and opportunity to scrutinize the halal features, effectively creates HBI and influences PI among Muslims.

Forest clove (Zyzygium aromaticum) is a type of wild clove found in Moluccas. The increasing interest of farmers in cultivating this plant leads to complete their information of morpho-agronomical characteristics which could provide diversity reflecting morpho-agronomical their distribution areas. This study aimed to characterize the morpho-agronomical traits of Forest clove plants in Moluccas. By survey, Forest clove more than 15 year old tree totalling of 50 populations were observed their 54 morpho-agronomical characteristics in two areas (Ambon and Seram) from March to June 2018. Two aromatic cloves, namely Tuni and Zanzibar were used for comparative analysis. The results showed that Forest cloves had a similarity of 78% among the population and grouped into 3 groups with a morpho-agronomical variation of 22%. On the contrary, Forest cloves and comparators (Tuni and Zanzibar) had morpho-agronomical differences of 58%. Based on the main component analysis, there were 11 most influential characters of Forest cloves (leaf size index, leaf length, leaf width, leaf area, petiole length, flower length, diameter of flower tube, ripe flower weight, fruit length, fruit width, and fruit weight) which could be descriptors for this plant species.

During the northwest monsoon (NWM), southerly flow off the Natuna Islands appeared as the extension of the turning Vietnam coastal jet, known as Natuna off-shelf current (NOC). NOC is generated by the interaction of wind stress and the North Natuna Sea’s bottom topography. The purposes of the present study is to investigate the vertical variability of NOC and its relation to El Niňo Southern Oscillation (ENSO) using Marine Copernicus reanalysis data. The vertical variability refers to the spatial distribution of NOC pattern at the surface layer, thermocline layer, and deep/bottom layer.  in 2014 as representative of normal ENSO condition. To investigate the effect of ENSO, the spatial distribution of NOC in 2011 and 2016 were compared which represent the La Niňa and El Niňo conditions, respectively. The results show that NOC starts to generate at the southeast monsoon season to the transition I season and peaks in the northwest monsoon season. The occurrence of NOC is identified at all depth layers with the weakened NOC at the deep layer. Related to the ENSO effect, La Niňa tends to strengthen NOC while El Niňo tends to weaken NOC. These are releted with the strengthening and weakening northerly wind speed during La Niňa and El Niňo, Respectively. During La Niňa events, the NOC occurs more frequently than during El Niňo. Thus, beside affecting the magnitude of NOC, ENSO also influence the frequency occurrence of NOC.

Urban forests have a high intensity of exposure from external factors such as air pollution and human activity disturbances. As a result, fallen trees and tree defects often occurred and can endanger the people around the city. This study aimed to assess tree health in Cianjur Urban Forest and formulate tree health management strategies. The tree health assessment used the Forest Health Monitoring (FHM) method. The management strategy was formulated using the Strengths, Weaknesses, Opportunities, and Threats (SWOT) Matrix and Quantitative Strategic Planning Matrix (QSPM). Tree sampling using FHM plots determined about 534 trees from 30 species. The results showed that Cianjur Urban Forest had high land productivity and biodiversity. The canopy condition was 86.41% in good condition. The results revealed that 92.70%, 5.34%, 1.31%, and 0.56% of the trees were in healthy, lightly, moderately, and heavily damaged conditions, respectively. The tree species that suffered the most damage was Acacia denticulosa. The most types of tree damage were leaf damage and rotten wood. Cianjur Urban Forest benefits the community as a place for natural tourism, sports, education, and expand job opportunities. However, the management of Cianjur Urban Forest has not been implemented effectively. There are three priority strategies to improve tree health management in Cianjur Urban Forest, i.e., conducting the assessment, evaluation, and action on damaged trees, community cooperation, institutional strengthening development programs, and optimizing collaboration and government commitment with managers.Keywords: Forest Health Monitoring, SWOT analysis, QSPM matrix, urban forest

HighlightThe sex ratio of giant prawns in the waters of fe- male groceries is 3 times higher than that of males.The growth characteristic of male and female   giant   prawns   is   negative   allometry, but the male and female body shapes are fat.Total   mortality, capture mortality, catch rate, male prawns are higher than females.The male infinitive growth is longer than the female,but the female’s growth rate is faster than male.AbstractGiant prawns (Macrobrachium rosenbergii) is a crustacean class that has the larg- est size and its habitat in Sembakung waters included brackish water (estuarine) with a salinity variable of 6.5+0.5 ppt and a temperature variable of 28.5+0.5OC and a variable pH of 6 (acidic). The objective of this research was to analyze the growth and mortality model of giant prawns (M. rosenbergii) that was taken from the catch of fisherman in the estuary, Sembakung sub-district, Nunukan Regency, Indonesia. The study was conducted for 3 months from November 2019 to Janu- ary 2020. The sampling was by using a survey method with purposive judgment sampling based on a catch of 14 fishermen who used the bottom fish pot from Sembakung waters, Nunukan Regency (Indonesia). The data collection included data of sex, total length, and the total weight of giant prawns. While analysis was employed for growth pattern, condition index, Von Bertalanffy growth, and mor- tality. The results obtain the sex ratio of male and female giant prawns 1:3.67. The growth pattern of male and female giant prawns were allometric negative. The growth of the von Bertalanffy model for infinitive growth of male giant prawns were 21.219 cm and female were 18.42 cm, respectively the mortality from giant prawns obtain total male mortality is 2,257, catch mortality is 1.92 and natural mortality is 33.75% with an exploitation rate of 0.85 (85%). The total female mor- tality is 1.528, catch mortality is 120.1% and natural mortality is 32.69% with an exploitation rate of 0.786 (78.6%).