Judul: The correlation between climate change adaptation strategy with the income level of traditional fishermen.
Abstrak: Dampak perubahan iklim bukan hanya pada kondisi ekologis sekitar, namun juga pada sektor perikanan tangkap yang menyebabkan terjadinya perubahan perilaku pada nelayan. Perubahan perilaku tersebut dimaksudkan untuk dapat beradaptasi dari perubahan iklim yang terjadi. Oleh karena itu, tujuan penelitian ini akan menganalisis strategi adaptasi perubahan iklim pada nelayan tradisional, menganalisis tingkat pendapatan nelayan tradisional, dan menganalisis hubungan strategi adaptasi perubahan iklim dengan tingkat pendapatan nelayan tradisional di Kelurahan Pulau Kelapa, Kepulauan Seribu Utara, Kabupaten Kepulauan Seribu, DKI Jakarta. Data kuantitatif diperoleh melalui wawancara terstruktur dengan menggunakan kuesioner yang diberikan kepada responden sedangkan data kualitatif diperoleh melalui metode wawancara mendalam dengan informan dan observasi lapang. Responden dipilih sebanyak 45 responden menggunakan teknik accidental sampling dan informan ditentukan menggunakan teknik bola salju (snowball). Penelitian ini menemukan bahwa terdapat hubungan antara strategi adaptasi yang dilakukan nelayan dengan tingkat pendapatan nelayan tradisional, yang ditunjukan semakin tinggi strategi adaptasi yang dilakukan nelayan tradisional akan semakin tinggi tingkat pendapatan nelayan tradisional., The impact of climate change is not only on the surrounding ecological conditions, but also on the capture fisheries sector which causes changes in behavior among fishermen. These changes in behavior are intended to be able to adapt to climate changes that occur. Therefore, the aim of this research is to analyze climate change adaptation strategies for traditional fishermen, analyze the income level of traditional fishermen, and analyze the relationship between climate change adaptation strategies and the income level of traditional fishermen in Pulau Kelapa Village, North Seribu Islands, Seribu Islands Regency, DKI Jakarta. Quantitative data was obtained through structured interviews using questionnaires given to respondents, while qualitative data was obtained through in-depth interviews with informants and field observations. 45 respondents selected using an acidental sampling sampling technique and informants will be determined using the snowball technique. This research found that there is a relationship between the adaptation strategies used by fishermen and the income level of traditional fishermen, which shows that the higher the adaptation strategies used by traditional fishermen, the higher the income level of traditional fishermen.
Keyword: nelayan tradisional, pendapatan nelayan, strategi adaptasi

Judul: Analysis the Level of Vulnerability of Fishermen Households in Response to Climate Change: Case of Pari Island, South Seribu Islands, DKI Jakarta.
Abstrak: Perubahan iklim mengakibatkan terjadinya peningkatan intensitas dan frekuensi cuaca ekstrim, perubahan pola hujan, pengingkatan suhu air laut, dan terjadinya kekacauan musim angin. Dampak tersebut kemudian berpengaruh terhadap tingkat kerentanan rumah tangga nelayan. Penelitian ini menggunakan pendekatan kualitatif dan kuantitatif. Pendekatan kualitatif dilakukan dengan observasi dan wawancara mendalam kepada 4 orang informan sedangkan pendekatan kuantitatif dilakukan dengan menggunakan kuesioner kepada 50 responden dengan teknik snowball. Teknik pengolahan dan analisis data dilakukan menggunakan microsoft excel 2019 dan rumus perhitungan LVI-IPCC. Hasil penelitian menunjukkan bahwa nilai keterpaparan pada RT01 sebesar 0,49 dan RT04 sebesar 0,57. Selanjutnya, nilai kapasitas adaptif RT01 sebesar 0,59 dan RT04 sebesar 0,55. Sementara itu, nilai sensitivitas pada RT01 sebesar 0,40 dan RT04 sebesar 0,42. Nilai komponen tersebut kemudian menghasilkan nilai indeks kerentanan rumah tangga nelayan dimana indeks kerentanan RT04 lebih tinggi dibandingkan RT01 dengan nilai -0,04 pada RT01 dan 0,09 pada RT04. Kata kunci: kerentanan, perubahan iklim, rumah tangga nelayan, Climate change has resulted in an increase in the intensity and frequency of extreme weather, changes in rainfall patterns, increased sea temperatures, and chaotic wind seasons. These impacts then affect the level of vulnerability of fishing households. This research uses qualitative and quantitative approaches. The qualitative approach was conducted through observation and in-depth interviews with 4 informants, while the quantitative approach was conducted using a questionnaire to 50 respondents using the snowball technique. Data processing and analysis techniques were carried out using Microsoft Excel 2019 and the LVI-IPCC calculation formula. The results showed that the exposure value at RT01 was 0.49 and RT04 was 0.57. Furthermore, the adaptive capacity value of RT01 was 0.59 and RT04 was 0.55. Meanwhile, the sensitivity value at RT01 was 0.40 and RT04 was 0.42. The component values then produced the value of the vulnerability index of fishing households where the vulnerability index of RT04 was higher than RT01 with a value of -0.04 in RT01 and 0.09 in RT04. Keywords: climate change, fisher households, vulnerability
Keyword: climate change, Livelihood Vulnerability Index (LVI), fisher household

Judul: Pelabelan Super Vertex Magic
Abstrak: Super vertex magic labeling is labeling on graph with is a set of edges mapped into and is a set of vertices mapped into . It has a vertex magic labeling in which and represents the size and order of the graph respectively. This manuscript proves that paths, cyclics, and disjoint union of cyclics have a super vertex magic labeling. There are four theorems to be discussed. The first theorem proves that path is super vertex magic if and only if is odd and . The second theorem proves that cyclic is super vertex magic if and only if is odd. The third theorem proves that bijection function from an edge set onto of graph can be extended to a super vertex magic labeling if and only if the set amount of edge label that incidents with a vertex in the graph, consists of sequential integers as many as vertices in the graph. The fourth theorem proves that disjoint union of the cyclics consists of cyclics with each cyclic has vertices is super vertex magic if and only if and are odd.
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