Ethnobotany Study of Seaweed Diversity and Its Utilization in Warambadi, Panguhalodo Areas of East Sumba District

This paper reports the ethnobotany study of seaweed diversity in Warambadi –Panguhalodo areas of East Sumba District, the island of Sumba. The study recorded19 genera of 54 species of seaweed, which were utilized as food or edible seaweed.The group consisted of 17 species of green algae, 17 species of red algae, and 20species of brown algae. The study also reported that 18 genera of 38 species weretraditionally utilized for medicinal purposes as herbal medicine. The herbal speciesconsisted of 7 species of green algae, 13 species of red algae, and 18 species ofbrown algae.Seaweed is traditionally consumed as food in various forms: raw as salad and vegetable,as pickle with sauce of allspice or with vinegar, as relish or sweetened jellies and alsocooked for vegetable soup. As herbal medicine seaweed is usually used for traditionalcosmetics, as antipyretic and antiseptic, as vermifuges, and treatments for cough andasthma, hemorrhoid, nosebleed and boils, goiter and scrofula, stomach ailments andurinary diseases.Indigenous knowledge on seaweed still exist and are continually employed bypeople living in particular areas such as the Sumba and Sabu ethnic groups. Yet,the knowledge is gradually decreasing due to localities, socio-economic change andcultural development

The seaweed industry in the Pacific islands

Resource /Energy Economics and Policy,

Structure, Conduct and Performance of Value Chain in Seaweed farming in India

Among the three types of technologies available in the fisheries sector in India, seaweed farming, initially promoted as a livelihood option, has emerged as the one area which probably has the maximum potential for up-scaling. This paper has examined the structure, conduct and performance of the value chain in seaweed farming in India inquiring into the production, institutional, marketing, social and community relationships in small-scale seaweed farming in the Ramanathapuram district of Tamil Nadu and the concept of self-help groups (SHG) as an increasingly workable option for coastal resources management. The value chain analysis of the sector has substantially proved that committed and synergistic production, marketing and institutional arrangements enabled by corporate leadership, offers considerable savings in transaction costs. The SHG model has also shown strong gender orientation in the initial years of seaweed culture in the district contributing to strong structural foundations to the movement. The seaweed sector in the coastal India has all the potential to rise from the low-income conditions normally associated with basic livelihood activities to higher levels of employment-income-consumption relationships.Agricultural and Food Policy,

ANALISIS PIGMEN KLOROFIL PADA ALGA Kappaphycus alvarezii YANG DIBUDIDAYAKAN DI TELUK TOTOK KABUPATEN MINAHASA TENGGARA

Macroalgae is a chlorophyll plant and its body is thallus and is able to live in polluted waters. The research was conducted with the intention of knowing the content of chlorophyll pigment and comparing the concentration of chlorophyll on Kappaphycus alvarezii using the formula Jeffrey and Humprey (1975) and Harbone (1987). The results obtained to separate the chlorophyll pigment on Kappaphycus alvarezii using the thin layer chromatography (KLT) method, thus obtained the pigment identified from Kappaphycus alvarezii namely chlorophyll a. Keywords: Kappaphycus alvarezii, thin-layer chromatography. Chlorophyll.AbstrakMakroalga merupakan tumbuhan yang berklorofil dan tubuhnya berupa thallus serta mampu hidup pada perairan tercemar. Penelitian ini dilakukan dengan tujuan untuk mengetahui kandungan pigmen klorofil dan membandingkan konsentrasi klorofil pada Kappaphycus alvarezii menggunakan rumus Jeffrey dan Humprey (1975) dan Harbone (1987). Hasil yang diperoleh untuk memisahkan pigmen klorofil pada Kappaphycus alvarezii menggunakan metode Kromatografi Lapis Tipis (KLT), sehingga diperoleh pigmen yang teridentifikasi dari Kappaphycus alvarezii yaitu klorofil a. Keywords : Kappaphycus alvarezii, Kromatografi Lapis Tipis. Klorofil

AQD highlights 2006

The SEAFDEC Aquaculture Department is mandated to: 1) promote and undertake aquaculture research that is relevant and appropriate for the region; 2) develop human resources for the region; and, 3) disseminate and exchange information in aquaculture. The Aquaculture Department in the Philippines maintains 4 stations: in Iloilo Province, the Tigbauan Main Station and Dumangas Brackishwater Station; in Guimaras, the Igang Marine Station; and, in Rizal, the Binangonan Freshwater Substation. Highlights are provided of the research programmes and activities conducted by the department during the year 2006

ANALISIS KANDUNGAN SENYAWA BIOAKTIF LOTION RUMPUT LAUT Kappaphycus alvarezii

Kappaphycus alvarezii mengandung senyawa aktif yang berpotensi digunakan sebagai zat aktif pada kosmetik, salah satunya adalah lotion rumput laut Kappaphycus alvarezii. Lotion rumput laut Kappaphycus alvarezii memiliki potensi sebagai antibakteri pada permasalahan kulit seperti gatal-gatal, panu dan lain-lain. Tujuan penelitian ini adalah untuk menganalisis kandungan senyawa pada lotion rumput laut Kappaphycus alvarezii. Metode penelitian ini menggunakan analisis kualitatif dan kuantitatif dengan dua perlakuan yakni sampel ditambahkan Kappaphycuz Alvarezii dan sampel tanpa penambahan rumput laut.  Skrining fitokimia dilakukan hanya sekali. Hasil skrining senyawa bioaktif pada lotion didapatkan senyawa flavonoid, alkaloid, saponin, fenolik, triterpenoid dan tanin. Penambahan bubur rumput laut Kappaphycus alvarezii meningkatkan senyawa flavonoid, triterpenoid dan tanin. Senyawa yang paling tinggi terdapat pada lotion rumput laut Kappaphycus alvarezii adalah tanin dengan persentase 24% dalam satu gram sampel. Rata-rata nilai viskositas lotion rumput laut Kappaphycus alvarezii adalah 7.886 cP sedangkan rata-rata nilai viskositas lotion kontrol adalah 8.066,67 cP. Rata-rata nilai pH lotion rumput laut Kappaphycus alvarezii adalah 8,37. Rata-rata nilai pH lotion kontrol adalah 8,50. Penambahan Kappaphycus alvarezii mempempengaruhi lotion dengan menurunkan nilai pH dan Viskositas serta mengencerkan tekstur lotion. Pengamatan secara indrawi/organoleptik kedua lotion berwarna putih dan berbau khas lotion.Kappaphycus alvarezii mengandung senyawa aktif yang berpotensi digunakan sebagai zat aktif pada kosmetik, salah satunya adalah lotion rumput laut Kappaphycus alvarezii. Lotion rumput laut Kappaphycus alvarezii memiliki potensi sebagai antibakteri pada permasalahan kulit seperti gatal-gatal, panu dan lain-lain. Tujuan penelitian ini adalah untuk menganalisis kandungan senyawa pada lotion rumput laut Kappaphycus alvarezii. Metode penelitian ini menggunakan analisis kualitatif dan kuantitatif dengan dua perlakuan yakni sampel ditambahkan Kappaphycuz Alvarezii dan sampel tanpa penambahan rumput laut.  Skrining fitokimia dilakukan hanya sekali. Hasil skrining senyawa bioaktif pada lotion didapatkan senyawa flavonoid, alkaloid, saponin, fenolik, triterpenoid dan tanin. Penambahan bubur rumput laut Kappaphycus alvarezii meningkatkan senyawa flavonoid, triterpenoid dan tanin. Senyawa yang paling tinggi terdapat pada lotion rumput laut Kappaphycus alvarezii adalah tanin dengan persentase 24% dalam satu gram sampel. Rata-rata nilai viskositas lotion rumput laut Kappaphycus alvarezii adalah 7.886 cP sedangkan rata-rata nilai viskositas lotion kontrol adalah 8.066,67 cP. Rata-rata nilai pH lotion rumput laut Kappaphycus alvarezii adalah 8,37. Rata-rata nilai pH lotion kontrol adalah 8,50. Penambahan Kappaphycus alvarezii mempempengaruhi lotion dengan menurunkan nilai pH dan Viskositas serta mengencerkan tekstur lotion. Pengamatan secara indrawi/organoleptik kedua lotion berwarna putih dan berbau khas lotion

Assessing the impacts of nonindigenous marine macroalgae: an update of current knowledge

Nonindigenous marine species continue to be one of the foremost threats to marine biodiversity. As an update to a 2007 review of the impacts of introduced macroalgae, we assessed 142 additional publications to describe species’ impacts as well as to appraise information on the mechanisms of impact. Only 10% of the currently known nonindigenous macroalgal species were subjects of ecological impact studies, with changed community composition as the most commonly reported effect. Economic impacts were rarely published. Recent research has focused on the impacts of introduced macroalgal assemblages: red algal introductions to the Hawaiian Islands and turf algae in the Mediterranean. Several general issues were apparent. First, many publications included nonsignificant results of statistical analyses but did not report associated power. As many of the studies also had low effect and sample size, the potential for type II errors is considerable. Second, there was no widely accepted framework to categorize and compare impacts between studies. Information in this updated review was still too sparse to identify general patterns and mechanisms of impact. This is a critical knowledge gap as rates of introductions and hence impacts of nonindigenous macroalgae are expected to accelerate with climate change and increasing global trade connectivity

Production of carrageenan by different strains of Kappaphycus alvarezii cultivated in Serang, Indonesia

Kappaphycus alvarezii is one of the main seaweeds cultivated in Indonesia. Its use as a raw material for the kappa-carrageenan industry has increased its cultivation activities. However, standard cultivation protocol for Kappaphycus alvarezii has yet to be well-documented, particularly on strain selection for kappa-carrageenan production. There are various strains of Kappaphycus alvarezii grown in Indonesia, specifically in Serang, Banten such as green, red, and yellowish green strains. In this study, growth rate, carrageenan yield, and gel strength from different strains of Kappaphycus alvarezii were investigated. It was observed that the specific growth rate of green type (4.14% /day) differed significantly from the other two types (red; 3.41% /day and yellowish green; 3.47% /day). The red type had the highest yield of carrageenan (45.16%) followed by yellowish green (36.66%) and green strain (33.67%). Gel strength was not significantly affected by the strain variations where the observed values for yellowish green, green, and red strain were 344.46, 316.91 and 313.10 g/cm2 , respectively. Green Kappaphycus alvarezii had the highest biomass (0.27 g/cm/d) and carrageenan productivity (0.012 g/cm/d). It can be concluded that the green strain of Kappaphycus alvarezii is the most suitable for cultivation in Serang, particularly for the kappa-carrageenan industry. ***************************************************************************** : Kappaphycus alvarezii adalah sebahagian daripada rumpai air yang dituai di Indonesia. Penggunaannya sebagai bahan dasar kepada industri kappa-carrageenan telah menambah kepada aktiviti penuaian. Walau bagaimanapun, protokol penuaian biasa bagi Kappaphycus alvarezii adalah tertakluk pada dokumentasi penuh terutama dalam pemilihan strain pada penghasilan kappa-carrageenan. Terdapat pelbagai jenis strain Kappaphycus alvarezii yang tumbuh di Indonesia, terutama di Serang, Banten seperti hijau, merah, dan strain hijau kekuningan. Kajian ini, kadar pertumbuhan, hasil karaginan dan kekuatan gel daripada pelbagai strain Kappaphycus alvarezii telah dikaji. Didapati bahawa kadar pertumbuhan tertentu pada jenis hijau (4.14% /hari) berbeza ketara berbanding dari dua jenis lain (merah; 3.41% /hari dan hijau kekuningan; 3.47% /hari). Jenis merah mempunyai hasil karaginan tertinggi (45.16%) diikuti oleh hijau kekuningan (36.66%) dan strain hijau (33.67%). Kekuatan gel adalah tidak ketara mempengaruhi kepelbagaian variasi di mana nilai yang dipantau pada strain hijau kekuningan, hijau dan merah adalah 344.46, 316.91 dan 313.10 g/cm2 , masing-masing. Kappaphycus alvarezii hijau mempunyai biojisim tertinggi (0.27 g/cm/d) dan penghasilan karaginan (0.012 g/cm/d). Kesimpulannya strain hijau Kappaphycus alvarezii adalah lebih sesuai untuk disemai di Serang terutamanya pada industri kappakaragina

Laju Pertumbuhan Kappaphycus alvarezii Metode Keramba Bambu Apung Kurungan di Melanau Barat Pulau Lemukutan

Tujuan dari penelitian ini adalah untuk mengetahui laju pertumbuhan rumput laut Kappaphycus alvarezii dan korelasi pertumbuhan rumput laut Kappaphycus alvarezii dengan parameter lingkungan fisika dan kimia perairan. Penelitian ini menggunakan bibit rumput laut Kappaphycus alvarezii hasil kultur jaringan dengan berat awal 80 g (berat basah) selama 50 hari penanaman. Metode budidaya yang digunakan yaitu keramba bambu apung kurungan. Hasil penelitian memperoleh pertumbuhan rumput laut dengan nilai berat akhir 292,18 g, pertumbuhan mutlak 212,18 g dan laju pertumbuhan spesifik 5,3% per hari. Hasil korelasi parameter lingkungan arus, kedalaman dan kecerahan menunjukkan korelasi kuat dan parameter lingkungan DO, salinitas, suhu, pH, nitrat, dan fosfat menunjukkan korelasi sangat kuat.Tujuan dari penelitian ini adalah untuk mengetahui laju pertumbuhan rumput laut Kappaphycus alvarezii dan korelasi pertumbuhan rumput laut Kappaphycus alvarezii dengan parameter lingkungan fisika dan kimia perairan. Penelitian ini menggunakan bibit rumput laut Kappaphycus alvarezii hasil kultur jaringan dengan berat awal 80 g (berat basah) selama 50 hari penanaman. Metode budidaya yang digunakan yaitu keramba bambu apung kurungan. Hasil penelitian memperoleh pertumbuhan rumput laut dengan nilai berat akhir 292,18 g, pertumbuhan mutlak 212,18 g dan laju pertumbuhan spesifik 5,3% per hari. Hasil korelasi parameter lingkungan arus, kedalaman dan kecerahan menunjukkan korelasi kuat dan parameter lingkungan DO, salinitas, suhu, pH, nitrat, dan fosfat menunjukkan korelasi sangat kuat