scholarly journals KEKAYAAN DAN POTENSI SENYAWA BIOAKTIF MAKROALGA DI PESISIR ATEP OKI, KABUPATEN MINAHASA, SULAWESI UTARA

2020 ◽  
Vol 8 (3) ◽  
pp. 7
Author(s):  
Silsia Dorkas Winowoda ◽  
Marina Flora Oktavine Singkoh ◽  
Ratna Siahaan
Keyword(s):  
Green Algae ◽  
Bioactive Compounds ◽  
Red Algae ◽  
Brown Algae ◽  
North Sulawesi ◽  
Sampling Locations

This study aims to analyze the richness and potential of macroalgae bioactive compounds on the Atep Oki Coast, District of Minahasa, North Sulawesi Province. This research was conducted in October 2019 until January 2020. Sampling used the roaming method in a predetermined location that is Atep Oki tidal/ intertidal coast. Sampling locations are spread over six coordinate points. Macroalgae found on the Atep Oki Coast assessed ten species belonging to three phyla, namely Chlorophyta (green algae), Ochrophyta (brown algae) and Rhodophyta (red algae). Chlorophyta members mean six species. Ochrophyta has members of three species and members of Rhodophyta only one species. The types of macroalgae found on the Atep Oki Coast provide bioactive compounds. Keywords : Macroalgae, Bioactive Compounds, Atep Oki Minahasa CoastAbstrak Penelitian ini bertujuan untuk menganalisis kekayaan jenis dan potensi senyawa bioaktif makroalga di Pesisir Atep Oki, Kabupaten Minahasa, Provinsi Sulawesi Utara. Penelitian ini telah dilaksanakan pada bulan Oktober 2019 sampai Januari 2020. Pengambilan sampel menggunakan metode jelajah di lokasi yang telah ditentukan yaitu pesisir pasang surut/intertidal Atep Oki. Lokasi pengambilan sampel tersebar di enam titik-titik koordinat. Makroalga yang ditemukan di Pesisir Atep Oki berjumlah sepuluh species yang tergolong ke dalam tiga filum yaitu Chlorophyta (alga hijau), Ochrophyta (alga cokelat) dan Rhodophyta (alga merah). Anggota Chlorophyta berjumlah enam species. Ochrophyta memiliki anggota tiga species dan anggota Rhodophyta hanya satu species. Jenis-jenis makroalga yang ditemukan di Pesisir Atep Oki berpotensi menghasilkan senyawa bioaktif. Kata kunci : Makroalga, Senyawa Bioaktif, Pesisir Atep Oki Minahasa

scholarly journals The inventory of macroalgae in the Mantehage Island waters, Wori sub-district, North Minahasa district in North Sulawesi Province

2016 ◽  
Vol 4 (2) ◽  
pp. 84
Author(s):  
Preisy Meicy Meriam Watung ◽  
Rene Charles Kepel ◽  
Lawrence J. L Lumingas
Keyword(s):  
Data Collection ◽  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Line Transect ◽  
Transect Line ◽  
North Sulawesi ◽  
Morphological Studies ◽  
Line Transect Method

This study was carried out in Mantehage Island waters, covering Bango, Tinongko, Buhias, and Tangkasi, with an objective of knowing the taxa composition of macroalgae through morphological studies. Data collection  used  Line Transect method with quadrat. Three 100 m-transect line were placed perpendicular to the coastline. Distance between transects was 50 m, and the quadrat used was 1 x 1 m². Results found 44 species of microalgae, consisting of 3 divisions, 3 classes, 10 orders, 18 families, and 26 genera. Green algae comprised 3 orders, 6 families, 11 genera, and 23 species. Brown algae consisted of 3 orders, 3 families, 5 genera, and 5 species. Red algae had 4 orders, 8 families, 10 genera and 16 species. Keyword : Macroalga, species, Mantehage Island. Abstrak Penelitian ini dilakukan di pulau Mantehage, yakni Desa Bango, Tinongko, Buhias, dan Desa Tangkasi,  dengan tujuan untuk mengetahui komposisi taksa makroalga melalui pendekatan morfologi. Pengambilan data dilakukan dengan menggunakan metode Line Transect kuadrat. Tiga garis transek sepanjang 100 m diletakkan tegak lurus garis pantai dengan jarak antar transek 50 m dan jarak antar kuadrat 10 m. Ukuran kuadrat yang dipakai adalah 1 x 1 m². Hasil penelitian menemukan 44 spesies, yang terdiri dari 3 divisi, 3 kelas, 10 ordo, 18 famili dan 26 genera. Alga hijau terdiri atas 3 ordo, 6 famili, 11 genera dan 23 spesies. Alga cokelat terdiri atas 3 ordo, 3 famili, 5 genera dan 5 spesies. Adapun alga merah terdiri atas 4 ordo, 8 famili, 10 genera dan 16 spesies. Kata Kunci : makroalga, species, Pulau Mantehage   2Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi

scholarly journals DELAYED LIGHT ACTION SPECTRA OF SEVERAL ALGAE IN VISIBLE AND ULTRAVIOLET LIGHT

1958 ◽  
Vol 42 (2) ◽  
pp. 243-250 ◽  
Author(s):  
G. C. McLeod
Keyword(s):  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Light Emission ◽  
Incident Light ◽  
Ultraviolet Region ◽  
Blue Green Algae ◽  
Action Spectra ◽  
Light Production ◽  
Carotenoid Absorption

Action spectra for delayed light production by several algae were determined from 250 to 750 mµ incident light. In the visible portion of the spectrum the action spectra resemble those reported by previous workers for photosynthesis and light emission. Blue-green algae had a maximum at 620 mµ, red algae at 550 mµ, whereas green and brown algae have action spectra corresponding to chlorophyll and carotenoid absorption. In the ultraviolet portion of the spectrum delayed light is emitted by algae down to 250 mµ incident light. The action spectra of the different algae are not alike in the ultraviolet portion of the spectrum. This indicates that pigments other than chlorophyll must be sensitizing or shielding the algae in the ultraviolet region.

scholarly journals The biodiversity of macroalgae in the coastal waters of Kora-Kora, East Lembean Sub-District, Minahasa Regency

2019 ◽  
Vol 7 (2) ◽  
pp. 383
Author(s):  
Rene Ch. Kepel ◽  
Desy M. H. Mantiri
Keyword(s):  
Data Collection ◽  
Green Algae ◽  
Coastal Waters ◽  
Red Algae ◽  
Brown Algae ◽  
Morphological Studies ◽  
Survey Results

This study was carried out in coastal waters of Kora-Kora, East Lembean Sub-District, Minahasa Regency with an objective of knowing the taxa composition of macroalgae through morphological studies. Data collection used exploring survey. Results found 10 species that consisted 1 species of red algae (Rhodophyta), 6 species of brown algae (Phaeophyta), and 3 species of green algae (Chlorophyta).Keyword: Macroalgae, Kora-Kora. ABSTRAKPenelitian ini dilakukan di perairan pesisir Kora-Kora, Kecamatan Lembean Timur, Kabupaten Minahasa dengan tujuan untuk mengetahui komposisi taksa makroalga melalui pendekatan morfologi. Pengambilan data dilakukan dengan menggunakan metode survei jelajah. Hasil penelitian menemukan 10 spesies, yang terdiri dari 1 spesies alga merah (Rhodophyta), 6 spesies alga cokelat (Phaeophyta)) dan 3 spesies alga hijau (Chlorophyta).Kata Kunci: makroalga, Kora-Kora.

scholarly journals Inventory and Historical Changes in the Marine Flora of Tomioka Peninsula (Amakusa Island), Japan

Diversity ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 158
Author(s):  
Eduard A. Titlyanov ◽  
Tamara V. Titlyanova ◽  
Mutsunori Tokeshi ◽  
Xiubao Li
Keyword(s):  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Cold Water ◽  
Current Data ◽  
Temperate Region ◽  
Tropical Regions ◽  
Marine Flora ◽  
The Tropics ◽  
Warm Temperate

Intensive algal sampling was conducted from 2012 to 2017 in the Tomioka Peninsula, Amakusa-Shimoshima Island (the East China Sea, Japan), yielding a total of 293 benthic macroalgal taxa, of which 63% were red algae, 16% were brown algae, and 19% were green algae. The majority (69%) of species were previously recorded only for the tropics and/or subtropics, whereas 31% of species were recorded for temperate latitudes. Among all species of algae found from 2012 to 2017 in the Tomioka Peninsula, 163 species (56%) were newly identified species for Amakusa-Shimoshima Island, including six taxa, which were recorded in Japan for the first time. Comparison of the current data from the Amakusa-Shimoshima Island with those of nearby tropical regions suggested that the recent marine flora of the Amakusa-Shimoshima Island was more closely affiliated with the flora of a warm-temperate region. Moreover, we found that the benthic flora of the Tomioka Peninsula was significantly changed between the 1950s (Segawa & Yoshida 1961) and 2012–2017. For example, the species diversity was increased by two times, mainly at the expense of red and green algae, and the biogeographic status of the benthic flora was changed from the flora of a cold-temperate region to the flora of a warm-temperate region, which could be attributed to an introduction of red algae from the tropics of South East Asia and widespread opportunistic green algae, as well as the disappearance of cold-water brown algae. Collectively, our data suggested that these changes were driven by the global warming effect on the ocean.

scholarly journals SESSILE ORGANISMS COLONISATION ON CONCRETE SUBSTRATE “CRYPTO” AT DIFFERENT DEPTH IN THE PATCH REEF OF PRAMUKA ISLAND

2017 ◽  
Vol 9 (1) ◽  
pp. 393
Author(s):  
Genadi Algadri ◽  
Beginer Subhan ◽  
Dondy Arafat ◽  
Ahmad Taufik Ghozali ◽  
Prakas Santoso ◽  
...  
Keyword(s):  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Patch Reef ◽  
Artificial Reef ◽  
Concrete Block ◽  
Test Results ◽  
Rehabilitation Process ◽  
The Media ◽  
Sessile Organisms

<p class="Paragraf"><em>Acceleration of the process of recovery of damaged reefs require rehabilitation, management and supervision of well-planned and sustainable. One of the rehabilitation process is to create artificial reef. This study aims to look at the rate of attachment of sessile organisms on cement media called “crypto”. A total of </em><em>270 cement media at each shelf. The size of cement media is 5x5x1 cm. The cement media were deployed at a depth of 6 meters and 10 meters. The rate of attachment of sessile organisms was compared between the upper and lower of the media side at each depth and between depths. Different organisms was observed colonized concrete media such as shells, sponges, worms, green algae, red algae, and brown algae. Percentage of coverage </em><em>of sessile biota at a depth of 6 meters </em><em>was significantly </em><em>higher than 10 meters</em><em>. Percentage of coverage</em><em> of sponges at a depth of 6 meters and 10 meters, showed no significantly different (P = 0.0670).</em><em> </em><em>The other sessile biota, value of the test results showed significant differences between depths, such as the brown algae (P&lt; 0.0001), red algae (P = 0.0003), and  green algae (P = 0.0022). The </em><em>type </em><em>succession occurs in this research </em><em>was likely a</em><em> primary succession.</em><em></em></p><p class="Paragraf"><em>                                                        </em></p><p><strong><em>Keywords</em></strong><em>: sessile biota, biodiversity, rehabilitation, concrete block,                         colonization, succession</em></p>

scholarly journals Biocompatible and biodegradable wound dressings on the basis of seaweed polysaccharides (review of literature)

2020 ◽  
Vol 179 (4) ◽  
pp. 109-115
Author(s):  
T. A. Kuznetsova ◽  
N. N. Besednova ◽  
V. V. Usov ◽  
B. G. Andryukov
Keyword(s):  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Wound Dressing ◽  
Biological Properties ◽  
Wound Dressings ◽  
Review Of Literature ◽  
Clinical Tests ◽  
Physicochemical And Biological Properties ◽  
Treatment Of Wounds

The review presents the characteristics of modern biocompatible and biodegradable wound dressings on the basis of seaweed polysaccharides (carrageenans of red algae, fucoidans and alginates of brown algae, ulvans of green algae) and notes the key physicochemical and biological properties that are important for constructing wounds dressings. There are information on various types of wound dressings and results of experimental and clinical tests of dressings in the treatment of wounds of various origins. Particular attention is paid to hydrogel dressings, since hydrogels meet the basic requirements for an ideal wound dressing, and many marine polysaccharides are able to form hydrogels.

scholarly journals SESSILE ORGANISMS COLONISATION ON CONCRETE SUBSTRATE “CRYPTO” AT DIFFERENT DEPTH IN THE PATCH REEF OF PRAMUKA ISLAND

2017 ◽  
Vol 9 (1) ◽  
pp. 393-403
Author(s):  
Genadi Algadri ◽  
Beginer Subhan ◽  
Dondy Arafat ◽  
Ahmad Taufik Ghozali ◽  
Prakas Santoso ◽  
...  
Keyword(s):  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Patch Reef ◽  
Artificial Reef ◽  
Concrete Block ◽  
Test Results ◽  
Rehabilitation Process ◽  
The Media ◽  
Sessile Organisms

Acceleration of the process of recovery of damaged reefs require rehabilitation, management and supervision of well-planned and sustainable. One of the rehabilitation process is to create artificial reef. This study aims to look at the rate of attachment of sessile organisms on cement media called “crypto”. A total of 270 cement media at each shelf. The size of cement media is 5x5x1 cm. The cement media were deployed at a depth of 6 meters and 10 meters. The rate of attachment of sessile organisms was compared between the upper and lower of the media side at each depth and between depths. Different organisms was observed colonized concrete media such as shells, sponges, worms, green algae, red algae, and brown algae. Percentage of coverage of sessile biota at a depth of 6 meters was significantly higher than 10 meters. Percentage of coverage of sponges at a depth of 6 meters and 10 meters, showed no significantly different (P = 0.0670). The other sessile biota, value of the test results showed significant differences between depths, such as the brown algae (P< 0.0001), red algae (P = 0.0003), and  green algae (P = 0.0022). The type succession occurs in this research was likely a primary succession.                                                        Keywords: sessile biota, biodiversity, rehabilitation, concrete block,                         colonization, succession

scholarly journals Biodiversity of epiphytic macroalgae (Chlorophyta, Ochrophyta, and Rhodophyta) on leaves of Zostera marina in the northwestern Iberian Peninsula

2019 ◽  
Vol 76 (1) ◽  
pp. 078
Author(s):  
Verónica García-Redondo ◽  
Ignacio Bárbara ◽  
Pilar Díaz-Tapia
Keyword(s):  
Iberian Peninsula ◽  
Introduced Species ◽  
Green Algae ◽  
Zostera Marina ◽  
Red Algae ◽  
Brown Algae ◽  
Functional Forms ◽  
Juvenile Stages ◽  
Abundance And Distribution ◽  
Northwestern Iberian Peninsula

The composition, abundance, and distribution of epiphytic macroalgae living in meadows of Zostera marina L. in the northwestern Iberian Peninsula are here analyzed. We identified 63 species: 40 red algae, 16 brown algae, and 7 green algae. Most of them are classified as filamentous or filiform functional forms, while Pneophyllum fragile Kütz. was the only encrusting species. In general, the surface covered by epiphytes on the leaves of Zostera marina was low and a 43% of species were only found in juvenile stages. Regarding their frequency, 10 species were collected in the majority of the areas, while others were rare. Most species were found both epiphytic and in other substrata of the meadows, but 9 were exclusively epiphytic. We detected 9 introduced species.

scholarly journals Biodiversity and Biomass of Macroalgae in Kotania Bay Waters, West Seram

2014 ◽  
Vol 2 (2) ◽  
pp. 63
Author(s):  
Hairati Arfah ◽  
Simon I Patty
Keyword(s):  
Green Algae ◽  
Red Algae ◽  
Brown Algae ◽  
Sampling Area ◽  
Gracilaria Crassa

Research on biodiversity and biomass of macroalgae in Kotania Bay waters, West Seram, Mollucas was conducted on July and August 2010. There were 20 species of macroalgae collected, in which 8 species were green algae (Chlorophyceae), 6 species of brown algae (Phaeophyceae), and 6 species of red algae (Rhodophyceae). The highest biomass of algae were collected in Loupesi, as much as 127,01 g/m2, followed by Burung Island (119.42 g/m2), Wael (63.43 g/m2), and the lowest were found in Buntal Island (20.64 g/m2). The macroalgae found in sampling area were dominated by Halimeda, Padina and Sargassum. The highest biomass were found on Sargassum duplicatum (570.00 g/m2), Halimeda opuntia (271.33 g/m2), Gracillaria crassa (198.13 g/m2), and Sargassum crispivallum (178.00 g/m2).   Keywords: Macroalgae, biodiversity, biomass, Kotania Bay, West Seram. ABSTRAK Penelitian tentang keanekaragaman dan biomassa  makro algae di perairan Teluk Kotania, Seram Barat, Maluku telah dilakukan pada bulan Juli dan Agustus 2010.  Algae yang dikumpulkan sebanyak 20 jenis, terdiri dari 8 jenis algae hijau (Chlorophyceae), 6 jenis algae coklat (Phaeophyceae) dan 6 jenis algae merah (Rhodophyceae).  Biomassa algae tertinggi ditemukan di Loupesi yaitu 127,01 g/m2 dikuti Pulau Burung 119,42 g/m2, Wael 63,43 g/m2 dan terendah di Pulau Buntal 20,64 g/m2. Algae yang dominan adalah Halimeda, Padina dan Sargasum. Biomassa tertinggi diperoleh pada jenis Sargassum duplicatum (570,00 g/m2), Halimeda opuntia (271,33 g/m2), Gracilaria crassa (198,13 g/m2), dan Sargassum crispivallum (178,00 g/m2).   Kata kunci: Makro algae, keanekaragaman, biomassa, Teluk Kotania, Seram Barat.

scholarly journals Potentially harmful Ostreopsis spp. in the coastal waters of Alexandria - Egypt

2012 ◽  
Vol 13 (2) ◽  
pp. 208 ◽  
Author(s):  
A. ISMAEL ◽  
Y. HALIM
Keyword(s):  
Green Algae ◽  
Coastal Waters ◽  
Red Algae ◽  
Brown Algae ◽  
Macroalgal Species ◽  
Prorocentrum Lima ◽  
Benthic Cyanobacteria ◽  
Lower Abundance ◽  
Benthic Dinoflagellates ◽  
First Time

Ostreopsis spp. has been reported for the first time from the Egyptian Mediterranean waters. Macroalgal samples were collected monthly between June 2005 and December 2007, from the rocks at Abu Qir, from less than 1.5 m depth, and their associated microalgae examined. Populations of two Ostreopsis morphotypes were found to occur in this location, east of Alexandria, viz., O. cf ovata Fukuyo and Ostreopsis morph1. The Ostreopsis spp. was abundant and dominant during the summer. They were more abundant as epiphytes of the brown algae Padina sp. and Sargassum sp., less abundant on the red algae Corallina sp., Jania sp., Laurencia sp. and even less so on the green algae Ulva spp. Ostreopsis cf. ovata was also identified during the summer months on the same macroalgal species, although in a much lower abundance. Ostreopsis spp. alternated in dominance with the benthic cyanobacteria Oscillatoria spp. and the diatom Licmophora sp. Other benthic dinoflagellates recorded at low abundance included Amphidinium carterae, Gymnodinium sp. and Prorocentrum lima.

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