scholarly journals Natural Coral as a Biomaterial Revisited

2021 ◽  
Vol 13 (6) ◽  
pp. 667-686
Author(s):  
LH Yahia
Keyword(s):  
2017 ◽  
Vol 5 (2) ◽  
pp. 254
Author(s):  
Alex D. Kambey ◽  
Anneke V. Lohoo

Efforts to maintain and prepare the fish stock availability, coastal resources management in Malalayang Dua waters was carried out through coral reef rehabilitation in public fisheries zone, artificial reef “BambooReef” placement as an effort of innovation creation to prepare an alternative artificial reef model. In 1 -2 years, new habitat is expected to be present, could increase the fish biomass, and create the area to be able to supply reef fish stock in Malalayang Dua waters and its surroundings.The artificial reef “bambooReef” was laid around the natural coral reefs at the depth of 5 to 7 m. Data collected were presence and attraction of the coral fish (no. species and density).Results showed that there were 15 species found around the “BambooReef”, with the highest recorded as mayor species group (13 species), followed by indicator species, and 1 target species. Total number was 137 individuals and the density was 8.56 ind./m2 or 85.625 ind/ha.  The fifteen species of coral fish did not, in general, belong to optimum size for fishing.  Nevertheless, this study reflects that the artificial reef placement has created new habitat for the coral fish. Keywords: Artificial reef, bambooreef, bamboo, demersal.   AbstrakUpaya untuk menjaga, memelihara dan sekaligus mempersiapkan  penyediaan stok ikan di perairan, dibuatkan  pengelolaan sumberdaya wilayah pesisir di Kelurahan  Malalayang Dua dengan konsep pengelolaan melalui perbaikan  kondisi terumbu karang zona perikanan masyarakat, dengan konsep rehabilitasi tempat hidup dan berkembang ikan yaitu peletakan terumbu buatan dari bahan dasar bambu “BambuReef”, sebagai upaya menciptakan inovasi bahkan menciptakan model terumbu buatan alternatif (baru).  Diharapkan dalam waktu dalam waktu 1-2 Tahun akan tercipta habitat baru, meningkatkan biomassa ikan, menciptakan daerah yang dapat menyediakan stock ikan karang di perairan pantai Kelurahan Malalayang Dua dan sekitarnya.Terumbu buatan “bambooReef” diletakkan pada daerah sekitar  terumbu karang alami di perairan pesisir Malalayang Dua Kota Manado, pada kedalaman 5 s/d 7 meter. Data yang diperoleh dari peletakkan/penerapan terumbu buatan “BambooReef” adalah kehadiran dan ketertarikan jenis ikan karang (jumlah jenis dan kepadatannya),Hasil penelitian menunjukkan bahwa ada 15 spesies yang ditemukan di sekitar terumbu buatan “BambooReef” dimana tertinggi termasuk pada kelompok spesies mayor (13 jenis), kemudian diikuti spesies indikator berjumlah 1 jenis, dan spesies target 1 jenis, dengan jumlah 137 individu, serta kepadatan 8,56 indv/m2 atau sebesar  85.625 individu per hektar.   15 jenis ikan karang yang ditemukan umumnya belum dalam ukuran optimum untuk ditangkap.  Namun demikian hasil penelitian ini menunjukkan bahwa penempatan  terumbu buatan telah memberikan habitat baru bagi ikan karang.Kata kunci: Terumbu buatan, bambooreef, bambu, demersal.  


Author(s):  
Herman S. Mansur ◽  
Alexandra A.P. Mansur ◽  
Marivalda Pereira

2013 ◽  
Vol 20 (4) ◽  
pp. 17-23
Author(s):  
N. S Sergeeva ◽  
I. K Sviridova ◽  
G. A Frank ◽  
V. A Kirsanova ◽  
S. A Akhmedova ◽  
...  

Results of in vitro and in vivo medico5biological study of mineral-polymer composites (MPC) based on high molecular polylactoglycolide and natural A. cervicornis coral skeleton with vari5 ous dispersity (600 µm) as materials for bone defects substitution are presented. On the model of human fibroblasts in vitro it was shown that MPC were not toxic and possessed satisfactory matrix (for cells) properties. The optimum for composite size of natural coral granules made up 200-600 µm. MPC biocompatibility was shown in subcutaneous test in mice. However comparatively slow subcutaneous substitution of both polylactoglycolide and MPC on its basis by connective tissue. Study of MPC and its components’ osteoplastic potential showed that in the zone of fenestral tibia defect in rats polylactoglycolide was substituted by connective tissue. Periosteal osteogenesis that in MPC was supplemented by enchondral osteogenesis was observed around the particles of natural coral skeleton.


1994 ◽  
Vol 5 (9-10) ◽  
pp. 688-691 ◽  
Author(s):  
C. Voigt ◽  
C. Merle ◽  
C. M�ller-Mai ◽  
U. Gross

2007 ◽  
Vol 58 (8) ◽  
pp. 720 ◽  
Author(s):  
Jennifer L. DeBose ◽  
Gabrielle A. Nevitt

Dimethylsulfoniopropionate (DMSP) is a biogenic chemical produced by marine algae that is associated with areas of high primary and secondary productivity in the ocean. In laboratory experiments, DMSP has been shown to be an effective feeding attractant for a variety of fresh and saltwater fishes, suggesting that it might also function as a foraging cue in the natural environment. Here we explore whether free-roaming pelagic fishes associate with periodic elevations of DMSP in their natural foraging habitat. Working in the vicinity of the coral reefs of the Flower Garden Banks in the Gulf of Mexico, we found that daily changes in the number of pelagic jack fishes (Carangidae) were significantly correlated with natural changes in concentrations of DMSP in the water column. These results provide the first evidence of a correlation between variation in the number of pelagic fishes and a specific habitat-associated chemical cue in the ocean.


1996 ◽  
Vol 7 (8) ◽  
pp. 479-488 ◽  
Author(s):  
C. Müller-Mai ◽  
C. Voigt ◽  
S. R. de Almeida Reis ◽  
H. Herbst ◽  
U. M. Gross

2015 ◽  
Vol 26 (3) ◽  
pp. 914-917 ◽  
Author(s):  
Ruowei Su ◽  
Lai Gui ◽  
Jianfeng Liu ◽  
Feng Niu ◽  
Ying Chen ◽  
...  
Keyword(s):  

2011 ◽  
Vol 75 (5) ◽  
pp. 1346-1356 ◽  
Author(s):  
Patric Lindahl ◽  
Ryuji Asami ◽  
Yasufumi Iryu ◽  
Paul Worsfold ◽  
Miranda Keith-Roach ◽  
...  

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