UNLABELLED The major photopigment of the cyanobacterium Acaryochloris marina is chlorophyll d, while its direct biosynthetic precursor, chlorophyll a, is also present in the cell. These pigments, along with the majority of chlorophylls utilized by oxygenic phototrophs, carry an ethyl group at the C-8 position of the molecule, having undergone reduction of a vinyl group during biosynthesis. Two ...

Most of Singapore’s coastline has been modified by coastal development with variable influences on marine biodiversity. Marinas are typically designed as a semienclosed environment with a complex mix of structures that provide ecological niches throughout the water body. Water flow is inevitably reduced with a possible decline of water quality. This investigation was conducted to determine how ...

Marinacılık sektörü, deniz turizmi çerçevesinde güncel marina yatırımlarıyla sürekli gelişme gösteren ve büyüyen bir hizmet sektörüdür. Marinaların, günümüzde gerek sayılarının artması gerekse bağlama kapasitelerinde görülen artış sebebiyle giderek artan rekabet ortamı içerisinde müşterilerine vermeye çalıştığı görülmektedir. Günümüz müşterilerinin ise konaklayacakları marinaları tercih ederken...

The antibacterial activity of the leaves and bark of mangrove plants, Avicennia marina, A. officinalis, Bruguiera sexangula, Exoecaria agallocha, Lumnitzera racemosa, and Rhizophora apiculata was evaluated against antibiotic resistant pathogenic bacteria, Staphylococcus aureus and Proteus sp. Soxhlet extracts of petroleum ether, ethyl acetate, ethanol and water were prepared and evaluated the a...

Respiration and food assimilation of two estuarine bacterivorous nematodes, the rhabditid Pellioditis marina and the monhysterid Diplolaimelloides meyli, were measured at a range of temperatures, salinities, and food densities. The aim of this study was to identify the fundamental niche of both species in their natural habitat, and to investigate the relative importance of food and abiotic fact...