نتایج جستجو برای: saccostrea cucullata
تعداد نتایج: 258 فیلتر نتایج به سال:
The most common coral monitoring methods estimate coral abundance as percent cover, either via in situ observations or derived from images. In recent years, growing interest and effort has focused on colony-based (demographic) data to assess the status of coral populations and communities. In this study, we relied on two separate data sets (photo-derived percent cover estimates, 2002-12, and op...
The stable isotope ratios of carbon (dC) and nitrogen (dN) of the muscle, ctenidia and viscera of the Sydney rock oyster, Saccostrea glomerata, showed the dilution and assimilation of tertiary treated sewage along an estuarine gradient. The enriched N values of oyster ctenidia and viscera from within 50 m of the sewage outfall indicated the use of N-enriched tertiary treated sewage effluent (16...
We review the status of marine shellfish ecosystems formed primarily by bivalves in Australia, including: identifying ecosystem-forming species, assessing their historical and current extent, causes for decline and past and present management. Fourteen species of bivalves were identified as developing complex, three-dimensional reef or bed ecosystems in intertidal and subtidal areas across trop...
Small-bodied cladocerans and cyclopoid copepods are becoming increasingly dominant over large crustacean zooplankton in eutrophic waters where they often coexist with cyanobacterial blooms. However, relatively little is known about their algal diet preferences. We studied grazing selectivity of small crustaceans (the cyclopoid copepods Mesocyclops leuckarti, Thermocyclops oithonoides, Cyclops k...
Three species of mangrove oysters, Crassostrea rhizophorae, C. brasiliana, and C. gasar, have been described along the Atlantic shores of South America and Africa. Because the distribution of these molluscs is of great biological and commercial interest, their taxonomy and distribution deserve further clarification. Therefore, 15 populations were sampled from both continents. Their 16S mitochon...
Studies on the relationship between host species and ectoparasites are limited small oceanic islands such as Philippine archipelago, particularly bat their associated ectoparasites. Prior to our study, only a single fly (Leptocyclopodia simulans), wingless in family Nycteribiidae, was reported Bohol Island located central Philippines. We report additional records of nycteribiid collected from c...
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