نتایج جستجو برای: aquaria
تعداد نتایج: 626 فیلتر نتایج به سال:
Abstract The temperate soft coral Dendronephthya australis has been listed as Endangered in NSW, Australia, owing to its restricted geographic range, rapidly declining populations, and a number of escalating threats. Research assess practical methods for aquarium cultivation D. rehabilitation wild populations is considered high priority. Previous attempts at restoration by transplanting fragmen...
background: in natural waters and/or aquaculture facilities, fish are often exposed to chromium waste and demonstrate cumulative deleterious effects. to our knowledge, there are no studies concerning the effects of trivalent cr on c. carpio hematology. this study presents hematological and some biochemical parameters of common carp, cyprinus carpio, affected by sublethal concentration of trival...
Recovery of degraded reefs is dependent on the settlement of coral larvae into habitats typically dominated by benthic algae, so that benthic algae may play pivotal roles in coral settlement and reef recovery. Here we demonstrate that waterborne influences of macroalgae could affect coral settlement before larvae contact reef substrata and that such effects vary between macroalgae. We tested fo...
A recent shift in the pattern of commercial harvest in the Keppel Island region of the southern inshore Great Barrier Reef raises concern about the depletion of a number of relatively rare restricted range taxa. The shift appears to be driven by demand from the United States (US) for corals for domestic aquaria. Data from the annual status reports from the Queensland Coral Fishery were compared...
A species of sea anemone found in shallow water areas of southern Kaneohe Bay, Oahu, but never before reported from Hawaii, is described. It is identified as Actiniogeton sesere, previously recorded and described from the Torres Straits (Haddon and Shackleton 1893). HAWAII'S COELENTERATE FAUNA is poorly known and is in need of serious study. As I have discussed elsewhere (Dunn 1974), the single...
Coral-associated gobies are highly specialized reef fishes with high host-coral fidelity. Flexibility in habitat choice, however, is important to compensate for potential habitat alteration or loss, but detailed information about the postsettlement movement behavior of such gobies is lacking. We examined movement patterns in Gobiodon histrio, both under natural conditions and during subsequent ...
Aim: The objective of this study was to determine the prevalence of snail’s intermediate host affected with larval stages of different trematodes. Materials and Methods: Snails were collected from ponds, tanks, ditches, canals and crop fields in and around Ranchi. They were transported to the laboratory in water containers and maintained in small aquaria, supplemented with natural food stuff. T...
the objective of this study was to compare growth performance and feed conversion ratios of rainbow trout (oncorhynchus mykiss) and brook trout (salvelinus fontinalis) juveniles in monoculture and duo-culture in freshwater and seawater under aquarium conditions. the fish were about 2-months old hatchery-reared brook and rainbow trout with initial weights of 0.934±0.033 (n=360) and 1.014±0.019 (...
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