The effectiveness of three immunostimulants viz., vitamin C, levamisole and chitin on the prophenoloxidase (proPO) activity of haemolymph, response to challenge studies and growth performance of juveniles of the tiger shrimp Penaeus monodon (Fabricius) was assessed by oral administration of these immunostimulants to the shrimps. The levels of incorporation of these immunostimulants in shrimp fe...

—Fisheries observers have documented interactions between sea turtles in the family Cheloniidae and the Atlantic sea scallop Placopecten magellanicus fishery. Sea turtle injuries resulting from interactions with scallop dredges are being mitigated through shifts in fishing effort and modifications to fishing gear. The standard New Bedford dredge can trap objects and crush them as they pass betw...

The role of density-dependent processes in sea turtle populations remains largely unknown. This study quantified density-dependent and density-independent processes that underlie hatchling production in the green turtle nesting population at Tortuguero, Costa Rica, and estimated current mean hatchling output and potential carrying capacity of Tortuguero beach for hatchlings and nesting females....

Balssaxius habereri (Balss, 1903) has been newly reported in Korean waters. This species was previously known from the Pacific coast of northern Japan, Korea Strait, Yellow Sea, and Japanese coast of the East Sea. Specimens were collected from western Jeju Island using otter trawls at depths of 65–85 m. Regarding Korean axiid shrimps, a single species, Boasaxius princeps (Boas, 1880), previousl...

analyzed (female curved carapace length, clutch size, emergence success, incubation period, hatchling production, observed clutch frequency, and observed breeding frequency). Although emergence success is lower in hybrids, hatchling production per clutch, as well as clutch frequency and breeding frequency, is similar among the three groups. These results show that hybrids may persist in this re...

vibrio species are the major seafood-borne bacteria that are frequently associated with the consumption of contaminated sea food. a total of 113 samples including 58 fish and 55 shrimps were studied for the possible contamination with vibrio species. a biochemical protocol was applied for the identification of the vibrio isolates and polymerase chain reaction (pcr) was carried out to confirm th...

Except for the brief period of egg-laying, five species of turtle are strictly marine: namely, the green turtle (Chelonia mydas), the loggerhead turtle (Caretta carettd), Ridley's turtle (Lepidochelys olivacea), the hawksbill turtle (L. imbricatd) and the leatherback turtle (Dermochelys coriacea). Reptiles in the sea, like marine fish and marine birds, have a high intake of electrolytes; yet, a...