Fish transplantation as an ecological tool in boosting fish production: Tiga case study

The paper discusses the status of the Tiga Reservoir Fishery pre-and Clupeid transplantation. This was achieved by examining the species diversity, abundance and distribution with mitigating factors. It concludes with a verdict on the achievement of the transplantation exercise

First Record of the Ragged-tooth Shark, Odontaspis ferox, off the U.S. Atlantic Coast

On 11 September 1994, a large shark was captured and later identified as the ragged-tooth shark, Odontaspis ferox (Risso). The shark was captured during routine bottom trawl survey operations onboard the NOAA R/V Albatross IV, approximately 25 n.mi. south-southeast of Cape Hatteras, N.C. (lat. 34° 51' N, long. 75° 26' W) with a “36 Yankee” bottom trawl towed at 3.5 knots. Average water depth at the time of capture was 173 m, bottom temperature was 17.8°C, and salinity was 36.41‰. Total length (cm), fork length (cm), weight (kg), and sex were recorded, the specimen was tagged, photographed, and returned live to t

Selection of freshwater pearl mussel species for mantle transplantation in Bangladesh

Allograft mantle transplantations were studied in six species of freshwater mussels~ Lamellidens marginalis, L. corrianus~ L. jenkinsianus_, L. phenchooganjensis~ Parreysia corrugata and P. favidens by transplanting foreign mantle tissue into the mantle tissue of a host mussel. After three months of rearing, maximum survivability and pearl formation were observed in L. marginalis and L. jenkinsianus followed by L. corrianus and L. phenchooganjensis. Very poor results were observed in case of Parreysia corrugata and P. favidens. In addition to the natural pearl producing capacity of individual species, survivability and pearl production were related to the size of the mussel species. L. marginalis has been identified as the best species for mantle transplantation in Bangladesh.