Studies on lantern fish (Benthosema pterotum) 2. Nutritional evaluation

Various methods for processing and utilization of lantern fish (Benthosema pterotum) are reported. Nutritional evaluation of fish meal and fish hydrolysate from lantern fish has been carried out. Growth rate and PER of lantern fish meal are similar and better than that of the reference protein, casein. Lantern fish meal can therefore be extensively used for the formulation of poultry, fish and other animal feeds as a good protein supplement with beneficial effects.

Preliminary studies on the holding of live mussels after harvest

Green mussel (Perna viridis) were harvested to study the applicability of chilling to keep the mussels alive for a longer period of time and to review existing methods of packaging and transport. Data obtained from preliminary studies indicated the effectiveness of keeping mussels alive as long as 4 days with minimal mortality rates.

A method of immersion of panels for ecological studies on marine fouling and boring organisms

The importance of studies on the biology of marine foulers and borers needs no emphasis since they cause damage to submerged wooden structures resulting in considerable economic loss. In order to study their occurrence, settlement and to assess the rate of destruction to timber, several immersion techniques using iron racks, cages and rafts have been adopted. On the east and west coasts of India, at the Marine Centres of Forest Research Institute (Waltair, Madras, Cohin and Bombay) investigations have so far been carried out employing the first two methods.

Resource studies in relation to the development of African inland fisheries

The paper discusses relevance of studies on the resources to the decisions that have taken for the development of management of African inland fisheries. Particular emphasis is given to outlining the types of advice that can be provided by the biologist, without which the decisions taken can easily be wrong. The primary information concerns the magnitude of the potential yield from the resource, and how it compares with present catches. From this the possibilities for development can be assessed, or the need for management be determined. Methods of determining the potential, and the data used in their application are briefly reviewed. Because scientific advice on the resource is desirable as early as possible in the development of a fishery, simple but rather rough methods may be equally, if not more, valuable than more precise but more difficult methods.