Antibacterial properties of some marine algae of Sri Lanka

The authors report on the antibacterial activity of 11 algae, green, brown and red. Prepared extracts were tested, and varying degrees of activity were exhibited. Most activity was shown by Ulva fasciata, Sargassum cervicone and Halimeda macroloba

Use of length-weight relationship in grading processed beche-de-mer

Holothurians, belonging to the species Holothuria scabra, have been collected by diver-fishermen and processed for export. There is an active fishery for these animals in Palk Bay and Gulf of Mannar, off the north-western coast of Sri Lanka. The absence of standardized method of grading has led to unwarranted variation in sale prices and sometimes in loss of foreign exchange in Sri Lanka. In this paper an attempt is made to present a method to grade processed beche-de-mer by using the lenght-weight relationship

Sirahu Valai: a passive fishing gear in Ceylon

There are many types of passive fishing gear in use in the estuarine waters and lagoons in Ceylon such as the stake seine net or Kattudel, the tat trap or Jalcottu and the wing net or Sirahu valai. Of these Siraku valai is very popular in the shallow and near shore areas of the sea in north Ceylon. Sirahu valai is popular since it is relatively more economical, less time consuming and more efficient than other forms of fishing gear in shallow waters. More over the fishermen do not have to remain in the fishing grounds while his gear is fishing. Pearson (1923) described this gear as a stake net having a complicated arrangement. Sirahu valai is also referred to as Siraku valai or Kurukku valai

Beche-de-mer trade : global perspectives

The interaction between the producers and consumers of beche-de-mer through the traders all over the world is discussed on species composition of the trade; price levels in the major markets; consumer preferences; supply situations; quality variations; management measures towards better processing and quaUty control. Place of this fishery in the general fish trade and contraints in marketing in selected countries are also discussed

A small-scale unit to process sand-fish Holothuria (metriatyla) scabra

This paper deals with the design, details of a small-scale unit to process Holothuria (Metriatyla) scabra in a fishing village to improve the quality and storage life of the product

Not Available

Not AvailableThe interaction between the producers and consumers of beche-de-mer through the traders all over the world is discussed on species composition of the trade; price levels in the major markets; consumer preferences; supply situations; quality variations; management measures towards better processing and quaUty control. Place of this fishery in the general fish trade and contraints in marketing in selected countries are also discussed.Not Availabl

Not Available

Not AvailableThis paper deals with the design, details of a small-scale unit to process Holothuria (Metriatyla) scabra in a fishing village to improve the quality and storage life of the product.Not Availabl