Plastic debris at the micro-, and potentially also the nano-scale, are widespread in the environment. Microplastics have accumulated in oceans and sediments worldwide in recent years, with maximum concentrations reaching 100 000 particles m(3). Due to their small size, microplastics may be ingested by low trophic fauna, with uncertain consequences for the health of the organism. This review foc...

This well-known book has been thoroughly revised and brought up-to-date; it is now in its eighth edition. The writers have succeeded in producing a manual which is not merely a collection of facts but is a wellbalanced and readable book in which the student and practitioner will find all that is of importance in the science and practice of bacteriology. One says bacteriology, because, although ...

Interest in the intestinal parasitic protozoa that comprise the genus Giardia has increased considerably in the last quarter century. One reason for this has been the gradual recognition that Giardia organisms in humans are potentially pathogenic: while most frequently they occur in the absence of symptoms, they are sometimes capable of causing a mild, self-limiting intestinal syndrome, and eve...

Alcoholic extracts of 48 identified species of marine flora were screened for a wide range of biological activities. Of these, 3 extracts showed diuretic activity while 2 extracts showed hypotensive effect.

In recent years scientific literature has seen an increase in publications describing new transgenic applications. Although technically-sound, these promising developments might not necessarily translate into products available to the consumer. This article highlights the impact of external factors on the commercial viability of Genetically Modified (GM) animals in the pharmaceutical and food s...

John Lucas introduces aquaculture, the cultivation of aquatic organisms and its role in human food production for a sustainable future.

There are few instances where a knowledge of the thermal physiology, habitats and lifestyles of a group of closely related species can be mapped onto a well-supported phylogeny and a detailed climatic history. The unique fish fauna of the Southern Ocean, dominated by a single group of fish whose phylogeny is known from traditional and molecular techniques, provides one such opportunity. Further...