Seasonal variations in the water quality, diversity and population ecology of intertidal macrofauna at an industrially influenced coast.

Present communication reports the physico-chemical and biological quality of seawater and status of benthos of a highly industrialized shore of the north-western coastline of India. The coastal area considered for the present study, encircled by a variety of industries, was divided into two sampling sites and monitored for two consecutive years. Results of the water quality suggest that the obtained values of the physical and chemical parameters of seawater were comparable with data reported earlier. However, data obtained in the biological parameters of the seawater showed a declining trend. Results of the intertidal macrofaunal diversity studies revealed that the muddy upper littoral zones were represented by few species of coelenterata, porifera, arthropoda and mollusca. In the rocky-muddy middle littoral zones, gastropods, stars fishes, corallites, crabs, polychetes and tubeworms were present, whereas, predominantly rocky lower littoral zones were comparatively rich in macrofaunal diversity with small patches of coral colonies. However, when the results obtained in the present study was compared with that of earlier reported data, it was clear that the macrofaunal diversity indeed declined considerably over the years. This may be due to habitat destruction and habitat alteration in the coastline caused by increased anthropogenic activities in the area. Seasonal variations in the population density and abundance were observed in most of the faunal groups except in sessile corals and sponges. This may be due to local migration of the faunal groups towards deeper regions of the Gulf, as supported by the analysis of similarity, to avoid influx of freshwater during monsoon, and high temperature during summer and post monsoon seasons. The overall assessment of different parameters of this study revealed that though the physico- chemical characteristics of the seawater did not varied much from the earlier reported status, the biological characteristics of the seawater and intertidal zone was affected possibly by a high degree of anthropogenic pressure.

Adult intraosseous infusion in accident and emergency departments in the UK.

OBJECTIVE: A postal survey was conducted to gain an overview of current opinion and practice relating to intraosseous infusion in adult resuscitation in accident and emergency (A&E) departments in the UK and to use the results to generate debate in light of published and personal experience. METHODS: Questionnaires were sent to 559 departments listed in the 1996 British Association for Accident and Emergency Medicine directory. Three hundred and thirty two (59%) were returned and the 157 (28%) consultant led departments with more than 30,000 new patient attendances per year were examined. RESULTS: Seventy four per cent of respondents were aware that intraosseous infusion could be used in adult resuscitation, while only seven per cent used the technique. All (100%) were involved with training their medical staff and 11% said they taught the technique for use in adults. The majority of respondents were accredited in at least one of the adult resuscitation training courses. CONCLUSIONS: Numerous references appear in the literature relating to intraosseous infusion in adult resuscitation and represent a wealth of experience. The technique is taught and used in our department in contrast with the results of this survey, which demonstrate that it is infrequently taught and used in UK A&E departments. The more widespread teaching of this technique for adult use is recommended.