User interface design and development: the role of open source systems

Open Source movement has tremendously influenced Information industry, in particular the Digital Library Environment where the Information Systems and services are inevitable. This has helped the Library and Information Centers in developing User Interface to render web based services to the patrons. Wherever the network infrastructure and the target users are in place, the design and development of IR user interface using Open Source system for a specific application is very much possible. This paper highlights the role of Open Source Systems in detail and explains a prototype IR User Interface which was developed in-house at Indira Gandhi Centre for Atomic Research, Kalpakkam

Towards an Institutional Knowledge Repository (IKR) at IGCAR

The collective acquired information of an organization is called the ‘institutional knowledge’. The centralized Knowledge Repository uses standard taxonomies to consolidate information into one place allowing knowledge to be searched and retrieved with maximum efficiency and accuracy. Many organizations have realized the value of institutional knowledge and already initiated knowledge management systems that collect, store, redistribute, utilize and ultimately leverage the institutional knowledge for the benefit of the organization. All the organizations, in particular the R&D institutions like IGCAR need to build knowledge repository on its specific areas of interest. Once created, the IKR will act as a vehicle for knowledge dissemination, sharing and transfer. This paper gives a comprehensive view on building IKR at IGCAR

Fluctuations in the mackerel catches at Cochin

The heavy catches of mackerel were observed during 21st and 28th September. 1982 ,at the Fisheries Harbour, Cochin,by purse-seiners, and since these are quite unprecedented in the recent past, observations made on the biology of the fish and its fishery are presented. The overall size-range of the fish during the month was 153-276 mm and the modal sizes varied between 180 and 250 mm suggesting that the fishery was supported mainly by 1-year and 2-years-old individuals. A majority of fish (58%) were in spent condition followed by immature, spent-recovering and developing individuals. The 92% of the bumper catch of 21st September comprised of spent fish followed by spent-recovering individuals of 2-years-old. Size ranges and dominant modal sizes of mackerel in the purse seine catches during September were compared. The high catch rates, on some these days in September indicates that the mackerel shoals available in the inshore waters were not adequately exploited before the introduction of purse seiners in the area.The comparison of results of the monthly mackerel landings and temperature and salinity values at different centres by various authors reveals that certain optimal levels of temperature and salinity is suitable for the mackerel fishery

Stranding of Sei whale Balaenoptera borealis (Lesson) at Jaffarabad coast.

Balaenoptera borealis (Lesson) was stranded at Jaffrabad on the third week of Sep. 03. The carcass was highly decomposed. As no injury was noticed , it can be presumed that mortality might have occurred due to natural causes in the mid sea, after which it was washed ashore

Hydrographic features off northeast coast and Andaman - Nicobar Islands in relation to demersal finfish resources

Temperature varied from 17.6 to 28.5°C, salinity values from 32.12 to 35.21 x 10"" and dissolved oxygen from 0.8 to 4.41 ml/1. No identifiable relationship could be established between these three parameters and the total fish abundance, probably because the catch was made up of many species having different requirements. Higher abundance of trawl catches was from January to May when bottom water temperature was relatively low. The highest level of abundance of 2764 kg/hr in February 1989 was recorded when the parameters were 26°C, 33.6 x 10" and 2.71 ml/1; and the lowest level of 43.2 kg/hr in July 1988 was when the parameters were 25.3°C, 34.48 x 10'^ and 1.6 ml/1

Demersal finfish resources of Gujarat

The marine fishery of Gujarat is by and large sustained by the operation of three major gears, viz., trawls, gill nets and do1 nets. Demersal finfish resources have played a major role in shaping the fishery of the state ever since the inception of commercial fishery, especially by trawlers about four and a half decades ago

Bumper landings of Arius dussumieri at Nawabundar.

Marine catfish production showed a continuously declining trend all along the Indian coast, heavy landings of A. dussumieri has been recorded at Nawabundar landing centre. Black tip sea catfish locally known as "Khaga" forms an important seasonal fishery in the Dol nets operated at Nawabundar, contributing 5 to 16% of total fish catch with the annual Estimated catch (tonnes) & Effort of A. dussumieri landed at Nawabundar

Marine Fish Calendar. 4 Cochin

The article provides details about the marine fish landing at Cochin fisheries harbour, Kerala during the period 1981-1985. It was found that the majority of the landing was contributed by purse seine followed by trawlers, drift gill nets, boat seines, hooks and lines etc

Incursion of brown algae and sargassum fishes into the Cochin backwaters

An incursion of sea weeds like brown algae and reef fishes like Sargassum fishes was observed in the Cochin backwaters on 6-12-1991. It appears that the habitat disturbance caused by the human interference along the southern part of the west coast brought the reef fishes along with the marine algae into the backwaters being assisted by the strong northerly current prevailing during the season

Demersal finfish resources in certain areas of the EEZ of southwest and southeast coast of India

Bottom trawling data from the cruises of the FORV Sagar Sampada undertaken during 1989-91 in the middle and outer shelf waters of the southern EEZ, at 97 stations within a depth zone of 30 to 130 m, showed catch rates of 3 to 14000 kg/hr. The highest rate of 14 t/hr was recorded at lat. 1 l°N/75° 23.4' E, followed by 5.5t/hr at 8°54'N N/76° 19.6' E off the southwest coast, whereas the abundance was comparatively less off the southeast coast. The average catch rate per hour off the southwest was 724 kg and off the southeast it was 405 kg. The important demersal finfishes available were: threadfin breams (72%), major perches (5%), rays, carangids and goatfish (4% each) off the southwest; and carangids (29%), major perches (23%), rays (19%), threadfin breams (10%) and goatfish (5%) off the southeast. The depth belt of 41-80 m off both the coasts was found to be more productive than deeper regions. The results indicate that the potential yield from the depth zone of 50-100 m off the southwest coast is 2.6 x 10 tonne, which is much higher than the previous estimates of up to 1.5 x 10 tonne. The single largest group (80%) in this zone is threadfin breams, followed by bull's eye, lizard fishes and flatheads