Stock assessment of the Indian oil-sardinella (Sardinella longiceps) off the West Coast of India

The Indian oil-sardinella (Sardinella longiceps Val .) has traditionally played a critical role in the marine fishery economics of India, and in particular in the State of Kerala. It's production on the west coast of India exhibits large fluctuations over the years, though it continues to be commercially the most important and abundant pelagic resource (Table 1). These fluctuations have attracted the attention of many research workers. As early as 1910 Hornell attributed them to changes in diatom production or food availability to the fry and the prevalence of favourable hydrological conditions. Kesteven (1967) was of the view that the fluctuations are related to shifts in the migratory path of the fish, causing variations in the accessibility of the stocks to fishing due to the limited range of the fishing operations

Demersal Fish Assemblages of the Southwest Coast of India

Demersal surveys from the southwest coast of India were analyzed to determine the general pattern of distribution of demersal species assemblages in the area. Season¬ality is pronounced, indicating three major periods, pre-monsoon, monsoon and post-monsoon. Each of the periods is characterized by different oceanographic circulation patterns that mainly determine the pattern of distribution of species assemblages. Spatial analysis confirmed that the Wadge Bank has the highest po¬tential for producing good quality fish. Region-wise analysis of data indicated that maximum effort and highest landings are from the known grounds along the south¬west coast, although certain northern areas were also found to be fairly productiv

Marine Fisheries along the Southwest Coast of India

Marine fisheries production in India has increased from 0.5 million t in 1950 to 2.47 million t in 1997. The gross value of fisheries landings in India was US$2.37 billion in 1997. The contribution of fisheries to the Gross Domestic Product (GDP) has risen from 0.7% in 1980 - 81 to 1.2% in 1994 - 95. The contribution to agricultural GDP has risen from 1.9% to 4%. Fisheries production also plays a critical role in food security and livelihood in rural area

Trophic Model of the Coastal Fisheries Ecosystem of the Southwest Coast of India

The Ecopath approach and software were used to construct a trophic model of the coastal fisheries ecosystem of the southwest (SW) coast of India. The model consisted of 11 ecological groups and used estimated landings from all areas along the southwest coast (based on the sample surveys conducted by Coastal Marine Fisheries Research Institute for the years 1994, 1995 and 1996). The trophic model suggests high catch levels, particularly for the large and medium predators, demersal feeders and detritivores. The biomass estimates in the trophic model were comparable to the biomass estimates from trawl surveys based on the swept area method for the southwest coast

Case report on anti-tuberculosis drug-induced hepatitis and pancreatitis

Tuberculosis (TB) is a widespread infectious disease primarily impacting the lungs but with potential effects on various organs, such as bones, kidneys, and intestines. This case underscores a rare yet serious complication associated with anti-TB drug (ATD) treatment-the development of drug-induced acute pancreatitis. In this instance, a 65-year-old male undergoing ATD therapy exhibited symptoms including fever, vomiting, and fatigue. Despite receiving medical intervention, including intravenous antibiotics and hepatoprotective drugs, the patient's condition progressively worsened, ultimately resulting in a fatal outcome. This case emphasizes the crucial significance of early identification and effective management of such complications, highlighting the necessity for vigilant monitoring and regular assessment of liver function tests throughout ATD treatment

Tidal waves cause damages to coastal villages in Kerala

The article reports on the damages caused by giant tidal waves to coastal villages between Aarattupuzha (Alleppey District) in the south and Nattika (Trichur District) in the north for a distance of about 150 km along the Kerala coast. The giant tidal waves struck hard against the shore and rolled over into the low lying areas filling the sea water in the huts, wells, paddy fields etc. The damages were the minimum where ever the sea walls were present. But such calamities are unpredictable, hence the practical solution to such sudden natural calamities is to protect the coast line by constructing sea wall wherever the same is not present

An Appraisal of the Marine Fisheries of Karnataka and Goa

Karnataka, on the West coast, plays an important role in the fisheries development of India and has a prominent place in the country's fisheries map, It has a shelf area of 25000 Sq. Km. and a coastline of 270 Km, about 1/22 of the country's coastline. The State's contribution to the total marine fish production in the country is of the order of ^.0%. The State has two coastal districts, namely Dakshin Kannada and Uttar Kannada. The lengths of coastline of both the districts are almost the same. Many rivers such as the Nethravathi, the Saravathi and the Kali flow into the Arabian sea and render the inshore area rich in nutrients

Studies on Composite Extrudable Propellant with varied Burning Rate Pressure Index 'n'

This paper discusses the development of composite propellantextrusion technique and the study of burning rate pressure indices nwith respect to compositional variations. The n is found to vary from0.35 to plateau and plateau to mesa by suitable compositionalmodifications. Compositional influence on burning rate with specificreference to plateau and mesaburning additives is described. Detailsof the process parameters like fluidity of the slurry, extrusion pressure,extrusion rate and die-swell are presented. This propellant is based onISRO-CTPB binder using ISRO-AP as oxidizer. Ammonium perchlorate (AP) particle size variation and inclusion of additives likePVC, lead stearate, ammonium sulphate, lithium fluoride etc. are foundto influence the burning rate pressure index n