STUDIES ON THE BIOLOGY OF THE WEDGE CLAM DONAX INCARNATUS (GMELIN) FROM THE MALIPPURAM BEACH OF KERALA

The present investigations have considerably enhanced the existing knowledge on the biology and distribution/availability pattern of D.incarnatus in the Malippuram region. The species occurs in good concentration during October - March/April, and disappears from the area during late premonsoon and monsoon months. Recolonising the area in September, it grows fast in the subsequent months. The life span of the species is estimated to be about an year. Studies on the reproductive biology of the species have revealed that there are two spawning peaks, the major peak in February - March and minor peak, in December. The salinity regime of the area influences the reproductive activity. These observations form the original contribution in the thesis. The information on variation in water content, protein,glycogen and lipid levels in relation to reproductive cycle has helped to a better understanding of the gametogenic activity and spawning of the species. Similarly, the findings on salinity tolerance and filtration rate have shown that small sized clams exhibit greater tolerance range than larger clams, and grow at a faster rate with active metabolism. It is hoped that these information would considerably add to the present knowledge of the basic facts which are relevant to the improvement and management of the clam fishery of this region.

Mineralogical And Sedimentological Studies Of Innershelf And Beach Sediments Along The Coast Between Paravur And Kovalam, South Kerala, India

Continental shelf is of particular significance in marine geology , because it links the two basically different structural zones in the earth's crust; the continents and ocean basins. The shelf area has much wider importance in many fields of activity such as scientific, economic, social, political and strategic. The pace of development has ultimately put pressure on mankind to look for exploitable resources and accessibility to the continental shelf area and beyond. Added to the above, the developmental activities in the coastal area would readily and directly influence the innershelf sediments. This situation demands a thorough geological knowledge of the continental shelf area. Moreover, a successful management of the continental shelf zone requires an optimum data base on the physico-chemical nature of the shelf sediments. Although sedimentological studies were carried out along the western continental shelf of India, a well documented systematic study of the inner shelf off Trivandrum coast is still found to be lacking. Considering the physiographic settings and the vicinity of two renowned placer deposits at Chavara and Manavalakurichi, such a sedimetological inventory has become all the more vital. In view of the above, a research programme has been drawn up to account the salient sedimentological and mineralogical aspects of the innershelf and beach sediments between Paravur and Kovalam, Trivandrum district, Kerala (latitudes 8° 7'00" to 8° 47'45" and longitudes 76°43'00" to 77° 40'45"). The findings are presented in six chapters formatted to address the aim of this research.

Análisis del entorno y del mercado para la puesta en marcha del plan de rebranding de un hotel de playa en Panamá: caso Sheraton Bijao Beach Resort

La cadena hotelera colombiana GHL Hoteles Ltda., obtuvo el manejo operacional de un hotel existente en Santa Clara – Panamá, para que de ésta manera soportara un cambio de marca, convirtiéndose así en un Sheraton. Con la ayuda de un gran equipo de trabajo fue posible ésta transición y actualmente se perfeccionan los detalles para cumplir con los estándares dictados y exigidos por la marca. Contando con el soporte de una oficina de mercadeo y ventas ubicada en la ciudad de Panamá, es menester respaldar todos los logros en estrategias de mercadeo y ventas para el éxito y la rentabilidad del negocio.

Aprendre a mirar : les primeres passes. 'Aprender a mirar : los primeros pasos'.

Este recurso ha recibido la mención especial en la séptima edición de los premios Actual

Seguint les passes d'Arlequí. 'Siguiendo los pasos de Arlequín'.

Muestra una serie de elementos plásticos -maquillaje, vestuario, máscara- y de técnicas de trabajo de actores -vocalización, respiración, improvisación- que resultan fundamentales para despertar el interés por el teatro e introducirlo en la escuela. El video toma como hilo conductor la 'Commedia dell'Arte', por el hecho de tratarse de un tipo de teatro muy sencillo y muy tradicional que nunca no ha perdido actualidad.

On the beach.

Utiliza las solapas como elementos de descubrimiento y para informar a los niños pequeños sobre el mundo que les rodea: un erizo de mar, una gaviota, un cangrejo con grandes pinzas y un pez con una divertida cara son algunos de los animales que encontrarán en esta publicación.

Rere les passes del Conqueridor : un itinerari pels Pa??sos Catalans amb Jaume I

Resumen basado en el de la publicaci??n

Les Primeres passes del cristianisme al nord-est de Catalunya: Estat de la qüestió

Recull de tot el coneixement que fins avui ha elaborat la historiografia a partir de les fonts escrites i l’arqueologia sobre els orígens del cristianisme al nord-est de Catalunya, en concret, als antics bisbats de Girona i Empúries, entre els segles IV i VIII

Death on the beach: the recycled utopia of Midnight

The chapter conducts close analysis of the film Midnight (O primeiro dia) in the light of Brazilian history and Brazilian film history

Open solar flux estimates from near-Earth measurements of the interplanetary magnetic field: comparison of the first two perihelion passes of the Ulysses spacecraft

Results from all phases of the orbits of the Ulysses spacecraft have shown that the magnitude of the radial component of the heliospheric field is approximately independent of heliographic latitude. This result allows the use of near- Earth observations to compute the total open flux of the Sun. For example, using satellite observations of the interplanetary magnetic field, the average open solar flux was shown to have risen by 29% between 1963 and 1987 and using the aa geomagnetic index it was found to have doubled during the 20th century. It is therefore important to assess fully the accuracy of the result and to check that it applies to all phases of the solar cycle. The first perihelion pass of the Ulysses spacecraft was close to sunspot minimum, and recent data from the second perihelion pass show that the result also holds at solar maximum. The high level of correlation between the open flux derived from the various methods strongly supports the Ulysses discovery that the radial field component is independent of latitude. We show here that the errors introduced into open solar flux estimates by assuming that the heliospheric field’s radial component is independent of latitude are similar for the two passes and are of order 25% for daily values, falling to 5% for averaging timescales of 27 days or greater. We compare here the results of four methods for estimating the open solar flux with results from the first and second perehelion passes by Ulysses. We find that the errors are lowest (1–5% for averages over the entire perehelion passes lasting near 320 days), for near-Earth methods, based on either interplanetary magnetic field observations or the aa geomagnetic activity index. The corresponding errors for the Solanki et al. (2000) model are of the order of 9–15% and for the PFSS method, based on solar magnetograms, are of the order of 13–47%. The model of Solanki et al. is based on the continuity equation of open flux, and uses the sunspot number to quantify the rate of open flux emergence. It predicts that the average open solar flux has been decreasing since 1987, as Correspondence to: M. Lockwood (m.lockwood@rl.ac.uk) is observed in the variation of all the estimates of the open flux. This decline combines with the solar cycle variation to produce an open flux during the second (sunspot maximum) perihelion pass of Ulysses which is only slightly larger than that during the first (sunspot minimum) perihelion pass.

Beach-foraging behaviour of Forest Ravens Corvus tasmanicus and an Australian Magpie Gymnorhina tibicen at Wilsons Promontory, Victoria

Observations are presented of Forest Ravens Corvus tasmanicus, and an Australian Magpie Gymnorhina tibicen, foraging by gleaning the sand on a beach.