Length-weight relationship of some marine fish species in Reunion Island, Indian Ocean

The length-weight relationship of 29 marine fish species form Reunion Island (SW Indian Ocean) belonging to 14 families were computed. Data from 5,340 individuals were used for this purpose. Fish were sampled using different techniques, mainly with rotenone poisoning on coral reef flats, beach seine and handlines on shallow coastal bays, and longline fishing in the nearby open sea.

Empowering natives through autobiographical writing: Lee Maracles Bobbi Lee indian rebel and Leslie Marmon Silkos The turquoise ledge: a memoir

Esta dissertação trata de duas obras autobiográficas escritas por autoras nativas que ganharam reconhecimento na década de 70: Bobbi Lee Indian Rebel (1975), da nativo-canadense Lee Maracle, e The Turquoise Ledge: a Memoir (2010), da nativo-americana Leslie Marmon Silko. A importância destas autoras para a Renascença Nativo-Americana/Canadense é inegável, e cada uma delas contribuiu fazendo uso de estratégias diferentes: enquanto Maracle começou sua carreira com Bobbi Lee Indian Rebel, de cunho autobiográfico, Silko esperou mais de trinta anos para publicar The Turquoise Ledge. A problematização de se ver estas obras pelo olhar estritamente ocidental, ou estritamente nativo, é discutida, assim como o aparentemente inevitável tom político dessas narrativas. Ainda que mais de três décadas separem a publicação das obras selecionadas, perguntas como: Estas obras podem ser consideradas literatura?, Elas têm como principal propósito engrandecer feitos pessoais das autoras?, ou Como essas narrativas contribuem para o empoderamento do povo Nativo? podem nunca chegar a serem respondidas, mas, de fato, incitaram a escrita desta dissertação e nortearam nossa análise

Problems in culturing black tiger shrimp (Penaeus monodon) the semi-intensive way: an Indian experience

This paper details some of the problems encountered in culturing black tiger shrimp (Penaeus monodon) the semi-intensive way in India, which include aquatic macrophytes; invasions by molluscs, jellyfish and frogs; predators; fouling organisms; and others.

High level of hybridisation in three species of Indian major carps

Thirty individuals of each species of Indian major carps, i.e., Catla catla, Cirrhinus cirrhosus (C. mrigala) and Labeo rohita, obtained from a nursery near Mymensingh, Bangladesh were analysed by means of allozyme electrophoresis. Twenty-one loci were studied. Several loci revealed significant deviation from Hardy-Weinberg expectations caused by deficiency of heterozygotes, indicating Wahlund effects due to problems with species identification. Moreover, bimodal distributions of individual heterozygosity within the three putative species indicated hybridisation. This was confirmed using analysis of individual admixture proportions, as individuals misidentified to species and hybrids between species were observed. Furthermore, factorial correspondence analysis to visualize genetic relationships among individuals revealed three distinct groups containing misclassified individuals, along with some intermediate individuals interpreted as hybrids. Ten per cent of all C. catla and L. rohita had been erroneously identified to species, and 40 per cent of all presumptive C. catla were hybrids between C. catla x C. cirrhosus and C. catla x L. rohita. In the case of C. cirrhosus, 37 per cent of the samples were C. cirrhosus x L. rohita hybrids. Thirty per cent of all presumptive L. rohita turned out to be hybrids between L. rohita x C. catla and L. rohita x C. cirrhosus. The high incidence of hybrids in C. catla might be responsible for slower growth of the fish in aquaculture.

A Review of Indian Ocean Fisheries for Skipjack Tuna, Katsuwonus pelamis, and Yellowfin Tuna, Thunnus albacares

Skipjack tuna, Katsuwonus pelamis, and yellowfin tuna, Thunnus albacares, together comprise the most important component of Indian Ocean tuna catches. Catches of these species by Indian Ocean fisheries have been increasing over the last decade and totaled 262,300 metric tons (t) in 1986 (Fig. 1; Table 1). Skipjack tuna was the most important species at 32 percent of the total tuna catch in 1986; yellowfin tuna was the second most important at 25 percent. Skipjack tuna are found throughout the Indian Ocean from the Gulf of Arabia in the north to lat. 40°S (Fig. 2). Yellowfin tuna are also distributed throughout the ocean to about lat. 50�

Toward a Rational Seafood Trade Policy

With a record trade deficit of almost $146 billion in 1986, and continued high deficits in 1987, there is growing concern about how continued deficits will affect the U. S. economy. Because fishery products had a record $6.3 billion deficit in 1986, the U.S. National Marine Fisheries Service (NMFS) has made the reduction of the fisheries trade deficit one of its top priorities. A recent NMFS trade objective was to "increase exports and domestic consumption of U.S. fishery products" which would lead to a reduction in the trade deficit. In this paper we explore this policy in terms of practicality and desirability.