Search the SPREP Catalogue

The very productive lagoon fisheries of Tarawa atoll changed greatly in recent decades as human development and intensive harvesting increased. Tarawa typifies the increasingly common condition of resource depletion and marine community structure change with expanding human activities and population growth. Fisheries-dependent reports have documented the change in fisher landings for nearly two decades. A comparison of fisheries-independent data collected during 1992-93 with data collected in 1977 allowed for documentation of large changes in important finfish resources in Tarawa Lagoon. The historically important bonefish (Albula glossodonta), like other important fishery species, demonstrated declines in catch-per-unit effort (CPUE), proportion of catch, mean length and weight (1977: 46.4 cm, 1.31 kg; 1992-93: 37.6 cm and 0.84 kg), and sex ratio (1977: 0.71:1 [F:M]; 1992-93: 0.15:1). Beach seine sampling of bait fishes demonstrated a major shift in species composition between 1977 and 1992- 93, with severe depletion of some preferred species. These results suggest declining abundance in locally important fish species and large changes in species composition within Tarawa Lagoon.

Knowledge of the fishermen of Tarawa Atoll, Kiribati concerning some key food fish in their waters is described and shown to be highly relevant to the management of these fish. The bonefish, Albula glossodonta, has been the most important shallow- water finfish in Tarawa catches. However, all but one of its known spawning runs has been eliminated according to fishermen and this last remaining run is showing signs of severe depletion. Traditional marine resources management measures, some conservation-driven and others with different objectives, were diverse. But they have largely disappeared due, in part at least, to the impacts of British colonial rule. Reestablishing some form of local marine tenure seems essential to sound marine resource management, although the difficulties that would be encountered in doing so are not trivial.

The study of marine sediments provides useful information in marine, environmental and geochemical research about pollution of the marine environment (Calace et al. 2005). Urban developments and industrial activities contribute to the introduction of significant amounts of contaminants (among them trace metals) into the marine environment and affect directly the coastal systems where they are often deposited (Angelidis 1995; Dassenakis et al. 2003). The growing apprehension about the potential effects of sediment toxicity poses to marine fauna and flora and the risk posed to the environment by the contaminants accumulated by the sediments have aroused an increase in research interests in marine sediments (Vernet 1991; Calace et al. 2005).

Seaweed farming in Kiribati

The Republic of Kiribati comprises 33low-lying coral atolls (except Banaba), which are divided into three main island groups; the Gilbert group,the Phoenix group and the Line islands. Its total land area is about811 sq km within an equatorial Economic Exclusive Zone (EEZ) of some 3.6 million sq km in the Central Pacific. The maximum height above sea-level for Kiribati is 87 m.The population of Kiribati was estimated at 88 600 in19991, of which over 90% live in the Gilbert group,mostly on Tarawa atoll, the capital and commercial centre of Kiribati.Situated in the dry belt of the equatorial oceanic climatic zone, rainfall varies from 1 000 mm to 3 000mm per year. Severe, prolonged droughts are common in the drier islands in the central and southern equatorial region (eg. Gilberts and on Banaba, the Phoenix Islands, and Kiritimati)

An environmental impact assessment (EIA) was conducted on Christmas Island as it was a prime site for establishment of the HOPE-X landing facility by the NASDA.

Mongabay rainforest profiles: American Samoa, French Polynesia, Guam, Kiribati, Micronesia, Nauru, Palau, Samoa, Solomon Islands, Tokelau, Tonga, Tuvalu, Vanuatu