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Tofua'a or Humpback whales - conservation in Vava'u in the Kingdom of Tonga, as a national tourism development also for their conservation site seeing of Whale Watching initiative to assist the conservation of the endangered specie.

We reviewed feral cat eradication campaigns on islands with the primary intent of assessing the approaches, successes, and challenges of these conservation actions to help facilitate future island conservation programs. We reviewed documented impacts of feral cat populations on island ecosystems and the recovery of native populations after cat removal. We then analyzed key aspects of these eradication campaigns to identify future directions and challenges of cat eradication. We compiled data from published and gray literature and personally communicated with over 60 researchers and conservation practitioners, covering most of the world’s insular regions.

Oceans play a crucial role in, amongst others, global biogeochemical cycles, in regulation of the climate and in the provision of food to sustain human populations. In particular people living in coastal areas in developing countries depend on marine food as their major source of proteins. Therefore it is not surprising that coastal zones are heavily populated.

Wastewater causes serious environmental and human health problems, especially in coastal zones.These is no single solution to solve such problems, because of the large variation in economic, social, cultural and physical characteristics in an area.