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The First International Conference on Marine Mammal Protected Areas

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Bryde’s whales in Southeast Brazil – integrating research with MPA management<br />

Mabel Augustowski<br />

<str<strong>on</strong>g>The</str<strong>on</strong>g> broad c<strong>on</strong>tinental shelf al<strong>on</strong>g the southeastern coast of Brazil supports a large<br />

sardine fishery, especially off the states of São Paulo and Rio de Janeiro. <str<strong>on</strong>g>The</str<strong>on</strong>g> many<br />

islands of the regi<strong>on</strong> serve as natural barriers for water circulati<strong>on</strong> and c<strong>on</strong>tribute to the<br />

upwelling of nutrients, thus enhancing the availability of plankt<strong>on</strong> for sardines. Bryde’s<br />

whales feed in this regi<strong>on</strong>, mainly during the spring and summer. Little was known until<br />

recently by scientists, MPA managers, and the general public about the Bryde’s whales of<br />

this regi<strong>on</strong>.<br />

<str<strong>on</strong>g>The</str<strong>on</strong>g> Bryde’s Whale Project developed by CEMAR began in 2001 in Laje de Santos<br />

<strong>Marine</strong> State Park, an MPA used mostly by divers about 25 mi offshore. With the<br />

cooperati<strong>on</strong> and involvement of dive tour operators and using the dive boats as<br />

platforms of opportunity, data have been collected <strong>on</strong> the occurrence and behavior of<br />

Bryde’s whales in all m<strong>on</strong>ths and in areas both inside and outside the park. Also, cruises<br />

offshore to the 3,000 m isobath aboard the oceanographic vessel of the Instituto<br />

Oceanografico/Universidade de Sao Paulo have enabled observati<strong>on</strong>s of possible<br />

breeding behavior by Bryde’s whales. Sites near coastal islands with potential for whale<br />

watching have been identified. Oil and gas development is regarded as a primary threat.<br />

Another potential threat, entanglement in commercial fishing, has yet to be evaluated.<br />

<str<strong>on</strong>g>The</str<strong>on</strong>g> Bryde’s Whale Project emphasizes the development and maintenance of close<br />

working relati<strong>on</strong>ships with local villages and cities. Also, efforts are made to ensure that<br />

team members are included <strong>on</strong> MPA advisory or management boards. <str<strong>on</strong>g>The</str<strong>on</strong>g> government<br />

of Sao Paulo State recently designated three new multiple-use MPAs, covering almost<br />

the entire coast from shore to depths of 25-50 m, thus encompassing much of the<br />

habitat used by Bryde’s whales. A research program established to support management<br />

of these MPAs involves, at least in principle, formal links with universities and other<br />

scientific and technical instituti<strong>on</strong>s. <str<strong>on</strong>g>The</str<strong>on</strong>g> program’s success will, as always, depend <strong>on</strong><br />

adequate, sustained funding.<br />

Understanding our waters – A proposed <strong>Protected</strong> Area Network for Cetacean Diversity in Bangladesh<br />

Rubaiyat Mansur Mowgli<br />

<str<strong>on</strong>g>The</str<strong>on</strong>g> Wildlife C<strong>on</strong>servati<strong>on</strong> Society’s Bangladesh Cetacean Diversity Project has<br />

c<strong>on</strong>ducted a wide range of research <strong>on</strong> cetaceans in estuarine, coastal, and submarine<br />

cany<strong>on</strong> waters. <str<strong>on</strong>g>The</str<strong>on</strong>g> results include: (1) a populati<strong>on</strong> estimate of Ganges and Irrawaddy<br />

dolphins in the Sundarbans mangrove forest, (2) an assessment of occurrence and<br />

distributi<strong>on</strong>al ecology of near-shore marine cetaceans, with abundance estimates for<br />

Irrawaddy dolphins and finless porpoises, (3) an investigati<strong>on</strong> of habitat selecti<strong>on</strong> of<br />

freshwater-dependent cetaceans and the potential effects of declining freshwater flows<br />

and sea-level rise in waterways of the Sundarbans, (4) a study of fishing gear<br />

entanglement of Ganges River dolphins in the Sundarbans, and (5) identificati<strong>on</strong> of<br />

channel characteristics and locati<strong>on</strong>s of hotspots for freshwater-dependent cetaceans in<br />

the eastern Sundarbans.<br />

ICMMPA <str<strong>on</strong>g>C<strong>on</strong>ference</str<strong>on</strong>g> Proceedings<br />

31

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