Английский язык: Сборник текстов и упражнений. Дьякова Н.П. - 34 стр.

throughout its range. There are important factors which are no doubt playing a
role in the Bering Sea environment. These are:
    Global Climate change
    …the extent of the sea ice cover-a critical habitat for many marine mammals-
has shrunk by 5% in the last 30 years.
    …Warmer sea surface temperatures in 1997 and 1998 gave us a preview of the
future-we observed unusual algae blooms, massive die-offs of 3 species of sea-
birds, and low salmon return in certain areas of the Bering Sea.
    Toxic Pollution
    Throughout the ecoregion, scientists are finding the presence of contaminants
such as Persistent Pollutants (POPS). POPS are long-lasting, travel long distances
and can interfere with reproduction of humans and wild-life. These contaminants
are appearing in wild life that are far from the source of the pollution.

   Translate the text using a dictionary.

                                   Word supplement

   biological diversity                       биоразнообразие
   to seek (sought)                           пытаться, стараться
   whale baleen                               китовый ус
   opilio crab                                краб стригун
   steller sea lion                           сивуч
   northen fur seal                           северный морской котик
   sea otter                                  калан
   persistent organic pollutants              стойкие органические загрязнители
                                              (СОЗ)
   contaminant                                загрязнитель



                                Text 12
                        ECOSYSTEM MANAGEMENT

    «The overarching principles of ecosystem-based management of fisheries are
an extension of the conventional principles for sustainable fisheries development
to cover the ecosystem as a whole. They aim to ensure that, despite variability,
uncertainty and likely natural changes in the ecosystem, the capacity of the aqua-
tic ecosystems to produce fish food, revenues, employment and, more generally,
other essential services and livelihood, is maintained indefinitely for the benefit of
the present and future generations.
    The main implication is the need to cater both for human as well as ecosystem
well-being. This implies conservation of ecosystem structures, processes and inte-
ractions through sustainable use. This implies consideration of a range of fre-

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