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Kuroshio
krill planktonic crustaceans of the order of the Euphausiacea, that occur in dense
swarms in the Antarctic and subantarctic seas and form the main food for
baleen whales, pinguins and seals. An important species is Euphausia superba. Since krill has a high protein content, commercial krill fisheries are
developing in Antarctic waters.
K-strategya life strategy optimally geared to living in a stable habitat with a high
level of interspecific competition. Often, significant energy is invested in
defense mechanisms. Parental care is facilitated by low fecundity (small litters of large-sized offspring), by longevity and size. The consequent lower
mortality of young leads to more efficient use of energy resources. The birth
rate in K-strategists is very sensitive to population density, and will rise rapidly if density falls. K-strategists are unlikely to be well adapted to recover
from population densities significantly below their equilibrium level (K)
and may become extinct if depressed to such low levels. These organisms,
rather than the r-strategy selected species, need the concern of the conservationist.
Kuroshio strong boundary current in the western part of the northern Pacific. It
flows along the east coast of Taiwan and Japan up to about 35° N latitude,
where it turns to the east.
Kuroshio
krill planktonic crustaceans of the order of the Euphausiacea, that occur in dense
swarms in the Antarctic and subantarctic seas and form the main food for
baleen whales, pinguins and seals. An important species is Euphausia superba. Since krill has a high protein content, commercial krill fisheries are
developing in Antarctic waters.
K-strategya life strategy optimally geared to living in a stable habitat with a high
level of interspecific competition. Often, significant energy is invested in
defense mechanisms. Parental care is facilitated by low fecundity (small litters of large-sized offspring), by longevity and size. The consequent lower
mortality of young leads to more efficient use of energy resources. The birth
rate in K-strategists is very sensitive to population density, and will rise rapidly if density falls. K-strategists are unlikely to be well adapted to recover
from population densities significantly below their equilibrium level (K)
and may become extinct if depressed to such low levels. These organisms,
rather than the r-strategy selected species, need the concern of the conservationist.
Kuroshio strong boundary current in the western part of the northern Pacific. It
flows along the east coast of Taiwan and Japan up to about 35° N latitude,
where it turns to the east.