Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Role of self-propulsion of marine larvae on their probability of contact
  with a protruding collector located in a sea current   Settlement of marine larvae on a substrate is a fundamental problem of marine
life. The probability of settlement is one of the quantitative characteristic
of the settlement process. The probability of larval contact with a substrate
is the upper bound of the probability of settlement. This work addresses the
problem of contact probability and contact rate of marine invertebrate larvae
with an isolated protruding collector located in an unbounded sea current.
There are two common approaches to the problem of contact probability. In one,
a collector induces certain cues, which help a larvae find the collector. In
such a case, the larva moves towards the collector deliberately, using its
navigation and propulsion devices. In the second approach, a larva moves
towards a collector as a passive small particle. In this case, the cause of
contact of a larva with a collector is a mechanical collision of a small moving
body with a large obstacle. We considered a larva which does not know the
location of the collector, which does not use its navigation device yet uses
its self-propulsion. We mimicked a larva by a tiny self-propelled underwater
vehicle, moving in shear flow of a large obstacle. We illustrated our approach
by studying contact of a larva of the Bryozoan Bugula neritina with a
cylindrical collector. We observed the behavior of this larva in a laboratory
flume, and according to the observations formulated a mathematical model of
larval motion in shear flow. The trajectories of a large number of larvae,
starting their motion far from a collector with random initial conditions are
calculated numerically, and the probability of their contact with a collector
is estimated. The results of Monte-Carlo simulations illustrate that larval
self-propulsion may increase the probability of their contact with a collector
by orders of magnitude compared to passive particles.

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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: stat
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: math