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Title: Bathymetric Distribution of Chaetognaths 
Author: Alvarino, Angeles
Date: 1964-01
Publisher: University of Hawai'i Press
Citation: Alvarino A. 1964. Bathymetric distribution of chaetognaths. Pac Sci 18(1): 64-82.
Abstract: The present report on the vertical distribution
of the Chaerognatha is based on a study of
the collections of plankton made by the Scripps
Institution of Oceanography expeditions in the
Pacific (Fig. 1) and Indian oceans. Therefore,
all the data included and discussed in this paper
have been obtained by the author from studies
and analysis of thousands of plankton samples
from those oceans; and, when other sources of
information are used in the discussion, the name
and date of the corresponding authority and
publication are given. The samples studied here
that cover the Pacific and Indian oceans were
taken at 140 m depth (oblique hauls), and at
other various depths: 270,300, 363,600, 700 or
868 m (closing nets or vertical tows), down to
3000 m deep (mid-water trawls). The results
obtained from these expeditions and from the
material examined while studying the seasonal
distribution of chaetognaths in the California
waters, and also from previous work in the
Atlantic, has made it possible to group the
species of this phylum into several categories
based on their distribution in depth.
ISSN: 0030-8870

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