Abstract:
The study of the Chaetognatha picked out from 21 plankton samples taken along the Argentinian, Uruguayan and Brazilian coasts, revealed the presence of the following species: Krohnitta pacifica, K. subtilis, Pterosagitta draco, Sagitta bipunctata, S. enflata, S. friderici, S. hexaptera, S. hispida, S. lyra, S. maxima, S. minima, S. planctonis, S. serratodentata, S. tenuis and S. sp. A. All specimens were measured and a complete biometrical table is included. Based on the Chaetognatha and the Thecosomata fauna analyzed by means of the S orensen's index of similarity between samples, the area is divided into four zones with different hydrological characteristics. There is a distinct relationship between the total length of fully mature specimens and latitude. Based on diagrams, an inter-specific competition between S. enflata and S. t tenuis is suggested. The geographic distribution of K. subtilis and S. planctonis is enlarged. © 1975 Dr. W. Junk b.v. Publishers.
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Citas:
---------- APA ----------
(1975)
. Some biometrical, ecological, morphological and distributional aspects of Chaetognata. Hydrobiologia, 46(4), 515-534.
http://dx.doi.org/10.1007/BF00028289---------- CHICAGO ----------
Boltovskoy, D.
"Some biometrical, ecological, morphological and distributional aspects of Chaetognata"
. Hydrobiologia 46, no. 4
(1975) : 515-534.
http://dx.doi.org/10.1007/BF00028289---------- MLA ----------
Boltovskoy, D.
"Some biometrical, ecological, morphological and distributional aspects of Chaetognata"
. Hydrobiologia, vol. 46, no. 4, 1975, pp. 515-534.
http://dx.doi.org/10.1007/BF00028289---------- VANCOUVER ----------
Boltovskoy, D. Some biometrical, ecological, morphological and distributional aspects of Chaetognata. Hydrobiologia. 1975;46(4):515-534.
http://dx.doi.org/10.1007/BF00028289