Carico genetico in Tisbe (Copepoda, Harpacticoida). III. T. bulbisetosa della laguna di Grado e della sacca di Scardovari

Massimiliano Cervelli; Giancarlo Fava

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti (1980)

  • Volume: 68, Issue: 4, page 343-351
  • ISSN: 0392-7881

Abstract

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Two populations of Tisbe bulbisetosa from brackish environments were examined, the first from the mouth of the port-entrance of Grado, the second from a more inward position, from the Scardovari embayment on the Po delta. Comparisons were made with a third population from Malamocco, in the lagoon of Venice, which was studied in a previous work. The three localities differed in terms of chemical and physical parameters, and in the composition of benthic communities. The mean nauplius to adult survival of outcrossed invididuals differs in the three populations, the value being highest in Malamocco and lowest in Scardovari. Concealed genetic variability was calculated from estimates of the genetic load (number of lethal equivalents) based on depression of survival with progressive inbreeeding; the highest values were found in the population of Grado, the lowest in that of Scardovari. These data suggest there is a relationship between environmental stability, biological heterogeneity, and the genetic variability of T. bulbisetosa as determined by the number of lethal equivalents.

How to cite

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Cervelli, Massimiliano, and Fava, Giancarlo. "Carico genetico in Tisbe (Copepoda, Harpacticoida). III. T. bulbisetosa della laguna di Grado e della sacca di Scardovari." Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti 68.4 (1980): 343-351. <http://eudml.org/doc/288603>.

@article{Cervelli1980,
author = {Cervelli, Massimiliano, Fava, Giancarlo},
journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti},
language = {ita},
month = {4},
number = {4},
pages = {343-351},
publisher = {Accademia Nazionale dei Lincei},
title = {Carico genetico in Tisbe (Copepoda, Harpacticoida). III. T. bulbisetosa della laguna di Grado e della sacca di Scardovari},
url = {http://eudml.org/doc/288603},
volume = {68},
year = {1980},
}

TY - JOUR
AU - Cervelli, Massimiliano
AU - Fava, Giancarlo
TI - Carico genetico in Tisbe (Copepoda, Harpacticoida). III. T. bulbisetosa della laguna di Grado e della sacca di Scardovari
JO - Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
DA - 1980/4//
PB - Accademia Nazionale dei Lincei
VL - 68
IS - 4
SP - 343
EP - 351
LA - ita
UR - http://eudml.org/doc/288603
ER -

References

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