Being young in a changing world: how temperature and salinity changes interactively modify the performance of larval stages of the barnacle Amphibalanus improvisus

The fate of key species, such as the barnacle Amphibalanus improvisus, in the course of global change is of particular interest since any change in their abundance and/or performance may entail community-wide effects. In the fluctuating Western Baltic, species typically experience a broad range of environmental conditions, which may preselect them to better cope with climate change. In this study, we examined the sensitivity of two crucial ontogenetic phases (naupliar, cypris) of the barnacle toward a range of temperature (12, 20, and 28°C) and salinity (5, 15, and 30 psu) combinations. Under all salinity treatments, nauplii developed faster at intermediate and high temperatures. Cyprid metamorphosis success, in contrast, was interactively impacted by temperature and salinity. Survival of nauplii decreased with increasing salinity under all temperature treatments. Highest settlement rates occurred at the intermediate temperature and salinity combination, i.e., 20°C and 15 psu. Settlement success of "naive" cyprids, i.e., when nauplii were raised in the absence of stress (20°C/15 psu), was less impacted by stressful temperature/salinity combinations than that of cyprids with a stress history. Here, settlement success was highest at 30 psu particularly at low and high temperatures. Surprisingly, larval survival was not highest under the conditions typical for the Kiel Fjord at the season of peak settlement (20°C/15 psu). The proportion of nauplii that ultimately transformed to attached juveniles was, however, highest under these "home" conditions. Overall, only particularly stressful combinations of temperature and salinity substantially reduced larval performance and development. Given more time for adaptation, the relatively smooth climate shifts predicted will probably not dramatically affect this species.

How to build up furnace efficiency, in five stages of amplification,

17th ed., rev. and enl. 120th thousand.

Analyses of parts of tobacco plant at different stages of growth /

"New series" vol. IV, no.3.

The Dance of Death, through the various stages of human life /

Mode of access: Internet.

Evolution of expression. A compilation of selections illustrating the four stages of development in art as applied to oratory.

Mode of access: Internet.

Highest and lowest annual stages of the Mississippi River and principal tributaries, to ... /

Description based on: 1927.

An history of fungusses, growing about Halifax : wherein their varieties, and various appearances in the different stages of growth, are faithfully exhibited ... With a particular description of each species, in all its stages, ... /

"Appendix : containing such plants of the fungi order as have been discovered since the publication of the former volumes" : p. [135-138].

Stories for children, intended to be read or recited to them in early periods of infancy. Being the first part of a series of amusement and instruction adapted to the progressive stages of early life.

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The drunkard's looking glass : reflecting a faithful likeness of the drunkard, in sundry very interesting attitudes : with lively representations of the many strange capers which he cuts at different stages of his disease ... /

First edition published in 1812 under title: God's revenge against drunkenness.

History of the archdiocese of Boston in the various stages of its development, 1604 to 1943 ...

I. 1604-1825: pt. I. Catholic people and Catholic priests in colonial New England, by J. E. Sexton. pt. II. The organized Catholic church in Boston from its beginnings to the end of Bishop Cheverus' reign, by J. E. Sexton.--II. 1825-1866: pt. III. The diocese under Bishop Benedict Joseph Fenwick, S. J. (1825-1846) by R. H. Lord. pt. IV. The diocese under Bishop Bernard Fitzpatrick (1846-1866) by E. T. Harrington.--III. 1866-1943: pt. V. The archdiocese of Boston under the Most Reverend John Joseph Williams (1866-1907) by R. H. Lord. pt. VI. The archdiocese of Boston under His Eminence William cardinal O'Connell (1907-1943) by R. H. Lord.

The human heart illustrated by nine figures of the heart, representing the different stages of life, and two death-bed scences: the wicked and the righteous.

Mode of access: Internet.

The trial of Aaron Burr for high treason, in the Circuit Court of the United States for the district of Virginia, summer term, 1807 : comprising all the evidence and the opinions of the court upon all motions made in the various stages of the case, with abstracts of arguments of counsel : compiled from authentic reports made during the progess of the trial : to which is added an account of the subsequent proceedings against Burr, Blennerhassett, and Smith, in the same court, with notes by the compiler on the law of treason, as applicable to the existing rebellion : prefaced by a brief historical sketch of Burr's western expedition of 1806 /

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Larned's History of the world; or, Seventy centuries of the life of mankind. A survey of history from the earliest known records through all stages of civilization, in all important countries, down to the present time, with an introductory account of prehistoric peoples, and with character sket.

Paged continuously. "Books quoted or referred to": vol. v, p.1416-1422. Published 1914. Published in 1905 under title: Seventy centuries of the life of mankind.