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The relationship between temperature and rhythmic cirral activity in some Cirripedia considered in connection with their geographical distribution

1. Barnacles can tolerate quite a wide range of temperature without being killed, remain responsive to stimuli over a more limited range, but are fully active only within relatively narrow limits. It is the last range that is most important in determining the fitness of a species to its geographical distribution and the extent of competition between species. 2. During the past...

Cirripedia of Madeira

We give a list of Cirripedia from Madeira Island and nearby deep water, based on specimens in the collection of the Museu Municipal do Funchal (História Natural) (MMF), records mentioned in the literature, and recent collections. Tesseropora atlantica Newman and Ross, 1976 is recorded from Madeira for the first time. The Megabalanus of Madeira is M. azoricus. There are 20 genera...

Temperature-driven phenological changes within a marine larval fish assemblage

an average time between trawls of 8.87 days (+6.50 SD). The samples were preserved in 4% borax-buffered formaldehyde, and larval fish were identified by the late Prof. Alan J. Southward. In total, the

Regional climatic warming drives long–term community changes of British marine fish

Climatic change has been implicated as the cause of abundance fluctuations in marine fish populations worldwide, but the effects on whole communities are poorly understood. We examined the effects of regional climatic change on two fish assemblages using independent datasets from inshore marine (English Channel, 1913–2002) and estuarine environments (Bristol Channel, 1981–2001...

The relationship between temperature and rhythmic cirral activity in some Cirripedia considered in connection with their geographical distribution

1. Barnacles can tolerate quite a wide range of temperature without being killed, remain responsive to stimuli over a more limited range, but are fully active only within relatively narrow limits. It is the last range that is most important in determining the fitness of a species to its geographical distribution and the extent of competition between species. 2. During the past...