English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Larvae of the rock crab Cancer irroratus were cultured under specific environmental regimes to examine the influence of temperature and salinity on respiration and excretion rates during development. In addition, the type of biochemical substrate used for energy production was determined. The allometric relationship between oxygen consumption and body weight (i(3,) was found to be affected by temperature but not by salinity. Larvae cultured at 10 "C exhibited a significantly (P5 0.05) higher regression coefficient (1.35) than did larvae maintained at either 15 " (0.80) or 24 "C (0.87). In contrast, the relationship of ammonia excretion rate (VNH-,) to body weight were not affected by temperature but were affected by salinity. Larvae cultured in 15 "C at 25 %. S released significantly greater amounts of ammonia than did larvae of similar size at either 30 %O or 35 %S. The atomic ratio of oxygen consumed to nitrogen excreted, the 0 : N ratio, fluctuated during development for larvae maintained in all environmental regimes tested. For larvae cultured at 10 "/30 %O S, the 0 : N ratio was low indicating that protein was the primary substrate used as an energy source. At the other conditions tested, the 0 : N ratio generally remained high indicating a combined use of protein, lipids and carbohydrates as energy sources. These data suggest that the successful development and recruitment of rock crab larvae is influenced by environmental conditions within their tolerance limits where physiological performance is impaired to such an extent that they are less fit to effectively compete within the zooplankton community.

Physiological Studies on Cancer irroratus Larvae II. Effects of Temperature and Salinity on Physiological Performance