Summary Chemolithoautotrophic bacteria from the genera Hydrogenovibrio, Thiomicrorhabdus and Thiomicrospira are common, sometimes dominant, isolates from sulfidic habitats including hydrothermal vents, soda and salt lakes and marine sediments. Their genome sequences confirm their membership in a deeply branching clade of the Gammaproteobacteria . Several adaptations to heterogeneous habitats are apparent. Their genomes include...

Steller sea lion ( Eumetopias jubatus ) young‐of‐the‐year ( YOY ) are nutritionally dependent upon their dam through the majority of their first year. Several indices of body condition were measured in YOY 1.5–9 mo of age captured in Southeast Alaska ( n = 122), the Gulf of Alaska ( n = 182), and the Aleutian Islands ( n = 38) to test the hypothesis that nutritional stress impacted the ability of adult female Steller sea lions...

Characteristics of the life history of the coral reef‐dwelling cardinalfish Siphamia tubifer , from Okinawa, Japan, were defined. A paternal mouthbrooder, S. tubifer , is unusual in forming a bioluminescent symbiosis with Photobacterium mandapamensis . The examined S. tubifer ( n = 1273) ranged in size from 9·5 to 43·5 mm standard length ( L S ), and the minimum size at sexual maturity was 22 mm L S . The number of S. tubifer...

Summary Light plays an important role for most organisms on this planet, serving either as a source of energy or information for the adaptation of biological processes to specific times of day. The fungal kingdom is estimated to contain well over a million species, possibly 10‐fold more, and it is estimated that a majority of the fungi respond to light, eliciting changes in several physiological characteristics including patho...