The methane-emitting cold seeps of Hikurangi margin (New Zealand) are among the few deep-sea chemosynthetic ecosystems of the Southern Hemisphere known to date. Here we compared the biogeochemistry and microbial communities of a variety of Hikurangi cold seep ecosystems. These included highly reduced seep habitats dominated by bacterial mats, partially oxidized habitats populated by heterotroph...

H U B L (1956) demonstrated that if the supra-oesophageal ganglion of lumbricid oligochaetes is removed at the time of amputation of a number of posterior segments, caudal regeneration is totally inhibited, but if the ganglion is not removed until 24-48 hours after amputation of the posterior segments, regeneration proceeds at the normal rate. A comparable phenomenon may occur in nereid polycha...

The course of environmental conditions and shelf macrobenthic communities off Central Chile ( 361S) during the strong 1997–98 El Niño (EN) event is compared with a subsequent and basically ‘‘normal’’ period (2002–2003). Changes in macrofaunal community, feeding mode structure, and biomass size spectra are contrasted over time with changes in oceanographic and sediment settings, in order to asse...

Portunid crabs contribute to significant commercial and recreational fisheries globally are commonly fished in estuaries and/or marine embayments, which amongst the most degraded of all aquatic ecosystems. Portunus armatus were collected seasonally between April February from five locations across three systems temperate south-western Australia. The dietary composition was quantified compared t...

Surrogates of macrobenthic assemblages, intended to alleviate the effort and taxonomic expertise required for monitoring, can take many forms, such as using coarser levels (‘sufficiency’) or only a subset whole fauna (‘subsetting’). Here, power both approaches retain community-level patterns spatial temporal variation were evaluated an exceptionally long (47 yr) infaunal dataset generated from ...