INTENSE HURRICANE IN THE SOUTH PACIFIC OCEAN, APRIL 6–12, 1933

Organochlorine contaminants in albatross from the South Pacific Ocean

1. Albatross eggs and embryos were collected in field seasons from 1996 to 1998 by Department of Conservation field staff. Species collected were the Northern Royal albatross (Diomedea sanfordi), Northern Buller's mollymawk (Thalassarche (platei) (nova sp.)) and Chatham Islands mollymawk (Thalassarche eremita). 2. Tissues were submitted to ESR for chemical analysis. Chemicals of particular inte...

Stock assessment of albacore tuna in the south Pacific Ocean

Aphotic N2 Fixation in the Eastern Tropical South Pacific Ocean

We examined rates of N2 fixation from the surface to 2000 m depth in the Eastern Tropical South Pacific (ETSP) during El Niño (2010) and La Niña (2011). Replicated vertical profiles performed under oxygen-free conditions show that N2 fixation takes place both in euphotic and aphotic waters, with rates reaching 155 to 509 µmol N m(-2) d(-1) in 2010 and 24±14 to 118±87 µmol N m(-2) d(-1) in 2011....

Radiocarbon in dissolved organic carbon of the South Pacific Ocean

Marine dissolved organic carbon (DOC) originates mainly from primary production using dissolved inorganic carbon (DIC) that has young C ages. Paradoxically, the C age of deep DOC ranges from 4000 to 6400 C years, indicating that a portion of DOC survives multiple, deep ocean mixing cycles. Here we show that C ages of DOC from the deep South Pacific are equal to those from the deep north central...

Ocean acoustic hurricane classification.

Theoretical and empirical evidence are combined to show that underwater acoustic sensing techniques may be valuable for measuring the wind speed and determining the destructive power of a hurricane. This is done by first developing a model for the acoustic intensity and mutual intensity in an ocean waveguide due to a hurricane and then determining the relationship between local wind speed and u...