Neptune sources its krill from the Antarctic Ocean.

The management and control of krill harvesting is led by the 25-state member Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), which is the official and reliable international organization responsible for krill fishery management.

* Many studies have been undertaken and they show that the biomass of Antarctic krill, one of the world's most abundant biomass, may amount to 500 million tonnes. This standing stock is subject to annual natural reproduction providing renewable krill for predation, natural mortality and human exploitation.

* The precautionary catch limit set by the CCAMLR was 6.6 million tonnes for 2008 and is reviewed annually. It was increased from 4.9 million tonnes in 2005/06 based on the results of recent surveys.
o Less than 2% of the precautionary catch limit is actually harvested, which means that the catch limit is unlikely to be reached in the foreseeable future.
o The precautionary catch limits on the krill fishery are under constant review by the Scientific Committee of CCAMLR which uses an ecosystem approach to management.

* The annual natural reproduction of Antarctic krill is at least several hundred million tonnes constantly renewing the standing stock and granting sufficient krill for all marine mammals and fish, birds and human exploitation.
o Antarctic baleen whales are estimated to consume 85 million tonnes per year.
o Less than 120,000 tonnes of the annually set total catch limit of 6.6 million tonnes are harvested by fisheries.

Since Neptune's activities rely on krill as a biomass to benefit human health, its conservation is in its foremost interest which leads the Company to continuously monitor the ecological- and environmental-friendly harvest of its krill.

Antarctic krill (Euphausia superba Dana) is regarded as the key trophic resource in the Southern Ocean, being the main (or only) food source for the majority of higher-level heterotrophs, including Antarctic vertebrates such as penguins, whales and seals. The remarkable adaptive success of krill in this extreme environment is evident from its extraordinarily high abundance of at least 500 million tons (Miller & Hampton 1989), possibly the largest for any multicellular species on the planet (Hempel 1994). Antarctic krill also sustain the biggest single species crustacean fishery of the world (Nicol & Endo 1997), with a harvest regulated by the Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), which sets annual catch limits for Atlantic and Indian sectors of the Southern Ocean (CCAMLR 1996). Recent reports have provided evidence of a possible decline in krill abundance (perhaps linked to the long-term global warming trend (Loeb et al. 1997)), accentuating the need for careful management of this important resource.

Krill (Euphausia superba) provide a direct link between primary producers and higher trophic levels in the Antarctic marine food web1–6. The pelagic tunicate Salpa thompsoni can also be important during spring and summer through the formation of extensive and dense blooms6–9. Although salps are not a major dietary item for Antarctic vertebrate predators7,10, their blooms can affect adult krill reproduction and survival of krill larvae. Here we provide data from 1995 and 1996 that support hypothesized relationships between krill, salps and region-wide sea-ice conditions11,12. We have assessed salp consumption as a proportion of net primary production, and found correlations between herbivore densities and integrated chlorophyll-a that indicate that there is a degree of competition between krill and salps. Our analysis of the relationship between annual sea-ice cover and a longer time series of air temperature measurements12,13 indicates a decreased frequency of winters with extensive sea-ice development over the last five decades. Our data suggest that decreased krill availability may affect the levels of their vertebrate predators. Regional warming and reduced krill abundance therefore affect the marine food web and krill resource management.