Investigating the influence of ‘minor’ krill-predators on the krill-predator dynamics of the Antarctic ecosystem. ...

• Main Authors: Moosa, Naseera, Butterworth, Doug
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: University of Cape Town 2023
• Subjects: Biological mathematics; Biostatistics; Applied statistics; Antarctic; Butterworth; The Antarctic; Antarc*; Antarctica; Euphausia superba
• Online Access: https://dx.doi.org/10.25375/uct.22117487; https://zivahub.uct.ac.za/articles/presentation/Investigating_the_influence_of_minor_krill-predators_on_the_krill-predator_dynamics_of_the_Antarctic_ecosystem_/22117487

Presentation to the PISCES/ICES Small Pelagic Fish: New Frontiers in Science for Sustainable Management Symposium, Lisbon, Portugal, 9 November 2022: 24pp, titled: Investigating the influence of ‘minor’ krill-predators on the krill-predator dynamics of the Antarctic ecosystem. Abstract: Krill ( Euphausia superba ) is a small pelagic crustacean and constitutes the largest forage fish resource in the Antarctic ecosystem. Over recent decades, a krill fishery has slowly expanded in this region. As a result, there is an increasing interest in how to harvest krill optimally without unduly impacting its natural predators. Many whale, seal, penguin and fish populations feed primarily on krill and share similar feeding grounds south of 60°S around Antarctica. In 2006, the Mori-Butterworth ecosystem model attempted to explain the population dynamics of the major krill-eating species in the Antarctic through predator-prey interactions only. Roughly ten years later, this krill-predator model was refined in Moosa (2017). ...