We report on our proposed work plan that will provide further input for the implementation of the CCAMLR krill fishery management Risk Assessment framework, based on Constable et al. (2016). We welcome offers of collaboration to expand on the work outlined in this work plan.
Abstract:
The United Nations' Intergovernmental Panel on Climate Change's (IPCC) Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC) was approved by the 195 member governments (including all CCAMLR Member governments) at the IPCC's 51st Session (IPCC-51) in September 2019 in Monaco. The SROCC constitutes the most rigorous and up-to-date assessment of how the ocean and cryosphere are changing, how they will change in the future under different climate change scenarios, the consequences of those changes, and the potential and limitations of various response options. In this paper, we summarise the findings of the SROCC with relevance to CCAMLR’s Scientific Committee and its Working Groups, particularly Ecosystem Monitoring and Management (WG-EMM) and Fish Stock Assessment (WG-FSA). We focus on Southern Ocean harvested species and on associated and dependent species, and also include information relevant for CCAMLR’s Ecosystem Monitoring Programme (CEMP). Findings from this report can be used to inform CCAMLR’s discussion of possible future monitoring and management actions in the context of climate change impacts on Southern Ocean ecosystems and fisheries, with the aim of ensuring that management is responsive to the effects of change.
Abstract:
As highlighted during the Commission meeting in 2019 (CCAMLR-39, paragraphs 6.6 to 6.14), the designation of a Special Area for Scientific Study under Conservation Measure 24-04 adjacent to Pine Island Glacier would be appropriate and timely. This is an area of significant interest for research on benthic ecology and evolution, past climate, bathymetric controls on glacier calving events, and
oceanographic drivers of ice loss. The designation of a Stage 2 SASS would facilitate and encourage such research to be undertaken in this region.
With the information provided in this paper, supplementary to the requirements of CM 24-04, we have addressed the request for further details information set out by the Commission in CCAMLR-38, paragraph 6.13. We encourage Members to review this information and to proceed towards the designation of this area as a Stage 2 Special Area for Scientific Study, in accordance with the
provisions of Conservation Measure 24-04.
Los otolitos (huesos de los oídos) de los peces tienen una función similar a la del oído medio de los humanos en el mantenimiento del equilibrio. Están formados por un compuesto de proteína y carbonato de calcio, elementos que se depositan a distintas tasas en un proceso que resulta en la formación alternativa de capas opacas y translúcidas en el otolito, lo mismo que los anillos de crecimiento de un árbol. De esta manera, al igual que la edad de un árbol, la edad de un pez puede determinarse contando los anillos de los otolitos.
Отолиты (кости уха) рыб функционируют скорее как среднее ухо человека в поддержании равновесия. Они состоят из комплекса белка и карбоната кальция, который откладывается с разной скоростью, оставляя в отолите чередующиеся непрозрачные и полупрозрачные полосы, точно так же, как кольца роста в дереве. Так же, как и для дерева, возраст рыбы можно определить, посчитав кольца в отолите.
Les otolithes (pierres d'oreille) de poisson servent au maintien de l'équilibre, un peu comme l'oreille interne chez l'homme. Ils sont constitués d'un assemblage complexe de protéines et de carbonate de calcium qui se fixe selon une périodicité différente pour former une alternance de zones opaques et de zones translucides, tout comme les stries de croissance d'un arbre. Ainsi, on peut déterminer l'âge d'un poisson en comptant les anneaux de croissance de l'otolithe.
The otoliths (ear bones) of fish function rather like the middle ear of humans in maintaining balance. They are made up of a complex of protein and calcium carbonate that are laid down at different rates in a process and leave alternating opaque and translucent bands in the otolith, just like the growth rings in a tree. So, just like a tree the age of a fish can be determined by counting the rings in the otoliths.
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