온난화에 따른 오징어 유생 생태 특성 변화

Title
온난화에 따른 오징어 유생 생태 특성 변화
Alternative Title
Predicted ecological characteristics of common squid (Todarodes pacificus) larvae inferred by various climate models under IPCC SRES A1B Scenarios
Author(s)
김중진; 김철호; 민홍식; 장찬주; W T Stockhousen; 김수암
KIOST Author(s)
Jang, Chan Joo(장찬주)
Alternative Author(s)
김철호; 민홍식; 장찬주
Publication Year
2012-06-06
Abstract
To predict the ecological characteristics of common squid (Todarodes pacificus), we simulated the present and future ocean circulations using an East Asia Regional Ocean model (Modular Ocean Model, MOM version 3) projected by the three different global climate models under IPCC SRES A1B scenario. Mean climate states for 1990-1999 and 2030-2039 from 20th and 21th Century Climate Change Model Simulation were used as surface conditions for simulations, and we examined changes in spawning ground, hatching condition, larval dispersion between 1990s and 2030s. To infer spawning ground, the temperatures range of 15-23°C at 50 m depth were used because the highest density of hatchling were found at 25-50 m depth. Also, spawning is considered to occur at the continental shelf and slope of 100-500 m depth. Since mixed layer depth (MLD) is regarded as one of important factor determining successful hatching of egg masses, we examined the variability of MLD, and discussed its impacts on hatching condition. Lastly, using the velocity field from each model simulation, variability of larval dispersion was examined under different climate conditions. We used individual-based model incorporated ontogenetic vertical movement in larval dispersion, and simulated individuals tracked from inferred spawning grounds for 60 days.different global climate models under IPCC SRES A1B scenario. Mean climate states for 1990-1999 and 2030-2039 from 20th and 21th Century Climate Change Model Simulation were used as surface conditions for simulations, and we examined changes in spawning ground, hatching condition, larval dispersion between 1990s and 2030s. To infer spawning ground, the temperatures range of 15-23°C at 50 m depth were used because the highest density of hatchling were found at 25-50 m depth. Also, spawning is considered to occur at the continental shelf and slope of 100-500 m depth. Since mixed layer depth (MLD) is regarded as one of important
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27680
Bibliographic Citation
2nd International Symposium: Effects of climate change on the world, pp.125, 2012
Publisher
PICES
Type
Conference
Language
English
Publisher
PICES
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