• Journal of Science Education
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• v.36 no.1
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• pp.153-165
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• 2012

This study investigated the frequent mistakes and the causes of the alternative conceptions in the animal classification by using the questionnaire and interview with the middle school students (N=300). As results, some students have difficulties classifying suggested animals into vertebrates or invertebrates : snakes (31.7%), shrimps (28.3%), turtles (25.6%), frogs (24.7%), and starfish (10.7%) in order of precedence. These errors seemed to be caused by intuitive thinking over characteristics of physical motions and appearance of suggested animals, wrong inference from comparing to features of familiar animals and the lack of observation experience of the vertebrate backbone. Furthermore, the results showed that relatively many students made a mistake classifying subgroup members of vertebrates such as classifying salamanders into the class Reptilia (45.3%) and turtles into Amphibia (40.3%). It is likely that those errors are affected by ambiguousness of classification terminology (e.g. the term of Amphibia) and weak ability in relating the physiological and ecological feature to standard of classification feature. In addition, sociocultural factors could influence animal classification as 'bat in birds', 'whale in fish, and 'penguin in mammals'. The present study implied that teaching and learning animal classification may require an appropriate guide focused on activities to explore major characteristics used for the animal classification standard through providing more chances of animal observation rather than the cramming method of learning induced by technical memorizing.

• Korean Journal of Environmental Biology
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• v.17 no.4
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• pp.389-400
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• 1999

Habitat preferences of benthic macroinvertebrates were studied according to the different substrate composition. Although it was hard to determine the common dwellers in the habitats with cobbles and pebbles, some taxa such as Ephemera orientalis, Davidius lunatus, Tipula KUb, Isonychica japonica and Tabanus amaenus etc. occurred preferably in the habitats with gravel/sand. In all the sampling stations, the numbers of species collected in the habitats with gravel/sand were always remarkably smaller as compared with the habitats with cobbles and pebbles.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.90-90
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• 2017

물리서식처 분석 하천에서 유량에 따른 수심, 유속, 기층 등의 물리서식처 조건의 변화가 서식처 적합도에 미치는 영향을 수치모의를 통하여 분석하는 방법이다. 기존 물리서식처 분석은 어류를 중심으로 수생태계 평가 및 생태유량산정 등의 다양한 하천관리 문제에 적용되었다. 어류의 경우 수생태계의 최상위 포식자이며 상대적으로 모니터링하기에 용이하고 수생태계에 빠르게 반응하고 이동 및 이주가 단기간에 나타나는 특징이 있다. 또한 상업 및 레크리에이션으로의 활용도가 높기 때문에 사회적인 이목이 어류로 집중되었다. 따라서 많은 연구들이 어류를 중심으로 물리서식처 분석을 실시하였으며, 저서무척추 동물에 대한 분석은 미흡한 실정이다. 저서무척추 동물은 어류의 중요한 먹이원이자 수생태계의 건강성을 나타내는 중요한 지표로 활용되고 있으므로, 수생태계의 통합 및 먹이사슬의 보존을 위하여 저서무척추 동물에 대한 물리서식처 평가는 중요하다. 이 연구의 목표는 하천에서의 저서무척추동물의 군집을 평가할 수 있는 서식처모형을 제시하는데 있다. 이를 위해 저서무척추 동물을 서식기능군에 근거한 기는무리, 붙는무리, 헤엄치는 무리, 굴파는 무리로 분류하여 서식처 적합도 지수를 제하고 보철거 사례에 적용하여 모형의 검증성을 확인하였다.

• The Zoological Society Korea : Newsletter
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• v.12 no.2
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• pp.86.2-86
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• 1995

• Proceedings of the Zoological Society Korea Conference
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• 1995.10b
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• pp.154.1-154
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• 1995

• Animal Systematics, Evolution and Diversity
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• v.12 no.3
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• pp.221-235
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• 1996

The ascidians of Chundo Island are identified into 15 species, 8 genera, 6 families. Among them two species are found to be new to Korean fauna. They are Ascidia sydneiensis Stimpson and Ascidia zara Oka. They are described with figures, and the other species are provided with remarks.

• Korean Journal of Ichthyology
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• v.18 no.4
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• pp.293-299
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• 2006

Copper,zinc superoxide dismutase (Cu,Zn-SOD) plays a key role to the first antioxidant defense system against oxidative stress in diverse aerobic organisms. Due to the housekeeping action of Cu,Zn-SOD, it was reported that the structure and function have been conserved during evolution. In this study Cu,Zn-SOD from cloudy catshark Scyliorhinus torazame was subjected to phylogenetic analyses to know its evolutionary relationship in the vertebrate lineage. Molecular phylogenetic trees inferred by NJ, MP, ML and/or Bayesian analyses showed two shark species, Prionace glauca and S. torazame grouped together with high statistical supports. In general, they placed at the separated position from bony vertebrates. Thereafter, bony vertebrates composed of teleosts and birds/mammals (amniotes) formed a monophyletic group. Each teleost and amniote clade was also supported by relatively high statistical values. These phylogenetic relationships are well congruent with the phylogenetic hypothesis of the ancestral position of cartilaginous fishes to bony vertebrates.

• Animal Systematics, Evolution and Diversity
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• v.9 no.2
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• pp.123-149
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• 1993

The present study is to examine the taxonomy and distribution of holothurians (especially Subclass Dendrochirotacea) as a part of study on marine invertevrate of Korea. The materials were collected at 10 localities in the coastal seas and islands of Korea from April, 1971 to September, 1992. As a result, 16 dendrochirotida species belonging to 13 genera, 4 families were identified, of which 11 species have not been recorded in Korean fauna before.

• Journal of Convergence for Information Technology
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• v.11 no.12
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• pp.168-175
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• 2021

In this study, a transdisciplinary convergence education program was developed to enhance the understanding for classification of reptiles and amphibians in biology education and also to increase AI (Artificial Intelligence) capability by using artificial intelligence education. The main content is to solve the classification of reptiles and amphibians that has been dealt with for a long time in biology education, using a decision tree and ML4K (Machine Learnig for Kids), it was designed for a total of 3 lessons. Experts review was conducted on the developed education program, as a result, the I-CVI(Item Content Validity Index) value was .88~1.00 so that can secure content validity. This education program has the advantage of being able to simultaneously learn about the learning contents of artificial intelligence in informatics and the classification of vertebrates in the biological education. In addition, since it is configured to minimize the cognitive load in the AI using part, it is characterized by the fact that all of any teachers can apply it their lesson easily.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.10a
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• pp.121-122
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• 2000

멍게류는 분류학적으로 무척추동물과 척추동물의 중간에 위치한 원색동물문(原索動物門)에 속하는 생물로서, 전세계적으로 약 2,000여종이 서식하고 있는 것으로 알려져 있다. 멍게류 중 산업적으로 가치가 있는 종은 우렁쉥이(Halocynthia roretzi)로서, 그 특유의 향기 및 맛으로 인해 우리나라와 일본 등지에서 생선회와 더불어 즐겨 먹고 있는 수산식품이다. 우렁쉥이의 식품학적 특징으로는 특유의 맛과 trans-2, cis-7-decadien-1-ol 등과 같은 포화 및 불포화 1급알코올 등을 주로한 취기성분을 들 수 있는데, 이를 기호적으로 이를 즐기는 사람이 있는 반면 극히 싫어하는 사람도 있다. (중략)