• 제목/요약/키워드: carnivore

검색결과 72건 처리시간 0.017초

채식선호자와 육식선호자의 식사의 질 및 비타민 K 섭취 비교 연구 (A Study for Comparison of Dietary Quality and Vitamin K Intake of Vegetarians with Carnivores)

  • 손금희;조여원
    • Journal of Nutrition and Health
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    • 제39권6호
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    • pp.529-538
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    • 2006
  • The prevalence of chronic diseases have been rising in the developing countries because of their increased animal foods consumption and Western lifestyle. Lately, vegetarian diet that exclude animal products get public attention. The purpose of this study was to evaluate the nutritional status and dietary quality of vegetarians, and their consumption of vitamin K and was also assessed. Vegetarians including strict vegan and lacto-ovo-vegetarian consumed their diet at least over 6 months. Carnivores were gender and age matched with vegetarians and they consumed over 50% of protein and fat from animal sources. Current nutrient intakes and dietary quality were assessed using 3-day food records and intake of vitamin K was calculated from the data base of 'Provisional Table on the vitamin K contents of foods, USA'. Blood sample were collected and biochemical parameters and plasma phylloquinone concentrations were analyzed. Anthropometric data from vegetarian and carnivore were not significantly different. The intake of calories, protein, vitamin $B_2$, Ca and Zn of the vegetarians were remarkably lower than RDA for each nutrient. Moreover, index of nutritional quality and nutrient adequacy ratio of vegetarians were lower than those of carnivore. Vegetarian consumed less fat and the ratio of n-6/n-3 fatty acid was lower in vegetarian. The intake of essential amino acids in vegetarian was significantly lower than that of carnivore. The vitamin K consumption and plasma phylloquinone concentration of vegetarian were significantly higher than those of carnivore (p<0.05). The dietary vitamin K consumption was positively correlated with plasma phylloquinone levels in vegetarian (p<0.01).

Other faunas, coral rubbles, and soft coral covers are important predictors of coral reef fish diversity, abundance, and biomass

  • Imam Bachtiar;Tri Aryono Hadi;Karnan Karnan;Naila Taslimah Bachtiar
    • Fisheries and Aquatic Sciences
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    • 제26권4호
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    • pp.268-281
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    • 2023
  • Coral reef fisheries are prominent for the archipelagic countries' food sufficiency and security. Studies showed that fish abundance and biomass are affected by biophysical variables. The present study determines which biophysical variables are important predictors of fish diversity, abundance, and biomass. The study used available monitoring data from the Indonesian Research Center for Oceanography, the National Board for Research and Innovation. Data were collected from 245 transects in 19 locations distributed across the Indonesian Archipelago, including the eastern Indian Ocean, Sunda Shelf (Karimata Sea), Wallacea (Flores and Banda Seas), and the western Pacific Ocean. Principal component analysis and multiple regression model were administered to 13 biophysical metrics against 11 variables of coral reef fishes, i.e., diversity, abundance, and biomass of coral reef fishes at three trophic levels. The results showed for the first time that the covers of other fauna, coral rubbles, and soft corals were the three most important predictor variables for nearly all coral reef fish variables. Other fauna cover was the important predictor for all 11 coral reef fish variables. Coral rubble cover was the predictor for ten variables, but carnivore fish abundance. Soft coral cover was a good predictor for corallivore, carnivore, and targeted fishes. Despite important predictors for corallivore and carnivore fish variables, hard coral cover was not the critical predictor for herbivore fish variables. The other important predictor variables with a consistent pattern were dead coral covered with algae and rocks. Dead coral covered with algae was an important predictor for herbivore fishes, while the rock was good for only carnivore fishes.

테마연재 / 카니보어 시스템을 통한 이메일 감청

  • 김연수
    • 디지털콘텐츠
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    • 6호통권97호
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    • pp.68-70
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    • 2001
  • 카니보어는 감청용 소프트웨어들을 내장한 개인용 컴퓨터 형태로 되어 있는 장비로서 인터넷을 통하여 수없이 오가는 전자우편들 가운데 특정 범죄혐의와 직접 관련된 핵심정보들만을 잡아낸다고 하여, 육식성 동물을 뜻하는 'Carnivore'라는 이름으로 불린다.

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Fish Composition and Trophic Guild Analysis as a Collection of Basic Data for Ecosystem Health Assessments in Yeongsan Lake

  • Choi, Ji-Woong;An, Kwang-Guk
    • 생태와환경
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    • 제40권4호
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    • pp.546-552
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    • 2007
  • The objectives of this study were to analyze fish compositions, based on trophic guilds and tolerance guilds and determine community characteristics structure at five sampling sites of Yeongsan Lake during July 2006-May 2007. Total number of species sampled was 30 species and the number was 1350. Cyprinidae (77%) and Centrarchidae (15.7%) dominated the community and then followed by Cobitidae(2.7%), Gobiidae(2.4%), Mugilidae (0.5%), and others (0.1%). The relative abundance of tolerant and omnivore species at all sites was 63% and 77% of the total, respectively, suggesting an ecological degradations in the Lake. Exotics species such as large mouth bass (Micropterus salmoides), which is a top-carnivore in the water distributed at all sampling sites, implying that ecological disturbance was severe based on previous reference of US EPA (1991). Also, we found external anomalies such as external deformities, bleeding and tumors and not found migratory fish. Analysis of fish community structure showed that species diversity index and richness index was the highest in Site 1 and the dominance index was the highest in Site 2. In this study, high proportions of tolerant species and omnivore species, widespread exotic species, and frequent observations of abnormal fish. Such problems may be directly or indirectly associated with high nutrient enrichments and the reduced flow velocity by the dam construction. The ecosystem restoration by dam removal or removal of exotic top-carnivore fish may be one of the best strategies for better lak management.

여수 연안에서 서식하는 쥐노래미(Hexagrammos otakii)의 식성 (Feeding Habits of Hexagrammos otakii off the Yoesu Coast of Korea)

  • 정진호;김희용;문성용
    • 한국수산과학회지
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    • 제55권5호
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    • pp.705-713
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    • 2022
  • The feeding habits of Hexagrammos otakii were studied by analyzing the stomach contents of 508 specimens collected from July 2009 to December 2010 off the Yeosu coast of Korea. The total length of the H. otakii specimens ranged from 10.7 to 41.5 cm. H. otakii was found to be a bottom-feeding carnivore that mainly consumed brachyura, amphipoda, but also sonsumed cephalopoda, pisces, anomura, polychaeta, and gastropoda. It was shown through relative importance analysis that the benthic share was 58.1% for brachyura, 24.5% for amphipoda, 7.5% for caridea, and 7.3% for pisces. Brachyura was the main prey item for H. otakii, occupying 35% of the stomach contents. The proportion of brachyura and amphipoda decreased with the growth of H. otakii, and their decrease paralleled the increased consumption of pisces. The shift in feeding habits to larger prey organisms with increasing fish size seems to be one of survival strategies to maximize net energy gain.

Chemical Water Quality and Fish Component Analyses in the Periods of Before- and After-the Weir Constructions in Yeongsan River

  • Kwak, Sang Do;Choi, Ji-Woong;An, Kwang-Guk
    • Journal of Ecology and Environment
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    • 제39권1호
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    • pp.99-110
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    • 2016
  • The objective of this study was to analyze chemical water quality, ecological characteristics of fish compositions, and ecosystem health before- (Bwc; 2008-2009) and after-the weir construction (Awc; 2011-2012) at Juksan Weir and Seungchon Weir of Yeongsan River watershed. Suspended solids (SS) and chlorophyll-a (Chl-a) in Juksan Weir increased, whereas nutrients such as total nitrogen (TN) and total phosphorus (TP) decreased in the epilimnetic water. In Juksan and Seungchon weirs, fish species distribution analysis in the periods of Bwc and Awc showed that sensitive species were rare and tolerant species were dominant in the community. In the analysis of trophic guild, relative abundance of carnivore species are increased to 22% and 12%, respectively, after the constructions of Seungchon Weir and Juksan Weir. Mann-Whitney U-tests of nonparametric statistical analysis indicated that omnivore and carnivore species had significant differences (p < 0.05) between the Bwc and Awc. The massive population growth of an exotic species, Micropterus salmoides, was evident in Seungchon Weir to influence on the structures of fish communities. The model values of mean Index of Biological Integrity (IBI), based on fish assemblages, were < 15, which indicates "poor" condition in the river health, and the significant difference of IBI values was not found between the Bwc and Awc.

부산 주변 해역에 출현하는 황돔(Dentex tumifrons)의 식성 (Feeding Habits of Yellowback Seabream, Dentex tumifrons, in the Coastal Waters of Busan, Korea)

  • 김하원;박주면;백근욱;허성회
    • 한국어류학회지
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    • 제24권1호
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    • pp.35-40
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    • 2012
  • 부산 연안해역에서 2004년 1월부터 12월까지 매월 1회 채집된 황돔($Dentex$ $tumifrons$) 317개체의 식성을 조사하였다. 황돔의 표준체장(SL)은 10.2~27.8 cm 범위였다. 황돔의 위내용물을 분석한 결과 새우류(Macrura)를 주로 섭식하는 육식성어종(carnivore)이었다. 새우류 다음으로 어류(Pisces)가 중요한 먹이생물이었다. 그 다음으로 집게류(Anomura), 단각류(Amphipoda), 게류(Brachyura), 극피동물(Echinodermata), 두족류(Cephalopoda) 순으로 섭식하였다. 그 외, 갯지렁이류(Polychaeta), 갯가재류(Stomatopoda), 이매패류(Bivalivia), 패충류 (Ostracoda), 곤쟁이류 (Mysidacea) 등을 섭식하였지만 그 양은 매우 적었다. 가장 작은 크기군인 10~13 cm의 크기군에서는 새우류가 가장 중요한 먹이생물로 나타났다. 13~16 cm 크기군에서는 새우류의 비율이 감소한 반면, 집게류, 극피동물, 게류의 비율이 증가하였다. 체장이 증가함에 따라 새우류, 집게류, 극피동물, 게류의 비율이 감소한 반면, 어류의 비율은 계속 증가하였다. 어류는 체장 25 cm 이상의 크기군에서는 위내용물의 대부분을 차지하였다.

그물코쥐치의 먹이습성의 일별 변화: 낮은 잡식성, 밤은 육식성 (Diel Changes in the Diet of Rudarius ercodes: A Diurnal Omnivore and Nocturnal Carnivore)

  • 곽석남;허성회;최창근
    • 한국어류학회지
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    • 제18권3호
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    • pp.178-183
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    • 2006
  • 진동만 잘피밭에 서식하는 그물코쥐치의 먹이습성의 일별변화를 조사하였다. 출현한 그물코쥐치는 1.6~4.3 cm SL의 범위였으며, 주요 먹이생물은 단각류에 속하는 옆새우류, 잘피, 갯지렁이류, 그리고 미삭동물이었다. 그물코쥐치의 먹이습성의 일별변화는 뚜렷하였다. 낮에는 잘피와 옆새우류를 주로 먹은 잡식성을, 밤에는 옆새우류, 갯지렁이류, 그리고 미삭동물을 주로 먹는 육식성을 나타내었다. 이와 같은 결과는 낮보다는 밤에 이들 먹이생물의 활동이 활발하여 그물코쥐치가 섭이하기가 용이하였던 것으로 판단된다. 또한 그물코쥐치의 섭이활동은 저조보다는 고조에 활발하였다.

볼락, Sebastes inermis 의 섭식상태 (Feeding Ecology of Black Rockfish, Sebastes inermis)

  • 김종관;강용주
    • 한국수산과학회지
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    • 제32권5호
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    • pp.637-641
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    • 1999
  • 본 연구는 볼락, Sebastes inermis의 섭식생태를 파악하기 위하여 경남 사천시 신수도 연안에서 채집된 볼락의 섭식활동 주기와 위내용물을 분석하였다. 어체표본은 1984년 2월부터 1985년 5월사이에 낚시, 자망, 소형기선저인망, 낭장망 등으로서 채집하였다. 볼락의 표본은 0세군부터 4세군까지 채집되었으며, 이들의 주 섭식활동 시간대는 봄, 여름의 경우 이른 아침과 늦은 오후였고, 가을과 겨울에는 특별한 섭식활동 시간대 없이 1$\~$2시간 주기로 간헐적인 섭식활동을 하였다. 이들의 먹이생물은 어류의 연령과 계절에 따라 달랐지만, 주요 먹이생물은 요각류(copepods), 옆새우류(gammarids), 카프렐라류 (caprellids), 생 이류 (carideans), 다모류(polychaees), 단미류 (brachyurans) 등이었다 0세군은 요각류를 주먹이로 섭식하였고, 1세군 이상은 옆새우류를 주 먹이로 이용하였다. 먹이생물의 다양도와 균등도는 어체의 연령이 증가할수록 높았다. 본 종의 섭식기관, 소화기관의 형태, 먹이생물의 종류 등을 고려하였을 때, 볼락은 소형 갑각류를 주 먹이생물로 이용하는 육식성이면서 시각섭식성 식성을 지닌 어류인 것으로 판단되었다.

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