| Study on the feeding habit and trophic level of main economic invertebrates in the Huanghai Sea |
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| 作者姓名： | Cheng Jisheng Zhu Jinsheng Jiang Weimin |
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| 作者单位： | Huanghai Sea Fisheries Research Institute, Qingdao 266071, China;Huanghai Sea Fisheries Research Institute, Qingdao 266071, China;Huanghai Sea Fisheries Research Institute, Qingdao 266071, China |
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| 摘 要： | INTRODUCTIONTheHuanghaiSeaisrichwithfisheryspecies.Apartfromfishes,thereisagreatnumberofinvertebrates,ofwhichmanyareofcommercialimportance,playinganimportantroleintheHuanghaiSeafishery.Twogroupsofinvertebrates,CrustaceaandCephalopodawerelandedduringthetrawlsurveysintheHuanghaiSea.CrustaceaincludedPenaeusorientalis,Trachypenaeuscurvirostris,Crangonaffinis,Mitatynaeopsisdalei,Palaemongravieri,Portunustrituberculatus,Charybdisbimaculata,Oratosquillaoratoria,etc.andCephalopodainclucded…
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| 关 键 词： | Huanghai Sea invertebrates feeding habit trophic level |
| 收稿时间： | 1997/12/20 0:00:00 |
| 修稿时间： | 1998/1/25 0:00:00 |
Study on the feeding habit and trophic level of main economic invertebrates in the Huanghai Sea |
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| Cheng Jisheng,Zhu Jinsheng,Jiang Weimin.Study on the feeding habit and trophic level of main economic invertebrates in the Huanghai Sea[J].Acta Oceanologica Sinica,1999,18(1):117-126. |
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| Authors: | Cheng Jisheng Zhu Jinsheng and Jiang Weimin |
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| Institution: | Huanghai Sea Fisheries Research Institute, Qingdao 266071, China |
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| Abstract: | The stomach contents of 14 main invertebrates in the Huanghai Sea are analyzed. The results indicate that: (1) the examined predator species were all omnivore with wide md range, showing no obvious selection for specific fed items, (2) on the basis of their ecological habitat, the predators could be classified into 5 different types, i.e., benthoelagic and planktopelagic animals, nektopelagic and planktopelagic animals, benthopelagic animals, nektopelagic and benthopelagic animals, and nektopelagic animals and (3) the trophic level of the 11 predator species, including Crangon affinis, Palaemon gravieri, Penaeus orientalis, Trachypenaeus curvirostris, Metapenaeopsis dalei, Portunus trituberculatus, Charybdis bimaculata, Oratosquilta oratoria, Sepia andreana, Loligo beka and L. japonica ranged from 2. 30 to 2. 72, belonging to low carnivore (trophic level: 2. 0~ 2. 8), whereas that of the other 3 predator species, including Sepia esculenta, Sepiella maindroni and Todarodes pacificus were in the range of 2. 86~ 2. 97, belonging to mid-carnivore (trophic level: 2. 9 ~3. 4). |
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| Keywords: | Huanghai Sea invertebrates feeding habit trophic level |
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