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Acoustic Observation of the Spawning Aggregation of Megalobrama hoffmanni in the Pearl River
Tan, Xichang1,2,3; Li, Xinghui1; Chang, Jianbo4,5; Tao, Jiangpin4,5; Tan, XC, Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Guangzhou 510380, Guangdong, Peoples R China
2009-06-01
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
ISSN0270-5060
Volume24Issue:2Pages:293-299
AbstractUsing the Simrad EY60 split-beam echosounder, the spawning aggregation of Megalobrama hoffmanni was observed at the Luopang spawning grounds in the Pearl River, China, from April 19 to 22 2006. With the boat anchored, the transducer was stationary and was aimed horizontally to monitor the migration of the fish. Using fishery information, the echoes of M. hoffmanni were identified. The results showed that the spawning aggregation of M. hoffmanni at Luopang was obvious and easy to discriminate. The target strength of M hoffmanni in situ ranged from -33.8 dB to -52.3 dB (average 42.2dB). The aggregation of M. hoffmanni was obviously affected by light. With a speed of -0.31 m/s, 88.9% of the spawning stocks migrated upstream. Most M hoffmanni were recorded moving near the bottom. Their distinctive acoustic signature demonstrated the suitability of the stationary acoustic observation for M. hoffmanni identification and discrimination.; Using the Simrad EY60 split-beam echosounder, the spawning aggregation of Megalobrama hoffmanni was observed at the Luopang spawning grounds in the Pearl River, China, from April 19 to 22 2006. With the boat anchored, the transducer was stationary and was aimed horizontally to monitor the migration of the fish. Using fishery information, the echoes of M. hoffmanni were identified. The results showed that the spawning aggregation of M. hoffmanni at Luopang was obvious and easy to discriminate. The target strength of M hoffmanni in situ ranged from -33.8 dB to -52.3 dB (average 42.2dB). The aggregation of M. hoffmanni was obviously affected by light. With a speed of -0.31 m/s, 88.9% of the spawning stocks migrated upstream. Most M hoffmanni were recorded moving near the bottom. Their distinctive acoustic signature demonstrated the suitability of the stationary acoustic observation for M. hoffmanni identification and discrimination.
SubtypeArticle
KeywordFixed-location Fish Echosounder Migration Patterns Behavior
Department[Tan, Xichang; Li, Xinghui] Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Guangzhou 510380, Guangdong, Peoples R China; [Tan, Xichang] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Tan, Xichang] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Chang, Jianbo; Tao, Jiangpin] Minist Water Resources, Inst Hydroecol, Wuhan 430079, Peoples R China; [Chang, Jianbo; Tao, Jiangpin] Chinese Acad Sci, Wuhan 430079, Peoples R China
Subject AreaEcology ; Limnology
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Limnology
WOS IDWOS:000265956400014
WOS KeywordFIXED-LOCATION ; FISH ; ECHOSOUNDER ; MIGRATION ; PATTERNS ; BEHAVIOR
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7750
Collection期刊论文
Corresponding AuthorTan, XC, Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Guangzhou 510380, Guangdong, Peoples R China
Affiliation1.Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Guangzhou 510380, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
4.Minist Water Resources, Inst Hydroecol, Wuhan 430079, Peoples R China
5.Chinese Acad Sci, Wuhan 430079, Peoples R China
Recommended Citation
GB/T 7714
Tan, Xichang,Li, Xinghui,Chang, Jianbo,et al. Acoustic Observation of the Spawning Aggregation of Megalobrama hoffmanni in the Pearl River[J]. JOURNAL OF FRESHWATER ECOLOGY,2009,24(2):293-299.
APA Tan, Xichang,Li, Xinghui,Chang, Jianbo,Tao, Jiangpin,&Tan, XC, Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Guangzhou 510380, Guangdong, Peoples R China.(2009).Acoustic Observation of the Spawning Aggregation of Megalobrama hoffmanni in the Pearl River.JOURNAL OF FRESHWATER ECOLOGY,24(2),293-299.
MLA Tan, Xichang,et al."Acoustic Observation of the Spawning Aggregation of Megalobrama hoffmanni in the Pearl River".JOURNAL OF FRESHWATER ECOLOGY 24.2(2009):293-299.
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