Pub Date : 2017-12-31DOI: 10.3796/KSFT.2017.53.4.430
Su-Hyung Kim, Hyung-suk Kim, Il–Kwon Kang, Wook-Sung Kim
{"title":"An analysis on marine casualties of fishing vessel by FTA method","authors":"Su-Hyung Kim, Hyung-suk Kim, Il–Kwon Kang, Wook-Sung Kim","doi":"10.3796/KSFT.2017.53.4.430","DOIUrl":"https://doi.org/10.3796/KSFT.2017.53.4.430","url":null,"abstract":"","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121474691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-30DOI: 10.3796/KSFT.2017.53.3.293
Hwangpil Park, Young-Bok Kim
In this study, a winch and load motion control system design method is introduced. Especially, the winch and load (moving cart) are connected with long wire rope which is extended to few kilometers long. Therefore, the rope length changes such that many dynamic parameter values are changed as well by winding and releasing the rope from the winch system. In this paper, the authors designed the control system by considering the real time parameter variation to occupy and keep good control performance continuously. The effectiveness of introduced method was evaluated by simulation results.
{"title":"A study on winch and load motion control system design considering dynamic parameter variation","authors":"Hwangpil Park, Young-Bok Kim","doi":"10.3796/KSFT.2017.53.3.293","DOIUrl":"https://doi.org/10.3796/KSFT.2017.53.3.293","url":null,"abstract":"In this study, a winch and load motion control system design method is introduced. Especially, the winch and load (moving cart) are connected with long wire rope which is extended to few kilometers long. Therefore, the rope length changes such that many dynamic parameter values are changed as well by winding and releasing the rope from the winch system. In this paper, the authors designed the control system by considering the real time parameter variation to occupy and keep good control performance continuously. The effectiveness of introduced method was evaluated by simulation results.","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129937008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-09-30DOI: 10.3796/KSFT.2017.53.3.266
Jong-deok Choi, D. Ryu, Mi-hee Lee
The maximum sustained yield ( ) of shellfish caught through dredge fishery was 7,250 to 7,490 MT from 1990 to 1999, which was not affected by the construction of the Saemangeum Dike. The MSY from 2000 to 2016, under the influence of the dike, was 1,716 to 1,776 MT when the total annual fish catch was 1,000 MT or more, and 289 to 336 MT when it was less than 1,000 MT. The construction of the Saemangeum Dike led to a decrease in the catch volume of the offshore dredge fishery in Jeollabuk-do, to 4.2 to 23.7% of that before its construction. The allowable biological catch ( ) was estimated to be 313 to 1,532 MT per year, which was about 72.3 to 94.3% less than before the construction of Saemangeum Dike. Currently, the dredge fishery in Jeollabuk-do relies on comb pen shells. For fishery management, the catch per vessel should be set at 51.0 MT/year or less, and the number of fishing vessels should be reduced to 22 as quickly as possible. Besides, in the long term, the number of current fishing vessels should be reduced to less than half in consideration of the comb pen shell collecting period in Jeollabuk-do.
{"title":"Influence on the catch of shellfish by offshore dredge fishery according to change fishing area to the construction of the Samangeum Dike in Jeollabuk-do, Korea","authors":"Jong-deok Choi, D. Ryu, Mi-hee Lee","doi":"10.3796/KSFT.2017.53.3.266","DOIUrl":"https://doi.org/10.3796/KSFT.2017.53.3.266","url":null,"abstract":"The maximum sustained yield ( ) of shellfish caught through dredge fishery was 7,250 to 7,490 MT from 1990 to 1999, which was not affected by the construction of the Saemangeum Dike. The MSY from 2000 to 2016, under the influence of the dike, was 1,716 to 1,776 MT when the total annual fish catch was 1,000 MT or more, and 289 to 336 MT when it was less than 1,000 MT. The construction of the Saemangeum Dike led to a decrease in the catch volume of the offshore dredge fishery in Jeollabuk-do, to 4.2 to 23.7% of that before its construction. The allowable biological catch ( ) was estimated to be 313 to 1,532 MT per year, which was about 72.3 to 94.3% less than before the construction of Saemangeum Dike. Currently, the dredge fishery in Jeollabuk-do relies on comb pen shells. For fishery management, the catch per vessel should be set at 51.0 MT/year or less, and the number of fishing vessels should be reduced to 22 as quickly as possible. Besides, in the long term, the number of current fishing vessels should be reduced to less than half in consideration of the comb pen shell collecting period in Jeollabuk-do.","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115972164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-05-31DOI: 10.3796/KSFT.2012.48.2.147
Il–Kwon Kang, Min-seok Kim, Byung-Soo Park, Jin-Keun Hong, Seong-Jae Jeong, Sang–Jun Ham
In head sea , a ship has mainly the longitudinal motion such as vertical acceleration and pitch . In that case ,the motion characteristics of a ship will have changed as the location different from each of place verticallyand horizontally on board . The author carried out an experiment about the ship ’s vertical acceleration andpitch according to the location for the head sea , and analyzed the data with the aid of the statistical andspectral analyzing method to get the motion characteristics of the vessels . The response of verticalacceleration and pitch not deeply depend on the decks vertically , but displayed the relative big differentvalue horizontally even if same deck . The biggest response of vertical acceleration and pitch among theaccommodations was shown at scientist room , but the value of it not reached to the minimum requirement ofISO 2631-1 for working on board .Keywords: Head sea , Longitudinal motion , Vertical Acceleration , Pitch , Motion characteristics .
{"title":"Longitudinal motion characteristics of a ship according to the location","authors":"Il–Kwon Kang, Min-seok Kim, Byung-Soo Park, Jin-Keun Hong, Seong-Jae Jeong, Sang–Jun Ham","doi":"10.3796/KSFT.2012.48.2.147","DOIUrl":"https://doi.org/10.3796/KSFT.2012.48.2.147","url":null,"abstract":"In head sea , a ship has mainly the longitudinal motion such as vertical acceleration and pitch . In that case ,the motion characteristics of a ship will have changed as the location different from each of place verticallyand horizontally on board . The author carried out an experiment about the ship ’s vertical acceleration andpitch according to the location for the head sea , and analyzed the data with the aid of the statistical andspectral analyzing method to get the motion characteristics of the vessels . The response of verticalacceleration and pitch not deeply depend on the decks vertically , but displayed the relative big differentvalue horizontally even if same deck . The biggest response of vertical acceleration and pitch among theaccommodations was shown at scientist room , but the value of it not reached to the minimum requirement ofISO 2631-1 for working on board .Keywords: Head sea , Longitudinal motion , Vertical Acceleration , Pitch , Motion characteristics .","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116509323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-05-31DOI: 10.3796/KSFT.2012.48.2.107
Jong Hee Lee, Jae Bong Lee, C. Zhang, Sukyung Kang, Y. Choi, Dong Woo Lee
KEH;7D B7H=; FKHI; I;?D; ;HO 97J9>;I 9>K8 C79A;H;B, I7H:?D; , @79A C79A;H;B, SF7D?I> C79A;H;B, ;J9 .M>?9> 7H; C7?DBO F;B7=?9 IF;9?;I. T>; FHEFEHJ?ED E K8 C79A;H;B M7I 60% EL;H ?D KEH;7D B7H=; FKHI;I;?D; ;HO . S;7 IKH ; IEKJ>;HD I;7 E ;H; ?I C7?DBO ?D= =HEKD:I E 7J F M7H: CEL;C;DJ J>7J J>; 9;DJ;H E ?D= =HEKD:I E K8 C79A;H;B 8O KEH;7D B7H=; FKHI; I;?D; ;HO CEL;: 4.57 AC /OH. IJ M7I H7F?:BODEHJ>M7H: CEL;C;DJ 78EKJ 7.1 AC /OH, 8.13 AC /OH JE CEL; SF7D?I> C79A;H;B 7D: 8BK; ?D==HEKD:I. HEM;L;H, J>; ?D= =HEKD:I E ;H IEKJ> ?D J>; 2000 IJ>7D J>;1980 I. C7J9> E ;H; M7I 7I?=D? E ; ?D= =HEKD:I E ;HO , C>K8 C79A;H;B, BBK;
{"title":"A study on fluctuation of the fishing grounds of target fishes by the Korean large purse seine fishery","authors":"Jong Hee Lee, Jae Bong Lee, C. Zhang, Sukyung Kang, Y. Choi, Dong Woo Lee","doi":"10.3796/KSFT.2012.48.2.107","DOIUrl":"https://doi.org/10.3796/KSFT.2012.48.2.107","url":null,"abstract":"KEH;7D B7H=; FKHI; I;?D; ;HO 97J9>;I 9>K8 C79A;H;B, I7H:?D; , @79A C79A;H;B, SF7D?I> C79A;H;B, ;J9 .M>?9> 7H; C7?DBO F;B7=?9 IF;9?;I. T>; FHEFEHJ?ED E K8 C79A;H;B M7I 60% EL;H ?D KEH;7D B7H=; FKHI;I;?D; ;HO . S;7 IKH ; IEKJ>;HD I;7 E ;H; ?I C7?DBO ?D= =HEKD:I E 7J F M7H: CEL;C;DJ J>7J J>; 9;DJ;H E ?D= =HEKD:I E K8 C79A;H;B 8O KEH;7D B7H=; FKHI; I;?D; ;HO CEL;: 4.57 AC /OH. IJ M7I H7F?:BODEHJ>M7H: CEL;C;DJ 78EKJ 7.1 AC /OH, 8.13 AC /OH JE CEL; SF7D?I> C79A;H;B 7D: 8BK; ?D==HEKD:I. HEM;L;H, J>; ?D= =HEKD:I E ;H IEKJ> ?D J>; 2000 IJ>7D J>;1980 I. C7J9> E ;H; M7I 7I?=D? E ; ?D= =HEKD:I E ;HO , C>K8 C79A;H;B, BBK;","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115059872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-05-31DOI: 10.3796/KSFT.2012.48.2.174
Sung-Boo Kim, Jong-Kyu Lee
A new absorption material, cellulose sponge soaked in cement, was made for anechoic water tank and its acoustical properties were investigated by pulse methods. The sound absorption coefficient a (dB/cm) of the material was obtained in the frequency range of 40 〜120kHz from the echo reduction ER (dB) and insertion loss IL (dB) data. The result was averagely 1.8dB/cm higher than the sound absorption coefficient a (dB/cm) of cork-filled rubber which is one of the most effective absorption materials. The wedge (1.2 〜5.0cm long) type absorption tiles were made with this new material. The echo reduction ER (dB) of the absorption tile with 5.0cm wedge measured in water tank was higher than 20dB in the experimental frequency range.
{"title":"A study on the new absorption material for anechoic water tank","authors":"Sung-Boo Kim, Jong-Kyu Lee","doi":"10.3796/KSFT.2012.48.2.174","DOIUrl":"https://doi.org/10.3796/KSFT.2012.48.2.174","url":null,"abstract":"A new absorption material, cellulose sponge soaked in cement, was made for anechoic water tank and its acoustical properties were investigated by pulse methods. The sound absorption coefficient a (dB/cm) of the material was obtained in the frequency range of 40 〜120kHz from the echo reduction ER (dB) and insertion loss IL (dB) data. The result was averagely 1.8dB/cm higher than the sound absorption coefficient a (dB/cm) of cork-filled rubber which is one of the most effective absorption materials. The wedge (1.2 〜5.0cm long) type absorption tiles were made with this new material. The echo reduction ER (dB) of the absorption tile with 5.0cm wedge measured in water tank was higher than 20dB in the experimental frequency range.","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123666030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-05-31DOI: 10.3796/KSFT.2012.48.2.165
Donggil Lee, Young-Su Yang, Seong-wook Park, Bongjin Cha, Guo-Cheng Xu, Jong-Rak Kim
Nationally , flatfish vaccination has been performed manually , and is a laborious and time -consumingprocedure with low accuracy . The handling requirement also makes it prone to contamination . With a viewto eliminating these drawbacks , we designed an automatic vaccine system in which the injection is deliveredby aCartesian coordinate robot guided by avision system . The automatic vaccine injection system is drivenby an injection site location algorithm that uses atemplate -matching technique . The proposed algorithm wasdesigned to derive the time and possible angles of injection by comparing asearch area with atemplate . Thealgorithm is able to vaccinate various sizes of flatfish , even when they are loaded at different angles . Wevalidated the performance of the proposed algorithm by analyzing the injection error under randomlygenerated loading angles . The proposed algorithm allowed an injection rate of 2000 per hour on average .Vaccination of flatfish with a body length of up to 500 mm was possible , even when the orientation of thefish was random . The injection errors in various sizes of flatfish were very small, ranging from 0 to 0.6 mm .Keywords : Vision system , Cartesian coordinate robot, Flatfish , Template matching
{"title":"Development of a vaccine automation injection system for flatfish using a template matching","authors":"Donggil Lee, Young-Su Yang, Seong-wook Park, Bongjin Cha, Guo-Cheng Xu, Jong-Rak Kim","doi":"10.3796/KSFT.2012.48.2.165","DOIUrl":"https://doi.org/10.3796/KSFT.2012.48.2.165","url":null,"abstract":"Nationally , flatfish vaccination has been performed manually , and is a laborious and time -consumingprocedure with low accuracy . The handling requirement also makes it prone to contamination . With a viewto eliminating these drawbacks , we designed an automatic vaccine system in which the injection is deliveredby aCartesian coordinate robot guided by avision system . The automatic vaccine injection system is drivenby an injection site location algorithm that uses atemplate -matching technique . The proposed algorithm wasdesigned to derive the time and possible angles of injection by comparing asearch area with atemplate . Thealgorithm is able to vaccinate various sizes of flatfish , even when they are loaded at different angles . Wevalidated the performance of the proposed algorithm by analyzing the injection error under randomlygenerated loading angles . The proposed algorithm allowed an injection rate of 2000 per hour on average .Vaccination of flatfish with a body length of up to 500 mm was possible , even when the orientation of thefish was random . The injection errors in various sizes of flatfish were very small, ranging from 0 to 0.6 mm .Keywords : Vision system , Cartesian coordinate robot, Flatfish , Template matching","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117086893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-05-31DOI: 10.3796/KSFT.2012.48.2.128
Jae Bong Lee, T. Oh, I. Yeon, Byung-Yeob Kim, H. Shin, Bokyu Hwang, Kyung-Hoon Lee, Yoo-Won， Lee
Hybrid surveys using hydroacoustic and fish sampling gears such as trammel net , trap were conducted toinvestigate total biomass , distribution and dominant fish species of the demersal fishes in the marineranching area (MRA ) of Jeju . Four surveys were carried out in June , August , October and November using38 kHz quantitative echo sounder . Catch data using trammel net and trap were used to calculate biomass andto examine dominant fish species . Fish schools were mainly detected in the waters of 20 meters below andaround Chagwido waters . By the result of fishing experiments , fish species living in MRA of Jeju wereabout 40 species , dominant fish species of a detectable fish such as Family Sparidae and FamilyMonacanthidae etc . were identified 59.4~68.8% of total biomass . Based on the hydroacoustic data , fishlength -weight function and target strength information , mean density of the demersal fish estimated were as
{"title":"Estimation of demersal fish biomass using hydroacoustic and catch data in the marine ranching area (MRA ) of Jeju","authors":"Jae Bong Lee, T. Oh, I. Yeon, Byung-Yeob Kim, H. Shin, Bokyu Hwang, Kyung-Hoon Lee, Yoo-Won， Lee","doi":"10.3796/KSFT.2012.48.2.128","DOIUrl":"https://doi.org/10.3796/KSFT.2012.48.2.128","url":null,"abstract":"Hybrid surveys using hydroacoustic and fish sampling gears such as trammel net , trap were conducted toinvestigate total biomass , distribution and dominant fish species of the demersal fishes in the marineranching area (MRA ) of Jeju . Four surveys were carried out in June , August , October and November using38 kHz quantitative echo sounder . Catch data using trammel net and trap were used to calculate biomass andto examine dominant fish species . Fish schools were mainly detected in the waters of 20 meters below andaround Chagwido waters . By the result of fishing experiments , fish species living in MRA of Jeju wereabout 40 species , dominant fish species of a detectable fish such as Family Sparidae and FamilyMonacanthidae etc . were identified 59.4~68.8% of total biomass . Based on the hydroacoustic data , fishlength -weight function and target strength information , mean density of the demersal fish estimated were as","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127929222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-05-31DOI: 10.3796/KSFT.2012.48.2.137
Dae-jae Lee
Black porgy and fat greenling are commercially important fish species due to the continuously increasing demand in Korea. When estimating acoustically the fish length by a fish sizing echo sounder, it is of crucial importance to know the target strength (TS) to length dependence. In relation to these needs, the target strength experiments for live fishes were conducted in an acrylic salt water tank using two split-beam echo sounders operating at 70 and 120kHz. The target strength under well-controlled laboratory conditions was simultaneously measured with the swimming movement by digital video recording (DVR) system and analyzed as a function of fish length (L) and frequency (or wavelength ). Equations of the form TS-alog (L)+blog (1)+c were derived for their TS-length dependence. The best fit regression of TS on fork length for black porgy was TS
{"title":"Fish length dependence of target strength for black porgy and fat greenling at two frequencies of 70 and 120kHz","authors":"Dae-jae Lee","doi":"10.3796/KSFT.2012.48.2.137","DOIUrl":"https://doi.org/10.3796/KSFT.2012.48.2.137","url":null,"abstract":"Black porgy and fat greenling are commercially important fish species due to the continuously increasing demand in Korea. When estimating acoustically the fish length by a fish sizing echo sounder, it is of crucial importance to know the target strength (TS) to length dependence. In relation to these needs, the target strength experiments for live fishes were conducted in an acrylic salt water tank using two split-beam echo sounders operating at 70 and 120kHz. The target strength under well-controlled laboratory conditions was simultaneously measured with the swimming movement by digital video recording (DVR) system and analyzed as a function of fish length (L) and frequency (or wavelength ). Equations of the form TS-alog (L)+blog (1)+c were derived for their TS-length dependence. The best fit regression of TS on fork length for black porgy was TS","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121156753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-05-31DOI: 10.3796/KSFT.2012.48.2.118
G. Baeck, S. Huh, J. Park
was examined using 637 specimenscollected monthly from January to December 2006 in the coastal waters off Gori, Korea. The specimensranged in standard length (cm , SL ) from 2.9 to 11.4 cm for female, 2.7 to 10.5 cm for male. Thegonadosomatic index (GSI) of female was highest in September and decreased until December, and thespawning season lasted from August to November. The monthly sex was not different significantly (
{"title":"Reproductive ecology of the glowbelly, Acropoma japonicum (Perciformes: Acropomatidae) in the coastal waters off Gori, Korea","authors":"G. Baeck, S. Huh, J. Park","doi":"10.3796/KSFT.2012.48.2.118","DOIUrl":"https://doi.org/10.3796/KSFT.2012.48.2.118","url":null,"abstract":"was examined using 637 specimenscollected monthly from January to December 2006 in the coastal waters off Gori, Korea. The specimensranged in standard length (cm , SL ) from 2.9 to 11.4 cm for female, 2.7 to 10.5 cm for male. Thegonadosomatic index (GSI) of female was highest in September and decreased until December, and thespawning season lasted from August to November. The monthly sex was not different significantly (","PeriodicalId":211073,"journal":{"name":"Bulletin of The Korean Society of Fisheries Technology","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123236505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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