Reproductive biology of Lepidocephalichthys guntea: a key conservation approach considering environmental factors in Payra River, Bangladesh
The guntea loach, Lepidocephalichthys guntea , is categorically common freshwater fish in Southeast Asia. Current study is the first elucidation on the reproductive feature of L. guntea including population structure, sex ratio (SR), size at first maturity ( L m ), breeding period, and condition fac...
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| creator | Saha, Newton Roy, Prosun Sarmin, Most. Shakila Iqbal, Md. Asif Hasan, Md. Hasibul Hossain, Md. Moazzem Hossain, Md. Yeamin |
| description | The guntea loach,
Lepidocephalichthys guntea
, is categorically common freshwater fish in Southeast Asia. Current study is the first elucidation on the reproductive feature of
L. guntea
including population structure, sex ratio (SR), size at first maturity (
L
m
), breeding period, and condition factor, emphasizing on the effect of environmental factors on reproduction of this fish in the Payra River (Southern Bangladesh) during July 2021 to June 2022. Using various conventional gears, 1128 individuals (534 males and 594 females) have been collected. Total length (TL), standard length (SL), and body weight (BW) of each fish were measured. Ovaries were cautiously dissected, removed, and precisely weighed. TL ranges from 4.6 to 9.7 cm (BW = 0.7–9.27 g) for male and 4.6–10.3 cm (BW = 0.8–10.75 g) for female. Both male (47.34%) and female (52.66%) populations were the leading group in 7.00–7.99 cm TL. Overall SR was not notably altered from anticipated value of 1:1 (male:female = 1:1.11). Nonetheless, monthly variations of SR specified females were considerably outnumbered males in each month excluding March–May.
L
m
range was 6.4–7.0 cm, so larger than
L
m
is recommended to exploit. Monthly changes in GSI indicated that the main spawning season was from March to June. The spawning season was substantially correlated with rainfall, nonetheless with temperature. Additionally, relative weight indicated that habitat was imbalanced with higher predators. A fishing ban is recommended during peak spawning to protect
L. guntea
in the Payra River and its surroundings based on current research. |
| doi_str_mv | 10.1007/s10661-024-12753-5 |
| format | Article |
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Lepidocephalichthys guntea
, is categorically common freshwater fish in Southeast Asia. Current study is the first elucidation on the reproductive feature of
L. guntea
including population structure, sex ratio (SR), size at first maturity (
L
m
), breeding period, and condition factor, emphasizing on the effect of environmental factors on reproduction of this fish in the Payra River (Southern Bangladesh) during July 2021 to June 2022. Using various conventional gears, 1128 individuals (534 males and 594 females) have been collected. Total length (TL), standard length (SL), and body weight (BW) of each fish were measured. Ovaries were cautiously dissected, removed, and precisely weighed. TL ranges from 4.6 to 9.7 cm (BW = 0.7–9.27 g) for male and 4.6–10.3 cm (BW = 0.8–10.75 g) for female. Both male (47.34%) and female (52.66%) populations were the leading group in 7.00–7.99 cm TL. Overall SR was not notably altered from anticipated value of 1:1 (male:female = 1:1.11). Nonetheless, monthly variations of SR specified females were considerably outnumbered males in each month excluding March–May.
L
m
range was 6.4–7.0 cm, so larger than
L
m
is recommended to exploit. Monthly changes in GSI indicated that the main spawning season was from March to June. The spawning season was substantially correlated with rainfall, nonetheless with temperature. Additionally, relative weight indicated that habitat was imbalanced with higher predators. A fishing ban is recommended during peak spawning to protect
L. guntea
in the Payra River and its surroundings based on current research.</description><identifier>ISSN: 0167-6369</identifier><identifier>ISSN: 1573-2959</identifier><identifier>EISSN: 1573-2959</identifier><identifier>DOI: 10.1007/s10661-024-12753-5</identifier><identifier>PMID: 38879840</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Animal morphology ; Animals ; Atmospheric Protection/Air Quality Control/Air Pollution ; Bangladesh ; Body weight ; Condition factor ; Conservation of Natural Resources ; Cypriniformes - physiology ; Earth and Environmental Science ; Ecology ; Ecotoxicology ; Environment ; Environmental effects ; Environmental factors ; Environmental Management ; Environmental Monitoring ; Female ; Females ; Fish ; Fish reproduction ; Fishing ; Freshwater ; Freshwater fish ; Freshwater fishes ; Gonadosomatic index ; Inland water environment ; Lepidocephalichthys guntea ; Male ; Males ; Monitoring/Environmental Analysis ; Monthly variations ; Moratoria ; Ovaries ; Population structure ; Predators ; Rainfall ; Reproduction ; Rivers ; Sex Ratio ; Spawning ; Spawning seasons</subject><ispartof>Environmental monitoring and assessment, 2024-07, Vol.196 (7), p.622, Article 622</ispartof><rights>The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c256t-44d2de406c1481e80cdf150289d8532a790753fb8a80fef6ebac24db8af4a2bd3</cites><orcidid>0000-0002-4398-7437 ; 0000-0002-8601-4010 ; 0000-0003-2129-6923 ; 0000-0001-6381-0199 ; 0000-0002-8183-7296 ; 0000-0002-9044-251X ; 0000-0003-1656-599X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10661-024-12753-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10661-024-12753-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38879840$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Saha, Newton</creatorcontrib><creatorcontrib>Roy, Prosun</creatorcontrib><creatorcontrib>Sarmin, Most. Shakila</creatorcontrib><creatorcontrib>Iqbal, Md. Asif</creatorcontrib><creatorcontrib>Hasan, Md. Hasibul</creatorcontrib><creatorcontrib>Hossain, Md. Moazzem</creatorcontrib><creatorcontrib>Hossain, Md. Yeamin</creatorcontrib><title>Reproductive biology of Lepidocephalichthys guntea: a key conservation approach considering environmental factors in Payra River, Bangladesh</title><title>Environmental monitoring and assessment</title><addtitle>Environ Monit Assess</addtitle><addtitle>Environ Monit Assess</addtitle><description>The guntea loach,
Lepidocephalichthys guntea
, is categorically common freshwater fish in Southeast Asia. Current study is the first elucidation on the reproductive feature of
L. guntea
including population structure, sex ratio (SR), size at first maturity (
L
m
), breeding period, and condition factor, emphasizing on the effect of environmental factors on reproduction of this fish in the Payra River (Southern Bangladesh) during July 2021 to June 2022. Using various conventional gears, 1128 individuals (534 males and 594 females) have been collected. Total length (TL), standard length (SL), and body weight (BW) of each fish were measured. Ovaries were cautiously dissected, removed, and precisely weighed. TL ranges from 4.6 to 9.7 cm (BW = 0.7–9.27 g) for male and 4.6–10.3 cm (BW = 0.8–10.75 g) for female. Both male (47.34%) and female (52.66%) populations were the leading group in 7.00–7.99 cm TL. Overall SR was not notably altered from anticipated value of 1:1 (male:female = 1:1.11). Nonetheless, monthly variations of SR specified females were considerably outnumbered males in each month excluding March–May.
L
m
range was 6.4–7.0 cm, so larger than
L
m
is recommended to exploit. Monthly changes in GSI indicated that the main spawning season was from March to June. The spawning season was substantially correlated with rainfall, nonetheless with temperature. Additionally, relative weight indicated that habitat was imbalanced with higher predators. A fishing ban is recommended during peak spawning to protect
L. guntea
in the Payra River and its surroundings based on current research.</description><subject>Animal morphology</subject><subject>Animals</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Bangladesh</subject><subject>Body weight</subject><subject>Condition factor</subject><subject>Conservation of Natural Resources</subject><subject>Cypriniformes - physiology</subject><subject>Earth and Environmental Science</subject><subject>Ecology</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental effects</subject><subject>Environmental factors</subject><subject>Environmental Management</subject><subject>Environmental Monitoring</subject><subject>Female</subject><subject>Females</subject><subject>Fish</subject><subject>Fish reproduction</subject><subject>Fishing</subject><subject>Freshwater</subject><subject>Freshwater fish</subject><subject>Freshwater fishes</subject><subject>Gonadosomatic index</subject><subject>Inland water environment</subject><subject>Lepidocephalichthys guntea</subject><subject>Male</subject><subject>Males</subject><subject>Monitoring/Environmental Analysis</subject><subject>Monthly variations</subject><subject>Moratoria</subject><subject>Ovaries</subject><subject>Population structure</subject><subject>Predators</subject><subject>Rainfall</subject><subject>Reproduction</subject><subject>Rivers</subject><subject>Sex Ratio</subject><subject>Spawning</subject><subject>Spawning seasons</subject><issn>0167-6369</issn><issn>1573-2959</issn><issn>1573-2959</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kc9u1DAQxi1ERbcLL8ABWeLCgYD_JLbDrVQUKq0EquAcOfZk45K1g52slHfgoevdLVTiwGk0o99832g-hF5S8o4SIt8nSoSgBWFlQZmseFE9QStaSV6wuqqfohWhQhaCi_ocXaR0RwipZVk_Q-dcKVmrkqzQ71sYY7CzmdwecOvCELYLDh3ewOhsMDD2enCmn_ol4e3sJ9AfsMY_YcEm-ARxrycXPNZjltGmP06dhej8FoPfuxj8DvykB9xpM4WYsPP4m16ixrfZMr7FH7XfDtpC6p-js04PCV481DX6cf3p-9WXYvP1883V5aYwrBJTUZaWWSiJMLRUFBQxtqMVYaq2quJMy5rkb3St0op00AlotWGlzX1XatZavkZvTrr55l8zpKnZuWRgGLSHMKeGE6FkJaWQGX39D3oX5ujzdUdKcMqz1xqxE2ViSClC14zR7XRcGkqaQ1bNKasmZ9Ucs2oOS68epOd2B_bvyp9wMsBPQBoP74T46P0f2Xv_tqJo</recordid><startdate>20240701</startdate><enddate>20240701</enddate><creator>Saha, Newton</creator><creator>Roy, Prosun</creator><creator>Sarmin, Most. 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Shakila</au><au>Iqbal, Md. Asif</au><au>Hasan, Md. Hasibul</au><au>Hossain, Md. Moazzem</au><au>Hossain, Md. Yeamin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproductive biology of Lepidocephalichthys guntea: a key conservation approach considering environmental factors in Payra River, Bangladesh</atitle><jtitle>Environmental monitoring and assessment</jtitle><stitle>Environ Monit Assess</stitle><addtitle>Environ Monit Assess</addtitle><date>2024-07-01</date><risdate>2024</risdate><volume>196</volume><issue>7</issue><spage>622</spage><pages>622-</pages><artnum>622</artnum><issn>0167-6369</issn><issn>1573-2959</issn><eissn>1573-2959</eissn><abstract>The guntea loach,
Lepidocephalichthys guntea
, is categorically common freshwater fish in Southeast Asia. Current study is the first elucidation on the reproductive feature of
L. guntea
including population structure, sex ratio (SR), size at first maturity (
L
m
), breeding period, and condition factor, emphasizing on the effect of environmental factors on reproduction of this fish in the Payra River (Southern Bangladesh) during July 2021 to June 2022. Using various conventional gears, 1128 individuals (534 males and 594 females) have been collected. Total length (TL), standard length (SL), and body weight (BW) of each fish were measured. Ovaries were cautiously dissected, removed, and precisely weighed. TL ranges from 4.6 to 9.7 cm (BW = 0.7–9.27 g) for male and 4.6–10.3 cm (BW = 0.8–10.75 g) for female. Both male (47.34%) and female (52.66%) populations were the leading group in 7.00–7.99 cm TL. Overall SR was not notably altered from anticipated value of 1:1 (male:female = 1:1.11). Nonetheless, monthly variations of SR specified females were considerably outnumbered males in each month excluding March–May.
L
m
range was 6.4–7.0 cm, so larger than
L
m
is recommended to exploit. Monthly changes in GSI indicated that the main spawning season was from March to June. The spawning season was substantially correlated with rainfall, nonetheless with temperature. Additionally, relative weight indicated that habitat was imbalanced with higher predators. A fishing ban is recommended during peak spawning to protect
L. guntea
in the Payra River and its surroundings based on current research.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><pmid>38879840</pmid><doi>10.1007/s10661-024-12753-5</doi><orcidid>https://orcid.org/0000-0002-4398-7437</orcidid><orcidid>https://orcid.org/0000-0002-8601-4010</orcidid><orcidid>https://orcid.org/0000-0003-2129-6923</orcidid><orcidid>https://orcid.org/0000-0001-6381-0199</orcidid><orcidid>https://orcid.org/0000-0002-8183-7296</orcidid><orcidid>https://orcid.org/0000-0002-9044-251X</orcidid><orcidid>https://orcid.org/0000-0003-1656-599X</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0167-6369 |
| ispartof | Environmental monitoring and assessment, 2024-07, Vol.196 (7), p.622, Article 622 |
| issn | 0167-6369 1573-2959 1573-2959 |
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| source | MEDLINE; SpringerNature Journals |
| subjects | Animal morphology Animals Atmospheric Protection/Air Quality Control/Air Pollution Bangladesh Body weight Condition factor Conservation of Natural Resources Cypriniformes - physiology Earth and Environmental Science Ecology Ecotoxicology Environment Environmental effects Environmental factors Environmental Management Environmental Monitoring Female Females Fish Fish reproduction Fishing Freshwater Freshwater fish Freshwater fishes Gonadosomatic index Inland water environment Lepidocephalichthys guntea Male Males Monitoring/Environmental Analysis Monthly variations Moratoria Ovaries Population structure Predators Rainfall Reproduction Rivers Sex Ratio Spawning Spawning seasons |
| title | Reproductive biology of Lepidocephalichthys guntea: a key conservation approach considering environmental factors in Payra River, Bangladesh |
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