LENGTH-WEIGHT RELATIONSHIP OF SPINY EEL Macrognathus pancalus (Hamilton-Buchanan) FROM UPPER ASSAM, INDIA

Abujam, Santoshkumar

doi:10.3153/jaefr16007

Cited by 9 publications

(9 citation statements)

References 4 publications

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“…As samples of each species collected over several seasons, the parameters a and b should be treated as mean annual values. A few study dealing with LWRs were conducted by Abujam and Biswas (2015), Dutta and Banerjee (2016), Yerli, Korkmaz, and Mangıt (2015), Chaklader, Siddik, Hanif, Nahar, Sultan Mahmud, et al (2016) on several Mastacembilidae and Cyprinidae species but present study provided more inclusive information for LWRs of three species of this two families. The result of the present study provides basic biological information on the LWRs that can be useful for fishery biologists, managers and conservationists for the efficient management and conservation of these species in the Arial Khan River, Bangladesh.…”

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 84%

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Length-weight relationships of three fish species from the Arial Khan River, an outlet of the river Padma, Bangladesh

2017

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Summary The present study narrated the length–weight relationships (LWRs) of three fish species Salmophasia sardinella (Valenciennes, 1844), Amblypharyngodon microlepis (Bleeker, 1853) and Macrognathus aral (Bloch & Scheider, 1801) from the Arial Khan River, a south‐eastward outlet of the river Padma, Bangladesh. Fish samples were collected monthly basis from fishermen who used cast nets (mesh size <0.5 cm) and set bag nets (mesh size 0.5 cm) for catching fish species from January to December, 2016. The growth coefficient b in LWRs were 3.004, 3.001 and 2.936 for M. aral, S. sardinella and A. microlepis, respectively.

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Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 84%

Length-weight relationships of three fish species from the Arial Khan River, an outlet of the river Padma, Bangladesh

2017

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“…According to Le Cren (1951) variation in growth rate of the same species during different months are influenced by many factors such as environmental factors, food supply, ecological conditions of the habitats or variation in the physiology. The allometric growth was also observed in other freshwater fishes due to change in error sampling, locality, shape, sex, gonad maturity, stomach fullness and condition of the fish or environmental conditions (Bagenal & Tesch, 1978;Froese, 2006;Abujam & Biswas, 2014;Abujam & Biswas, 2016;Dakua et al, 2016).…”

Section: Resultsmentioning

confidence: 89%

“…The 'K' values recorded in June-August showed a decreasing trend which coincided with the occurrence of peak value of gonadosomatic index (GSI) in both sexes.. The decrease in these months may be due to the feeding intensity of gravid fish decline during spawning period (Da Costa & Araujo, 2003;Abujam & Biswas, 2014;Abujam & Biswas, 2016;Dakua et al, 2016). The high 'K' values during the subsequent spawning period and preparatory phase in both the sexes may be related to the period of feeding intensity increases so as to regain the lost energy and also to rebuild their body reserve for the development of gonads as a preparation for the next spawning period.…”

Section: Resultsmentioning

confidence: 97%

LENGTH- WEIGHT RELATIONSHIP (LWR) AND CONDITION FACTOR OF Amblyceps apangi NATH & DEY FROM ARUNACHAL PRADESH, INDIA

Kachari¹

2017

J Aquacult Eng Fish Res

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Abstract:Length-weight relationship of Amblyceps apangi had been carried out from streams of Dikrong River Arunachal Pradesh, during January 2014 to December 2015. The co-efficient of regression (b) was recorded as 2.213 (males); 2.376 (females); 2.312 in pooled (both sexes). The result reveals that females have better growth than males and both sexes signify a negative allometric growth pattern. The highest Condition factor 'K' value (0.82 ±0.24) for male was found in November and minimum (0.45 ± 0.12) was observed in July. In case of female, the highest value (0.95 ± 0.11) was recorded in November and lowest (0.50 ± 0.09) was noticed in June. Again, the highest K values (0.83 ± 0.16) of male was found in 61-70 mm while in females the highest (0.86 ± 0.13) was in 51-60 mm. The lowest values for both male (0.38 ± 0.07) and female (0.36 ± 0.03) were observed in 141-150 mm. The Relative Condition factor (Kn) value did not show any variation with respect to monthly and size grouping. The result indicates that both the sex was found in a good condition. Moreover, the K values were encountered with GSI values during the quiescent and degenerative phases of the reproductive cycle but minimum K values coincides with the increased GSI during the recrudescent phases both the sexes. Coefficient of correlation (r) shows more or less similar trend in all male, female and pooled. The correlation coefficient 'r' was found to be 0.906 (males); 0.949 (females) and 0.934 (pooled). This result indicates that there was a good correlation between length and weight of the fish.

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“…Condition factor (K) of fish species is very important parameter for understanding fish biology and pathology (Abujam and Biswas, 2014). Fishery is one of the most important branches for food production globally and need for understanding fish biology and their health status.…”

Section: Introductionmentioning

confidence: 99%

Condition Factor of Fishes of Rapti River in Different Seasons at Balrampur, Uttar Pradesh, India

Dharmraj¹,

Tabrez²,

Sandeep³

et al. 2019

IJZI

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The study appraised the condition factor of 35 species of fish from Rapti river. A total of 35 fish species were collected (belonging to 26 genera, 17 families and 7 orders) with the help of local fishermen using different fishing gears and nets from January 2016 to December 2017. The condition factor is an important biological parameters which indicates the suitability of a specific water body for growth of fish and an index of species average size. The condition factor of Anabas testudineus was found higher (10.214 in summer, 13.132 in rainy, 14.590 in winter) whereas condition factor of Bagarius bagarius was lowest (0.0311 in summer, 0.0380 in rainy, 0.0391 in winter).Results of the study revealed about the condition of the fish species throughout the year. Indiscriminate catch using fine mesh size nets, dumping of sewage, siltation, changing land use pattern, decreased water discharge and exotic species are the major threat for fish species and their habitat. An extensive study on the actual number of fishermen and their socioeconomic condition is required to evaluate the actual production. The results of the present study will play significant role in the management of fish culture programmes as well as protection of their natural habitats.

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LENGTH-WEIGHT RELATIONSHIP OF SPINY EEL Macrognathus pancalus (Hamilton-Buchanan) FROM UPPER ASSAM, INDIA

Cited by 9 publications

References 4 publications

Length-weight relationships of three fish species from the Arial Khan River, an outlet of the river Padma, Bangladesh

Length-weight relationships of three fish species from the Arial Khan River, an outlet of the river Padma, Bangladesh

LENGTH- WEIGHT RELATIONSHIP (LWR) AND CONDITION FACTOR OF Amblyceps apangi NATH & DEY FROM ARUNACHAL PRADESH, INDIA

Condition Factor of Fishes of Rapti River in Different Seasons at Balrampur, Uttar Pradesh, India

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