Length-weight relationships of nine rarely occurring carangids in the northern Arabian Sea coast of Pakistan

Qamar, Nazia; Panhwar, Sher Khan

doi:10.1111/jai.13540

Cited by 6 publications

(8 citation statements)

References 2 publications

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“…The estimated length-weight relationship, W = 0.041*L 2.732 , indicated a hypoallometric progression of weight as individual grew in length, which was within the range (2.25 to 2.85) of earlier studies from the wild [16, 23]. But this alone does not give an indication of the quality of growth the organism experienced.…”

Section: Discussionsupporting

confidence: 48%

“…The growth in a natural system (LWR), like in open seas, can be used to estimate the standard weight which can be compared with weight gain in captivity to evaluate the growth realization in rearing systems. The LWR reported in [16] was used to estimate the standard weight for the equivalent length of the sampledfish. The proportion of recorded sample above the standard weight estimated from LWR from the wild of similar climatic regime could be used as an index of growth in captivity.…”

Section: Discussionmentioning

confidence: 99%

“…Fulton’s condition factor (K = W*100/ L3; where W and L are observed weight and length) was estimated to assess the condition of individual sampled fish [15]. Observed weight is also compared against the estimated weight from the length-weight relationship established from wild-caught specimens in order to assess the growth performance in captivity against their wild counterpart [16].…”

Section: Methodsmentioning

confidence: 99%

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Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

et al. 2019

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Diversification of shrimp farming with marine finfish in a farmer participatory research model was attempted. The study is intended to find an economically viable finfish culture during the fallow period of shrimp farms. The Silver pompano, Trachinotus blochi i intercropped with Pacific white shrimp, Litopenaeus vannamei culture in coastal shrimp ponds was assessed for growth, survival, and economic viability. During the grow-out period of 100 days, fishes grew from 40.23 ± 1.40 g to 256.56 ± 1.08 g in weight and 12.83 ± 0.19 cm to 25.11 ± 0.09 cm in length. The daily weight gain (DWG) and daily length gain (DLG) were 2.16 g/day and 0.12 cm/day, respectively. Relative growth rate (RGR) and specific growth rate (SGR) recorded for weight was 537.80% in 100 days and 1.85% per day, respectively. Pompano has exhibited its sturdiness and adaptability to the land-based culture system as evidenced by an overall survival percentage of 89.8% including nursery and grow-out phases. The realized feed conversion ratio was 1.94. The culture period of 100 days is found to be enough to attain a desirable harvest size of 250 g. The projected production potential of the experimental demonstration farm of 4500 m 2 water spread area for culture was 16.2 tonnes/cycle with a benefit-cost ratio (BCR) of 1.34 over operational cost. The present participatory trial empirically proved the viability of Silver pompano as an intercrop in coastal shrimp ponds. Thus, the introduction of Pompano in shrimp ponds is recommended and can be promoted for sustainable intercropping with shrimp farming along the Indian coast for improving people’s livelihoods.

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Section: Discussionsupporting

confidence: 48%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

et al. 2019

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“…The b value of LWR of five marine fish species were within the range (2.5–3.5) recommended by Froese (2006) for aquatic species. Previous recorded b value of A. atropos from India (2.859), China (3.021) and Pakistan (2.869) were lower than our results (Qamar & Panhwar, 2018; Reuben et al., 1992; Xu et al., 1994). Our estimated b value (2.589) for J. coitor was lower than previous finding (3.246) from the Ganga river, India (Verma et al., 2018) but higher than the study of Basumatary et al.…”

Section: Discussioncontrasting

confidence: 82%

Length weight relationships of five marine fishes from the Bay of Bengal

et al. 2021

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Length weight relationships (LWR) of five marine fishes were estimated from the Bay of Bengal, Bangladesh. Fish samples were collected occasionally from fisher's catch with gill net (mesh size: 3 cm) during November 2019 to October 2020. Fishing was done overnight. Total length (0.1 cm) and body weight (0.01 g) of each individual were measured. We recorded maximum total length for P. maculatus (55.0 cm) and P. parmatus (39.0 cm).

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“…The estimated coefficients 'a' and 'b' of blackbanded trevally were within the expected range estimated for different fish species (Froese, 2006). Marginally higher values of 'a' (0.040) and 'b' (2.766) were reported for S. nigrofasciata from northern Arabian Sea coast of Pakistan (Qamar and Panhwar, 2017). This variation in the degree of growth between the geographical locations could be due to the availability of food, diet selectivity, ecological conditions and physiology of animals (Bhattacharya and Acharya 1984;Jaiswar and Kulkarni, 2002;Froese, 2006).…”

Section: Length-weight Relationshipsupporting

confidence: 72%

Seriolina nigrofasciata (Ruppel, 1829), its fishery and biological aspects off south-west coast of India

Rajesh¹,

Rohit²,

Mini³

et al. 2019

Indian J. Fish.

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A comprehensive study on fishery, length-weight relationship, trophodynamics and reproductive aspects of the blackbanded trevally Seriolina nigrofasciata (Ruppel, 1829), collected during January 2013 to December 2017 from fishing vessels operating along eastern Arabian Sea off south-west coast of India was conducted. Among the maritime states of the country, Karnataka was the major contributor (53.9%) followed by Kerala (24.1%), Maharashtra (16%) and Tamil Nadu (4.3%). In Karnataka, 99.5% of the blackbanded trevally catch was exploited by trawl net and rest by outboard gillnets (0.5%). The total length ranged from 16.3 to 57.5 cm with fishes in the size range of 24 to 36 cm forming 80.8% of the catch. The length-weight relationship estimated showed a negative allometric growth for both sexes with b values of 2.595 for females and 2.504 for males. The estimated ‘a’ values for females and males were 0.00013 and 0.00021 respectively. In all, fifteen prey items under three major groups (teleosts, cephalopods and crustaceans) comprised the diet, with teleosts (73.23%) being the predominant food item followed by cephalopods (26.53%) and crustaceans (0.24%) in terms of index of relative importance (IRI). Overall sex ratio (male: female) of 1:1.15 indicated a slight dominance of females over males. The length at first maturity was estimated at 25.0 cm for male and 27.0 cm for female. The availability of mature and spent specimens all through the year implied that the species has prolonged spawning period with a peak during the summer season (March-May) and a minor secondary peak in post-monsoon season (October to December).

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Length-weight relationships of nine rarely occurring carangids in the northern Arabian Sea coast of Pakistan

Abstract: SummaryIn this paper, we document length-weight relationships (LWRs) for nine rarely occur- | MATERIALS AND METHODS This | RESULTSThe data of nine carangids used to estimate LWRs parameters such as length range, weight range, sample size (n), values of intercept, slope

Cited by 6 publications

References 2 publications

Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

Intercropping of marine finfish in shrimp ponds: A maiden feasibility study

Length weight relationships of five marine fishes from the Bay of Bengal

Seriolina nigrofasciata (Ruppel, 1829), its fishery and biological aspects off south-west coast of India

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