Truss morphometry and otolith microchemistry reveal stock discrimination in Clarias batrachus (Linnaeus, 1758) inhabiting the Gangetic river system

Miyan, Kaish; Khan, Mohammad Afzal; Patel, Devendra Kumar; Khan, Shahbaz; Ansari, Nasreen Ghazi

doi:10.1016/j.fishres.2015.10.024

Cited by 31 publications

(16 citation statements)

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“…Kennedy, Chamberlain, Blum, Nislow, & Folt, 2005;Khan et al, 2012;Miyan, Khan, Patel, Khan, & Ansari, 2016;Wright, Regnier, Gibb, Augley, & Devalla, 2018). There could be habitat and/or species-specific variation in the type of elements present in otoliths that exert great influence in discriminating the fish stocks.For example, Ba:Ca, K:Ca, Li:Ca, Mg:Ca, Na:Ca and Sr:Ca showed significant spatial variability in the Gangetic population of S. aor.…”

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“…Kennedy, Chamberlain, Blum, Nislow, & Folt, 2005;Khan et al, 2012;Miyan, Khan, Patel, Khan, & Ansari, 2016;Wright, Regnier, Gibb, Augley, & Devalla, 2018). For example,Miyan, Khan, Patel, Khan, and Ansari (2016);Miyan, Khan, Patel, Khan, and Prasad (2016) reported classification success of 94% and 83.2% for Clarias batrachus and Sperata seenghala respectively to their location of sampling in the Gangetic river system. Similar reports on the Ba:Ca, Mg:Ca and Sr:Ca ratios were reported in a number of freshwater fish species such as Oncorhyncus clarki lewisi from Coeur d'Alene River (Wells, Rieman, Clayton, Horan, & Jones, 2003), Micropterus dolomieu from James River and its tributary, Maury River (Humston, Priest, Hamilton, & Bugas, 2010), and Prochilodus mariae from Apure drainage of the Orinoco basin (Collins et al, 2013).…”

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“…The present findings regarding correct classification rates of fish stocks from the River Ganga are in corroboration with earlier reports on fish stock discrimination from the same River. For example,Miyan, Khan, Patel, Khan, and Ansari (2016);Miyan, Khan, Patel, Khan, and Prasad (2016) reported classification success of 94% and 83.2% for Clarias batrachus and Sperata seenghala respectively to their location of sampling in the Gangetic river system. However, F I G U R E 4 Canonical discriminant analysis of Sperata aor otolith chemistry grouped by sampling sites of the River Ganga.…”

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Spatial and temporal variation in otolith chemistry and its relationship with water chemistry: Stock discrimination of Sperata aor

Nazir

Khan

2019

Ecology of Freshwater Fish

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Long‐whiskered catfish, Sperata aor (Hamilton 1822), is commercially important in food, ornamental and sport fisheries. The fish is mainly caught from the wild populations because its aquaculture practices are not commercialised. Inland fishery in the Ganga basin is mostly unorganised; hence, no published report is available on the trend of S. aor production from the selected habitat. In India, S. aor has been categorised vulnerable mainly due to natural and anthropogenic threats. Otolith chemistry shows variation with changing physico‐chemical conditions of the fish habitat. Therefore, the present study was conducted with the objective to analyse spatio‐temporal variations in water chemistry in relation to environmental factors; relationship between water and otolith chemistry; and spatio‐temporal variations in otolith chemistry to discriminate the stocks of S. aor inhabiting the River Ganga. Most of the element: Ca ratios in water samples did not show significant correlations with environmental factors, viz. temperature and conductivity. Only few element: Ca concentrations in otoliths were positively correlated to their corresponding ratios in the ambient water. In the selected study area, the S. aor populations were discriminated into four stocks possibly because of heterogeneous water chemistry at the sampling sites, and physical barriers. In the present study, otolith chemistry showed relatively low temporal variability as compared to spatial variability; thus, the classification accuracy of individuals to their original populations remained consistent over the selected time period. The findings could be useful in devising scientifically sound management strategies and/or any conservation plans for the vulnerable S. aor populations inhabiting the River Ganga.

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Spatial and temporal variation in otolith chemistry and its relationship with water chemistry: Stock discrimination of Sperata aor

Nazir

Khan

2019

Ecology of Freshwater Fish

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“…Significant deviations were found in the head region and posterior part of the body of well-fed and feed deprived Oncorhynchus mykiss and O. tshawytscha (Currens et al, 1989). Related findings were also detected in Clarius batracus population (Miyan et al, 2016), Channa punctatus population (Khan et al, 2013) and Heteropneustes fossilis population (Rahman et al, 2014). Generally, fishes inhabiting turbid water conditions are living in suspended solid medium; they ultimately modify in body physiology as well as reduce in eye diameter and inter-orbital distance (Moore, 1950).…”

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confidence: 91%

Meristic and Morphometric Variations of Barred Spiny EEL Macrognathus pancalus Populations from Bangladeshi Freshwaters: An Insight Into Landmark-Based Truss Network System

Sarower-E-Mahfuj

Khatun

Boidya

et al. 2019

Croatian Journal of Fisheries

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The present research focuses to examine the meristic and landmark-based morphometric variations of barred spiny eel Macrognathus pancalus from four populations namely Dhakuria beel, Jessore (DBJ); Bohnni boar, Gopalgonj (BBG); the Arial kha river, Madaripur (AKRM) and the Nabaganga river, Jhenidah (NRJ) in Bangladeshi freshwaters. Six meristic counts were compared among four populations and significant differences were observed in number of caudal fin rays and number of pelvic fin rays in all meristic characters. The truss protocol was used in the present study based on six general morphometrics and fifteen truss measurements. Univariate statistics showed that five (standard length (SL), upper jaw length (UJL), lower jaw length (LJL), head depth (HD) and inter orbital (IO)) of six morphometric and eleven truss networks (viz. 2-3, 3-4, 5-6, 6-7, 7-8, 1-8, 2-8, 3-8, 3-7, 4-7 and 5-7) among fifteen truss measurements differed significantly. Cannonical discriminate function analyses were conducted among samples and the populations were fully intermingled. Pooled within-group correlation showed morphometric and landmark measurements; the first discriminant function (DF) accounted for 79%, the second DF accounted for 15.9% and third DF accounted for 5.1% of group variability. An euclidian dendrogram was prepared based on morphometric and truss measurements in four populations, where two clusters were mainly formed, in which first cluster formed by NRJ population was fully separated, and the second cluster was formed by two populations of AKRM and DBJ. Additionally, a subcluster BBG was formed with AKRM. On the basis of morphometric and truss measurements, 68.8%, 83.6%, 55.6% and 80% of original grouped cases were correctly classified in NRJ, AKRM, DBJ and BBG, respectively. These results specify the presence of different stocks of fish from four aquatic habitats. This study is highly significant for proper conservation and effective management of M. pancalus populations as well as for the scientific community for further research.

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“…Also there are a lot of studies about intraspecific variations of fish stocks from otolith shape (Vignon and Morat, 2010;Bostancı et al 2015;Zengin et al, 2015;Hüssy et al, 2016;Avigliano et al, 2017;Saygin et al, 2017;Bostancı and Yedier, 2018;Song et al, 2018;Yedier et al, 2019). Otoliths are innate data archives that document information in their microstructure and chemistry at different spatial and temporal scales related to their growth and environment (Miyan et al, 2016). Otolith shape is a species specific character (L'abée-Lund, 1988;Campana and Casselman 1993), and thus partially subject to genetics and generally varies geographically within species in relation to environmental factors (Vignon and Morat, 2010).…”

Section: Introductionmentioning

confidence: 99%

Karadeniz Bölgesi’nden Örneklenen Lüfer Balığının, Pomatomus saltatrix (Linnaeus, 1766) Otolit Şekil Analizi

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Polat

2019

Acta Aquatica Turcica

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In this study, otolith shape indices and relationships between otolith shape and otolith length of the bluefish Pomatomus saltatrix (Linnaeus, 1766), which was sampled from the Samsun offshore of the Black Sea were investigated. A total of 166 samples (94♀ and 72♂) were taken from commercial fishermen in two different fishing seasons (October-December 2014 and January 2018). Sagittal otoliths of each sample were removed and six different shape index (form factor, roundness, circularity, rectangularity, ellipticity and aspect ratio) were used in analyses. The linear model is preferred for calculating the relationships between otolith shape properties and otolith length. Paired t-test, Wilcoxon test, Independent t test and Mann-Whitney U test were used for statistical analysis. The minimum and maximum total lengths and weights of the captured samples are between 13.5-24.8 cm and 22.01-161.19 g, respectively. There is no difference between female and male in terms of total length and weight. When otolith dimensions of female and male were compared, there were no differences in terms of otolith length (OL), otolith breadth (OB), otolith perimeter (OP) and otolith area (OA) (P˃0.05). However, according to left and right otoliths comparisons, there were differences in terms of otolith breadth and otolith perimeter (P˂0.05). Ellipticity was found to have a much stronger relationship with otolith length than the other five parameters (r 2 ˃0.590).

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Truss morphometry and otolith microchemistry reveal stock discrimination in Clarias batrachus (Linnaeus, 1758) inhabiting the Gangetic river system

Cited by 31 publications

References 36 publications

Spatial and temporal variation in otolith chemistry and its relationship with water chemistry: Stock discrimination of Sperata aor

Spatial and temporal variation in otolith chemistry and its relationship with water chemistry: Stock discrimination of Sperata aor

Meristic and Morphometric Variations of Barred Spiny EEL Macrognathus pancalus Populations from Bangladeshi Freshwaters: An Insight Into Landmark-Based Truss Network System

Karadeniz Bölgesi’nden Örneklenen Lüfer Balığının, Pomatomus saltatrix (Linnaeus, 1766) Otolit Şekil Analizi

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