Overview
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Key numbers
The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:
- as follows: 124 are males (M = 58.76 %), 87 females (F = 41.23 %) (Table 1). The overall
- sex ratio (SR) determined during our sampling was 70.16%. It was consistently in favour
- Table 1. Percentage of sexes of L. callensis in Ouldjet Mellegue dam
- sexes ranged from 20 cm to 59 cm. We note that the lowest size was recorded in males
- The size class (35-40(which presents the highest frequency (F = 47.39%). However,
- the lowest frequency value (F =0.47%; 0.95%) is recorded by the size classes of (55-
- and small female specimens (F = 0%).
- for the total population (F = 37.91%), males (F = 37.90%) and females (F = 37.93%).
- (Table 2). The growth index of Munro and Pauly (1983) is 3.73 for females, 3.52 for
- Table 2. Parameters of the Von Bertalanffy linear growth equation of both sexes and the
- (regression slopes) are statistically equal to the theoretical slope 𝑏0 = 3 (Table 3), this
- Table 4. Parameters of the Von Bertalanffy weight growth equation for both sexes and the
- females and males. At 5 years, we note that weight growth in females (mean
- Wt = 1189.63 g) is slightly greater than that of males (mean Wt = 1127.85 g).
- Nikolskii (1969), this age range is accepted as an indicator of sufficient food availability.
- showed in the K’sob reservoir a b-value of less than 2.53 and r² = 93%. The origin of the
- For all individuals (n = 211) of Algerian barbel (124 males and 87 males), the total
Methods (brief)
- were collected from the Ouldjet Mellegue dam in Tébessa during a period from February 2022 to May
- sampled 211 fish, including 124 males and 87 females. Fish were taken using gillnets
- for a drop of 3.5 m. The fish are collected early in the morning. The most fish caught were
- The population, represented by a sample of 211 L. callensis individuals, is structured
- sampled (1251.2 g, 1753.3 g and 1276 g, respectively).
- samples and the living conditions of the different media could explain this difference in
Implications
This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.
Wiki pages this source may touch
- Fish — marine, non-predatory (sardines, anchovies, salmon, cod)
- Shellfish (shrimp, crab, lobster, clams, oysters, mussels)
- Cadmium
Verification notes
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Update history
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