Length-weight relationships of five fish species from the Nujiang River (Salween basin), southwest China

Huang, Fujiang; Liu, M. D.; Yu, Lixiong; Liu, S. P.

doi:10.1111/jai.13449

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…The relationship between fish length and weight (LWR) plays an essential role in evaluating the growth and biomass of a fish population (Phan et al, 2021). The length-weight relationship is a useful biological tool for understanding the changes in aquatic environment (Shah et al, 2013) and is widely used in planning a better management strategy for fisheries resources (Huang et al, 2018).The length-weight relationship provides a means for finding out the condition factors that indicate the "wellbeing of the fish" (Olopade et al, 2018). The length-weight relationship (LWR) and Fulton's condition factor (K) are accepted as an indicator of the healthiness of fish stocks (Brosset et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Health status of sciaenid species following mass fish kills in coastal waters of Niger Delta, Nigeria

Olopade¹,

Dienye²

2023

World J. Adv. Res. Rev.

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The length-weight relationship, condition factor, and hepatosomatic index of three of the most abundant and commercially valuable croaker (Sciaenidae) species in the coastal waters of Nigeria were examined following mass fish kills. A total of 489 individuals of Pseudotolithus were sampled, and Pseudotolithus elongatus formed the bulk of the catch, comprising 67.55% by numbers, followed by P. typus and P. senegalensis, which represented 23.15% and 22.56%, respectively. LWRs were estimated to be BW = 0.0133TL2.38 for P. typus, BW = 0.0537TL2.86 for P. senegalensis, and BW = 0.00391TL3.00 for P. elongatus. The condition factors recorded ranged from 0.64±0.04 to 1.93±0.03 for P. typus, 0.74±0.04 to 1.85±0.05 for P. senegalensis, and 0.73±0.03 to1.61±0.01 for P. elongtatus. The HSI values for P. typus ranged from 0.64±0.04 to 1.93±0.03, 0.74±0.04 to 1.85±0.05 for P. senegalensis, and 0.73±0.03 to 1.61±0.01 for P. elongtatus. In conclusion, the results of this study would be very useful to execute specific management for the Sciaenid fishery in other coastal waters in Nigeria to achieve its sustainability.

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Section: Introductionmentioning

confidence: 99%

Health status of sciaenid species following mass fish kills in coastal waters of Niger Delta, Nigeria

Olopade¹,

Dienye²

2023

World J. Adv. Res. Rev.

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“…However, fish stocks continue to decline due to overfishing, biological invasion, environmental damage, and hydroelectric dam construction (Chen et al., 2015; Zhang et al., 2018). Recent studies have examined various biological and ecological aspects of native fish in the Nujiang River basin, e.g., growth characteristics and feeding habits (Deng et al., 2010; He et al., 2015; Huang et al., 2018; Jiang & Wang, 2018; Li et al, 2019; Pan et al., 2017; Peng et al., 2018; Zhang et al., 2018; Zheng et al., 2018); however the growth characteristics of many species remain unreported. In this study, the length‐weight relationships (LWRs) of four fish species were determined to provide basic data for further investigations on these populations and for fisheries management.…”

Section: Introductionmentioning

confidence: 99%

Length‐weight relationships of four fish species from the lower reaches of the Nujiang River and its tributaries in China

et al. 2021

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“…Length-Weight Relationship (LWR) provides information on the fish stock composition, life span, mortality, growth patterns, fish production, indications on the climate and environmental changes as well as human subsistence. LWR is widely used in planning a better management strategy fisheries resources (Huang et al, 2018). Growth patterns of fish usually follow the cube laws but the actual relationship may differ due to environmental factors (Yosuva et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Length-Weight Relationship, Condition Factor and Feeding Habit of Fishes from Mangrove of Santubong Estuary, Sarawak, Malaysia

Idrus¹,

Aziz

Lee

2021

BJRST

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Length-weight relationship (LWR), condition factor (K) and feeding habits of Coilia dussumieri, Nemapteryx nenga and Nibea soldado from Santubong Estuary, Sarawak, Malaysia were reported in the present study. The sampling was conducted during the non-monsoon season and monsoon season from April to November 2017 at Buntal, Penambir and Demak rivers using three-layered gillnets. A total of 182 fish samples were caught and measured for the total length and body weight. Then, the data were analysed by the equations for LWR and K. The feeding behaviour analysis was carried out using Relative Gut Index (RGI) and Frequency of Food Occurrence method. The log-transformed regression showed that most of the fishes exhibited negative allometric. K showed a significant difference between seasons. The RGI values of the fishes showed that they were carnivorous. The highest frequency of food occurrence in both seasons was gastropods (94-95 %) and the food items were found to be more variable during monsoon season (gastropods insect, worms, fish, asteroidea, phytoplankton and bivalve). The b value is an exponent to measure the growth pattern of fish and in this study, the b values were in the expected range of 2.5-3.5 and not affected by seasonal variation. The K values suggesting that most of the species were surviving well in the river and was influenced by seasonal change. The RGI and frequency of food occurrence showed that all fish in this study species were carnivorous with more variability in food was observed during the monsoon season. The data of this study are important for a sustainable fisheries management in this area.

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Length-weight relationships of five fish species from the Nujiang River (Salween basin), southwest China

Cited by 3 publications

References 5 publications

Health status of sciaenid species following mass fish kills in coastal waters of Niger Delta, Nigeria

Health status of sciaenid species following mass fish kills in coastal waters of Niger Delta, Nigeria

Length‐weight relationships of four fish species from the lower reaches of the Nujiang River and its tributaries in China

Length-Weight Relationship, Condition Factor and Feeding Habit of Fishes from Mangrove of Santubong Estuary, Sarawak, Malaysia

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