Population Dynamics of Saddle Grunt Fish, <i>Pomadasys maculatus</i> (Bloch, 1793) from Pakistani Waters

Abdul Baset; Qun Liu; Baochao Liao; Abdul Waris; Imtiaz Ahmad; Han Yanan; Zhang Qingqing

doi:doi:10.11648/j.be.20200401.11

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Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters

Abdul Baset, Qun Liu, Baochao Liao, Abdul Waris, Imtiaz Ahmad, Han Yanan, Zhang Qingqing

Published in Bioprocess Engineering (Volume 4, Issue 1)

Received: 6 December 2019 Accepted: 2 January 2020 Published: 4 February 2020

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Abstract

Length frequency data of Pomadasys maculatus (Bloch, 1793) was collected during 2012 and 2014 from Pakistan waters. Total 1387 fish individuals (pooled) were collected ranging from 7-22 cm (total length). Weight ranging 5-105 g. The data were analyzed for the estimation of population dynamics. The power coefficient of 2.532 in 2012 and 2.560 in 2014. The von Bertalanffy growth parameters of 23.10 cm (L_∞), 0.480year^-1 (K) for 2012 and 23.10 cm (L_∞), 0.570year^-1 (K) for 2014, were calculated by ELEFAN method. The Z was 2.06years^-1 for 2012 and 2.07year^-1 for 2014. The M) was1.16 year^-1 for 2012 and 1.30 year^-1 for 2014 calculated with Pauly’s equation. Therefore, the F was 0.9 years^-1 in 2012 and 0.77years^-1 in 2014. The exploitation ratio was estimated to be 0.43 and 0.32 respectively. The YPRA (yield-per-recruit analysis) indicated that the estimated F_max was 1 for both years, when tc was 1. F_current was 0.9 and 0.77 (for 2012 and 2014 respectively) which was less than F_max. With Gulland method, the BRPs for the fishery (F_opt) was estimated at 1.16 years^-1 and 1.30 years^-1 respectively, higher than current fish mortality. Accordingly, the Pomadasys maculatus fishery is in managing the condition in Pakistani waters.

Published in	Bioprocess Engineering (Volume 4, Issue 1)
DOI	10.11648/j.be.20200401.11
Page(s)	1-8
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Pakistan, Pomadasys maculatus, Length-weight Relationship (LWR), Mortality, Growth

References

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APA Style

Abdul Baset, Qun Liu, Baochao Liao, Abdul Waris, Imtiaz Ahmad, et al. (2020). Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters. Bioprocess Engineering, 4(1), 1-8. https://doi.org/10.11648/j.be.20200401.11

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ACS Style

Abdul Baset; Qun Liu; Baochao Liao; Abdul Waris; Imtiaz Ahmad, et al. Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters. Bioprocess Eng. 2020, 4(1), 1-8. doi: 10.11648/j.be.20200401.11

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AMA Style

Abdul Baset, Qun Liu, Baochao Liao, Abdul Waris, Imtiaz Ahmad, et al. Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters. Bioprocess Eng. 2020;4(1):1-8. doi: 10.11648/j.be.20200401.11

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@article{10.11648/j.be.20200401.11,
  author = {Abdul Baset and Qun Liu and Baochao Liao and Abdul Waris and Imtiaz Ahmad and Han Yanan and Zhang Qingqing},
  title = {Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters},
  journal = {Bioprocess Engineering},
  volume = {4},
  number = {1},
  pages = {1-8},
  doi = {10.11648/j.be.20200401.11},
  url = {https://doi.org/10.11648/j.be.20200401.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.be.20200401.11},
  abstract = {Length frequency data of Pomadasys maculatus (Bloch, 1793) was collected during 2012 and 2014 from Pakistan waters. Total 1387 fish individuals (pooled) were collected ranging from 7-22 cm (total length). Weight ranging 5-105 g. The data were analyzed for the estimation of population dynamics. The power coefficient of 2.532 in 2012 and 2.560 in 2014. The von Bertalanffy growth parameters of 23.10 cm (L∞), 0.480year-1 (K) for 2012 and 23.10 cm (L∞), 0.570year-1 (K) for 2014, were calculated by ELEFAN method. The Z was 2.06years-1 for 2012 and 2.07year-1 for 2014. The M) was1.16 year-1 for 2012 and 1.30 year-1 for 2014 calculated with Pauly’s equation. Therefore, the F was 0.9 years-1 in 2012 and 0.77years-1 in 2014. The exploitation ratio was estimated to be 0.43 and 0.32 respectively. The YPRA (yield-per-recruit analysis) indicated that the estimated Fmax was 1 for both years, when tc was 1. Fcurrent was 0.9 and 0.77 (for 2012 and 2014 respectively) which was less than Fmax. With Gulland method, the BRPs for the fishery (Fopt) was estimated at 1.16 years-1 and 1.30 years-1 respectively, higher than current fish mortality. Accordingly, the Pomadasys maculatus fishery is in managing the condition in Pakistani waters.},
 year = {2020}
}

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TY  - JOUR
T1  - Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters
AU  - Abdul Baset
AU  - Qun Liu
AU  - Baochao Liao
AU  - Abdul Waris
AU  - Imtiaz Ahmad
AU  - Han Yanan
AU  - Zhang Qingqing
Y1  - 2020/02/04
PY  - 2020
N1  - https://doi.org/10.11648/j.be.20200401.11
DO  - 10.11648/j.be.20200401.11
T2  - Bioprocess Engineering
JF  - Bioprocess Engineering
JO  - Bioprocess Engineering
SP  - 1
EP  - 8
PB  - Science Publishing Group
SN  - 2578-8701
UR  - https://doi.org/10.11648/j.be.20200401.11
AB  - Length frequency data of Pomadasys maculatus (Bloch, 1793) was collected during 2012 and 2014 from Pakistan waters. Total 1387 fish individuals (pooled) were collected ranging from 7-22 cm (total length). Weight ranging 5-105 g. The data were analyzed for the estimation of population dynamics. The power coefficient of 2.532 in 2012 and 2.560 in 2014. The von Bertalanffy growth parameters of 23.10 cm (L∞), 0.480year-1 (K) for 2012 and 23.10 cm (L∞), 0.570year-1 (K) for 2014, were calculated by ELEFAN method. The Z was 2.06years-1 for 2012 and 2.07year-1 for 2014. The M) was1.16 year-1 for 2012 and 1.30 year-1 for 2014 calculated with Pauly’s equation. Therefore, the F was 0.9 years-1 in 2012 and 0.77years-1 in 2014. The exploitation ratio was estimated to be 0.43 and 0.32 respectively. The YPRA (yield-per-recruit analysis) indicated that the estimated Fmax was 1 for both years, when tc was 1. Fcurrent was 0.9 and 0.77 (for 2012 and 2014 respectively) which was less than Fmax. With Gulland method, the BRPs for the fishery (Fopt) was estimated at 1.16 years-1 and 1.30 years-1 respectively, higher than current fish mortality. Accordingly, the Pomadasys maculatus fishery is in managing the condition in Pakistani waters.
VL  - 4
IS  - 1
ER  -

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Author Information

Abdul Baset

Department of Zoology, Bacha Khan University, Charsadda, Pakistan
Qun Liu

College of Fisheries, Ocean University of China, Qingdao, China
Baochao Liao

College of Fisheries, Ocean University of China, Qingdao, China
Abdul Waris

Department of Biotechnology, Quaid-e-Azam University, Islamabad, Pakistan
Imtiaz Ahmad

Department of Botany, Bacha Khan University, Charsadda, Pakistan
Han Yanan

College of Fisheries, Ocean University of China, Qingdao, China
Zhang Qingqing

College of Fisheries, Ocean University of China, Qingdao, China

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APA Style

Abdul Baset, Qun Liu, Baochao Liao, Abdul Waris, Imtiaz Ahmad, et al. (2020). Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters. Bioprocess Engineering, 4(1), 1-8. https://doi.org/10.11648/j.be.20200401.11

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ACS Style

Abdul Baset; Qun Liu; Baochao Liao; Abdul Waris; Imtiaz Ahmad, et al. Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters. Bioprocess Eng. 2020, 4(1), 1-8. doi: 10.11648/j.be.20200401.11

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AMA Style

Abdul Baset, Qun Liu, Baochao Liao, Abdul Waris, Imtiaz Ahmad, et al. Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters. Bioprocess Eng. 2020;4(1):1-8. doi: 10.11648/j.be.20200401.11

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@article{10.11648/j.be.20200401.11,
  author = {Abdul Baset and Qun Liu and Baochao Liao and Abdul Waris and Imtiaz Ahmad and Han Yanan and Zhang Qingqing},
  title = {Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters},
  journal = {Bioprocess Engineering},
  volume = {4},
  number = {1},
  pages = {1-8},
  doi = {10.11648/j.be.20200401.11},
  url = {https://doi.org/10.11648/j.be.20200401.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.be.20200401.11},
  abstract = {Length frequency data of Pomadasys maculatus (Bloch, 1793) was collected during 2012 and 2014 from Pakistan waters. Total 1387 fish individuals (pooled) were collected ranging from 7-22 cm (total length). Weight ranging 5-105 g. The data were analyzed for the estimation of population dynamics. The power coefficient of 2.532 in 2012 and 2.560 in 2014. The von Bertalanffy growth parameters of 23.10 cm (L∞), 0.480year-1 (K) for 2012 and 23.10 cm (L∞), 0.570year-1 (K) for 2014, were calculated by ELEFAN method. The Z was 2.06years-1 for 2012 and 2.07year-1 for 2014. The M) was1.16 year-1 for 2012 and 1.30 year-1 for 2014 calculated with Pauly’s equation. Therefore, the F was 0.9 years-1 in 2012 and 0.77years-1 in 2014. The exploitation ratio was estimated to be 0.43 and 0.32 respectively. The YPRA (yield-per-recruit analysis) indicated that the estimated Fmax was 1 for both years, when tc was 1. Fcurrent was 0.9 and 0.77 (for 2012 and 2014 respectively) which was less than Fmax. With Gulland method, the BRPs for the fishery (Fopt) was estimated at 1.16 years-1 and 1.30 years-1 respectively, higher than current fish mortality. Accordingly, the Pomadasys maculatus fishery is in managing the condition in Pakistani waters.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Population Dynamics of Saddle Grunt Fish, Pomadasys maculatus (Bloch, 1793) from Pakistani Waters
AU  - Abdul Baset
AU  - Qun Liu
AU  - Baochao Liao
AU  - Abdul Waris
AU  - Imtiaz Ahmad
AU  - Han Yanan
AU  - Zhang Qingqing
Y1  - 2020/02/04
PY  - 2020
N1  - https://doi.org/10.11648/j.be.20200401.11
DO  - 10.11648/j.be.20200401.11
T2  - Bioprocess Engineering
JF  - Bioprocess Engineering
JO  - Bioprocess Engineering
SP  - 1
EP  - 8
PB  - Science Publishing Group
SN  - 2578-8701
UR  - https://doi.org/10.11648/j.be.20200401.11
AB  - Length frequency data of Pomadasys maculatus (Bloch, 1793) was collected during 2012 and 2014 from Pakistan waters. Total 1387 fish individuals (pooled) were collected ranging from 7-22 cm (total length). Weight ranging 5-105 g. The data were analyzed for the estimation of population dynamics. The power coefficient of 2.532 in 2012 and 2.560 in 2014. The von Bertalanffy growth parameters of 23.10 cm (L∞), 0.480year-1 (K) for 2012 and 23.10 cm (L∞), 0.570year-1 (K) for 2014, were calculated by ELEFAN method. The Z was 2.06years-1 for 2012 and 2.07year-1 for 2014. The M) was1.16 year-1 for 2012 and 1.30 year-1 for 2014 calculated with Pauly’s equation. Therefore, the F was 0.9 years-1 in 2012 and 0.77years-1 in 2014. The exploitation ratio was estimated to be 0.43 and 0.32 respectively. The YPRA (yield-per-recruit analysis) indicated that the estimated Fmax was 1 for both years, when tc was 1. Fcurrent was 0.9 and 0.77 (for 2012 and 2014 respectively) which was less than Fmax. With Gulland method, the BRPs for the fishery (Fopt) was estimated at 1.16 years-1 and 1.30 years-1 respectively, higher than current fish mortality. Accordingly, the Pomadasys maculatus fishery is in managing the condition in Pakistani waters.
VL  - 4
IS  - 1
ER  -

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