Cover Image

Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning

Very little work has determined the relative importance of uncontrolled environmental factors for affecting fish biology, and how these might influence gillnet catches. This study addresses this deficit for an important Southeast Asian cyprinid (Barbonymus schwanenfeldii). Fish were caught monthly f...

Full description

Saved in:
Bibliographic Details
Main Authors: Rahman, Mohammad Mustafizur, Fathi, Ahmad
Format: Article
Language:English
English
English
Published: Springer Nature 2022
Subjects:
BPK Islamic law. Shari'ah. Fiqh
SH Aquaculture. Fisheries. Angling
Online Access:http://irep.iium.edu.my/92642/7/92642_Influence%20of%20environmental%20factors%20on%20biology.pdf
http://irep.iium.edu.my/92642/13/92642_Influence%20of%20environmental%20factors%20on%20biology_WoS.pdf
http://irep.iium.edu.my/92642/19/92642_Influence%20of%20environmental%20factors%20on%20biology_SCOPUS.pdf
http://irep.iium.edu.my/92642/
https://link.springer.com/article/10.1007/s11356-021-16502-w
https://doi.org/10.1007/s11356-021-16502-w
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.iium.irep.92642
record_format dspace
spelling my.iium.irep.926422022-04-08T04:34:20Z http://irep.iium.edu.my/92642/ Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning Rahman, Mohammad Mustafizur Fathi, Ahmad BPK Islamic law. Shari'ah. Fiqh SH Aquaculture. Fisheries. Angling Very little work has determined the relative importance of uncontrolled environmental factors for affecting fish biology, and how these might influence gillnet catches. This study addresses this deficit for an important Southeast Asian cyprinid (Barbonymus schwanenfeldii). Fish were caught monthly for 12 months using gillnets of three different mesh sizes, each of which was deployed in duplicate at the surface of one of three randomly selected sites in Lake Kenyir, Malaysia, concurrent with determining various environmental parameters and the abundance of phytoplankton (chlorophyll–a). Results indicated that growth coefficient of B. schwanenfeldii was positively influenced by dissolved oxygen and negatively influenced by total inorganic nitrogen, whereas an opposite result was observed in case of the hepatosomatic index of fish. Water turbidity was a limiting factor only for small fish (mean total length: 15.74±1.10 cm). B. schwanenfeldii could best be caught during the period of high phytoplankton abundance or at the location of high phytoplankton density in the water. Water temperature negatively influenced the gillnet catches of the fish. The remaining environmental factors such as water depth, pH, and phosphate had a weak and insignificant influence (P >0.05) on the biology and gillnet catches of fish. The observed results can be very useful for the ecological monitoring and conservation plans for this species in relation to climate change. Furthermore, the utility of the similar data for other species would be useful not only for regional but also for international fishery by optimizing catches considering environmental conditions. Springer Nature 2022-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/92642/7/92642_Influence%20of%20environmental%20factors%20on%20biology.pdf application/pdf en http://irep.iium.edu.my/92642/13/92642_Influence%20of%20environmental%20factors%20on%20biology_WoS.pdf application/pdf en http://irep.iium.edu.my/92642/19/92642_Influence%20of%20environmental%20factors%20on%20biology_SCOPUS.pdf Rahman, Mohammad Mustafizur and Fathi, Ahmad (2022) Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning. Environmental Science and Pollution Research. pp. 1-15. ISSN 0944-1344 E-ISSN 1614-7499 https://link.springer.com/article/10.1007/s11356-021-16502-w https://doi.org/10.1007/s11356-021-16502-w
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
English
topic BPK Islamic law. Shari'ah. Fiqh
SH Aquaculture. Fisheries. Angling
spellingShingle BPK Islamic law. Shari'ah. Fiqh
SH Aquaculture. Fisheries. Angling
Rahman, Mohammad Mustafizur
Fathi, Ahmad
Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning
description Very little work has determined the relative importance of uncontrolled environmental factors for affecting fish biology, and how these might influence gillnet catches. This study addresses this deficit for an important Southeast Asian cyprinid (Barbonymus schwanenfeldii). Fish were caught monthly for 12 months using gillnets of three different mesh sizes, each of which was deployed in duplicate at the surface of one of three randomly selected sites in Lake Kenyir, Malaysia, concurrent with determining various environmental parameters and the abundance of phytoplankton (chlorophyll–a). Results indicated that growth coefficient of B. schwanenfeldii was positively influenced by dissolved oxygen and negatively influenced by total inorganic nitrogen, whereas an opposite result was observed in case of the hepatosomatic index of fish. Water turbidity was a limiting factor only for small fish (mean total length: 15.74±1.10 cm). B. schwanenfeldii could best be caught during the period of high phytoplankton abundance or at the location of high phytoplankton density in the water. Water temperature negatively influenced the gillnet catches of the fish. The remaining environmental factors such as water depth, pH, and phosphate had a weak and insignificant influence (P >0.05) on the biology and gillnet catches of fish. The observed results can be very useful for the ecological monitoring and conservation plans for this species in relation to climate change. Furthermore, the utility of the similar data for other species would be useful not only for regional but also for international fishery by optimizing catches considering environmental conditions.
format Article
author Rahman, Mohammad Mustafizur
Fathi, Ahmad
author_facet Rahman, Mohammad Mustafizur
Fathi, Ahmad
author_sort Rahman, Mohammad Mustafizur
title Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning
title_short Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning
title_full Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning
title_fullStr Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning
title_full_unstemmed Influence of environmental factors on biology and catch composition of Barbonymus schwanenfeldii in a tropical lake, northern Malaysia: implications for conservation planning
title_sort influence of environmental factors on biology and catch composition of barbonymus schwanenfeldii in a tropical lake, northern malaysia: implications for conservation planning
publisher Springer Nature
publishDate 2022
url http://irep.iium.edu.my/92642/7/92642_Influence%20of%20environmental%20factors%20on%20biology.pdf
http://irep.iium.edu.my/92642/13/92642_Influence%20of%20environmental%20factors%20on%20biology_WoS.pdf
http://irep.iium.edu.my/92642/19/92642_Influence%20of%20environmental%20factors%20on%20biology_SCOPUS.pdf
http://irep.iium.edu.my/92642/
https://link.springer.com/article/10.1007/s11356-021-16502-w
https://doi.org/10.1007/s11356-021-16502-w
_version_ 1729702909466116096
score 13.211869

Similar Items