Assessment of the Hydrological Conditions of Carps Spawning Grounds in the Sylhet Haor Basins, and the Halda River System, Bangladesh

Round 1

Reviewer 1 Report

 

In my opinion this paper is an interesting study and authors evaluated the correlation between the carp spawning and hydrological conditions of the Sylhet Haor basin and Halda River using water quality parameters and water pollution index to find out the potential environmental variation in different spawning grounds of Indian major carps and to analyze their effect on spawning performance i.e., eggs and fry production.

Dear authors, thank you for submitting the manuscript to the journal of Water. Its topic is very interesting. However, the current version of the paper suffers from a number of weaknesses related to the empirical strategy used. I have the following comments/questions for the authors:

Abstract

·         Line 16. Don’t use abbreviation on the first time. Define full form for the first time than after use abbreviation only (Please check in the entire manuscript).

·         The abstract could be more specific. I suggest the authors should organize the abstract as well as main text in four sections, namely: scope, objectives, methods, results, conclusions. Also, abstract section should be completed with the results of the study.

·         Line 14. The methods were applied in this study not clear in the abstract section.

·         Add important results in the abstract section.

·         The authors ought to re-write the abstract so that it briefly presents the problem at hand, objectives of the study, methods used to achieve the objectives in logical order. Also, abstract section should be completed with the results of the study.

Introduction

·         In introduction chapter please focus on problem generally, on the basis of examples in the whole World, not your study area.

·         Add some facts and figures of surface water quality around the globe in your introduction.

·         Add some recent article to make your introduction more attractive and strong. I propose to add this survey method in the overview section of the introduction section, based on the latest literature. Please replace old citations (if it is possible) or add citations of newest literature.

https://doi.org/10.1016/j.proenv.2012.01.115

https://doi.org/10.3390/w14071131

https://doi.org/10.3390/w13162258

 Materials and Methods

Study area and duration

·         Describe all the features of the study area in brief including climate, topography, geology, and hydrogeology?

·         Would you please give more information about Halda River, Surma River and Tangura Haor (e.g., max depth, average precipitation and evaporation)?

·         Sampling locations were selected carefully within the studied area to have a good representation of the spatial variability of quality indicators across-section of water quality monitoring. What criteria where analyzed to select this locations?

Water quality measurement

·         Please give detailed information about the instruments were used for detection the water quality parameters (e.g., accuracy, manufacturer).

·         Please provide detailed detection methods and quality control results?

·         Please support your methods by providing appropriate references or give the guidelines used to analyze the water quality parameters.

·         Please support your methods by providing appropriate references or give the guidelines used and equations.

Discussion

·         Write the practical applications of your work in a separate section, before the conclusions and provide your good perspectives.

·         What long-term impacts will it have on environmental protection and the wider public or the field following the completion of the research?

Conclusion

·         Concise the text in conclusion and add future work in order to recommend your work. Shorten the length of each and every paragraph by adding only relevant and major findings in your study.

 

Please respond to all of those comments in the revised manuscript by pointing out precisely and concisely on which page and in which line you have incorporated your response one by one.

Comments for author File: Comments.pdf

Author Response

Dear respected reviewer,

Thank you for reviewing our manuscript. Please check the attached authors' response letter for detailed notes.

Kind regards.

Author Response File: Author Response.pdf

Reviewer 2 Report

Authors have described their work beautifully. However, I suggest hem to consider following points to improve their manuscript further (attachment).

Comments for author File: Comments.pdf

Author Response

Dear respected reviewer,

Thank you for reviewing our manuscript. Please check the attached authors' response letter for detailed notes.

Kind regards.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

In my opinion this paper is an interesting study and authors evaluated the correlation between the carp spawning and hydrological conditions of the Sylhet Haor basin and Halda River using water quality parameters and water pollution index to find out the potential environmental variation in different spawning grounds of Indian major carps and to analyze their effect on spawning performance i.e., eggs and fry production.

The article is written correctly, includes a discussion of the research findings, and a good review of the literature. The results are presented in a clearly structured manner. The paper has a logical structure and clearly describes the methodology. The manuscript has been significantly improved and can now be accepted in current form.