Peer Review History

Original SubmissionSeptember 24, 2022
Decision Letter - José M. Riascos, Editor

PONE-D-22-26514Spatio-temporal patterns of the crustacean demersal fishery discard from the south Humboldt Current System, based on scientific observer program (2014-2019)PLOS ONE

Dear Dr. Landaela,

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José M. Riascos, Ph.D.

Section Editor

PLOS ONE

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Reviewers' comments:

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Comments to the Author

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: The manuscript is very interesting because it analyzes the spatio-temporal patterns of the crustacean demersal fishery discard from the south Humboldt Current System, based on scientific observer program. Some corrections and analysis are required before being accepted to publish.

Line 69: change ... demersal crustacean fisheries by ... demersal crustacean chilean fisheries.

Delete table 1 and replace with a species accumulation curves using the samples-based rarefaction method for each year.

Line 127: Differences between industrial and artisanal fleets are also related to engine power and fishing gear dimensions. Please evaluate if there are differences between the industrial and artisanal fleets with respect to engine power and the dimensions of the fishing gear.

Figure 3: correct the names in the X and Y axis that are cut off.

Reviewer #2: The article evaluates detailed data on data collection by observers in the problem of discard, which is an important problem in fisheries. The applied statistics were chosen correctly. however, some additions are required for a more understandable flow. The parts that need to be added are indicated on the text.

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Reviewer #1: Yes: Jorge Paramo, Universidad del Magdalena, Colombia

Reviewer #2: Yes: Taner Yildiz

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Attachments
Attachment
Submitted filename: PONE-D-22-26514.pdf
Revision 1

Reviewer #1: The manuscript is very interesting because it analyzes the spatio-temporal patterns of the crustacean demersal fishery discard from the south Humboldt Current System, based on scientific observer program. Some corrections and analysis are required before being accepted to publish.

Line 69: change ... demersal crustacean fisheries by ... demersal crustacean chilean fisheries.

Resp. The change was done accordingly.

Delete table 1 and replace with a species accumulation curves using the samples-based rarefaction method for each year.

R. Table 1 was deleted following the suggestions by the reviewer. Also, we carried out the species accumulation curves by year.

Line 127: Differences between industrial and artisanal fleets are also related to engine power and fishing gear dimensions. Please evaluate if there are differences between the industrial and artisanal fleets with respect to engine power and the dimensions of the fishing gear.

R. In this version, we included the mean engine power of each fleet, including a statement indicating that the fishing gear was the same in dimensions for artisanal and industrial fleets.

Figure 3: correct the names in the X and Y axis that are cut off.

R. Figure 3, now Figure 4, was corrected and improved.

Reviewer #2: The article evaluates detailed data on data collection by observers in the problem of discard, which is an important problem in fisheries. The applied statistics were chosen correctly. however, some additions are required for a more understandable flow. The parts that need to be added are indicated on the text.

Line 126: commercial bottom trawler??? please clarify!

R. the explanation was included in the new version.

Line 123: please provide more informtion about the temporal scale (open period, closed season etc) of the fishery(ies)!

R. We included a new sentence “The Chilean crustacean fisheries are open throughout the year, except for September, when a reproductive ban occurs, since 2015.”

Line 127: I wonder if a metier analysis has been made for the region, can you give some information?

R. Until now, only a metier analysis has been made recently for the cardinalfish (Epigonus crassicaudus) fishery (Cubillos et al. 2022). However, those type of analysis still is lacking for the Chilean demersal crustacean fisheries.

Line 127: specify the fishing gear?

R. Now, we have included specifications of the fishing gear.

Line 127: use same mesh size in the cod-end? if they use bottom trawl?

R. Yes, all the fleet uses the same gear and mesh size, according to Chilean laws. This information is given in the new version of the ms.

Line 129: I wonder if there is a trend related to the daily vertical distribution of Merluccius gayi regarding night hauls, because it will definitely show itself in the discard.

R. Hauls were made during night (21:00 to 02:00 h) and day hours (09:00 to 20:00 hrs), but irrespective of the time of the day, the occurrence of M. gayi in the hauls was always high (95%).

Line 129: Can you provide information about haul duration such as minimum and maximum values?

R. This information (minimum, maximum, mean, one SD) was included in the new version.

Line 138: Who decided to discard frction of catch, fishers? please specified!

R. According to the Chilean laws, only the catches of the target species can be landed, and therefore, non-target species are discarded, e.g., thrown away at sea.

Line 138: These species are always discarded?

R. Yes, always.

Line 139: please provide more detailed information about this program and detail the observation processor!

R. We included a paragraph with a link to a web page, where there is more detailed information about this program, leaded by Instituto de Fomento Pesquero (IFOP, Chile).

Attachments
Attachment
Submitted filename: Responses to reviewers.docx
Decision Letter - José M. Riascos, Editor

Spatio-temporal patterns of the crustacean demersal fishery discard from the south Humboldt Current System, based on scientific observer program (2014-2019) PLOS ONE

PONE-D-22-26514R1

Dear Dr. Landaela,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

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Kind regards,

José M. Riascos, Ph.D.

Section Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments:

Formally Accepted
Acceptance Letter - José M. Riascos, Editor

PONE-D-22-26514R1

Spatio-temporal patterns of the crustacean demersal fishery discard from the south Humboldt Current System, based on scientific observer program (2014-2019)

Dear Dr. Landaeta:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

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Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Professor José M. Riascos

Section Editor

PLOS ONE

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