Grouper spawning aggregations : protection and fishing regulations

Gouezo, Marine; Bukurrou, Asap; Priest, Mark; Rehm, Lincoln; Mereb, Geory; Olsudong, Dawnette; Merep, Arius; Polloi, Kevin; Andon, Lisa

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Grouper spawning aggregations : protection and fishing regulations

2015
By Gouezo, Marine ; Bukurrou, Asap ; Priest, Mark ; ...
Series: PICRC technical report ; no.15-13

[PDF-1.50 MB]

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Gouezo, Marine ; Bukurrou, Asap ; Priest, Mark ; Rehm, Lincoln ; Mereb, Geory ; ... More +

Gouezo, Marine ; Bukurrou, Asap ; Priest, Mark ; Rehm, Lincoln ; Mereb, Geory ; Olsudong, Dawnette ; Merep, Arius ; Polloi, Kevin ; Andon, Lisa Less -
Corporate Authors:

Palau International Coral Reef Center ; Coral Reef Conservation Program (U.S.) ; United States, National Ocean Service,

Palau International Coral Reef Center ; Coral Reef Conservation Program (U.S.) ; United States, National Ocean Service, Less -
NOAA Program & Office:

NOS (National Ocean Service)
Description:

In Palau, regulations are implemented to manage groupers and protect spawning aggregations. They include a seven-month closed season on grouper fishing during the main spawning season, and the permanent spatial closure of the two main fish spawning aggregation (FSA) sites. Since 2008, underwater visual census surveys were conducted at these sites and two additional unprotected reference sites, two and three days before the new moon lunar phase to monitor the abundance and biomass of groupers over time. Overall, our results demonstrated that, protected FSAs harbor significantly more groupers (up to 9 times higher) than reference sites during spawning times. Within the two FSAs, the abundance of Epinephelus fuscoguttatus (Meteungerel'temekai) increased over time and there was an increasing trend of Epinephelus polyphekadion (Ksau'temekai) at one of the FSAs. There was no change in abundance of Plectropomus areolatus (Tiau) but we observed high inter-month variability in their aggregative patterns. Despite some limitations, this study proves that management strategies currently implemented in Palau are effective and should be maintained. However, additional studies are needed to better understand the spawning aggregation patterns of P. areolatus in order to properly assess the effects of current management regimes on this species
Keywords:

[+]

Coral Reef Fishes Epinephelus Grouper Fisheries Law And Legislation Management Spawning
Series:

PICRC technical report ; no.15-13
Document Type:

Technical Report
Funding:

Funding: NOAA CRCP, NOAA National Ocean Service,; project number: 183;
Place as Subject:

Palau
Rights Information:

Public Domain
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urn:sha256:8a27f1770c70268337588c62a2e5fd8b1843f769d4085709ee15470d81343c3b
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https://repository.library.noaa.gov/view/noaa/14727/noaa_14727_DS1.pdf
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Grouper spawning aggregations : protection and fishing regulations

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