Effects of net depth reduction to Bigeye Tuna (Thunnus obesus) catch / William S. Dela Cruz and three others

By:

Dela Cruz, William S

Contributor(s):

Material type: Article

ArticleSet: Effects of net depth reduction to Bigeye Tuna (Thunnus obesus) catch /Publisher: Quezon City, Philippines : Bureau of Fisheries and Aquatic Resources , 2019Content type:

text

Media type:

computer

Carrier type:

online resource

ISSN:

2672-2836 (Online)

Subject(s):

In: Philippines. The Philippine Journal of Fisheries Volume 26, Issue no. 2 (July - December 2019), page 66 - 71Abstract: Analysis on the catch of Bigeye tuna (Thunnus obesus) from purse seine and ring nets of various net depths was conducted to assess the effect of reducing net depth as a compatible measure the Philippines has implemented and reducing the catch of Bigeye in its internal waters and the Exclusive Economic Zone (EEZ). The study was based on observer reports from ring net and purse seine fishing vessels operating in internal waters and EEZ as well as from group seine operations in the high seas pocket 1. Nets were classed by depth to determine and compare variations on the catch of Bigeye, catch rates and relative proportion, species composition, and fishing grounds. Results indicated that the catch of Bigeye is correlated with the depth of net, with a significantly higher catch of Bigeye in deeper nets. The result of the study is consistent with other studies elsewhere, and in consonance with the implementation of Fisheries Administrative Order 236 limiting the depth to 115 fathoms for ring net and purse seine operating in Philippine internal waters and the EEZ as a compatible measure to reduce the catch of Bigeye.

Average rating: 0.0 (0 votes)

Holdings
Item type	Current library	Collection	Call number	Vol info	Status	Date due	Barcode
Journal Article	NFRDI Central Office NFRDI KMRC Indexed Materials Collection	Electronic		Volume 26, Issue no. 2 (July - December 2019), page 66 - 71	Available		IMC000212
Journal	NFRDI Central Office NFRDI KMRC Institutional Repository Collection	Electronic	SH 1 .B9524 2019 vol. 26 no. 2 (Browse shelf(Opens below))	Volume 26, No. 2 (July - December 2019)	Available		IRC00036

Includes bibliographical references

Analysis on the catch of Bigeye tuna (Thunnus obesus) from purse seine and ring nets of various net depths was conducted to assess the effect of reducing net depth as a compatible measure the Philippines has implemented and reducing the catch of Bigeye in its internal waters and the Exclusive Economic Zone (EEZ). The study was based on observer reports from ring net and purse seine fishing vessels operating in internal waters and EEZ as well as from group seine operations in the high seas pocket 1. Nets were classed by depth to determine and compare variations on the catch of Bigeye, catch rates and relative proportion, species composition, and fishing grounds. Results indicated that the catch of Bigeye is correlated with the depth of net, with a significantly higher catch of Bigeye in deeper nets. The result of the study is consistent with other studies elsewhere, and in consonance with the implementation of Fisheries Administrative Order 236 limiting the depth to 115 fathoms for ring net and purse seine operating in Philippine internal waters and the EEZ as a compatible measure to reduce the catch of Bigeye.

English eng

There are no comments on this title.

to post a comment.