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ometry, and ecology of yellowfin {_N eothunnus) and skipjack {Katsu- 

 u-onus) tuna in the waters of the eastern Pacific Ocean fished by the 

 nationals of the High Contracting Parties, and the kinds of fishes 

 commonly used as bait in the tuna fisheries, especially the anchovetta, 

 and of other kinds of fish taken by tuna fishing vessels ; and the effects 

 of natural factors and human activities on the abundance of the popu- 

 lations of fishes supporting all these fisheries. 



2. Collect and analyze information relating to current and past 

 conditions and trends of the populations of fishes covered by this 

 Convention. 



3. Study and appraise information concerning methods and pro- 

 cedures for maintaining and increasing the populations of fishes cov- 

 ered by this Convention. 



4. Conduct such fishing and other activities, on the high seas and 

 in waters which are under the jurisdiction of the High Contracting 

 Parties, as may be necessary to attain the ends referred to in sub- 

 paragraphs 1, 2, and 3 of this Article. 



5. Recommend from time to time, on the basis of scientific investi- 

 gations, proposals for joint action by the High Contracting Parties 

 designed to keep the populations of fishes covered by this Convention 

 at those levels of abundance which will permit the maximum sustained 

 catch. 



6. Collect statistics and all kinds of reports concerning catches and 

 the operations of fishing boats, and other information concerning the 

 fishing for fishes covered by this Convention, from vessels or persons 

 engaged in these fisheries. 



7. Publish or otherwise disseminate reports relative to the results 

 of its findings and such other reports as fall within the scope of this 

 Convention, as well as scientific, statistical, and other data relating 

 to the fisheries maintained by the nationals of the High Contracting 

 Parties for the fishes covered by this Convention. 



Article III 



The High Contracting Parties agree to enact such legislation as 

 may be necessary to carry out the purposes of this Convention. 



Article IV 



Nothing in this Convention shall be construed to modify any 

 existing treaty or convention with regard to the fisheries of the eastern 

 Pacific Ocean previously concluded by a High Contracting Party, 

 nor to preclude a High Contracting Party from entering into treaties 

 or conventions with other States regarding these fisheries, the term? 

 of which are not incompatible with the present Convention. 



Article V 



1. The present Convention shall be ratified and the instruments of 

 ratification shall be exchanged at Washington as soon as possible. 



