The National Marine Fisheries Service (NMFS) does not approve, recommend or en- 

 dorse any proprietary product or proprietary material mentioned in this publication. 

 No reference shall be made to NMFS, or to this publication furnished by NMFS, in 

 any advertising or sales promotion which would indicate or imply that NMFS ap- 

 proves, recommends or endorses any proprietary product or proprietary material 

 mentioned herein, or which has as its purpose an intent to cause directly or indirect- 

 ly the advertised pro<fyjct.to be us/*d or purchased because of this NMFS publication. 

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