COMMERCIAL FISHERIES REVIEW 



Vol. 28, No. 7 



Among the 31 species, each accounting for less than 1.0 percent by weight of all samples, 11 

 are edible and contributed 2.9 percent of the sample by weight and 2.5 percent by number of 

 individuals. Thus, 17 edible forms comprised 79.7 percent of the industrialfishcatchby weight 

 and 79.8 percent by number of individuals. The contribution of 9 edible species found among 

 the 39 forms that occurred infrequently was estimated to be less than 0.1 percent of the catch 

 by weight and was not considered. 



Table 1 - Composition of 53 Industrial Fish Samples from 1962 Trawl Fishery in North Carolina, Showing by Species 



and Categories, Number of Individuals Counted, Weight in Pounds, Percent Composition of Samples 



by Number of Individuals and Weight, and Average Weight of Individuals 



Species 



No. of 

 Ind. 



Wt. in 

 Lbs. 



% Comp. 

 by No. 



% Comp. 

 by Wt. 



Avg. Wt. 

 Ind. (Oz.) 



Common Name 



Scientific Name 



Croaker 



Spot 



Butterfish 



Longspine porgy 



Hogfish 



Gray trout 



Pinfish 



Sand perch 



Clear-nose ray 



Micropoqon undulatus 

 Leiostomus xanthurus 

 Poronotus triacanthus 

 Stenotomus caprinus 

 Orthopristis chrysopterus 

 Cynoscion reqalis 

 Laqodon rhomboides 

 Bairdiella chrysura 



26,417 



12,327 



5,891 



3,893 



2,868 



1,916 



1,928 



856 



67 



2,765.9 

 1,129.8 

 490.9 

 324.2 

 277.2 

 203.4 

 126.9 

 125.2 

 82.7 



40.6 

 19.0 

 9.1 

 6.0 

 4.4 

 2.9 

 3.0 

 1.3 

 0.1 



42,6 

 17.4 

 7.5 

 5.0 

 4.3 

 3.1 

 1.9 

 1.9 

 1.3 



1.7 

 1.5 

 1.3 

 1.3 

 1.5 

 1.7 

 1.1 

 2.3 

 19.7 



Raja eglanteria 



31 species, each accounting for less than 

 1.0% by weight 



5,523 



571.7 



8.4 



8.8 





39 species occurring infrequently 



3,323 



149.6 



5.0 



2.3 



_ 



Invertebrates 



- 



251.3 



- 



3.9 



- 



Totals 



65,009 



6,498.8 



99.9 



100.0 



- 





Nonedible species of fish and invertebrates comprised the remaining 20.3 percent of the 

 trash fishby weight and 20.2 percent by number of individuals. Of those, the longspine porgy, pin- 

 fish, and clear -nose ray accounted for almost one -half, both in weight and number of individ- 

 uals. 



If the pounds sampled for a given species are divided by the number of individuals count- 

 ed for that species, an estimate of the average size of individual fish can be obtained. The 

 last column in table 1 provides this estimate of size in ounces for the nine species listed sep- 

 arately. The smallest species, pinfish, averaged 1.1 oz. and the largest, the clear-nose ray, 

 averaged 19.7 percent. With the exception of this ray the remaining eight ranged in average 

 from 1.1 to 2.3 oz. For these species such a weight indicated young-of-the-year. 



SPECIES COMPOSITION OF CATCH IN LONG - HAUL AND POUND-NET FISHERY : In 

 table 2 eight species appearing most frequently in this fishery are listed in the same manner 

 as those in table 1. These species accounted for almost 91 percent of the sample weight in 

 this fishery and about 94 percent by number of individuals. 



Table 2 - Eight Species Occurring Most Frequently in 51 Industrial Fish Samples from 1962 Long-Waxil and Pound -Net | 



Fishery Showing Number of Individuals Counted, Weight of Sample 



Percent Composition of Samples 





by Weight and by Number of Individuals, and Average 



Weight of Individuals 





Species 



No. of 

 Ind. 



Wt. in 

 Lbs. 



% Comp. 

 by No. 



5^ Comp. 

 by Wt. 



Avg. wt, 

 Ind. (Oz,) 



Common Name 



Scientific Name 



Menhaden 



Brevoortia tyrannus 



14, 384 



2,799.9 



33.3 



42.9 



3.1 



'infish 



Laqodon rhomboides 



17,236 



1,968.2 



39.9 



30.2 



1.8 



Thread herring 



Opisthonema oglinvim 



3,470 



443.6 



8.0 



6.8 



2.0 



iluefish 



Pomatomus saltatrix 



1,313 



223.1 



3.0 



3.4 



2.7 



Spot 



Leiostomus xanthurus 



1,956 



185.9 



4.5 



2.8 



1.5 



-logfish 



Orthopristis chrysopterus 



1,325 



179.2 



3.1 



2,7 



2.2 



land perch 



Bairdiella chrysura 



563 



71.2 



1.3 



1.1 



2.0 



Croaker 



Micropoqon undulatus 



353 



65,1 



0.8 



1.0 



2,9 



Percent of sample 





. 93.9 



90.9 







Three nonedible species --menhaden, pinfish, and thread herring--accounted for 79.9 

 percent of the total sample by weight and 81.2 percent by number of individuals. Five edible 

 species --bluefish, spot, hogfish, sand perch, and croaker --accounted for 11.0 percent by 

 weight and 12.7 percent by number of individuals. The remainder of the long-haul and pound- 



