Stock comparison analyses and you can ecosystem activities can be increased with an increase of right morphometric dating

(12) Kobayashi, D. 2004. Unpubl. study on the file on Pac. Isl. Fish. Sci. Penny., Natl. Mar. Fish. Serv., 2570 Dole Highway, Honolulu, Hi 96822-2396.

The results out-of gender and you may day on the variables was basically plus examined

(14) Uchiyama, J. H., and R. A good. Skillman. Unpubl. studies into file in the Pac. Isl. Seafood. Sci. Cent., Natl. Mar. Seafood. Serv., 2570 Dole Street, Honolulu, Hello 96822-2396.

One another dolphinfish and you may wahoo fall into brand new kinds state-of-the-art out of Pelagic Administration Tool Species to the West Pacific Local Fishery Government Council (NMFS, 2001), where it represent an important part of the commercial landings. Weight-size dating are used for converting metrics during the tag and you may recapture studies and also in database not having often metric, plus they are often used to indicate looks standing otherwise robustness from seafood for the an inventory (Ce Cren, 1951). This study toward dolphinfish and wahoo got in the Honolulu fish auction throughout 1988-89 refers to W-L predictor variables based on countless specifications layer a broad size assortment.

Oxenford and you will Hunte (1986b) plotted and you will visually compared brand new W-L relationship of dolphinfish away from North carolina (Rose and you may Hassler, 1968), Fl (Beardsley, 1967), and you will Barbados (their study) and found nothing difference between the latest W-L relationships of the metropolitan areas throughout the western and you may main Atlantic

Male dolphinfish achieve larger sizes than females. The largest male during the sampling period measured 149 cm, whereas the largest female measured 137 cm. In the initial data examination consisting of 2,495 paired measurements, 13 observations were identified as outliers and deleted from all further analyses. Using data trimmed to a range of 65-137 cm FL, the differences in W-L parameters based on sex for dolphinfish were both significant (coefficient: p <0.01 and exponent: p <0.01; Table 1). Females and males were separately grouped by month of landing; data were trimmed to only include fish in the 90-135 cm FL range, and then analyzed by GLM. Other than March and April, most months covered about 90% or more of the trimmed length range. Month as a categorical factor was significant for both females (p < 0.05; Table 2) and males (p < 0.01; Table 3).

Previous research has worked temporarily which have sexual dimorphism away from dolphinfish. Particular provides plotted the newest W-L dating independently for men and you will females (Beardsley, 1967; Rose and you can Hassler, 1968; Chatterji and you will Ansari, 1985; and you may Oxenford and you can Hunte, 1986b) otherwise given separate equations for men and you may women (Lasso and you can Zapata, 1999; Massuti ainsi que al., 1999) as opposed to bringing a mathematical excuse to the breakup. Wang (1979) tabulated the brand new imply W-L separately for men and you will females. Schuck (1951) and you can Beardsley (1967) only said that the newest mean W-L for men was greater than ladies. This research statistically examined the real difference regarding W-L coefficients out of male and female dolphinfish (Desk step one) and empirical difference in forecast imply W-L can be viewed when you look at the Contour 5. Bannister (1976) visually opposed plots out of W-L matchmaking out of dolphinfish trapped on the Mediterranean that have men and women trapped out of New york from the western Atlantic (Flower and Hassler, 1968). Estimated variables and other analytical investigation to possess journal-linearized W-L dating from Hawaiian dolphinfish are provided thus others can also be mathematically examine W-L coefficients from dolphinfish from other parts and especially other areas of your Pacific Basin (Table 4).

Matsumoto (1967) discover 38 wahoo larvae and you will juveniles into the 1,643 samples out of oblique plankton tows built-up on the discover ocean, so a limited number of spawning may also occur overseas. Yet not, a relocate to nearshore waters in-may to have spawning in the june might be consistent with the increase in updates and you can hook cost in the nearshore fisheries. An analysis now started off geographical models and you may shifting out of higher connect speed components went to from the Their state-founded longline collection shows that the greatest abundance parts to own wahoo inside listing of the brand new collection try southwestern of your isles seasons bullet however, spread northward toward seaside banking companies distributed over 1,2 hundred mi. during the summer. (12)

Arocha, horny Adventure dating F., L. A. Marcano, A good. Larez, D. Altuve, and you can J. Alio. 1999. This new fishery, group dimensions design and you may oocyte growth of dolphinfish, Coryphaena hippurus, in the Venezuela and you can adjacent seas. Sci. Mar. 63(3-4):401-409.

Oxenford, H. Good. 1999. Biology of your dolphinlish (Coryphaena hippurus) regarding the west main Atlantic: a review. Sci. Mar. 63(3-4):277-301.

(11) Firing, J., Roentgen. Hocke, and you will R. Brainard. 2004. Body speed and you will profiling drifters track prospective larval pathways during the Northwestern Hawaiian islands. Poster demonstration at the Northwestern Island destinations 3rd Medical Symposium, 2-, The state Seminar Heart, Honolulu.