(12) Kobayashi, D. 2004. Unpubl. studies with the file in the Pac. Isl. Fish. Sci. Penny., Natl. Mar. Fish. Serv., 2570 Dole Roadway, Honolulu, Hi 96822-2396.

(14) Uchiyama, J. H., and you will R. A. Skillman. Unpubl. studies on file during the Pac. Isl. Fish. Sci. Penny., Natl. Mar. Fish. Serv., 2570 Dole Road, Honolulu, Hi 96822-2396.

Each other dolphinfish and you will wahoo belong to the brand new variety cutting-edge regarding Pelagic Management Equipment Variety with the West Pacific Local Fishery Management Council (NMFS, 2001), in which it show an essential element of the commercial landings. Weight-size matchmaking also are useful converting metrics during the mark and you may recapture experiments and in databases devoid of possibly metric, and they can be used to suggest muscles status otherwise robustness of fish during the a stock (Le Cren, 1951). This research to the dolphinfish and you can wahoo landed within Honolulu fish auction while in the 1988-89 identifies W-L predictor parameters centered on a huge number of measurements coating an extensive dimensions range.

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 dealt temporarily with sexual dimorphism of dolphinfish. Certain features plotted this new W-L matchmaking individually for men and you may females (Beardsley, 1967; Rose and Hassler, 1968; Chatterji and you can Ansari, 1985; and you will Oxenford and you will Hunte, 1986b) otherwise considering independent equations for males and you can girls (Lasso and you can Zapata, 1999; Massuti et al., 1999) instead of getting a statistical excuse for the break up. Wang (1979) tabulated brand new mean W-L individually for men and you can people. Schuck (1951) and you may Beardsley (1967) just asserted that the latest imply W-L for men is actually higher than girls. This research statistically examined the real difference in the W-L coefficients regarding men and women dolphinfish (Table step one) and the empirical difference in forecast suggest W-L can be looked at in the Figure 5. Bannister (1976) visually opposed plots of W-L dating away from dolphinfish caught about Mediterranean which have people caught away from New york in the western Atlantic (Flower and you will Hassler, 1968). Estimated variables or other mathematical studies getting record-linearized W-L relationship out of Hawaiian dolphinfish are offered therefore others can statistically evaluate W-L coefficients away from dolphinfish off their areas and especially other areas of one’s Pacific Basin (Desk cuatro).

The consequences of sex and you will week on the variables were and checked-out

Matsumoto (1967) discovered 38 wahoo larvae and you will juveniles inside the step 1,643 trials out-of oblique plankton tows collected on unlock water, very a limited quantity of spawning could also can be found offshore. not, a go on to nearshore waters in-may to own spawning on the june might possibly be consistent with the increase in reputation and you may connect costs regarding nearshore fisheries. An analysis now underway out of geographical patterns and you will shifting out of high connect rate section went along to from the Their state-depending longline fleet suggests that the highest variety areas to possess wahoo within range of the new fleet are southwest of one’s countries seasons round however, pass on northward for the seaside financial institutions marketed over step one,2 hundred mi. in summer. (12)

Arocha, F., L. A. Marcano, Good. Larez, D. Altuve, and J. Alio. 1999. Brand new fishery, market proportions framework and you can oocyte growth of dolphinfish, Coryphaena hippurus, into the Venezuela and adjoining seas. Sci. Mar. 63(3-4):401-409.

Oxenford and you may Hunte (1986b) plotted and you may aesthetically compared the brand new W-L relationships out of dolphinfish off New york (Flower and you will Hassler, 1968), Florida (Beardsley, 1967), and you may Barbados (their analysis) and discovered little difference between this new W-L dating of those metropolises throughout the western and you can central Atlantic

Oxenford, H. A beneficial. 1999. Biology of the dolphinlish (Coryphaena hippurus) in the west central Atlantic: an assessment. Sci. Mar. 63(3-4):277-301.

(11) Capturing, J., R. Hocke, and you will R. Brainard. 2004. Surface speed and you can profiling drifters song possible larval pathways in the Northwestern Destinations. Poster demonstration on Northwestern Hawaiian islands 3rd Medical Symposium, 2-, The state Discussion Cardio, Honolulu.