(12) Kobayashi, D. 2004. Unpubl. analysis on the file at Pac. Isl. Fish. Sci. Cent., Natl. Mar. Fish. Serv., 2570 Dole Road, Honolulu, Hey 96822-2396.
The consequences regarding gender and you can week on variables was indeed plus looked at
(14) Uchiyama, J. H., and you will Roentgen. A good. Skillman. Unpubl. data on file in the Pac. Isl. Seafood. Sci. Cent., Natl. Mar. Seafood. Serv., 2570 Dole Highway, Honolulu, Hello 96822-2396.
Each other dolphinfish and you can wahoo fall into the types advanced off Pelagic Management Device Species towards Western Pacific Local Fishery Government Council (NMFS, 2001), where it depict a significant part of the commercial landings. Weight-duration dating also are useful changing metrics inside mark and you can recapture studies and in databases lacking either metric, and additionally they can be used to suggest body position or robustness away from fish within the an inventory (Le Cren, 1951). This study to your dolphinfish and you can wahoo landed from the Honolulu seafood auction throughout the 1988-89 refers to W-L predictor details centered on thousands of measurements level a wide size assortment.
Oxenford and you will datingranking.net/lds-dating/ Hunte (1986b) plotted and you may aesthetically opposed the new W-L relationships from dolphinfish out of Vermont (Flower and you will Hassler, 1968), Fl (Beardsley, 1967), and you will Barbados (their study) and found absolutely nothing difference in the fresh W-L relationship of these places about western and you will central 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 having intimate dimorphism away from dolphinfish. Particular has actually plotted this new W-L relationships independently for men and people (Beardsley, 1967; Flower and you may Hassler, 1968; Chatterji and Ansari, 1985; and you may Oxenford and you can Hunte, 1986b) otherwise offered independent equations for males and you will female (Lasso and Zapata, 1999; Massuti ainsi que al., 1999) without taking a mathematical excuse towards the separation. Wang (1979) tabulated the newest mean W-L separately for men and you will girls. Schuck (1951) and you may Beardsley (1967) only asserted that new indicate W-L for males is more than females. This study statistically checked out the difference in the W-L coefficients off female and male dolphinfish (Dining table 1) additionally the empirical difference in forecast imply W-L can be looked at within the Shape 5. Bannister (1976) aesthetically opposed plots of W-L matchmaking away from dolphinfish stuck regarding Mediterranean that have the individuals trapped out-of New york on western Atlantic (Rose and you will Hassler, 1968). Projected variables and other mathematical data having record-linearized W-L relationships away from Hawaiian dolphinfish are given very anyone else can also be mathematically compare W-L coefficients away from dolphinfish off their section and especially other areas of your Pacific Basin (Desk 4).
Matsumoto (1967) located 38 wahoo larvae and you may juveniles in the step one,643 trials regarding oblique plankton tows accumulated in the discover sea, very a small amount of spawning might also are present overseas. Although not, a go on to nearshore oceans in may having spawning regarding june might be similar to the upsurge in reputation and hook cost on the nearshore fisheries. A diagnosis today started regarding geographical activities and you can moving on regarding high catch speed components decided to go to from the The state-created longline fleet suggests that the highest variety parts for wahoo in this set of the brand new fleet was southwest of your countries year bullet however, bequeath northward into coastal financial institutions delivered more step 1,200 mi. in summer. (12)
Arocha, F., L. A great. Marcano, A great. Larez, D. Altuve, and J. Alio. 1999. New fishery, demographic size design and you may oocyte development of dolphinfish, Coryphaena hippurus, inside the Venezuela and you can adjacent waters. Sci. Mar. 63(3-4):401-409.
Oxenford, H. An excellent. 1999. Biology of dolphinlish (Coryphaena hippurus) regarding western main Atlantic: an evaluation. Sci. Mar. 63(3-4):277-301.
(11) Shooting, J., Roentgen. Hocke, and you may R. Brainard. 2004. Body acceleration and you will profiling drifters track potential larval pathways inside Northwestern Island destinations. Poster presentation in the Northwestern Hawaiian islands Third Medical Symposium, 2-, Their state Convention Heart, Honolulu.
