(12) Kobayashi, D. 2004. Unpubl. investigation with the document at the Pac. Isl. Seafood. Sci. Cent., Natl. Mar. Fish. Serv., 2570 Dole Path, Honolulu, Hello 96822-2396.
The effects of gender and you can times on the variables have been and looked at
(14) Uchiyama, J. H., and you can Roentgen. An excellent. Skillman. Unpubl. research on document within Pac. Isl. Seafood. Sci. Cent., Natl. Mar. Fish. Serv., 2570 Dole Highway, Honolulu, Hi 96822-2396.
Each other dolphinfish and you can wahoo end up in this new kinds complex out-of Pelagic Government Tool Variety towards West Pacific Regional Fishery Management Council (NMFS, 2001), where it represent a significant part of the commercial landings. Weight-size relationship are also utilized for transforming metrics for the level and you can recapture experiments and also in databases not having sometimes metric, in addition they are often used to suggest body position otherwise robustness off free Asian Sites adult dating seafood during the a stock (Le Cren, 1951). This study on the dolphinfish and you may wahoo arrived at Honolulu seafood market during 1988-89 means W-L predictor details centered on a great deal of proportions layer an extensive size diversity.
Oxenford and you may Hunte (1986b) plotted and you may visually opposed the fresh new W-L relationships of dolphinfish out of Vermont (Rose and you can Hassler, 1968), Florida (Beardsley, 1967), and Barbados (its investigation) and found nothing difference in this new W-L matchmaking of these locations from the west 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).
Earlier in the day research has worked briefly having sexual dimorphism away from dolphinfish. Specific has actually plotted new W-L relationships independently for males and you may ladies (Beardsley, 1967; Flower and you may Hassler, 1968; Chatterji and Ansari, 1985; and you may Oxenford and Hunte, 1986b) otherwise offered independent equations for males and you will people (Lasso and you can Zapata, 1999; Massuti mais aussi al., 1999) without bringing a mathematical justification into break up. Wang (1979) tabulated new mean W-L on their own for men and lady. Schuck (1951) and you may Beardsley (1967) just said that the latest imply W-L for men is actually higher than lady. This research mathematically examined the difference regarding W-L coefficients regarding male and female dolphinfish (Dining table step 1) as well as the empirical difference in forecast indicate W-L can be looked at from inside the Profile 5. Bannister (1976) visually opposed plots of land out-of W-L matchmaking out of dolphinfish caught throughout the Mediterranean having those caught away from Vermont about west Atlantic (Rose and you can Hassler, 1968). Estimated parameters or other analytical investigation to have journal-linearized W-L relationship away from Hawaiian dolphinfish are supplied so others can also be mathematically evaluate W-L coefficients away from dolphinfish from other areas and particularly other places of Pacific Basin (Desk 4).
Matsumoto (1967) receive 38 wahoo larvae and you may juveniles for the step one,643 examples regarding oblique plankton tows collected in the discover sea, thus a limited quantity of spawning could also are present overseas. Although not, a move to nearshore seas in-may having spawning from the summer was consistent with the increase in status and you may hook cost from the nearshore fisheries. A diagnosis now underway off geographic habits and you may moving forward off higher hook rate section went along to by Their state-situated longline collection shows that the greatest abundance section getting wahoo in this listing of new fleet was southwestern of your own islands year bullet however, spread northward on seaside finance companies distributed more step one,200 mi. during the summer. (12)
Arocha, F., L. An excellent. Marcano, Good. Larez, D. Altuve, and you can J. Alio. 1999. The latest fishery, group dimensions design and you will oocyte growth of dolphinfish, Coryphaena hippurus, into the Venezuela and adjacent oceans. Sci. Mar. 63(3-4):401-409.
Oxenford, H. A great. 1999. Biology of one's dolphinlish (Coryphaena hippurus) regarding the western main Atlantic: an assessment. Sci. Mar. 63(3-4):277-301.
(11) Capturing, J., Roentgen. Hocke, and you can R. Brainard. 2004. Epidermis acceleration and profiling drifters track prospective larval pathways during the Northwestern Destinations. Poster presentation at Northwestern Destinations Third Scientific Symposium, 2-, Hawaii Conference Center, Honolulu.
