(12) Kobayashi, D. 2004. Unpubl. study to your document on Pac. Isl. Fish. Sci. Cent., Natl. Mar. Seafood. Serv., 2570 Dole Roadway, Honolulu, Hey 96822-2396.
The effects out of sex and you can times with the details were also checked
(14) Uchiyama, J. H., and Roentgen. A beneficial. Skillman. Unpubl. data into the file within Pac. Isl. Seafood. Sci. Cent., Natl. Mar. Fish. Serv., 2570 Dole Highway, Honolulu, Hi 96822-2396.
One another dolphinfish and wahoo end up in the brand new variety complex out-of Pelagic Administration Unit Kinds toward West Pacific Regional Fishery Management Council (NMFS, 2001), where it portray an essential component of the economic landings. Weight-duration relationship are also used for changing metrics during the tag and you will recapture experiments as well as in database devoid of either metric, as well as can be used to suggest system standing otherwise robustness out of fish into the a stock (Le Cren, 1951). This study toward dolphinfish and you will wahoo landed in the Honolulu fish market during 1988-89 makes reference to W-L predictor variables predicated on 1000s of dimensions covering an extensive dimensions diversity.
Oxenford and you may Hunte (1986b) plotted and aesthetically compared the W-L dating of dolphinfish regarding Vermont (Flower and you will Hassler, 1968), Fl (Beardsley, 1967), and you can Barbados (its studies) and discovered nothing difference between the latest W-L dating of those towns 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).
Early in the day studies have dealt briefly which have intimate dimorphism from dolphinfish. Certain possess plotted the W-L dating separately for men and you may people (Beardsley, 1967; Flower and you can Hassler, 1968; Chatterji and you will Ansari, 1985; and you will Oxenford and Hunte, 1986b) otherwise provided independent equations for men and you can female (Lasso and you can Zapata, 1999; Massuti mais aussi al., 1999) instead getting an analytical justification on the break up. Wang (1979) tabulated the fresh new imply W-L separately for men and you may females. Schuck (1951) and you may Beardsley (1967) only asserted that the indicate W-L for males are higher than women. This study statistically tested the difference from the W-L coefficients away from male and female dolphinfish (Desk 1) additionally the empirical difference between predicted indicate W-L can be looked at inside Contour 5. Bannister (1976) aesthetically opposed plots from W-L dating regarding dolphinfish stuck on Mediterranean that have those trapped out-of New york on west Atlantic (Flower and you will Hassler, 1968). Projected parameters or other statistical analysis getting diary-linearized W-L dating out of Hawaiian dolphinfish are given therefore others can be mathematically compare W-L coefficients out of dolphinfish off their components and especially other places of the Pacific Basin (Dining table 4).
Matsumoto (1967) located 38 wahoo larvae and juveniles inside the step 1,643 examples away from oblique plankton tows accumulated on the open sea, therefore a restricted number of spawning may also occur overseas. Yet not, a move to nearshore waters in may to have spawning throughout the summer is consistent with the escalation in updates and you may hook prices throughout the nearshore fisheries. An analysis now underway away from https://datingranking.net/over-50-dating/ geographic designs and you may moving on regarding highest catch speed portion went to because of the Their state-based longline fleet suggests that the best abundance section having wahoo within list of the brand new collection was southwest of one’s countries seasons bullet but spread northward for the coastal banking companies marketed over 1,2 hundred mi. in summer. (12)
Arocha, F., L. A great. Marcano, An excellent. Larez, D. Altuve, and J. Alio. 1999. The fresh new fishery, demographic size structure and oocyte development of dolphinfish, Coryphaena hippurus, inside the Venezuela and you will surrounding seas. Sci. Mar. 63(3-4):401-409.
Oxenford, H. An effective. 1999. Biology of dolphinlish (Coryphaena hippurus) from the west main Atlantic: an assessment. Sci. Mar. 63(3-4):277-301.
(11) Shooting, J., R. Hocke, and you will Roentgen. Brainard. 2004. Body speed and you may profiling drifters song possible larval pathways in Northwestern Destinations. Poster presentation in the Northwestern Island destinations 3rd Scientific Symposium, 2-, The state Discussion Center, Honolulu.
