Inventory evaluation analyses and environment patterns shall be improved with more specific morphometric dating

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

The consequences from intercourse and times for the variables have been along with checked

(14) Uchiyama, J. H., and you can R. A beneficial. Skillman. Unpubl. analysis on document during the Pac. Isl. Seafood. Sci. Penny., Natl. Mar. Seafood. Serv., 2570 Dole Highway, Honolulu, Hi 96822-2396.

Each other dolphinfish and you can wahoo belong to the types advanced off Pelagic Administration Equipment Varieties on West Pacific Local Fishery Government Council (NMFS, 2001), where they show https://datingranking.net/bdsm-sites/ a significant part of the commercial landings. Weight-length matchmaking also are useful converting metrics in tag and you may recapture experiments along with databases not having sometimes metric, and are often used to imply system status otherwise robustness away from seafood within the an inventory (Ce Cren, 1951). This study toward dolphinfish and you can wahoo got within Honolulu seafood public auction while in the 1988-89 describes W-L predictor details according to a huge number of specifications coating a broad proportions range.

Oxenford and Hunte (1986b) plotted and visually opposed new W-L relationship out of dolphinfish out-of New york (Flower and Hassler, 1968), Florida (Beardsley, 1967), and you can Barbados (its data) and discovered nothing difference in the fresh new W-L relationships among these towns and cities in the western and you will 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 research has worked briefly with sexual dimorphism off dolphinfish. Some has actually plotted the newest W-L dating alone for males and you will women (Beardsley, 1967; Rose and you will Hassler, 1968; Chatterji and you may Ansari, 1985; and Oxenford and you will Hunte, 1986b) or offered separate equations for men and you may ladies (Lasso and you can Zapata, 1999; Massuti mais aussi al., 1999) without bringing an analytical justification toward break up. Wang (1979) tabulated the fresh new indicate W-L individually for males and you may girls. Schuck (1951) and you will Beardsley (1967) merely said that this new imply W-L for males are greater than lady. This research statistically tested the difference on the W-L coefficients regarding male and female dolphinfish (Dining table step 1) and the empirical difference in forecast suggest W-L can be viewed into the Profile 5. Bannister (1976) aesthetically compared plots out-of W-L dating regarding dolphinfish trapped about Mediterranean which have those people trapped off Vermont on west Atlantic (Flower and you can Hassler, 1968). Estimated parameters and other statistical studies having journal-linearized W-L dating from Hawaiian dolphinfish are offered very someone else is also statistically evaluate W-L coefficients away from dolphinfish from other components and particularly other places of one’s Pacific Basin (Desk 4).

Matsumoto (1967) receive 38 wahoo larvae and you may juveniles from inside the step 1,643 samples off oblique plankton tows amassed on discover water, therefore a restricted quantity of spawning might can be found offshore. Although not, a go on to nearshore oceans in may getting spawning in the june will be similar to the boost in position and you may hook cost regarding the nearshore fisheries. An analysis now underway from geographical activities and you may moving on of higher hook price components decided to go to by The state-depending longline collection implies that the greatest abundance components to possess wahoo in this set of the brand new collection is southwest of the islands 12 months bullet however, spread northward for the seaside financial institutions delivered more than step one,200 mi. in summer. (12)

Arocha, F., L. Good. Marcano, An effective. Larez, D. Altuve, and you may J. Alio. 1999. Brand new fishery, demographic size structure and you may oocyte development of dolphinfish, Coryphaena hippurus, within the Venezuela and you can adjacent waters. Sci. Mar. 63(3-4):401-409.

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

(11) Capturing, J., R. Hocke, and you can Roentgen. Brainard. 2004. Surface acceleration and you will profiling drifters tune potential larval routes in the Northwestern Destinations. Poster speech at Northwestern Destinations Third Scientific Symposium, 2-, Hawaii Meeting Center, Honolulu.