Inventory research analyses and you will ecosystem patterns shall be enhanced with increased specific morphometric dating

Inventory research analyses and you will ecosystem patterns shall be enhanced with increased specific morphometric dating

(12) Kobayashi, D. 2004. Unpubl. research for the file at Pac. Isl. Fish. Sci. Penny., Natl. Mar. Fish. Serv., 2570 Dole Path, Honolulu, Hey 96822-2396.

(14) Uchiyama, J. H., and Roentgen. A good. Skillman. Unpubl. studies into the file from the Pac. Isl. Seafood. Sci. Cent., Natl sudy oturum açma sorunu. Mar. Fish. Serv., 2570 Dole Road, Honolulu, Hello 96822-2396.

One another dolphinfish and you may wahoo belong to new varieties state-of-the-art out of Pelagic Government Unit Varieties for the West Pacific Regional Fishery Administration Council (NMFS, 2001), where they depict an essential element of the commercial landings. Weight-duration dating are also used in transforming metrics during the level and recapture tests and also in databases devoid of both metric, plus they are often used to suggest human anatomy updates otherwise robustness off seafood for the a stock (Ce Cren, 1951). This study on dolphinfish and you may wahoo landed from the Honolulu seafood auction during 1988-89 identifies W-L predictor parameters centered on countless measurements covering a wide proportions variety.

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 that have intimate dimorphism out-of dolphinfish. Specific possess plotted new W-L matchmaking individually for men and female (Beardsley, 1967; Rose and you may Hassler, 1968; Chatterji and you can Ansari, 1985; and Oxenford and you may Hunte, 1986b) otherwise provided separate equations for males and girls (Lasso and you can Zapata, 1999; Massuti mais aussi al., 1999) in the place of getting an analytical justification into breakup. Wang (1979) tabulated new suggest W-L separately for men and you can women. Schuck (1951) and you may Beardsley (1967) simply asserted that the brand new mean W-L for males is more than female. This research mathematically looked at the difference in the W-L coefficients off female and male dolphinfish (Table step 1) while the empirical difference between predict suggest W-L can be looked at during the Contour 5. Bannister (1976) visually compared plots out of W-L relationship from dolphinfish stuck about Mediterranean having men and women stuck regarding Vermont regarding west Atlantic (Flower and you may Hassler, 1968). Estimated parameters and other statistical analysis to possess log-linearized W-L matchmaking out of Hawaiian dolphinfish are supplied thus someone else can also be statistically contrast W-L coefficients from dolphinfish from other portion and especially other places of the Pacific Basin (Desk cuatro).

The effects regarding sex and you can month to the variables was basically in addition to examined

Matsumoto (1967) found 38 wahoo larvae and you may juveniles for the 1,643 products away from oblique plankton tows collected from the unlock ocean, thus a small level of spawning might also are present overseas. Yet not, a proceed to nearshore waters in-may to have spawning in the june might be consistent with the rise in position and you will hook pricing regarding nearshore fisheries. An analysis now underway away from geographical patterns and you will moving forward out-of high connect rates parts went along to of the Their state-mainly based longline collection suggests that the greatest abundance section to own wahoo within this a number of the newest collection is actually southwestern of your isles year bullet but pass on northward towards the coastal banks delivered more than step 1,2 hundred mi. in summer. (12)

Arocha, F., L. Good. Marcano, A good. Larez, D. Altuve, and J. Alio. 1999. The newest fishery, demographic proportions build and you will oocyte development of dolphinfish, Coryphaena hippurus, inside Venezuela and you will adjacent seas. Sci. Mar. 63(3-4):401-409.

Oxenford and Hunte (1986b) plotted and aesthetically compared the fresh new W-L relationship from dolphinfish out-of New york (Rose and you can Hassler, 1968), Florida (Beardsley, 1967), and you may Barbados (the investigation) and discovered little difference in the fresh W-L relationship of these towns and cities in the west and central Atlantic

Oxenford, H. A. 1999. Biology of the dolphinlish (Coryphaena hippurus) regarding west 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 possible larval pathways inside the Northwestern Island destinations. Poster speech on Northwestern Hawaiian islands Third Medical Symposium, 2-, Hawaii Discussion Cardio, Honolulu.

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