Inventory analysis analyses and you can environment activities should be enhanced with more accurate morphometric relationships

  • Homepage
  • Posts
  • Inventory analysis analyses and you can environment activities should be enhanced with more accurate morphometric relationships

Inventory analysis analyses and you can environment activities should be enhanced with more accurate morphometric relationships

(12) Kobayashi, D. 2004. Unpubl. study with the document during the Pac. Isl. Fish. Sci. Cent., Natl. Mar. Seafood. Serv., 2570 Dole Street, Honolulu, Hi 96822-2396.

The results regarding intercourse and you can month into parameters were along with checked

(14) Uchiyama, J. H., and Roentgen. A beneficial. Skillman. Unpubl. analysis toward document in the Pac. Isl. Seafood. Sci. Penny., Natl. Mar. Fish. Serv., 2570 Dole Roadway, Honolulu, Hey 96822-2396.

Each other dolphinfish and you can wahoo end up in the latest types advanced away from Pelagic Management Equipment Variety toward West Pacific Regional Fishery Administration Council (NMFS, 2001), in which they depict an essential element of the commercial landings. Weight-duration matchmaking are also used in changing metrics in the mark and recapture studies plus in databases not having sometimes metric, as well as can be used to indicate human body updates or robustness from seafood when you look at the an inventory (Ce Cren, 1951). This study towards dolphinfish and you will wahoo got at the Honolulu fish auction throughout the 1988-89 relates to W-L predictor parameters according to 1000s of proportions level a wide dimensions assortment.

Oxenford and you will Hunte (1986b) plotted and you will aesthetically opposed new W-L matchmaking off dolphinfish away from New york (Rose and you may Hassler, 1968), Fl (Beardsley, 1967), and you will Barbados (the studies) and found absolutely nothing difference in the new W-L matchmaking of the places on 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).

Past research has dealt temporarily that have intimate dimorphism regarding dolphinfish. Certain features plotted the latest W-L relationships alone for men and you may lady (Beardsley, 1967; Flower and you will Hassler, 1968; Chatterji and you may Ansari, 1985; and you may Oxenford and you may Hunte, 1986b) or given separate equations for men and you can female (Lasso and you can Zapata, 1999; Massuti mais aussi al., 1999) in place of providing an analytical reason on separation. Wang (1979) tabulated the brand new mean W-L by themselves for men and you will lady. Schuck (1951) and Beardsley (1967) merely asserted that the brand new suggest W-L for males was greater Dog dating site than women. This study statistically checked out the difference throughout the W-L coefficients out of men and women dolphinfish (Dining table step 1) and the empirical difference in predicted mean W-L can be seen for the Contour 5. Bannister (1976) aesthetically compared plots of land of W-L relationships away from dolphinfish stuck from the Mediterranean having people trapped of New york on west Atlantic (Rose and you may Hassler, 1968). Estimated variables or any other mathematical research to have diary-linearized W-L relationships from Hawaiian dolphinfish are given therefore anyone else can mathematically contrast W-L coefficients out of dolphinfish from other portion and particularly other areas of your own Pacific Basin (Desk 4).

Matsumoto (1967) found 38 wahoo larvae and you may juveniles during the step 1,643 samples out-of oblique plankton tows compiled regarding open sea, so a restricted amount of spawning might exist offshore. However, a go on to nearshore oceans in may having spawning about june might possibly be consistent with the rise in reputation and you can catch cost about nearshore fisheries. A diagnosis now started off geographical models and you can progressing off large hook price elements went along to by the Their state-based longline fleet suggests that the highest abundance elements to have wahoo contained in this listing of the latest fleet was southwest of the countries year bullet however, pass on northward into the coastal banking institutions distributed more than 1,200 mi. in summer. (12)

Arocha, F., L. An effective. Marcano, Good. Larez, D. Altuve, and you will J. Alio. 1999. The fresh fishery, group proportions design and you will oocyte development of dolphinfish, Coryphaena hippurus, for the Venezuela and you will adjoining waters. Sci. Mar. 63(3-4):401-409.

Oxenford, H. A good. 1999. Biology of your dolphinlish (Coryphaena hippurus) regarding the west central Atlantic: a review. Sci. Mar. 63(3-4):277-301.

(11) Capturing, J., R. Hocke, and you can R. Brainard. 2004. Epidermis acceleration and you will profiling drifters track possible larval routes when you look at the Northwestern Destinations. Poster demonstration on Northwestern Destinations 3rd Scientific Symposium, 2-, Hawaii Meeting Cardiovascular system, Honolulu.