Age, Growth, and Reproduction of the Dolphin, Coryphaena hippurus, in the Straits of Florida

Copeia ◽  
1967 ◽  
Vol 1967 (2) ◽  
pp. 441 ◽  
Author(s):  
Grant L. Beardsley
Keyword(s):  
Straits Of Florida ◽  
Coryphaena Hippurus ◽  
Growth And Reproduction

scholarly journals Age, Growth and Reproduction of Coryphaena hippurus (Linnaeus, 1758) in Maltese Waters, Central Mediterranean

2015 ◽  
Vol 16 (2) ◽  
pp. 334 ◽  
Author(s):  
M. GATT ◽  
M. DIMECH ◽  
P. J. SCHEMBRI
Keyword(s):  
Fork Length ◽  
Longline Fishery ◽  
Central Mediterranean ◽  
Coryphaena Hippurus ◽  
Daily Increments ◽  
Males And Females ◽  
Longline Fisheries ◽  
Fish Aggregating Devices ◽  
Growth And Reproduction ◽  
Age Reading

Age, growth and reproduction of the dolphinfish Coryphaena hippurus Linnaeus, 1758 collected from the Central Mediterranean in the period 2004-2010 by the traditional Maltese fish aggregating devices (FAD) and surface longline fisheries were studied. The a and b parameters of the length-weight relationship for fish 11-142 cm fork length (FL) (n = 4042) were determined as a = 0.018 and 0.022 with b = 2.85 and 2.79, for males and females respectively. The counting of annual increments from dorsal spines of >65 cm FL dolphinfish at X25 magnification (n = 47) permitting an age reading resolution in years  , and the counting of daily increments from sagittal otoliths of <65 cm FL dolphinfish at X400 magnification (n = 583) permitting an age reading resolution in days, were estimated; the von Bertalanffy growth model applied to these fish gave the following parameters: L∞ = 107.8 cm FL and 120.2 cm FL, and K = 1.9 yr-1 and 1.56 yr-1, for males and females respectively. The maximum age observed was 2 years. Size at 50% maturity for fish 10-131 cm FL (n = 1376) was 58.9 cm FL and 62.5 cm FL for males and females, respectively. The sex ratio for the fish sampled from the FAD fishery (10.5-131 cm FL) was 1:1.54 (M:F) and for dolphinfish sampled from the surface longline fishery (91-130 cm FL) was 1:0.76 (M:F).  Back-calculated hatch dates from age-0 dolphinfish (n = 518) suggested that spawning occurs from June to September with the highest levels in June. This study is the first to use dorsal spines to determine the age of adult dolphinfish.

The influences of density on growth and reproduction in moose Alces alces

2000 ◽  
Vol 6 (1) ◽  
pp. 31-39 ◽  
Author(s):  
Steven H. Ferguson ◽  
Alan R. Bisset ◽  
François Messier
Keyword(s):  
Alces Alces ◽  
Growth And Reproduction

THE EFFECTS OF TEMPERATURE ON THE GROWTH AND REPRODUCTION IN SIMOCEPHALUS HIMALAYENSIS

2010 ◽  
Vol 36 (4) ◽  
pp. 794-805 ◽  
Author(s):  
Xin-Lu SHI ◽  
Cai-Hua QI ◽  
Gui-Jie LIU ◽  
Shuang-Yan BAO ◽  
Xiao-Na HUANG
Keyword(s):  
Effects Of Temperature ◽  
Growth And Reproduction

EFFECTS OF MICROCYSTIS ON THE GROWTH AND REPRODUCTION OF DAPHNIA MAGNA

2010 ◽  
Vol 33 (6) ◽  
pp. 1198-1201
Author(s):  
Xiao-Yu LI ◽  
Zhi-Juan ZHANG ◽  
Lei LI
Keyword(s):  
Daphnia Magna ◽  
Growth And Reproduction

Environmental Parameters in Exuma Sound and the Straits of Florida

1984 ◽  
Author(s):  
Adam Zsolnay ◽  
Dennis M. Lavoie ◽  
Denis A. Wiesenburg ◽  
David F. Reid
Keyword(s):  
Environmental Parameters ◽  
Straits Of Florida
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