Age and growth of the flathead, Platycephalus indicus, from the coastal waters of west Kyushu, Japan

Masuda, Yasuji; Ozawa, Takakazu; Onoue, O; Hamada, Takao

doi:10.1016/s0165-7836(00)00138-7

Cited by 31 publications

(33 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although we found distinct annuli in both transverse and sagittal sections, age marks (annuli) on transverse otolith sections are generally more distinct and, therefore, produce more accurate age estimates than those on the whole otolith [21][22][23][24][25]. For example, in Japanese flounder Paralichthys olivaceus, the whole-otolith method indicates the same age as the method using transverse otolith sections until age 4 years in males and 5 years in females, but often shows younger ages than the transverse-section method in older age groups, when body growth slows [25].…”

Section: Discussionmentioning

confidence: 54%

Age and growth of the lizardfish Saurida elongata from the Tsushima/Korea Strait

et al. 2009

View full text Add to dashboard Cite

We studied the age and growth of the lizardfish Saurida elongata using ground thin sections of otoliths (sagittae) from specimens collected in the Tsushima/Korea Strait between May 1999 and June 2001. A total of 695 individuals with fork lengths (FL) ranging from 189 to 478 mm were examined. The frequency of translucent zone occurrence at the outer margin of the otoliths indicated that translucent zones formed once a year between November and February. Most of the males examined were estimated to be 2-7 years old and the females, 3-9 years old. The maximum estimated age of a male specimen was 10 years and that of a female, 11 years. The estimated von Bertalanffy growth curves were FL t = 451{1 -exp[-0.172(t ? 2.50)]} and FL t = 515{1 -exp [-0.151(t ? 2.47)]} for males and females, respectively. At all ages, the FL at a specific age for females was greater than that for males, suggesting that females of this species grow faster than males.

show abstract

Section: Discussionmentioning

confidence: 54%

Age and growth of the lizardfish Saurida elongata from the Tsushima/Korea Strait

et al. 2009

View full text Add to dashboard Cite

show abstract

“…From age three, females were longer and heavier than males. Larger size in females could be indicative of a life history strategy supportive of increasing egg production (Roff, 1983;Beckman et al, 1989in Masuda et al, 2000.…”

Section: Discussionmentioning

confidence: 99%

On the age and growth of flounder Paralichthys orbignyanus (Jenyns, 1842) in Bahía Blanca Estuary, Argentina

Cazorla

2005

Hydrobiologia

View full text Add to dashboard Cite

Estimates of age and growth of flounder Paralichthys orbignyanus (Jenyns,1842) were made by analysing fish from commercial catches in Bahı´a Blanca estuary (39°LS). A total of 823 fish caught by fishing fleets operating in the estuary were collected between February 1997 and January 1998. Age was determined via scale reading and growth estimation parameters using von Bertalanffy's equation. Annulus formation occurred in August. The age for the total population, which ranged from 7.7 to 87.5 cm TL was 0-7. Age ranged from 0 to 6 years (21.5-71.9 cm TL) in males and from 0 to 7 years (24.9-87.5 cm TL) in females. Length-weight relationships were W(g) ¼ 0.0093 L(cm) exp. 3.03 for the total population, W(g) ¼ 0.0147 L(cm) exp. 2.91 for females, and W(g) ¼ 0.0168 L(cm) exp. 2.87 for males, respectively. As from age three, females were longer and heavier than males. The growth parameters estimated for the total population, for females and for males were L¥ ¼ 83.29, 79.66, and 46.11 cm, respectively; k values were 0.18, 0.23, and 0.92, respectively, and t 0 values were )1.87; )1.54, and )0.62, respectively. Similarly to other flounders, P. orbignyanus is a typical inhabitant of estuaries and coastal regions. Adults stay in the study area mainly during spring and summer, they go outside or offshore during the spawning period and then they return to the estuary for feeding and recovering.

show abstract

“…Otolith edges were also observed and judged to be translucent or opaque. Accurate ages were assigned to each individual according to the method of age assignment proposed by Masuda et al (2000), and the birth month was defined as January, which corresponds to the beginning of the spawning season for N. come and N. japonica around Okinawa Island (Uehara and Tachihara, unpublished data).…”

Section: Methodsmentioning

confidence: 99%

Biological traits of naturally induced hybrid individuals of two gizzard shads, Nematalosa come and N. japonica, in coastal waters around Okinawa Island, Ryukyu Archipelago, southwestern Japan

et al. 2011

View full text Add to dashboard Cite

Age and growth of the flathead, Platycephalus indicus, from the coastal waters of west Kyushu, Japan

Cited by 31 publications

References 9 publications

Age and growth of the lizardfish Saurida elongata from the Tsushima/Korea Strait

Age and growth of the lizardfish Saurida elongata from the Tsushima/Korea Strait

On the age and growth of flounder Paralichthys orbignyanus (Jenyns, 1842) in Bahía Blanca Estuary, Argentina

Biological traits of naturally induced hybrid individuals of two gizzard shads, Nematalosa come and N. japonica, in coastal waters around Okinawa Island, Ryukyu Archipelago, southwestern Japan

Contact Info

Product

Resources

About