In:
Journal of the Marine Biological Association of the United Kingdom, Cambridge University Press (CUP), Vol. 90, No. 4 ( 2010-06), p. 711-718
Abstract:
Amiantis umbonella is distributed throughout the coast of the northern Persian Gulf. This study of 893 clams provides data on reproduction, growth and production for the period April 2007 to March 2008 from two transects along the Bandar Abbas coast. Histological preparations showed six stages of gametogenic development: resting stage (Stage 0), early active (Stage I), late active (Stage II), ripe (Stage III), partially spawned (Stage IV) and spent (Stage V). The specimens were gonochoric and showed synchronized spawning. The reproductive cycle commenced in September and finished in March with one major spawning event in January which correlated with lower sea temperature. Von Bertalanffy growth parameters for the sample were asymptotic length (L∞) = 58–62 mm, growth constant (k) = 0.28–0.29 yr −1 and length zero (t 0 ) = –0.48 –0.47. The mean annual clam abundance, mean biomass and production were 10 individuals. m −2 , 5.7 g shell free dry weight (SFDW) m −2 and 0.495 g SFDW m −2 yr −1 , respectively.
Type of Medium:
Online Resource
ISSN:
0025-3154
,
1469-7769
DOI:
10.1017/S0025315409991056
Language:
English
Publisher:
Cambridge University Press (CUP)
Publication Date:
2010
detail.hit.zdb_id:
1491269-7
detail.hit.zdb_id:
281325-7
SSG:
12
