spawn

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The spawners in Marsh Creek, gently waving their tails, overcame enormous odds to complete their journey, one that began long before they hatched in the Marsh Creek gravel.
But it also means that even more fish are staging or have dropped back into the pools and runs immediately below the spawners.
In addition, our search included species not necessarily classified as indeterminate spawners because relatively few studies distinguish fecundity pattern (Murua et al.
5] can be used as a criterion to classify squid as "small" and "large" spawners in different regions and periods of the year (Brunetti et al.
Age distribution of male first-time spawners differed significantly among all three morphotypes (p = 0.
Domestication of the Kuruma prawn by CSIRO Marine Research and industry partners (see story page 13), ensures a supply of disease-free spawners, maintained under biosecure conditions, which will be available to restock ponds should a disease outbreak occur.
4) Delay in the opening of the shrimp fishing season from 1 July to 1 October so as to a) increase the value of the landings by increasing the average size of the shrimp landed, b) increase the size of the spawning biomass so that autumn spawners (spawning in September) were protected as well as spring spawners (FAO, 1982), and c) increase the catch rate of the spring spawners at the end of the fishing season, recommended to last until the end of January so as to reduce total effort and to protect the spring spawners (spring spawning occurring in about February to April; FAO, 1982).
However, modeling habitat preferences was complicated by the fact that two types of spawners occur: those that exhibit peak spawning during April in the SCB at about 15.
Model projections of the fishery implications of the Allee effect in broadcast spawners.
In the shallows, a mix of maidencane, reeds, canary grass, and other types of shallow vegetation points to concentrations of spawners.
The criteria include the number of spawners that returned three years previously, the "parent year-class.
WWF said it is significant because eggs and larvae of first time spawners, are less likely to successfully develop.