Corpus ID: 59044541

THE SPAWNINGENERGETICS OF FEMALE NORTHERN ANCHOVY, ENGRAULIS MORDAX

@inproceedings{Hunter1981THESO,
  title={THE SPAWNINGENERGETICS OF FEMALE NORTHERN ANCHOVY, ENGRAULIS MORDAX},
  author={John R. S. Hunter and Roderick Leong},
  year={1981}
}
The seasonal pattern in incidence ofpostovulatory follicles in northern anchovy females indicated that they spawn about 20 times per year. The maturation rates offemales in the laboratory indicated that they were capable of maturing a spawning batch of eggs at weekly intervals. Examination of the egg size frequency distributions in sea-caught specimens indicated that vitellogenesis and egg maturation continued until the last spawning. We evaluated for northern ancllOvy the fat-water balance… Expand
Reproductive biology and fecundity of the Bay of Biscay anchovy population (Engraulis encrasicolus L.)
TLDR
Close to 100% of the anchovy population reach maturity during the reproductive season, although the smallest 1-year-old anchovy mature slightly later, at peak spawning, however, the reproductive output of one year old anchovy is similar to that of older anchovy. Expand
Analysis of the reproductive potential of two stocks of Engraulis anchoita in the Argentine Sea
TLDR
Reproductive potential between stocks was compared by analyzing the length-class structure and considering environmental variations, and a negative trend in the Bonaerense Fr mean annual value for the 1993-2008 period was observed. Expand
Egg trait variation in anchoveta Engraulis ringens: a maternal response to changing environmental conditions in contrasting spawning habitats
TLDR
These egg characteristics are determined by the adult female reproductive system, representing a maternal influence on the early life-history traits of anchoveta that might enable rapid changes in population densities in some years of improved habitat conditions. Expand
Reproductive biology of anchovy (Engraulis encrasicolus ponticus Alexandrov 1927) in the Black Sea
Investigations on the reproductive biology of the anchovy conducted during the 1987-1992 period in the northwestern Black Sea, the main spawning area of this species in this sea, are summarized. TheExpand
Maturation , reproductive seasonality , fecundity , and spawning frequency in Lutjanus vittus ( Ouoy and Gaimard ) from the North West Shelf of Australia
-The reproductive biology of Lutjanus uittus, an important component of the trawl-fishery catch from the North West Shelf of Australia, was determined from random, stratified trawls made every 2 moExpand
Reproductive patterns of blacktail comber (Serranus atricauda, Serranidae) from south-west Portugal seamounts
TLDR
It is probable that reproductive success depends more on environmental conditions and food availability during the spawning season than on body energy reserves, as no clear relation between hepatosomatic index and Fulton’s condition factor and gonadal development was found. Expand
Batch fecundity and spawning frequency of invasive Hemiculter leucisculus (Basilewsky, 1855) in Erhai Lake, China
TLDR
The total potential annual fecundity of H. leucisculus was approximately 190,944 oocytes over the whole spawning season and was much higher than the estimated standing stock of yolked oocytes at the beginning of the spawning season in April 2010. Expand
Energy allocation in relation to spawning and overwintering of a diadromous Puyen (Galaxias maculatus) population in the southernmost limit of the species distribution
TLDR
The temporal variation of the energy content of gonads, liver, fat and muscle indicates that the allocation of energy occurs by the internal transference of energy between organs and tissues. Expand
Reproductive traits and seasonal variability of Merluccius merluccius from the Tunisian coast
TLDR
Significant relationships were observed between gonadic maturation indices and the somatic and gonadic indices, suggesting a seasonal differential use of energy intake of M. merluccius, along the North Tunisian coast. Expand
Bioenergetics of egg production in Northeast Atlantic mackerel changes the perception of fecundity type and annual trends in spawning stock biomass
TLDR
Alternative estimates of relative realized fecundity are provided, which significantly change the egg survey-based SSB indices, reduces the contrast to the other data sources in the mackerel stock assessment, improves the assessment model fit and reduces the uncertainty of the stock size estimate. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 27 REFERENCES
SPAWNING INCIDENCE AND BATCH FECUNDITY IN NORTHERN ANCHOVY, ENGRAULIS MORDAX 1
TLDR
The high spawning frequency and the prolonged breeding season of the northern anchovy indicate that total fecundity may be limited by food availability and energy reserves. Expand
Fecundity and Length at First Spawning of the Hawaiian Anchovy, or Nehu (Stolephorus purpureus Fowler) in Kaneohe Bay, Oahu
TLDR
Fecundity, length at first spawning, and spawning seasonality of Stolephorus purpureus were examined by examining preserved ovarian eggs and fish captured throughout a 4-year period to further knowledge of the reproductive biology of nehu. Expand
The size of the eggs of the Argentine anchovy, Engraulis anchoita (Hubbs & Marini) in relation to the season of the year and to the area of spawning*
TLDR
There exist significative differences in egg dimensions between the northern and the southern spawning centre of the reproduction area that could indicate that the spawning stock is divided into two main genetic groups. Expand
Observations on effects of feeding level on growth and reproduction in haddock, Melanogrammus aeglefinus (L.) in captivity
TLDR
When food energy is restricted, haddock appear to achieve a balance between somatic growth and reproduction, and egg production and feeding level were correlated positively. Expand
Relation Between Egg Size, Growth, and Natural Mortality of Larval Fish
TLDR
It is suggested from what is known of the relative abundance and foraging capabilities of different sized particles, that the survival rates of larval and juvenile fish should increase as they grow and occupy a progres... Expand
The Behaviour and Physiology of Herring and Other Clupeids
TLDR
The behavior and physiology of herring and other clupeids are discussed and the anatomy and development of the skeleton and organ systems after hatching is studied in herring. Expand
4 Development: Eggs and Larvae
TLDR
This chapter discusses the most substantial advances made in the investigations of marine eggs and larvae, which provide a relatively untapped source of biological material. Expand
The estimation of daily rates of food consumption for fish
SUMMARY (1) Previous studies on rates of gastric evacuation and food consumption are briefly reviewed and criticized. The truly quantitative studies show that the evacuation rate is usuallyExpand
Rates of gastric emptying in young cod.
TLDR
Stomachs of young cod were opened at various time intervals after they had voluntarily eaten measured meals and a straight-line relation was found between rate of gastric emptying and quantity of food in the stomach, which implies that in young cod intestinal absorption is coupled to food intake by regulation of the gastric volume. Expand
Factors in Interpreting Data Obtained by Diel Sampling of Fish Stomachs
TLDR
Analysis of model behavior under different feeding regimes shows that diel pattern of food level in the stomach is less sensitive to feeding regime than many authors claim. Expand
...
1
2
3
...