A study of the life history of Brazilian sardine, Sardinella brasiliensis: IV. Distribution and abundance of sardine larvae

Matsuura, Yasunobu

doi:10.1590/s0373-55241977000200002

Cited by 10 publications

(2 citation statements)

References 5 publications

(2 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…number of rays and spines in the fins) and morphometric characteristics (e.g. body shape, relative position of the fin) were used to identify individuals to the lowest possible taxonomic level according to Matsuura (1977), Whitehead et al (1988), Leis and Carson-Ewart (2000) and Richards (2006). Developmental stage of the fish larvae was classified using the flexion of the tip of the notochord, into preflexion, flexion or postflexion stage (Kendall et al, 1984).…”

Section: Laboratory Proceduresmentioning

confidence: 99%

A preliminary assessment of larval fish assemblages on artificial reefs in the nearshore Southern Brazil

et al. 2021

View full text Add to dashboard Cite

Artificial reefs (ARs) have been deployed on the inner shelf of Paraná, Southeast Brazil, as protection against destructive trawling activities, and to offer habitat for local fauna for recovery of biodiversity. The purpose of this study was to develop a preliminary characterization of the ichthyoplankton community associated with both artificial and natural reefs in the Currais Archipelago, and perform a comparison of fish larvae composition between ARs and nearby unconsolidated substrate. Two sampling methods were used, light traps and a plankton net. A total of 12 families and 14 species were identified, expanding the total species list in the area by eight species and three families. Differences among assemblages on ARs and unconsolidated substrate indicate that ARs seem to be effective attractors to fish larvae. Particular attention is drawn in regard to the "attractor effect" for exotic species that do not naturally reside in the area, such as Omobranchus punctatus. The large abundance of fish eggs on ARs suggests that these artificial structures can improve local production. These results are the first step needed to better define guidelines for sustainable use and management of ARs and Currais Archipelago, a Marine National Park.

show abstract

Section: Laboratory Proceduresmentioning

confidence: 99%

A preliminary assessment of larval fish assemblages on artificial reefs in the nearshore Southern Brazil

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The species begins sexual maturation with 160-170 mm of total length at 1.5 years, and all individuals mature at 210-220 mm (Cergole and Dias-Neto, 2011). They have a bath-spawning strategy, as females spawn several batches of oocytes in a single reproductive season with average fecundity varying from 20,000 to 35,000 oocytes per female or approximately 356 to 431 g -1 spawning eggs (Vazzoler and Rossi-Wongtschowski, 1976;Matsuura, 1977;Isaac-Nahum et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Spontaneous Spawning of Brazilian Sardine in Captivity

Magnotti¹,

Sterzelecki²,

Cipriano³

et al. 2020

Bol. Inst. Pesca

View full text Add to dashboard Cite

In one year, 76 first generation (F1) Brazilian sardine Sardinella brasiliensis breeders spawned 84 times spontaneously in captivity. This is the first report for the genus Sardinella. Following the pattern found in the natural environment, the number of spawns, as well as fertilization and hatching rates were higher in spring, summer and fall than in winter. Until now, winter spawning was only presumed to occur in a natural environment. Water temperature, and not photoperiod, was positively correlated with reproductive performance.

show abstract

Seasonal change of nest survival and related aspects in an aggregation of Lasioglossum duplex (Dalla torre), a eusocial halictine bee (Hymenoptera: Halictidae)

Sakagami

1977

Population Ecology

View full text Add to dashboard Cite

SummaryNest survival in an aggregation of a eusocial halictine bee, Lasioglossum duplex, was censused through an annual cycle. Out of 2,500 nests marked at the beginning of solitary phase in the spring, only 25.5% attained eusocial phase. But 60.5% of 636 nests attaining eusocial phase successfully produced sexual offspring. This shows that solitary phase is the most vulnerable period in the annual cycle.A very low productivity in eusocial phase in the census year was clarified from examination of 99 nests in the autumn. The number of prospective foundresses surviving to the next year was estimated upon the number of brood cells in examined nests and of old females surviving these nests. Deviation between this estimate and the number of nests made in the next spring was 8.8%, confirming a drop of population size to less than one third in the next year. Some nests solitarily made in the summer by dispersed females were examined. Productivity in such nests was extremely low, hence these nests should contribute virtually nothing to the next generation.Possible factors affecting the low productivity in eusocial phase were enumerated though none of these were supported by concrete evidence. Some considerations were given on the relation between obtained results and colony life cycle in eusocial insects, particularly in halictine bees.

show abstract

A study of the life history of Brazilian sardine, Sardinella brasiliensis: IV. Distribution and abundance of sardine larvae

Cited by 10 publications

References 5 publications

A preliminary assessment of larval fish assemblages on artificial reefs in the nearshore Southern Brazil

A preliminary assessment of larval fish assemblages on artificial reefs in the nearshore Southern Brazil

Spontaneous Spawning of Brazilian Sardine in Captivity

Seasonal change of nest survival and related aspects in an aggregation of Lasioglossum duplex (Dalla torre), a eusocial halictine bee (Hymenoptera: Halictidae)

Contact Info

Product

Resources

About