Ichthyoplankton‐based spawning dynamics of blue mackerel (<i>Scomber australasicus</i>) in south‐eastern Australia: links to the East Australian Current

Neira, Francisco J.; Keane, John

doi:10.1111/j.1365-2419.2008.00479.x

Cited by 31 publications

(31 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…No information is available on the habitat temperature of S. australasicus larvae in the North Pacific and its adjacent waters. In southeastern Australia, they occurred at 17.5 to 20.5°C (Neira & Keane 2008), which is significantly lower than the habitat temperature in our study area, i.e. the optimal temperature for this species appears to be different among populations.…”

Section: Larval Distribution In Response To Oceanographic Conditionsmentioning

confidence: 70%

“…Since species-specific temperature optima during the early life stages are key to understanding multispecies population dynamics (Takasuka et al 2008), quotient analysis (Ibaibarriaga et al 2007, Neira & Keane 2008 was performed on larval abundance data across 2 surveys combined to describe characteristics of the habitat temperature of each species. We used temperatures at 20 m depth of each station.…”

Section: Methodsmentioning

confidence: 99%

“…Analysis of mtDNA has been used to identify fish species at all life stages (e.g. Graves et al 1990, Chow et al 2003, Karaiskou et al 2005, Neira & Keane 2008, and this method can help to examine the ecology of larval-stage fishes for which species identification cannot be readily distinguished based solely on morphological characteristics.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Distribution and growth of Scomber japonicus and S. australasicus larvae in the southern East China Sea in response to oceanographic conditions

Sassa

Tsukamoto²

2010

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Chub mackerel Scomber japonicus and spotted mackerel S. australasicus are important fishery resources in the countries adjacent to the East China Sea (ECS). During February to March in 2004 and 2005, based on species identification using PCR-restriction fragment length polymorphism (PCR-RFLP) analysis of mtDNA, we examined the larval distribution, transport and growth of both species in the southern ECS, where extremely high abundances of Scomber spp. larvae are found. Distribution of S. australasicus was in a more southern area than was S. japonicus, with a higher and narrower range of habitat temperature (20 to 23°C versus 15 to 22°C), although there was some spatial overlap. In 2004, when an intrusion of the warm Kuroshio Branch Current north of Taiwan was evident, S. australasicus were transported northeastward, while they dispersed eastward along the Kuroshio front in 2005 when the intrusion was weak. Although S. japonicus showed a similar pattern of transport and dispersal to S. australasicus, it was more gradual, corresponding with the weaker flow in the northern part of the study area. The daily specific growth rates of S. japonicus and S. australasicus were 6.2 to 8.2% and 7.7 to 9.3% of body length per day, respectively, and growth was significantly higher in 2004 than in 2005 for both species, with both habitat temperature and food availability being higher in 2004. Our study provides fundamental information on the spawning and recruitment of these 2 mackerel species on which to base predictive models, which are essential for protecting these shared stocks that migrate across the boundaries within the ECS.

show abstract

Section: Larval Distribution In Response To Oceanographic Conditionsmentioning

confidence: 70%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Distribution and growth of Scomber japonicus and S. australasicus larvae in the southern East China Sea in response to oceanographic conditions

Sassa

Tsukamoto²

2010

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Egg spawning is closely linked to a combination of bathymetric and hydrographic factors, and temperature is a critical factor determining egg distribution (Neira and Keane, 2008). Temperature and wind are the environmental factors mostly associated with the spatial distribution of fish eggs in the Conception Bay (Laprise and Pepin, 1995).…”

Section: Seasonal Variation Of Larval Fish Composition and Richnessmentioning

confidence: 99%

Seasonal variations in diversity and abundance of surface ichthyoplankton in the northern South China Sea

Yin

Huang

et al. 2014

Acta Oceanol. Sin.

View full text Add to dashboard Cite

The objective of this study was to investigate the seasonal variations of ichthyoplankton diversity and abundance in the northern South China Sea based on the data collected during summer, winter and spring. In total, 95 taxa of larval fishes were identified. The greatest number of species was recorded in spring, followed by summer and winter. The number of species was distributed mainly in the coastal waters from the east of Leizhou Peninsula to the southeast of Hainan Island during the surveyed periods of summer and spring, but in the offshore waters during winter. The abundance of larval fish was lowest in winter, increased in spring, and reached the maximum in summer. High abundance of larval fish was generally restricted to coastal waters with the isobaths less than 50 m. Seasonal variations of larval fish richness, abundance and diversity index were significant (P<0.001). Carangidae was the most common and abundant taxon in summer and winter, while Sardinella sp., Thrissa mystax and Leiognathus sp. were dominant in spring. High diversity and abundance of larval fish might be attributed to increased temperature and coastal upwelling in spring and summer.

show abstract

“…Quotient analyses (Ibaibarriaga et al 2007, Neira & Keane 2008 were performed on data of Benthosema pterotum densities (ind. km -2 ) across all 5 surveys combined to describe selection of habitat in terms of bottom depth (m), temperature (°C), and salinity in the bottom layer.…”

Section: Methodsmentioning

confidence: 99%

Spatio-temporal distribution and biomass of Benthosema pterotum (Pisces: Myctophidae) in the shelf region of the East China Sea

Sassa¹,

Tsukamoto²,

Yamamoto³

et al. 2010

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

We examined the spatio-temporal distribution and biomass of Benthosema pterotum, a dominant mesopelagic-boundary myctophid in the shelf region of the East China Sea, based on data from seasonal bottom-trawl surveys. They are a major prey item for commercially important demersal fishes in this area. A total of 980 000 individuals with a wet weight of 554 kg were collected from 694 bottom-trawl net samples. Dense distributions (>10 5 ind. km -2) of B. pterotum were observed mainly in the area south of Cheju Island in all seasons, where a persistent cyclonic eddy occurs. The distribution pattern indicated the presence of an independent population completing their life cycle in the area south of Cheju Island. Daytime habitat depth of B. pterotum (mainly 40 to 90 m depth) was a markedly shallower depth than previous reports for adult fishes for the family Myctophidae. The mechanism of population maintenance of this mesopelagic species in such a shallow area was hypothesized to be related to the presence of highly turbid waters in the benthopelagic layer, which produces dim light conditions during the daytime. The biomass of B. pterotum in the area south of Cheju Island was estimated to range from 3900 to 38 400 t.KEY WORDS: Population maintenance · Mesopelagic-boundary myctophid · Benthosema pterotum · Biomass · Highly turbid waters · Continental shelf region · Mesopelagic species Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 407: [227][228][229][230][231][232][233][234][235][236][237][238][239][240][241] 2010 The biomass of myctophids was shown to influence the population dynamics of demersal fishes in the continental slope off northern Japan (Yamamura & Inada 2001).Benthosema pterotum is a typical mesopelagicboundary myctophid, widely distributed in the subtropical-tropical waters of the Indo-West Pacific, especially over or near the continental shelves (Gjøsaeter 1984, Valinassab et al. 2007, Yamada et al. 2007). They are small-sized, with a maximum body size of ca. 55 mm standard length (SL), and have a life cycle of 1 yr (Gjøsaeter 1984, Dalpadado 1988). An extremely large biomass of B. pterotum (ca. 100 million t) was estimated in the Arabian Sea, and attempts were made to evaluate its potential as a fisheries resource (Gjøsaeter 1984, Valinassab et al. 2007). This species is one of the most abundant myctophids in the East China Sea (ECS), one of the largest marginal seas of the western Pacific, including important fishing grounds for various pelagic and demersal fishes (Seikai National Fisheries Research Institute 2001, Yamada et al. 2007).In the ECS, Benthosema pterotum occur in the epipelagic layer during the larval stage (Ozawa 1986, C. Sassa unpubl. data). Transformation to the juvenile stage begins at ca. 12 to 13 mm SL, after which they start diel vertical migrations (Gjøsaeter 1984, Ozawa 1986. The juveniles and adults occur in the epipelagic layer at night, and descend to the benthopelagic layer of the continental shelf (< 200 m depth) dur...

show abstract

Ichthyoplankton‐based spawning dynamics of blue mackerel (Scomber australasicus) in south‐eastern Australia: links to the East Australian Current

Cited by 31 publications

References 35 publications

Distribution and growth of Scomber japonicus and S. australasicus larvae in the southern East China Sea in response to oceanographic conditions

Distribution and growth of Scomber japonicus and S. australasicus larvae in the southern East China Sea in response to oceanographic conditions

Seasonal variations in diversity and abundance of surface ichthyoplankton in the northern South China Sea

Spatio-temporal distribution and biomass of Benthosema pterotum (Pisces: Myctophidae) in the shelf region of the East China Sea

Contact Info

Product

Resources

About