Vertical migration and diel feeding periodicity of the skinnycheek lanternfish (Benthosema pterotum) in the Red Sea

Dypvik, Eivind; Kaartvedt, Stein

doi:10.1016/j.dsr.2012.10.012

Cited by 35 publications

(38 citation statements)

References 54 publications

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“…This is a markedly shallower depth than previous reports for adult B. pterotum and the other pseudoceanic myctophids Dypvik & Kaartvedt, 2013). This is a markedly shallower depth than previous reports for adult B. pterotum and the other pseudoceanic myctophids Dypvik & Kaartvedt, 2013).…”

Section: Spatial Distribution and Maintenance Mechanism Of The Larvaecontrasting

confidence: 66%

Distribution, hatch-date, growth, and mortality of larval Benthosema pterotum (Pisces: Myctophidae) in the shelf region of the East China Sea

2014

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We examined the distribution, hatch-date, growth, and mortality of larval Benthosema pterotum, a dominant pseudoceanic myctophid in the shelf region of the East China Sea, during early autumn when the main spawning has been predicted. This species is a key species in the food web of this area. Larvae were abundant in the area south of Cheju Island (60-80 m depth), corresponding with the adult habitat. Occurrence of the larvae was restricted to the onshore side of the shelf-break salinity front, indicating that this front acted as a barrier restricting the offshore dispersion of the larvae. In the area where the larvae occurred, a cyclonic eddy is formed, which is considered to limit the dispersal of the larvae, enabling them to recruit into the area of adult habitat. Modes of hatch-date appeared from late August to early September and from mid to late September, suggesting that large-scale spawning events occurred at least twice during the spawning season. Since the modes coincided with the new moon period, B. pterotum is suggested to spawn periodically once a month around the new moon, resulting in efficient mating and fertilization. Mean absolute growth rate (0.26 mm d 21 ) and weight-specific growth rate (18.8% of dry body weight d 21 ) were higher than previously reported values of other subtropical-tropical myctophids, which would be related to the high food availability in the study area. Daily instantaneous mortality coefficient during the first two weeks after hatching was estimated to be 0.28 d 21 (equivalent to 24.7% mortality d 21 ).

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Section: Spatial Distribution and Maintenance Mechanism Of The Larvaecontrasting

confidence: 66%

Distribution, hatch-date, growth, and mortality of larval Benthosema pterotum (Pisces: Myctophidae) in the shelf region of the East China Sea

2014

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“…Adults of this species occur on the ECS shelf (approximately 40-90 m depth) year-round and reproduce there, that is a markedly shallower depth than previous reports for adult B. pterotum in the Indian Ocean and the other pseudoceanic myctophid species (Sassa et al, , 2014a(Sassa et al, , 2015Dypvik and Kaartvedt, 2013). Although a peak abundance of B. pterotum larvae is observed during summer in the ECS (Yeh, 1992;Chiu and Hsyu, 1994;Chen et al, 2014;Sassa et al, 2015), they sometimes occurred abundantly off northeastern Taiwan during winter to early spring, being a dominant species (Huang and Chiu, 1998;Hsieh et al, 2005;H.Y.…”

Section: Spatial Relations Between Mesopelagic and Commercial Pelagicmentioning

confidence: 64%

Late winter larval fish assemblage in the southern East China Sea, with emphasis on spatial relations between mesopelagic and commercial pelagic fish larvae

Sassa

Konishi

2015

Continental Shelf Research

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“…Although the studies of plastic ingestion in corals are yet very scarce, researchers recently demonstrated that scleractinian corals do capture and ingest microplastics, from 0.1 to 2 mm in length (Hall et al, 2015), and from 0.125 to 1 mm (Allen et al, 2017); matching the size range of plastic debris reported in our assessment. Mesopelagic fish assemblages have also been reported to be relevant feeders of plastic fragments in the size interval from 0.5 to 5 mm (Boerger et al, 2010;Davison and Asch, 2011;Foekema et al, 2013), and are especially abundant in the Red Sea, with nocturnal feeding migration to the surface particularly active in comparison with other world regions (Dypvik and Kaartvedt, 2013). Other important consumers may include seabirds and turtles, which are abundant in the Red Sea.…”

Section: Discussionmentioning

confidence: 99%

Low Abundance of Plastic Fragments in the Surface Waters of the Red Sea

et al. 2017

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The floating plastic debris along the Arabian coast of the Red Sea was sampled by using surface-trawling plankton nets. A total of 120 sampling sites were spread out over the near-shore waters along 1,500 km of coastline during seven cruises performed during 2016 and 2017. Plastic debris, dominated by millimeter-sized pieces, was constituted mostly of fragments of rigid objects (73%) followed by pieces of films (17%), fishing lines (6%), and foam (4%). These fragments were mainly made up by polyethylene (69%) and polypropylene (21%). Fibers, likely released from synthetic textiles, were ubiquitous and abundant, although were analyzed independently due to the risk of including non-plastic fibers and airborne contamination of samples in spite of the precautions taken. The plastic concentrations (excluding possible plastic fibers) contrasts with those found in other semi-closed seas, such as the neighboring Mediterranean. They were relatively low all over the Red Sea (<50,000 items km −2 ; mean ± SD = 3,546 ± 8,154 plastic item km −2 , 1.1 ± 3.0 g km −2 ) showing no clear spatial relationship with the distribution of coastal population. Results suggests a low plastic waste input from land as the most plausible explanation for this relative shortage of plastic in the surface waters of the Red Sea; however, the additional intervention of particular processes of surface plastic removal by fish or the filtering activity of the extensive coral reefs along the coastline cannot be discarded. In addition, our study highlights the relevance of determining specific regional conversion rates of mismanaged plastic waste to marine debris, accounting for the role of near-shore activities (e.g., beach tourism, recreational navigation), in order to estimate plastic waste inputs into the ocean.

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Vertical migration and diel feeding periodicity of the skinnycheek lanternfish (Benthosema pterotum) in the Red Sea

Cited by 35 publications

References 54 publications

Distribution, hatch-date, growth, and mortality of larval Benthosema pterotum (Pisces: Myctophidae) in the shelf region of the East China Sea

Distribution, hatch-date, growth, and mortality of larval Benthosema pterotum (Pisces: Myctophidae) in the shelf region of the East China Sea

Late winter larval fish assemblage in the southern East China Sea, with emphasis on spatial relations between mesopelagic and commercial pelagic fish larvae

Low Abundance of Plastic Fragments in the Surface Waters of the Red Sea

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