Topic
Lampris guttatus
About: Lampris guttatus is a research topic. Over the lifetime, 28 publications have been published within this topic receiving 562 citations.
Papers
TL;DR: Results indicate that total mercury levels of predatory pelagic fishes and their prey increase with median depth of occurrence in the water column and mimic concentrations of dissolved organic mercury in seawater, suggesting that the mesopelagic habitat is a major entry point for mercury into marine food webs.
Abstract: Mercury distribution in the oceans is controlled by complex biogeochemical cycles, resulting in retention of trace amounts of this metal in plants and animals. Inter- and intra-specific variations in mercury levels of predatory pelagic fish have been previously linked to size, age, trophic position, physical and chemical environmental parameters, and location of capture; however, considerable variation remains unexplained. In this paper, we focus on differences in ecology, depth of occurrence, and total mercury levels in 9 species of commercially important pelagic fish (Thunnus obesus, T. albacares, Katsuwonus pelamis, Xiphias gladius, Lampris guttatus, Coryphaena hippurus, Taractichthys steindachneri, Tetrapturus audax, and Lepidocybium flavobrunneum) and in numerous representatives (fishes, squids, and crustaceans) of their lower trophic level prey sampled from the central North Pacific Ocean. Results indicate that total mercury levels of predatory pelagic fishes and their prey increase with median depth of occurrence in the water column and mimic concentrations of dissolved organic mercury in seawater. Stomach content analysis results from this study and others indicate a greater occurrence of higher-mercury containing deeper-water prey organisms in the diets of the deeper-ranging predators, X. gladius, T. obesus, and L. guttatus. While present in trace amounts, dissolved organic mercury increases with depth in the water column suggesting that the mesopelagic habitat is a major entry point for mercury into marine food webs. These data suggest that a major determinant of mercury levels in oceanic predators is their depth of forage.
212 citations
TL;DR: The authors presented morphological and meristic data supporting the presence of five species previously subsumed within Lampris guttatus (Brunnich 1788) and L. immaculatus (Gilchrist 1905) commonly known as Opah and Southern Opah, respectively.
Abstract: The genus Lampris (Lampridae) currently comprises two species, Lampris guttatus (Brunnich 1788) and L. immaculatus (Gilchrist 1905) commonly known as Opah and Southern Opah, respectively. Hyde et al. (2014) presented DNA sequence data which revealed the presence of five distinct, monophyletic lineages within L. guttatus. In this paper, we present morphological and meristic data supporting the presence of five species previously subsumed within L. guttatus (Brunnich 1788). We restrict Lampris guttatus (Brunnich 1788), resurrect L. lauta (Lowe 1838), and describe three new species of Lampris. A key to the species of Lampris is provided.
134 citations
TL;DR: A whole-body form of endothermy in a fish, the opah (Lampris guttatus), that produces heat through the constant “flapping” of wing-like pectoral fins and minimizes heat loss through a series of counter-current heat exchangers within its gills.
Abstract: Mammals and birds warm their entire bodies above the ambient temperature. Generally, this ability is lacking in other vertebrates, although some highly active fish can temporarily warm their swim muscles. Wegner et al. show that the opah, a large deepwater fish, can generate heat with its swim muscles and use this heat to warm both its heart and brain. This ability increases its metabolic function in cold deep waters, which will help the fish compete with other, colder-blooded species.
Science , this issue p. [786][1]
[1]: /lookup/doi/10.1126/science.aaa8902
130 citations
TL;DR: Based on bite scar diameter, larger Cookiecutter Sharks may preferentially attack Swordfish rather than the other species of pelagic fish, adding further support to the hypothesis that CookieCutter Sharks perform diel vertical migrations.
Abstract: TheCookiecutter Shark(Isistius brasiliensis) is an ecto-parasitic predator of numerous large pelagic fish and mammals. However, little is known of its foraging ecology due to its elusive foraging tactics in the pelagic environment. We used bite scar patterns on pelagic fishes landed at the Honolulu Fish Auction to assess some of the Cookiecutter Shark foraging habits. Swordfish (Xiphias gladius) had the greatest percen tage of bites (87.9±25.0% of individuals had healed scars) followed by Opah (Lampris guttatus ,3 3.0± 8.3% of individuals). Most fish with scars only had one Cookiecutter Shark bite per individual with the exception of Swordfish, which often had >5 bites per individual. Furthermore, Swordfish had a higher proportion of healed bite scars meaning they had been attacked while free-swimming. Seasonal changes in the probability of hooked fish being bitten by sharks were apparent for Swordfish, Bigeye Tuna and Opah. Based on bite scar diameter, larger Cookiecutter Sharks may preferentially attack Swordfish rather than the other species of pelagic fish. When taken in conjunction with diving behavior of pelagic fish, and fishing depths, the results add further support to the hypothesis that Cookiecutter Sharks perform diel vertical migrations.
60 citations
TL;DR: The present study suggests that DNA species identification can provide a significant new tool for ecological studies on fish eggs.
Abstract: Fish eggs collected in the West Mariana region of the western North Pacific (7°–18°N, 137°–144°E) were identified using mitochondrial 16S ribosomal RNA (16S rRNA) gene sequences, and their morphology and distribution were analyzed. Of the 5,321 eggs collected, 2,698 live eggs were morphologically divided into 108 types based on the character of shape, diameter, chorion, oil globule, pigmentation, yolk segmentation and perivitelline space. Excluding 20 types of formalin preserved eggs, partial sequences of 16S rRNA gene (1,019–1,190 base pairs) obtained for all remaining 88 types of ethanol preserved eggs were compared with sequences deposited in the DDBJ/EMBL/GenBank using Basic Local Alignment Search Tool. This resulted in 16 species being genetically identified and their morphological characters were observed including the first description of the eggs of three species, Ventrifossa garmani, Diodon hystrix, and Scopelogadus mizolepis. Distribution analysis showed that 52–100% eggs of eight species, Katsuwonus pelamis, D. hystrix, S. mizolepis, Thunnus spp., Xiphias gladius, Cepalopholis spp., Naso spp. and V. garmani were collected around seamounts of the West Mariana region, whereas the other eight species, Lampris guttatus, Oxyporhamphus micropterus, Ranzania laevis, Istiophorus platypterus, Exocoetidae spp., Lactoria diaphana, Tetrapturus angustirostris and Regalecus glesne showed no tendency to be concentrated around the seamounts and were widely distributed through the study area. These distributional patterns of eggs appeared to correspond well with the life histories of each species. The present study suggests that DNA species identification can provide a significant new tool for ecological studies on fish eggs.
53 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2020 | 2 |
| 2019 | 2 |
| 2018 | 2 |
| 2015 | 2 |
| 2014 | 2 |
| 2011 | 1 |