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  • 2020-2024  (166,913)
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  • 11
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    Effects of ocean acidification on larval swimming behaviour of the cold-water coral Desmophyllum pertusum (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-15
    Description: The objective of this study is to determine the effects of ocean acidification (OA) on the survival, development and swimming behaviour of embryos of the deep-sea coral Desmophyllum pertusum (syn. Lophelia pertusa). Upon spawning, fertilized embryos were collected and exposed to two pCO2 treatments corresponding to present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under scenario IPCC RCP8.5 for the end of the century (1000 ppm). We monitored survival daily and we measured swimming velocity on day 9 after spawning. Temperature and pH were measured every 24h, salinity was measured every other day, and water samples were collected during the first and last day of the experiment to determine total alkalinity (TA). This dataset includes data on the effects of ocean acidification on swimming velocity of larvae of the deep-sea coral Desmophyllum pertusum. Embryos were exposed to two acidification (pCO2) treatments: present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under RCP8.5 for the end of the century (1000 ppm). After rearing the embryos in the respective treatments for nine days, we recorded the swimming behaviour of larvae with a video camera. Videos were analyzed with manual particle tracking, and here we report the swimming velocity and total traveled distance of larvae in each experimental treatment.
    Keywords: ASSEMBLE_Plus; Association of European Marine Biological Laboratories Expanded; Climate change; cold-water coral; DATE/TIME; Deep sea; early life history; early life stages; iAtlantic; Image analysis, NIH ImageJ, MTrackJ plugin; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; Larvae; larval behaviour; physiology; Remote operated vehicle; ROV; Sample ID; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); Speed, swimming; Swim distance; Time in hours; Tisler_Sampling_Lophelia_pertusa_4; Tisler_Sampling_Lophelia_pertusa_6; Tisler Reef, Skagerrak; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 480 data points
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  • 12
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    Effects of ocean acidification on larval survival rates of the cold-water coral Desmophyllum pertusum (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-15
    Description: The objective of this study is to determine the effects of ocean acidification (OA) on the survival, development and swimming behaviour of embryos of the deep-sea coral Desmophyllum pertusum (syn. Lophelia pertusa). Upon spawning, fertilized embryos were collected and exposed to two pCO2 treatments corresponding to present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under scenario IPCC RCP8.5 for the end of the century (1000 ppm). We monitored survival daily and we measured swimming velocity on day 9 after spawning. Temperature and pH were measured every 24h, salinity was measured every other day, and water samples were collected during the first and last day of the experiment to determine total alkalinity (TA). This dataset includes data on the effects of OA on embryo and larval survival of the deep-sea coral Desmophyllum pertusum. Embryos (age: first cleavage and 2 cell stage) were exposed to two acidification (pCO2) treatments: present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under RCP8.5 for the end of the century (1000 ppm) and reared for a total of nine days. We counted embryos and larvae daily to determine larval survival under the two treatments.
    Keywords: ASSEMBLE_Plus; Association of European Marine Biological Laboratories Expanded; Climate change; cold-water coral; DATE/TIME; Deep sea; early life history; early life stages; iAtlantic; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; Laboratory experiment; Larvae; larval behaviour; pH; pH meter, Mettler Toledo, Seven2Go pH /Ion meter S8; physiology; Remote operated vehicle; Replicate; ROV; Salinity; Sample ID; Species; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperature, water; Time in hours; Tisler_Sampling_Lophelia_pertusa_4; Tisler_Sampling_Lophelia_pertusa_6; Tisler Reef, Skagerrak; Treatment; Visual counts
    Type: Dataset
    Format: text/tab-separated-values, 1116 data points
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  • 13
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    Health status of dab (Limanda limanda) exposed to dumped munition in German coastal waters (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-15
    Description: Conventional munition dumped into the North Sea and the Baltic Sea close to the German coastline is corroding. A major concern is that biota, including fish, are negatively affected by toxic explosives leaking into marine environments. With the present study, we investigated fish living in close proximity to munition dumping sites for contamination and for signs of health impairments. The flat fish species common dab (Limanda limanda) was used as a model, since it lives in the vicinity of dumping sites and exhibits minor migratory activity. Various health indicators (body condition factors, externally visible fish diseases, parasites or liver anomalies) were investigated.
    Keywords: Baltic Sea; Borkum; Calculated; CLU355; CLU355_1; CLU355_2; CLU355_3; CLU355_4; CLU364; CLU364_1; CLU364_2; CLU364_3; CLU364_4; CLU367; CLU367_1; CLU367_2; CLU376; CLU376_1; CLU376_3; CLU376_4; CLU376_5; CLU376_6; Clupea; CONMAR; Cruise/expedition; DAM sustainMare - CONMAR: CONcepts for conventional MArine Munition Remediation in the German North and Baltic Sea; DATE/TIME; Demersal fish trawl; DEPTH, water; Determined by visual inspection of otholiths; diseases; Event label; fish health; Fish measuring board; FTRW-D; Gillnet; GN; Haffkrug North; Heligoland West-North-West; Kolberger Heide; Kolberger Heide East; Kolberger Heide West; Langeoog; LATITUDE; Limanda limanda, age; Limanda limanda, condition factor; Limanda limanda, dark melonoma, presence/absence; Limanda limanda, epidermal papilloma, presence/absence; Limanda limanda, fin rot, presence/absence; Limanda limanda, lipoma, presence/absence; Limanda limanda, liver anomalies, presence/absence; Limanda limanda, lymphocystis, presence/absence; Limanda limanda, mass; Limanda limanda, presence/absence of Acanthochondria cornuta; Limanda limanda, presence/absence of Cryptocotyle lingua; Limanda limanda, presence/absence of Lepeophtheirus pectoralis; Limanda limanda, presence/absence of Myxospora; Limanda limanda, presence/absence of Stephanostomum baccatum; Limanda limanda, sex; Limanda limanda, skeletal deformation, presence/absence; Limanda limanda, skin ulceration, presence/absence; Limanda limanda, total length; Limanda limanda, white hyperpigmentation, presence/absence; Limanda limanda, x-cell gill disease, presence/absence; Location; Location ID; LONGITUDE; Norderney North; North Sea; parasites; Pelzerhaken East; Research Mission of the German Marine Research Alliance (DAM): Protection and sustainable use of marine areas; Scale; Scharhörn reef; Schleimünde North-East; SOL816; SOL816_1; SOL816_2; SOL816_3; SOL816_4; SOL816_5; SOL816_6; SOL816_7; SOL816_8; SOL816_9; Solea (2004); Spiekeroog fairway North; Spiekeroog North; sustainMare; Visual observation; Wangerooge North; Wangerooge North, Minsener Oog; Weser mouth
    Type: Dataset
    Format: text/tab-separated-values, 9323 data points
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  • 14
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    Seawater carbonate chemistry and stable carbon isotope composition of DIC over a 27 + h period from Tetiaroa Atoll, French Polynesia (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-15
    Description: In this pilot study, we use co-located semi-hourly measurements of total dissolved inorganic carbon (DIC), total alkalinity, and the stable carbon isotope composition of DIC (δ13CDIC) over a 27 + h period from Tetiaroa Atoll, French Polynesia, to investigate the potential for reef carbonate chemistry to record information related to benthic photosynthetic community composition and response to natural gradients in ambient acidity and dissolved carbon dioxide. This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were downloaded from Mendeley Data (see Source) by the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2024-05-17.
    Keywords: Alkalinity, total; Aragonite saturation state; Benthos; Bicarbonate ion; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Entire community; Field observation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Isotopic fractionation factor; Isotopic fractionation factor, standard deviation; Local Time; Motu_Onetahi; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Rocky-shore community; Salinity; South Pacific; Temperature, water; Tropical; Type of study; δ13C, dissolved inorganic carbon
    Type: Dataset
    Format: text/tab-separated-values, 246 data points
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  • 15
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    Two new Kongsbergia species from the Western Himalaya with a key to the species of the genus from India (Acari: Hydrachnidia, Aturidae) (2024)
    Institute for Biodiversity and Ecology
    In:  Ecologica Montenegrina vol. 74, pp. 1-8
    Details
    Publication Date: 2024-06-14
    Description: In this paper, two species of the water mite genus Kongsbergia Thor, 1899 (Aturidae), i.e., K. uttarakhandensis Pešić & Smit n. sp. and K. tuzovskiji Pešić & Smit n. sp. are described from streams in Uttarakhand State of India. The latter species was named after late Dr Petr Tuzovskij for his outstanding contribution to the research of water mites.
    Keywords: Acari ; water mites ; taxonomy ; Himalayas ; new species ; streams
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 16
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    Why Bolle's Laurel Pigeon Columba bollii is not named Wagler's Laurel Pigeon Columba lamprauchen (2024)
    British Ornithologists' Club
    In:  Bulletin of the British Ornithologists’ Club vol. 144 no. 2
    Details
    Publication Date: 2024-06-14
    Description: The Canary Islands endemic Bolle's Laurel Pigeon Columba bollii was described as a species in 1872 by Godman. A specimen of the same species collected more than 75 years earlier, during the 1796–98 expedition commanded by Baudin, was instead believed to be an example of the Jamaican endemic, Ring-tailed Pigeon Patagioenas caribaea (Jacquin, 1784). However, in 1827 its identity had been questioned by Wagler, who believed the specimen represented a separate Caribbean species that he named Columba Lamprauchen. Although Wagler's name is senior to Godman's, we demonstrate that, following the International code of zoological nomenclature, Columba bollii should be used as the correct name for this Canarian species.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 17
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    Taking it with a grain of salt: tolerance to increasing salinization in Culex pipiens (Diptera: Culicidae) across a low-lying delta (2024)
    In:  Parasites & Vectors vol. 17 no. 1
    Details
    Publication Date: 2024-06-14
    Description: Background Salinity, exacerbated by rising sea levels, is a critical environmental cue affecting freshwater ecosystems. Predicting ecosystem structure in response to such changes and their implications for the geographical distribution of arthropod disease vectors requires further insights into the plasticity and adaptability of lower trophic level species in freshwater systems. Our study investigated whether populations of the mosquito Culex pipiens, typically considered sensitive to salt, have adapted due to gradual exposure. Methods Mesocosm experiments were conducted to evaluate responses in life history traits to increasing levels of salinity in three populations along a gradient perpendicular to the North Sea coast. Salt concentrations up to the brackish–marine transition zone (8 g/l chloride) were used, upon which no survival was expected. To determine how this process affects oviposition, a colonization experiment was performed by exposing the coastal population to the same concentrations. Results While concentrations up to the currently described median lethal dose (LD50) (4 g/l) were surprisingly favored during egg laying, even the treatment with the highest salt concentration was incidentally colonized. Differences in development rates among populations were observed, but the influence of salinity was evident only at 4 g/l and higher, resulting in only a 1-day delay. Mortality rates were lower than expected, reaching only 20% for coastal and inland populations and 41% for the intermediate population at the highest salinity. Sex ratios remained unaffected across the tested range. Conclusions The high tolerance to salinity for all key life history parameters across populations suggests that Cx. pipiens is unlikely to shift its distribution in the foreseeable future, with potential implications for the disease risk of associated pathogens.
    Keywords: Adaptation ; Culex pipiens ; Environmental change ; Mosquito ; Population dynamics ; Oviposition ; experiments ; Salinization
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 18
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    Stony Corals and Their Associated Fauna Residing in Marine Lakes under Extreme Environmental Conditions (2024)
    In:  Diversity vol. 16 no. 5
    Details
    Publication Date: 2024-06-14
    Description: Tropical marine lakes are small land-locked marine waterbodies occurring in karstic coastal areas. During biodiversity surveys in 12 marine lakes in Raja Ampat, Southwest Papua province, Indonesia, we recorded at least 37 species belonging to 29 genera of hard corals. Their observed associated symbiont fauna consisted of bivalve molluscs and polychaete worms. Marine lake temperature ranged from 30.0 to 32.5 °C, acidity from pH 7.6 to 8.1, and salinity from 26.4 to 33.2 ppt. This study provides the first inventory of the marginal coral communities in the extreme habitat of marine lakes, under chronic extreme environmental conditions of higher temperatures, land-based nutrient loads, and sedimentation.
    Keywords: extreme habitat ; marginal coral communities ; environmental limits ; anchialine ; Raja Ampat ; Bird’s Head Peninsula ; Indonesia
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 19
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    Tracing Geographic and Molecular Footprints of Copepod Crustaceans Causing Multifocal Purple Spots Syndrome in the Caribbean Sea Fan Gorgonia ventalina (2024)
    In:  Diversity vol. 16 no. 5
    Details
    Publication Date: 2024-06-14
    Description: The recent rise in ocean temperatures, accompanied by other environmental changes, has notably increased the occurrence and spread of diseases in Octocorallia, many species of which are integral to shallow tropical and subtropical coral reef ecosystems. This study focuses on the understanding of these diseases, which has been largely limited to symptomatic descriptions, with clear etiological factors identified in only a fraction of cases. A key example is the multifocal purple spots syndrome (MFPS) affecting the common Caribbean octocoral sea fan Gorgonia ventalina, linked to the gall-forming copepods of the genus Sphaerippe, a member of the widespread family, Lamippidae. The specialized nature of these copepods as endoparasites in octocorals suggests the potential for the discovery of similar diseases across this host spectrum. Our investigation employed four molecular markers to study disease hotspots in Saint Eustatius, Curaçao, northwest and southwest Cuba, and Bonaire. This led to the discovery of a group of copepod species in these varied Caribbean locations. Importantly, these species are morphologically indistinguishable through traditional methods, challenging established taxonomic approaches. The observed diversity of symbionts, despite the host species’ genetic uniformity, is likely due to variations in larval dispersal mechanisms. Our phylogenetic analyses confirmed that the Lamippidae copepods belong to the order, Poecilostomatoida (Copepoda), and revealed their sister group relationship with the Anchimolgidae, Rhynchomolgidae, and Xarifiidae clades, known for their symbiotic relationships with scleractinian corals. These results add to our understanding of the evolutionary and ecological interactions of copepods and their hosts, and the diseases that they cause, and are important data in a changing climate.
    Keywords: parasites ; gorgonian octocorals ; integrative taxonomic approach ; phylogenetic analysis ; Caribbean region ; copepod crustaceans ; Lamippidae
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 20
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    Four flowering plant species described from Katanga (Democratic Republic of the Congo) are based on specimens collected in Guangxi, China (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 82-92
    Details
    Publication Date: 2024-06-14
    Description: The original set of botanical collections of the agronomist H.A. Homblé is conserved in the herbarium BR. Homblé was one of the first collectors (1911–1913) for the flora of Katanga, Democratic Republic of the Congo. Many Homblé specimens were described as taxonomic novelties; 107 tropical African plant species are named after him. Before his colonial career in Katanga, Homblé stayed about two years (1909–1911) in Guangxi, China. His incompletely labelled Chinese collections were erroneously considered as collected in Katanga. This supposed African origin has led to confusion with regard to the identification, and even resulted in the description of four species believed to be new for science. This paper presents and discusses Homblé’s collection made in Guangxi, and the assumed novelties in it. Drosera insolita is a synonym of the Asian Drosera lunata, widespread from India to Australia. Three other species are new synonyms. Caesalpinia homblei is a synonym of the pantropical Caesalpinia bonduc. Digitaria polybotryoides is a synonym of Digitaria abludens, a widespread species in tropical Asia. Grewia katangensis is the only species that proved to be synonymous with an endemic species, Grewia cuspidatoserrata, only known from S Yunnan, and here reported as a new record for Guangxi. Lysimachia candida and Impatiens chinensis should be deleted from the list of the Congo Flora. The importance of careful specimen labelling and label interpretation is discussed.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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