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  • 1
    Electronic Resource
    Electronic Resource
    Comparison of growth performance and biometric relationships in two reciprocal sturgeon hybrids reared in net cages (Sicily, Mediterranean) (2004)
    Oxford, UK : Blackwell Science Ltd
    Aquaculture research 35 (2004), S. 0 
    Details
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: This study was designed to investigate growth performance in two sturgeon hybrids reared in two quadrangular floating cages moored in an artificial pond, representing the first experience of sturgeon culture performed at Southern Mediterranean latitudes. The research was carried out from December 2000 to July 2001 and tested the growth performance, feeding parameters and biometric relationships.The sturgeons were randomly collected from the cages on a monthly basis, and total length, standard length (SL) and wet weight (WW) were recorded. The specific daily growth rate (SGRW) as somatic WW, food conversion ratio and condition factor (CF) were calculated. Biometric relationships, as linear regression, were also calculated on SL and WW data.Both hybrids grew slowly from December to April, but faster during the warm months. The growth performance of the two hybrids seems to be influenced by variability of the environmental conditions and, for both fish groups, there was a strong correlation between water temperature and SGRW at temperatures below 25 °C. The CF (constantly below 1) was similar for both hybrids. The regression analysis for WW and SL calculated for the entire period showed a positive allometry for both hybrids, indicating that the fishes grew in weight at a greater rate than required to maintain constant body proportion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2109.2004.01050.x
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Unknown
    Monthly-resolved swordfish bycatch data from Milazzo tuna trap, 1896-1901 (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-28
    Description: The data are swordfish (Xiphias gladius) bycatches from the artisanal bluefin tuna fishing trap located at Milazzo, Sicily, Italy. The data have been recovered from historical records, reports and archives associated with the traps. Data records include the locations and dates for the catches and the catch in numbers and/or weight in given months. Catch data in weight are not available on specific days for these years at this site. The time period is 1896-1901. Catch data in numbers are however available on specific days for these years at this site; see accompanying data set #928996. The data have been recovered to increase understanding of the long-term dynamics of the population and its fisheries, including effects of exploitation and climate variability and change, and to provide baseline knowledge against which future variations can be compared.
    Keywords: artisanal fishing; bycatch; Counting, visual; DATE/TIME; DEPTH, water; Fish, wet weighted; Italy; Latitude of event; Longitude of event; Mediterranean Sea; Mediterranean Sea, Western Basin; Milazzo; Oceans Past Inititative; OPI; swordfish; trap; Trap, fish; TRAPF; Xiphias gladius; Xiphias gladius, monthly landings in mass; Xiphias gladius, monthly landings in numbers
    Type: Dataset
    Format: text/tab-separated-values, 38 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Swordfish bycatch data from tuna traps located at four sites in Italy, 1896-2010 (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-28
    Description: The data set contains swordfish (Xiphias gladius) bycatches from artisanal bluefin tuna fishing traps located at four sites in Italy. Data records include the locations and dates for the catches and the catch in numbers and/or weight on given days during 1896-2010. The data have been recovered to increase understanding of the long-term dynamics of the population and its fisheries, including effects of exploitation and climate variability and change, and to provide baseline knowledge against which future variations can be compared. There are presently few other similarly long data sets for this species in this region. The data have been recovered from historical records, reports and archives associated with the traps.
    Keywords: artisanal fishing; bycatch; CapoPassero; Counting, visual; DATE/TIME; DEPTH, water; Event label; Favignana; FavignanaFormica; Fish, wet weighted; Formica; Italy; Latitude of event; Longitude of event; Mediterranean Sea; Mediterranean Sea, Western Basin; Milazzo; Oceans Past Inititative; OPI; Portoscuso; swordfish; trap; Trap, fish; TRAPF; Xiphias gladius; Xiphias gladius, mass
    Type: Dataset
    Format: text/tab-separated-values, 8494 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Unknown
    Timing and duration of fishing seasons for artisanal bluefin tuna traps at four sites in Italy, 1896-2010 (2021)
    PANGAEA
    Details
    Publication Date: 2023-02-12
    Description: This data set contains data for the start, end and duration of the fishing season for artisanal bluefin tuna fishing traps located at four sites in Italy during 1896-2010. The data have been recovered from historical records, reports and archives associated with the traps.
    Keywords: artisanal fishing; bluefin tuna trap; bycatch; Calculated; CapoPassero; Date/time end; Date/time start; DEPTH, water; Duration, number of days; Event label; FavignanaFormica; fishing season; Italy; Latitude of event; Longitude of event; Mediterranean Sea; Mediterranean Sea, Western Basin; Milazzo; Oceans Past Inititative; OPI; Portoscuso; swordfish; timing; trap; Trap, fish; TRAPF; Xiphias gladius
    Type: Dataset
    Format: text/tab-separated-values, 393 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Mapping the global distribution of the freshwater hydrozoan Craspedacusta sowerbii (2021)
    PANGAEA
    Details
    Publication Date: 2024-02-04
    Description: The invasive freshwater jellyfish Craspedacusta sowerbii (Limnomedusae, Olindiidae) is native to East Asia and since the end of the 19th century, was observed in Europe, then in North America, and across the globe. In recent decades, reports of C. sowerbii have drastically increased in Europe, North and South America, Australia, Asia, and parts of Africa. However, the worldwide distribution of C. sowerbii remains poorly documented due to the lack of information in various aquatic environments. This dataset globalises the occurrences of this species from an extensive literature review and database review. Information extracted from the literature/database were organised and synthesised according to specific criteria, such as geographic area (continent and country), GPS coordinates, habitat types (i.e., closed/open, artificial/natural, rivers, canals, ponds, lakes, etc.). To understand the altitude ranges of C. sowerbii, altitude data were extracted from the elevation layer downloaded from WorldClim (http://www.worldclim.org/; accessed in June 2021) using QGIS version 3.16.3 software.
    Keywords: Continent; Country; ELEVATION; global compilation; Habitat; Identification; LATITUDE; Location; LONGITUDE; Reference/source; Site; Species; Uniform resource locator/link to reference; Year of observation
    Type: Dataset
    Format: text/tab-separated-values, 25291 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Unknown
    Functional consequences of prey acclimation to ocean acidification for the prey and its predator (2016)
    PANGAEA
    In:  Supplement to: Dupont, Sam; Mercurio, Matteo; Giacoletti, Antonio; Rinaldi, Alessandro; Mirto, Simone; D'Aquisto, Leonardo; Sabatino, Maria Antonietta; Sarà, Gianluca (2015): Functional consequences of prey acclimation to ocean acidification for the prey and its predator. PeerJ PrePrints, https://doi.org/10.7287/peerj.preprints.1438v1
    Details
    Publication Date: 2024-03-15
    Description: Ocean acidification is the suite of chemical changes to the carbonate system of seawater as a consequence of anthropogenic carbon dioxide (CO2) emissions. Despite a growing body of evidences demonstrating the negative effects of ocean acidification on marine species, the consequences at the ecosystem level are still unclear. One factor limiting our ability to upscale from species to ecosystem is the poor mechanistic understanding of the functional consequences of the observed effects on organisms. This is particularly true in the context of species interactions. The aim of this work was to investigate the functional consequence of the exposure of a prey (the mussel Brachidontes pharaonis) to ocean acidification for both the prey and its predator (the crab Eriphia verrucosa). Mussels exposed to pH 7.5 for 〉4 weeks showed significant decreases in condition index and in mechanical properties (65% decrease in maximum breaking load) as compared with mussels acclimated to pH 8.0. This translated into negative consequences for the mussel in presence of the predator crab. The crab feeding efficiency increased through a significant 27% decrease in prey handling time when offered mussels acclimated to the lowest pH. The predator was also negatively impacted by the acclimation of the prey, probably as a consequence of a decreased food quality. When fed with prey acclimated under decreased pH for 3 months, crab assimilation efficiency significantly decreased by 30% and its growth rate was 5 times slower as compared with crab fed with mussels acclimated under high pH. Our results highlight the important to consider physiological endpoints in the context of species interactions.
    Keywords: Alkalinity, total; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Arthropoda; Assimilation efficiency; Behaviour; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Brachidontes pharaonis; Breaking load; Calcite saturation state; Calcite saturation state, standard error; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Capo_Gallo; Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Condition index; Eriphia verrucosa; EXP; Experiment; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Incubation duration; Laboratory experiment; Length; Mediterranean Sea; Mollusca; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; pH; pH, standard error; Registration number of species; Salinity; Species; Species interaction; Temperate; Temperature, water; Temperature, water, standard error; Time in seconds; Treatment; Type; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 24638 data points
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    DATA PANGAEA
  • 7
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    The sanitation service of seagrasses – Dependencies and implications for the estimation of avoided costs (2022)
    Elsevier
    Details
    Publication Date: 2024-01-08
    Description: Seagrasses are capable of sanitizing coastal seawaters polluted by fecal bacteria. In this work, the reduction of Enterococci concentration in the presence of a seagrasses’ assemblage (Pacific Ocean) was related to the decrease in the probability of gastroenteritis. A linear model fitted to data extracted from the literature showed a 20% reduction of this probability in the presence of these plants. Seagrass sanitation effect was estimated to allow avoiding ca. 24 million gastroenteritis cases/year, globally. Considering a global cost of gastroenteritis of ca. US$ 372 million/year, the global avoided cost, assuming that the sanitation service was always effective, was estimated to be ca. US$ 74 million/year (2020 US$). The seagrass sanitation effect appears genera/geographic dependent, and the targeted pathogen may change as well. Thus, the global estimates were roughly adjusted, obtaining conservative figures of ca. 8 million avoided cases/year and ca. US$ 24 million/year of avoided cost. Considering the importance of this Ecosystem Service (ES) for public health and the potential global spreading of diseases driven by climate change, further research is needed to ascertain the scope of this seagrass ES worldwide.
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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