Nedo Vrgoč's research while affiliated with Institute of Oceanography and Fisheries and other places
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Publications (82)
Elasmobranchs, which include sharks and batoids, play critical roles in maintaining the integrity and stability of marine food webs. However, these cartilaginous fish are among the most threatened vertebrate lineages due to their widespread depletion. Consequently, understanding dynamics and predicting changes of elasmobranch communities are major...
To understand the response of marine species to a changing environment, it is crucial to have deep insight into their main biological traits. This study used a multi-species approach to comparatively analyse the reproductive and growth strategies of three commercially important scallop species. Target taxa were larger sized Mediterranean scallop Pe...
Abundance and distribution of commercial marine resources are influenced by environmental variables, which together with fishery patterns may also influence their catchability. However, Catch Per Unit Effort (CPUE) can be standardized in order to remove most of the variability not directly attributable to fish abundance. In the present study, Gener...
Lead Partner COISPA Tecnologia & Ricerca in Consortium with University of Alicante (UA), Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata “G. Bacci” di Livorno (CIBM), NISEA Società cooperativa, Hellenic Centre for Marine Research (HCMR), Institute of Oceanography and Fisheries of Split (IOF), Institute of Oceanol...
A Before–Intermediate–After Multiple Sites (BIAMS) analysis, namely a modified version
of the Before–After–Control–Impact (BACI) approach, was used to evaluate the possible effects of fishery management measures implemented in the Pomo/Jabuka Pits area, a historically highly exploited ground for Italian and Croatian fisheries, whose impact may have...
Within this paper, reproduction traits of the Adriatic population European hake, Merluccius merluccius (Linnaeus, 1758), were investigated. Specimens of the target species were monthly collected (N=1173) during 2019 along the eastern Adriatic Sea with commercial bottom trawlers. Overall, European hake total body length varied between 15.5 and 49.5...
Within this paper, reproduction traits of the Adriatic population European hake, Merluccius merluccius (Linnaeus, 1758), were investigated. Specimens of the target species were monthly collected (N=1173) during 2019 along the eastern Adriatic Sea with commercial bottom trawlers. Overall, European hake total body length varied between 15.5 and 49.5...
Summary:
https://marine.copernicus.eu/news/ocean-state-report-5-summary-now-available
Full report:
https://www.tandfonline.com/doi/full/10.1080/1755876X.2021.1946240
The presence of invasive species in the Mediterranean Sea is much higher than in other European seas, and understanding the reasons behind the range expansion of this invasive species is important for minimising any possible impacts to the already highly pressurised Mediterranean marine ecosystem. In this work, a brief description of sightings of t...
We examined how the trophic ecology of nine economically important marine taxa varied across three distinct areas of the Adriatic Sea. These taxa included three species of demersal fishes (European hake Merluccius merluccius, red mullet Mullus barbatus, black-bellied angler Lophius budegassa) and two species of decapod crustaceans (Norway lobster N...
This study focuses on the historical data from the “HVAR” Expedition, i.e. the M/V “HVAR” cruise researches into fisheries biology in the open Adriatic, carried out in 1948–1949. These results are still of great importance for the Adriatic, even today, 71 years after the conclusion of the expedition, as they provide a unique insight into the state...
Beam trawl fishery is highly important in the Croatian part of the northern Adriatic wherein 116 vessels have a licence for this type of fishing gear. A sharp decrease in the beam trawl catch observed since 2015 has raised concern about not only socio-economic issues but also ecological issues and the effect that beam trawl fisheries have had on ex...
Additional records of the Norwegian skate Dipturus nidarosiensis (Storm, 1881) from the Adriatic Sea are reported. Two specimens were collected in the southern Adriatic Pit in 2008 and 2010, respectively. The records reported herein improve our knowledge on the distribution of a rarely encountered, deep water species D. nidarosiensis, whose presenc...
The blue jack mackerel Trachurus picturatus (Bowdich, 1825) specimens (N = 155) were collected during the MEDITS survey, done along the eastern side, precisely, of the Croatian fishing ground in July 2018. Biometrical analysis of ten morphometric and five meristic characters, as well as genetic analysis proved that the collected specimens were blue...
Knowledge of connectivity among subpopulations is fundamental in the identification of the appropriate geographical scales for stock status evaluation and management, the identification of areas with greater retention rates, and space‐based fisheries management. Here, an integration of hydrodynamic, biological and habitat models results is used to...
Recently, despite long-term systematic research of the Adriatic Sea ecosystem, the necessity to improve the existing protection of commercially exploited species occurred since the status of many renewable marine stocks were not in good state. In order to realize that review of scientific knowledge gather within the last two decades was required. I...
Recently, despite long-term systematic research of the Adriatic Sea ecosystem, the necessity to improve the existing protection of commercially exploited species occurred since the status of many renewable marine stocks were not in good state. In order to realise that review of scientific knowledge gather within the last two decades was required. I...
Commission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4-10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, a...
Previous analyses of marine fish species richness based on presence‐absence data have shown changes with latitude and average species size, but little is known about the underlying processes. To elucidate these processes we use metabolic, neutral and descriptive statistical models to analyse how richness responds to maximum species length, fish abu...
This publication is a Science for Policy report by the Joint Research Centre (JRC), the European Commission’s science and knowledge service. It aims to provide evidence-based scientific support to the European policymaking process. The scientific output expressed does not imply a policy position of the European Commission. Neither the European Comm...
Most studies on European hake focus on the recruitment process and nursery areas, whereas the information is comparatively limited on the ecology of the juvenile stage (ca. second year of life)-the one most exploited by the Medi-terranean trawl fisheries. Using information of the MEDITS programme, we provide a spatial and temporal assessment of the...
Most studies on European hake focus on the recruitment process and nursery areas, whereas the information is comparatively limited on the ecology of the juvenile stage (ca. second year of life)-the one most exploited by the Medi-terranean trawl fisheries. Using information of the MEDITS programme, we provide a spatial and temporal assessment of the...
The high species richness, coupled with high proportion of endemism, makes the Mediterranean one of the world's 'biodiversity hotspots'. However, the continuous increase in fisheries in the last few decades has led to the overex-ploitation of their main commercial stocks. Using fishery-independent data collected under the framework of the MEDITS tr...
In this study we investigated the spatio-temporal distribution of gurnards (8 species of Triglidae and one species of Peristediidae) in the northern Mediterranean Sea using 22 years of MEDITS bottom trawl survey data (1994-2015). Gurnards showed significant differences in terms of abundance, dominance and composition among geographical sub-areas an...
Trawling pressure and environmental changes may affect the composition of fish assemblages. Our knowledge on large spatio-temporal patterns of demersal fish composition remains incomplete for the Mediterranean Sea. We investigated (1) the spatio-temporal stability of demersal assemblages, (2) the relationships between these assemblages and potentia...
The present work examines the spatio-temporal biomass trends of Mullus barbatus and Mullus surmuletus in the Mediterranean Sea through the analysis of a time series of data coming from the Mediterranean International Trawl Surveys (MEDITS), accomplished annually from 1994 to 2015. The biomass of both species showed clear declining trends below 150...
Most studies on European hake focus on the recruitment process and nursery areas while the information is comparatively limited on the ecology of juvenile stage (ca. second year of life) − the most exploited by the Mediterranean trawl fisheries. Using information of the MEDITS program, we provide a spatial and temporal assessment of the influence o...
The main aim of the present study is to increase the knowledge on the seasonal dynamics of the set gears used by Adriatic small-scale fisheries (SSFs) through the collation of data (landings, fishing effort, composition of catches, length-frequency distributions of target species and economic value of landings) on target species,. The study focused...
In the Adriatic Sea two cryptic species of sole coexist, the common and Egyptian sole. Soles are one of the most valuable demersal fishery resources in the Adriatic Sea, so a correct species identification is crucial in order to perform stock assessment and implement effective management measures based on reliable and accurate data. In this study s...
Summary of all barcoded Mediterranean Chondrichthyans generated by the integration of data from the three main barcoding initiatives by Moftah et al. (2011), Landi et al. (2014) and ELASMOMED, as well as other available studies (reported under the column OTHER).
Both the number of barcode records obtained from Mediterranean and non-Mediterranean sp...
Summary of taxa and individuals collected and barcoded for the ELASMOMED initiative.
The number of collected and barcoded individuals are reported for each chondrichthyan species and each FAO division as well as in total.
(XLSX)
Cartilaginous fish are particularly vulnerable to anthropogenic stressors and environmental change because of their K-selected reproductive strategy. Accurate data from scientific surveys and landings are essential to assess conservation status and to develop robust protection and management plans. Currently available data are often incomplete or i...
Haplotype parsimony networks of Dasyatis pastinaca reconstructed using ELASMOMED COI barcode sequences.
Each circle represents one haplotype and its size is proportional to frequency. Colours indicate the origin of samples according to FAO fishing divisions.
(TIF)
The GenBank Accession Numbers, BIN, Sample ID and Process ID of the 882 Mediterranean chondrichthyan individuals successfully barcoded by ELASMOMED.
(XLSX)
Complete list of mutations and positions characterizing each haplotype displayed in Fig 4.
For each species, the number of sequences used and the length of the alignment are reported.
(XLSX)
Small-scale fisheries (SSFs) play a considerable role in the overall seafood production and have potential to significantly contribute to a sustainable socioeconomic growth of the Adriatic Sea. This area has been inhabited for millennia and coastal ecosystems have been altered by several human activities. Due to its particular geo-morphology, fish...
Increasing human pressures and global environmental change may severely affect the diversity of species assemblages and associated ecosystem services. Despite the recent interest in phylogenetic and functional diversity, our knowledge on large spatio-temporal patterns of demersal fish diversity sampled by trawling remains still incomplete, notably...
This study describes the distribution patterns and population structure of greater weever in the Adriatic Sea. Biological data were obtained during MEDITS surveys in the spring-summer period. The aim of this study is to provide recent data for better understanding of species biology and to create basis for fisheries management based on ecological a...
We analyse fish diversity by a multiple indices and scales approach over 19 years.•Species richness and evenness are proxies of phylogenetic and functional components.•Species richness reveals hotspots for different spatial scales contrary to evenness.•All diversity components remains stable over the last two decades.
The first record of the deep-sea species Chtenopteryx sicula is reported from the Adriatic Sea. A total of six specimens of this rare species were caught, with bottom trawl and pelagic trawl nets, in the scope of the Deep Sea Research of the bathyal fauna in the South Adriatic Pit in 2008 and 2010. Specimens were caught at depths down to 1200 m, th...
Common sole in the northern and central Adriatic Sea: Spatial management scenarios to rebuild the stock, Journal of Sea Research (2014), doi: 10.1016/j.seares.2014.02.002 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manus...
The results of biometrical analysis of ten morphometric and six meristic characters of Gobius niger were presented in this paper. Total of 301 specimen of G. niger were collected in Croatian territorial waters. Total length of all analysed specimens ranged from 70 mm to 145 mm, with mean 109.90 ± 15.64 mm. Meristic counts of analyzed black goby wer...
Norway lobster, Nephrops norvegicus, is of great commercial importance throughout the NE Atlantic and Mediterranean, where it lives in burrows within muddy sediments. In several European countries it is assessed by means of towed underwater TV techniques. These are particularly suited to N. norvegicus because, for a number of reasons, the applicati...
The warty venus (Venus verrucosa Linnaeus, 1758) is commercially one of the most important bivalves in the Mediterranean Sea. Studies of reproductive cycle and gonad development of this species were conducted in Kaštela Bay, eastern Adriatic Sea, in a period between March 2009 and February 2010. We analysed sex ratios, gonad developmental stages, p...
The Expert Working Group meeting of the Scientific, Technical and Economic Committee for Fisheries EWG 12-19 was held from 10 – 14 December 2012 in Ancona, Italy to assess the status of demersal and small pelagic stocks in the Mediterranean Sea against the proposed FMSY reference point. The report was reviwed and adopted by the STECF during its Spr...
The growth rates of Venus verrucosa collected from five locations in the eastern Adriatic Sea, were studied using shell-sectioning techniques. At each sampling site, mean shell lengths at ring formation were asseessed and von Bertalanffy growth curves fitted. Asymptotic length (Linf) values ranged between 48.2 mm (Istria) to 57.9 mm (Pag Bay) and t...
Age, growth and condition index of commercially important chequered carpet shell Venerupis decussata (Linnaeus, 1758) were studied in the Pag Bay - eastern Adriatic Sea. Monthly samples were collected from commercial catch from January to November 2007. Age and growth were determined from internal growth bands of 69 shells ranging in length from 17...
To assess the potential of the bearded horse mussel (Modiolus barbatus) and Noah’s Ark shell (Arca noae) for aquaculture in southern Croatia, we analyzed their survival and growth rates under two experimental conditions—suspended culture and on-bottom culture. Furthermore, we investigated feeding on zooplankton by these two species in suspended cul...
A study of the age, growth and population structure of Acanthocardia tuberculata from the eastern Adriatic Sea was carried out. The condition index analysis identified one reproductive peak, which occurred between April and May, for a population of A. tuberculata in the Cetina River estuary with uni-modal recruitment. Annual growth rings on the ext...
The age, growth, and population structure of the smooth clam Callista chione were determined from samples collected by hydraulic dredge and SCUBA at four locations in the eastern Adriatic during 2007 and 2008. The age of 436 clam shells was determined from internal growth lines present in shell sections, and the timing of growth line formation was...
The teuthofauna assemblages of the Northern and Central Adriatic Sea were identified using a time series (1996- 2004) of bottom trawl surveys performed in the scope of the MEDITS project. During 8 trawl surveys a total of 32 cephalopod species was caught, belonging to 8 families. All species are known in the Adriatic Sea but some species as Neoross...
Hydraulic dredge surveys of bivalve communities in the Croatian part of the Adriatic Sea were conducted from the Island of Rab in the north to the river Neretva estuary in the south during 2007 and 2008. The main objective of the study was to describe distribution and community structure of bivalves on soft sediments along the eastern Adriatic, pri...
Recent theoretical and field studies conducted in both terrestrial and marine ecosystems have suggested that diversity could be a more complex and multi-component concept than previously thought. However, it is still poorly understood to what extent the information provided by the various indices is complementary with regard to diversity, and to wh...
Hydraulic dredge surveys of bivalve communities in the Croatian part of the Adriatic Sea were conducted from the Island of Rab in the north to the river Neretva estuary in the south during 2007 and 2008. The main objective of the study was to describe distribution and community structure of bivalves on soft sediments along the eastern Adriatic, pri...
Previous work has identified maximum body size as an important functional life-history trait for marine fish species influencing their growth, natural mortality, recruitment, and resilience to exploitation. We use data from a large number of scientific bottom trawl surveys from West Greenland to the Adriatic Sea to compare the distribution of speci...
Samples of Coelorinchus caelorhincus were collected by bottom trawl during MEDITS ("Mediterranean International Trawl Survey") in June 2003 in the northern and central Adriatic Sea. A total of 175 specimens of C. caelorhincus were used for analysis, of which 90 were males, 84 females and 1 indeterminate. Pre-anal length (PAL) in males ranged betwee...
Length-weight relationships, sex ratio, maturity patterns, reproductive outputs, fecundity and spawning period of the musky octopus Eledone moschata (Lamarck, 1798) in the northern and central Adriatic Sea are presented for the first time. Samples were collected on a monthly basis by commercial bottom trawls between October 2001 and June 2003. A to...
