Svjetlana KRSTULOVIĆ Šifner

Svjetlana KRSTULOVIĆ Šifner
University of Split · University Department of Marine Studies

PhD

About

47
Publications
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476
Citations

Publications

Publications (47)
Article
One reversal dextral (right‐sided) specimen occurred in the sample of 1070 individuals of four‐spotted megrim Lepidorhombus boscii caught in the Central Adriatic Sea in the period from July 2020 to June 2021. This is the first documented occurrence of reversal in this species in the Adriatic Sea. Besides reverse symmetry, the individual showed simi...
Article
Sagittal otolith morphology and otolith shape of two megrim species, Lepidorhombus boscii and Lepidorhombus whiffiagonis , were compared using descriptive morphological characters and Wavelet shape coefficients. Differences in otolith shape were examined by linear discriminant analysis (LDA). The first discriminant axis explained 66.6% of the varia...
Article
Analysis of statolith growth increments was used to determine age and describe growth pattern of broadtail shortfin squid Illex coindetii in the central eastern Adriatic Sea, an important demersal resource in the Adriatic basin. Size-at-age data were obtained from a large sample (N = 476, including 249 males and 227 females) of individuals with dor...
Article
Full-text available
Fish or crustaceans stuck in the fishing gear meshes can lead to operational problems in some fisheries and thereby affect the economic gain. However, mesh sticking probability has never been formally quantified as part of the estimation of fishing gear size selectivity. Therefore, this study developed a size selection model and estimation procedur...
Article
Full-text available
The Mediterranean Sea shows a trend of increasing temperature and decreasing productivity from the western to the eastern basin. In this work we investigate whether this trend is reflected in the cephalopod assemblages found throughout the Mediterranean. Data obtained with bottom trawl surveys carried out during the last 22 years by EU Mediterranea...
Article
In the laboratory, we investigated which sizes of Nephrops (Nephrops norvegicus) could pass through the meshes of different size and shape to establish a predictive model for the creels size selectivity. Predictions agreed well with the results from experimental fishing, demonstrating the reliability of this simple method. Nephrops minimum target s...
Article
In the Mediterranean Sea Nephrops (Nephrops norvegicus) is predominantly caught with bottom trawls, but it is also harvested with creels. While the size selection of Nephrops in bottom trawls is well documented, there is no previous information on creel size selection for this species. Therefore, sea trials were carried out to assess the selective...
Article
Full-text available
Specimens of Ancistroteuthis lichtensteinii were collected in the South Adriatic Pit during the deep-sea research performed in the South Adriatic Pit in 2010. They were caught at depths between 690 and 1.200 m with pelagic and bottom trawls. A total of 39 individuals were collected. The mantle length ranged from 13 to 129 mm, and body weight from 0...
Research
Full-text available
Sepia orbignyana was studied in the eastern part of the Northern and Central Adriatic Sea at samples collected from 1996 to 2011. A total of 249 individuals was analysed. The species was widely distributed in the Central Adriatic Sea and in some areas of the Northern Adriatic Sea, at depths between 22 and 237 m, with greater density recorded from 5...
Article
Creel catch performance is known to be affected by the soak time in many fisheries. If creels maintained their efficiency over longer periods, increase in soak time should lead to proportional increase in catch quantity. However, the exact shape of this relationship is unknown for creel fisheries targeting Norway lobster (Nephrops norvegicus). If i...
Article
Full-text available
Discarding is considered globally among the most important issues for fisheries management. The recent reform of the Common Fisheries Policy establishes a landing obligation for the species which are subject to catch limits and, in the Mediterranean, for species which are subject to Minimum Conservation Reference Size (MCRS) as defined in Annex III...
Technical Report
Full-text available
An evaluation of national discards programs has been done by identifying all potential loopholes in methodology. Different technical and environmental factors that influence discard rates have been identified and summarized. Furthermore, selective properties of demersal and pelagic trawls have been summarized in relation with the MLS and landing ob...
Article
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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...
Article
Full-text available
This paper presents the first information on Eledone cirrhosa beak morphometry and pigmentation in the Adriatic Sea. The analysis was performed on beaks from 136 female and 82 male specimens caught by demersal trawls in the south–eastern Adriatic. Male–to–female ratio was 0.6:1. Males had larger beaks relative to the mantle length than females, but...
Article
Full-text available
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...
Article
Full-text available
Squids are especially frequent as paratenic hosts of helminth parasites, particularly to those that have elasmobranchs and mammals as final hosts. Among those parasite species, anisakid nematode larvae and cestode plerocercoids are most effectively transferred through the trophic chain by oegopsid squids. A total of 439 short-finned squids, Illex c...
Article
Full-text available
The teuthofauna assemblages of the Northern and Central Adriatic Sea were identified utilising 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. Neo...
Article
Full-text available
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...
Article
This work aimed to investigate intraspecific variation of Illex coindetii morphometric characters in the Adriatic Sea and study the relationship betx\ een body size and various beak lengths in order to provide predictive equations for further investigations regarding prey size reconstruction. A length-weight relationship of L coindetii and descript...
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
Population structure and distribution of the thornback ray, Raja clavata, L. 1758, in the northern and central Adriatic Sea were described based on data from bottom trawl surveys conducted in the area between 1996 and 2006 within the scope of the ‘MEDITS’ project. R. clavata was caught at depths between 23 and 270 m; highest abundance and density i...
Article
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This paper presents data on the diet of the musky octopus, Eledone moschata, caught with bottom-trawl nets in the northern Adriatic Sea from October 2001 to June 2003. A total of 1226 stomachs were examined, out of which 34.8% were empty. Several indices were used to describe the diet of the species. Crustaceans were found to be the most important...
Article
Full-text available
Noah's Ark shell Arca noae is an edible bivalve that is commercially exploited in the eastern Adriatic and is harvested primarily by SCUBA divers. There are no reliable data catch statistics data for this species nor there any data on dis-tribution and population biology of exploited stocks, all of which are crucial for establishing sustainable lev...
Article
Full-text available
Noah’s Ark shell Arca noae is an edible bivalve that is commercially exploited in the eastern Adriatic and is harvested primarily by SCUBA divers. There are no reliable data catch statistics data for this species nor there any data on distribution and population biology of exploited stocks, all of which are crucial for establishing sustainable leve...
Article
Full-text available
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...
Article
Full-text available
Recently, three females of the rare pelagic species Ocythoe tuberculata (Rafinesque, 1814) were recorded in the Eastern Adriatic Sea. One specimen was collected near the northern shore of the island Koločep in May 2006, while another was collected near the northern shore of the island Hvar in June 2006. The third individual was found near the north...
Article
Full-text available
Different methods used in age determination of cephalopods and their impor- tance for assessment and management purposes for this group of marine or- ganisms are described in the paper. Scientific investigations have proved that indirect methods (length frequency data) are not reliable enough and should always be accompanied with one direct method,...
Article
Recently, three females of the rare pelagic species Ocythoe tuberculata (Rafinesque, 1814) were recorded in the Eastern Adriatic Sea. One specimen was collected near the northern shore of the island Koločep in May 2006, while another was collected near the northern shore of the island Hvar in June 2006. The third individual was found near the north...
Article
Full-text available
Two specimens of Neorossia caroli have been recorded for the first time in the central Adriatic Sea. They were caught in summer 2004 with a bottom-trawl net during a single tow at depths between 449 and 594 m in Croatian waters. Up to now N. caroli has never been found in the central Adriatic area. This finding represents a northernmost extension i...
Article
Full-text available
Two specimens of Neorossia caroli have been recorded for the first time in the central Adriatic Sea. They were caught in summer 2004 with a bottom-trawl net during a single tow at depths between 449 and 594 m in Croatian waters. Up to now N. caroli has never been found in the central Adriatic area. This finding represents a northernmost extension i...
Article
Full-text available
Recent demographic structure and distribution of the fish species Zeus faber in the Adriatic Sea were investigated in this study and compared with a 1948–1949 study. The presence of John Dory in the Adriatic Sea was recorded at a depth range from 21 to 239 m, with the highest biomass indices at depths between 50 and 100 m. The length frequency dist...
Article
Full-text available
The composition and spatial distribution of cephalopods in the eastern Adriatic and the eastern Ionian Sea were analyzed based on the samples collected during the trawling campaigns performed in 1996, 1997, 1998, and 2000 in the framework of the MEDITS Project "International Bottom Trawl Survey in the Mediterranean Sea ". Cephalopod samples were co...
Article
Full-text available
This paper presents data on the population structure, maturation patterns, fecundity, reproduction, and length–weight relationships of the European squid, Loligo vulgaris, in the Central Adriatic Sea. This species is one of the most valuable commercial cephalopods in the fishery of the Adriatic Sea, yet the population structure and reproductive bio...
Article
Full-text available
Trawl surveys carried out in the Adriatic Sea in 1948 and 1998 provided information on the changes that occurred in the composition and distribution of demersal fish resources over the 50 years period. The main change was the decrease of elasmobranchs diversity and frequency, mostly referring to the Hypotremata group. Life history parameters appear...
Article
U cilju proširenja znanstvene spoznaje o ekologiji i dinamici, a time i oblicima zaštite pridnenih naselja Jadranskog mora, prostorno zajedničko i ekonomski djeljivo obilježje oslića (Merluccius merluccius), trlje blatarice (Mullus barbtus) te skupine riba hrskavičnjača (Chondrichthyes) je studirano po prvi put uporabom GIS (Geographic Information...
Article
Based on previous studies, in the East Adriatic Sea (Croatia) the Neretva River estuary has been identified as area of high scientific and commercial interest. This area is particularly suitable for natural shellfish bed especially for clams (Chamelea gallina). A study has been carried out for the evaluation of C. gallina resource with the particip...
Article
Full-text available
Some biological aspects of E. moschata are presented in this paper — length frequency distribution, length–weight relationship, length at 50% maturity and gonadosomatic index (GSI). A total of 173 individuals were examined: 83 males, 88 females and 2 of undetermined sex. The samples were collected during 2009 and 2010 from commercial trawlers. Leng...

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Projects (3)
Archived project
Project
1. Development and application of LEK Interview-protocol (survey questionnaire) 2. Data analysis and comparison of research based scientific data (knowledge) (RBK) with data collected through LEK surveys 3. Identification of tropicalization/meridionalization and abundance change indicator species with emphasis on invasive species: providing baseline biological fisheries data for timely response.