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Number of results: 48
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Abstract

Endocrine disrupting compounds (EDCs) have the potential to alter hormone pathways that regulate life processes in humans, vertebrates and invertebrates. Besides xcnobiotics having endocrine effects, there arc naturally occurring estrogenie compounds. The limited number of studies with EDCs in invertebrates is partially due to the fact that their hormonal systems are rather poorly understood in comparison with vertebrates. It is also important, but difficult to discriminate between hormone - mediated and other toxicological modes of action. Data of the potentially adverse impact of EDCs on wildlife species are reviewed.
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Authors and Affiliations

Maria Łebkowska
Monika Załęska-Radziwiłł
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Abstract

Placoderms are the iconic prehistoric fish from the Devonian. Recent 3D scans have revealed their astonishing anatomical similarities with us humans.

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Authors and Affiliations

Piotr Szrek
Keywords Antarctic fish
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Abstract

The shelf fishing grounds of Kerguelen Islands and of some neighbouring ocean shallows were studied in April 1975. The occurrence of 15 species representing 9 families was found in the catches. Detailed study of the following five species was performed: Champsocephalus gunnari, Channichthys rhinoceratus, Notothenia rossi rossi, N. squamifrons and Dissostichus eleginoides, all of potential commercial importance. The boundaries of regions with concentrations of Ch. gunnari and N. squamifrons were determined, the productive and suitable for trawling fishing grounds were localized.

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Authors and Affiliations

Wiesław Ślósarczyk
Antoni Wysokiński
Keywords Antarctic fishes
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Abstract

During austral summer of 1979 in the area of Elephant Island ten species of fish representatives of five families, were identified.

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Authors and Affiliations

Jan Maciej Rembiszewski
Krzysztof Zieliński
ORCID: ORCID
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Abstract

Studies were performed on two species of fish from family Chaenichthyidae and on seven species of family Nototheniidae. Statistical analysis of the subcutaneous and trunk muscle fibres diameter from the trunk and tail area allowed to state that the thickness of these fibres is inversely proportional to the metabolism level of fish. The inter-species similarities were found, but they were not found within families, if their representatives differed in metabolic level.

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Authors and Affiliations

Ewa Śmiałowska
Wincenty Kilarski
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Abstract

226 papers by Polish authors and co-authors have been collected. They deal with Antarctic or sub-Antarctic fishes and also their parasites. The majority (35.7%) of the publications discuss fish biology including growth, age, maturity, feeding and occurrence of particular species in the area. Fewer papers are devoted to parasitology (26.0%). Papers dealing with fish biomass and exploitation make up 18.5%. Papers dealing with morphology and systematics make up 6.6%. The remaining papers are devoted to technology, physiology, palaeontology and others.

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Authors and Affiliations

Joanna Kulesz
Andrzej Kompowski
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Abstract

The paper comprises the review of all known species of cestodes parasitizing the Antarctic and Subantarctic fishes along with synonyms and keys based on morphological features. Also, the review of larval forms of cestodes occurring in bony fishes and provisional identification of them with adult forms is given. In total, 11 valid species (and 3 unnamed forms) of the order Tetraphyllidea and Diphyllidea occur in skates, whereas 3 species of the order Pseudophyllidea were reported from bony fishes. Six morphological forms of larvae, 5 belonging to the Tetraphyllidea and one to the family Tetrabothriidae as well as undetermined plerocercoids of Diphyllobothriidae were recognized.

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Authors and Affiliations

Anna Rocka
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Abstract

Blood of 71 specimens of Notothenia rossii marmorata and 61 specimens of Notothenia neglecta from the region of Admiralty Bay (King George Island) was examined. The number of erythrocytes and hemoglobin content were higher in the blood of N. neglecta. The number of erythrocytes and hemoglobin content were similar in males and females of both species. Considerable differences were noted between individual specimens.

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Authors and Affiliations

Stanisław Rakusa-Suszczewski
Czesław Żukowski
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Abstract

From July to October 1977, during the polar winter and at the beginning of spring, line-fishing was carried out at Admiralty Bay, near the Arctowski Station on King George Island, (South Shetland Islands). At that time only three species of fish were caught: Notothenia rossi marmorata, Notothenia coriiceps neglecta and Trematomus newnesi. Fish was caught in the irshore zone at depths ranging from 2 to 40—60 m.

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Authors and Affiliations

Czesław Żukowski
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Abstract

Juvenile fishes of the family Nototheniidae were recorded during fishing for krill eastwards of the Balleny Islands. The paper describes juveniles of the most abundant species. Trematomus bernacchii and Pagothenia brachysoma, their distribution and abundance. Also the correctness of assigning of some juveniles to the species T. bernacchii is discussed.

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Authors and Affiliations

Wiesław Slósarczyk
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Abstract

Between December 1978 and March 1979 studies on the ichthyofauna distribution in the regions of the Scotia Sea and Antarctic Peninsula were carried out on board of the r/v "Profesor Siedlecki" during the Fourth Polish Marine Antarctic Expedition. Fisheries were carried out using bottom and pelagic trawls. The presence of about 60 species of 15 families, including among others 17 species of Nototheniidae, 9 species of Chaenichthyidae and 7 species of Bathydraconidae was recorded. Iti the waters of the west regions of the Antarctic such species as Trematomus centronotus and Austrolycichtys botriocephalus were found.

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Authors and Affiliations

Krzysztof E. Skóra
Józef Sosiński
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Abstract

24 species of 8 fish families were found to occur on the shelf of Elephant Island during austral spring and summer of 1986/87 season. Notothenia gibberifrons was a predominant species (78—83% per catch). The presence of Champsocephalus gunnari and Chaenocephalus aceratus (15—20% per catch) almost completed fish composition profile. A pronounced decrease of Notothenia rossi (0.03—0.04% per catch) was noticed. Some specimens of Champsocephalus gunnari were characterized by a spawning-time shifted by almost half a year comparing to the remaining part of its population.

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Authors and Affiliations

Krzysztof E. Skóra
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Abstract

Plastic is one of the main pollutant sources that are difficult to decompose and then carried into the ocean and fragmented into smaller parts (microplastics) due to UV radiation and water currents. Their small size means that microplastics are often ingested by aquatic organisms, such as fish. This research aimed to determine the presence, abundance, and types of microplastics in the digestive tract of four dominant fishes landed at Lengkong Fish Auction Point, Cilacap, Central Java, i.e. threadfin ( Eleutheronema tetradactylum), mackerel ( Rastrelliger sp.), threadfin bream ( Nemipterus japonicus), and hairtail ( Trichiurus lepturus). We found microplastics in the digestive tract of four selected fishes with a frequency of occurrence of 100%. The concentration of microplastics in fish digestive tracts is relatively high, with a value range of 12 ±2.86 to 28.33 ±8.11 particles∙ind.<sup>-1</sup>. Microplastics were found in films, fibres, fragments, and granule shape types with various colours: brown, purple, blue, black, green, transparent, and yellow. The polymers found were polystyrene (PS), nylon, acrylonitrile butadiene styrene (ABS), polyurethane (PU), polypropylene (PP), high-density polyethylene (HDPE), and low-density polyethylene (LDPE). The present study provides baseline data for microplastics contamination in commercial fish species landed at Lengkong Fish Auction Point, Cilacap, Central Java, Indonesia. The fact that we discovered PU, the most harmful polymer, piques our attention.

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Authors and Affiliations

Nuning Vita Hidayati
1 2
ORCID: ORCID
Fenina O.B. Rachman
1
Muslih
1
Rizqi R. Hidayat
1 2
ORCID: ORCID
Maria D.N. Meinita
1 2
ORCID: ORCID
Hendrayana
1 2
ORCID: ORCID
Iqbal A. Husni
1 2
ORCID: ORCID
Sapto Andriyono
3
ORCID: ORCID
Dyahruri Sanjayasari
1 2
ORCID: ORCID

  1. Jenderal Soedirman University, Fisheries and Marine Sciences Faculty, Kampus Karangwangkal, Jl. dr. Suparno, 53123, Purwokerto, Indonesia
  2. Jenderal Soedirman University, Institute for Research and Community Service, Center for Maritime Biosciences Studies, Kampus Karangwangkal, Jl. dr. Suparno, 53123, Purwokerto, Indonesia
  3. Airlangga University, Faculty of Fisheries and Marine, Department of Marine, Mulyorejo, Surabaya, East Java, Indonesia
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Abstract

Comprehensive installation for wastewater treatment coming from the fish processing in the SUPERFISH plant in Ustronie Morskie, Poland, includes utilization of wastes which arise during working of this installation. This paper presents results of research on pyrolysis process of PE waste coming from the plant with the addition of dewatered sediments as well as post-flotation fats. Cementation was applied for utilization of secondary waste left alter the pyrolysis process. The results of examinations were approximated with equations applying the method of the central point. Next. the equations were verified. Results of the research showed that pyrolysis is effective in neutralization of examined waste, and secondary waste after the pyrolysis process after solidification is not dangerous for the environment.
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Authors and Affiliations

Tadeusz Piecuch
Tomasz Dąbrowski
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Abstract

Fatty acids are very important biological substances due to their metabolic, structural and signal- ing functions. Omega-3 has different beneficial, harmful and neutral effects on adipokines. Adi- pokines have autocrine, paracrine and endocrine effects on metabolism. In the study 54 German Fawn x Hair crossbred goats were synchronized using intravaginal sponges. During the first pe- riod (mating-75 days), all animals were fed a diet supplemented with protected fat and during the second period of pregnancy (76 days-kidding), one of the groups was fed a diet supplemented with fish oil and other was fed a diet supplemented with protected fat. Serum leptin, ghrelin, adi- ponektin and omentin levels were measured by ELISA system. Distributed fed (roughage and concentrate) were sampled and dry matter, crude protein, fat, and ash were determined by AOAC (1988) analysis methods. The Acid Detergent Fiber (ADF) and Neutral Detergent Fiber (NDF) analysis were conducted using heat stable α-amylase and sodium sulphite. Fat source (fish oil or protected fat) affected feed consumption and the highest feed consumption was found in the group fed with protected oil first half of the pregnancy and with fish oil in the second half of the pregnancy and in the fish oil group during the pregnancy. It was determined that the use of fish oil during pregnancy did not affect ghrelin, leptin and omentin concentrations in serum. Adipokine levels of fish oil fed animals during any period of pregnancy were found to be high and it was also found that serum adiponectin levels in goats fed with diet containing fish oil in the first half of pregnancy and protected fat in the second half were statistically significantly high in adipokines.

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Authors and Affiliations

K. Öztabak
U. Serbester
F. Esen Gürsel
I. Akış
A. Ateş
H. Yardibi
G. Atmaca
N. Koluman
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Abstract

During marine ecological surveys conducted by Polish expeditions in South Spitsbergen area 14 fish species were collected. The length frequency, the diet and some other ecological informations are presented for the most common species.

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Authors and Affiliations

Jan Marcin Węsławski
ORCID: ORCID
Wojciech Kuliński
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Abstract

Vibrio species are common inhabitants of aquatic environments and have been described in connection with fish and human diseases.
Six Vibrio species were isolated from diseased freshwater and ornamental fish in Poland. The strains were identified based on morphological and biochemical characteristics and confirmed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) as V. albensis (n=3) from Gymnocephalus cernua, Sander lucioperca, Paracheirodon innesi, and Xiphophorus hellerii; V. mimicus (n=1) from Xiphophorus maculatus; and V. vulnificus (n=1) from Nematobrycon palmeri. This is the first time that Vibrio species have been isolated and described from ornamental fish in Poland. The isolates were resistant to ampicillin (83.3%), gentamicin (16.6%), ciprofloxacin (16.6%), sulfamethoxazole-trimethoprim (16.6%), and chloramphenicol (16.6%). The multiple antibiotic resistance (MAR) index was 0.00-0.08 for V. albensis, 0.17 for V. mimicus, and 0.33 for V. vulnificus.
Our study confirmed the presence of potentially pathogenic Vibrio species in freshwater and ornamental fish. Therefore, further monitoring of the presence of Vibrio species, mainly in ornamental fish, is necessary.
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Bibliography

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Authors and Affiliations

A. Pastuszka
1
L. Guz
1
K. Michalak
2
D. Pietras-Ożga
2
K. Puk
1

  1. Department of Biology and Fish Diseases, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-950 Lublin, Poland
  2. Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences, Głęboka 30, 20-612 Lublin, Poland
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Abstract

During the SIBEX1' programme in December 1983/January 1984, 27 hauls were made from the "Profesor Siedlecki" with a 368 — mesh midwater sampling trwal. A total of 13 fish species at postlarval or juvenile stages was found in the catches. The greatest aboundance and species diversity of juvenile ichthyofauna was observed within shelf waters of the Peninsula. Postlarval and juvenile Pleuragramma antarcticum was the most common and most aboundant species there.

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Authors and Affiliations

Wiesław Slósarczyk
Zdzisław Cielniaszek
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Abstract

Ichthyophthiriasis, which is caused by Ichthyophthirius multifiliis (Ich) infections, has a severe impact on productivity in freshwater aquaculture. These infections were previously treated effectively with malachite green, a compound that is now banned on fish farms due to its carcinogenicity. To find efficacious drugs to control Ich, flowers of tansy Tanacetum vulgare were evaluated for their antiprotozoal activity. Tanacetum vulgare extract significantly reduced the survival of Ich trophonts and theronts. In vitro, the extract killed all trophonts at 3200 mg l-1, terminated tomont reproduction at 50 mg l-1, and caused mortality of all theronts at 100 mg l-1. T. vulgare extract may be a new and efficacious drug for the control of Ich.
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Bibliography

1. Buchmann K, Sigh J, Nielsen CV, Dalgaard M (2001) Host responses against the fish parasitizing ciliate Ichthyophthirius multifiliis. Vet Parasitol 100: 105-116.
2. Fu YW, Zhang QZ, Xu DH, Xia H, Cai XX, Wang B, Liang J (2014) Parasiticidal effects of Morus alba root bark extracts against Ichthyophthirius multifiliis infecting grass carp. Dis Aquat Organ 108: 129-136.
3. Kumar V, Tyagi D (2013) Chemical composition and biological activities of essential oils of genus Tanacetum − a review. J Pharm Phytochem 2: 155-159.
4. Lahnsteiner F, Weismann T (2007) Treatment of ichthyophthiriasis in rainbow trout and common carp with common and alternative therapeutics. J Aquat Anim Health 19: 186-194.
5. Puk K, Guz L (2014) Effects of medical plant extracts on the growth of the fish parasite Spironucleus vortens. Med Weter 70: 165-168.
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Authors and Affiliations

K. Puk
1
L. Guz
1

  1. Department of Fish Diseases and Biology, Faculty of Veterinary Medicine, University of Life Sciences, Akademicka 12, 20-033 Lublin, Poland
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Abstract

Structural solutions in terms of fish ladders and the use of natural materials to construct them often raise concerns regarding the possibility of using the standard calculation methods. The fish ladder being designed on the Wisłok river consists of three pools, separated from each other by baffles made of rock boulders. The purpose of this study was to analyze water surface profiles for fish ladder at specific values of flow rates. The paper presents the results of hydraulic calculations under the conditions of constant flow rate based on the concept of a minimum specific energy. According to this method, water flow through boulders is critical. Thus, it does not take into account head losses, which are hard to estimate and which are the integral part of typical calculation methods, e.g. the use of equations to determine the flow rate of a weir. An additional advantage of this method is that there is no need to assume the flow pattern of one specific weir. Verification calculations of the water depths were conducted using the HEC–RAS software, under an assumption of an one-dimensional steady water flow. Water depths in the fish ladder, calculated using both methods, were similar, despite the adopted different calculation concepts, and can be used in ichthyologic analyses.
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Authors and Affiliations

Michał Kubrak
1
ORCID: ORCID
Błażej Smoliński
1
ORCID: ORCID
Jaromír Riha
2
ORCID: ORCID
Apoloniusz Kodura
1
ORCID: ORCID
Paweł Popielski
1
ORCID: ORCID
Kamil Jabłoński
3

  1. Warsaw University of Technology, Faculty of Building Services, Hydro and Environmental Engineering, ul. Nowowiejska 20, 00-653 Warsaw, Poland
  2. Brno University of Technology, Faculty of Civil Engineering, Veverí 331/95, 602 00 Brno, Czech Republic
  3. Energoprojekt-Warszawa SA, Al. Niepodległosci 58, 02-626 Warsaw, Poland
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Abstract

Polish exploration and exploitation of marine resources of Antarctic waters date back to the reconnaissance cruise of the Sea Fisheries Institutes (SFI) r/v Profesor Siedlecki in 1974. Since 1975, a co-operation between the Institute of Ecology, Polish Academy of Sciences (PAS) at Dziekanów Leśny and SFI in Gdynia with participation of the University of Agriculture in Szczecin, Faculty Marine Fisheries and Food Technology (UA) was established. Fishing fleets of the Polish Deep-Sea Fisheries Companies Odra, Dalmor and Gryf, since 1976 were operating in the Atlantic sector of Antarctic waters, south of the convergence.

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Authors and Affiliations

Juliusz C. Chojnacki
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Abstract

A total of 704 fishes representing 39 species were examined. Twenty five digenean species were recognized. Only one species previously found by the present author in a fiord of this area was absent in the material. Pelagic species were usually not parasitized by digeneans, while demersal fishes were normally found to be infected. Results of the present study are compared to those from fiords. Seven species were found to be widely distributed. Two of them, Macvicaria pennelli and Genolinea bowersi, were associated with an inshore fiord environment and could be used as biological tags indicating the association of hosts with this kind of environment. Three of widely distributed species, Lepidapedon garrardi, Elytrophalloides oatesi and Lecilhaster macrocotyle, were not clearly associated with any environment.

Gonocerca phycidis, Neolebouria antarctica and other less widely distributed species, with the exception of Postmonorchis variabilis, were associated with deep part of fiords and/or open sea shelf environment. The level of infection of open sea fish at the South Shetlands was low. Many fish species living at South Georgia were massively infected; the dominant species in this area is E. oatesi, which was rare off the South Shetland Islands. A total of 45 digenean species occurring in the Antarctic fish were listed. Eleven of them were not endemic.

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Authors and Affiliations

Krzysztof Zdzitowiecki
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Abstract

The aim of this study was to assess the anisakid nematode distribution pattern in the fish collected from the South Shetland Islands . A total of 32 fish species were examined for the presence of nematodes in 1978, 1979, 1981 and 2007/2008. The fish were caught off the South Shetland Islands ( Elephant Island , Shishkov Island and in Admiralty Bay – King George Island ). Three genera of L3 larval nematodes were identified: Anisakis sp., Contracaecum spp. and Pseudoterranova decipiens. The infection level was higher on the shelf around the islands than in Admiralty Bay . This is explained by a higher abundance of the final hosts in the region. A comparison of the infection data from 1978/79 and 2007/2008 with data from 1994/96 (Palm et al. 1998, 2007) was done. The parameters of infection of Notothenia coriiceps and Lepidonotothen nudifrons by Pseudoterranova decipiens were decreasing within the 30 years period.

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Authors and Affiliations

Jerzy Rokicki
Galina Rodjuk
Krzysztof Zdzitowiecki
Zdzisław Laskowski

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