scholarly journals Parasite fauna of white-streaked grouper, Epinephelus ongus (Bloch, 1790) (Epinephelidae) from Karimunjawa, Indonesia

2016 ◽  
Vol 2 ◽  
Author(s):  
KILIAN NEUBERT ◽  
IRFAN YULIANTO ◽  
SONJA KLEINERTZ ◽  
STEFAN THEISEN ◽  
BUDY WIRYAWAN ◽  
...  
Keyword(s):  
Species Diversity ◽  
Habitat Preferences ◽  
Parasite Community ◽  
Parasite Fauna ◽  
Shannon Index ◽  
New Host ◽  
Metazoan Parasites ◽  
Comprehensive Information ◽  
Java Sea ◽  
Epinephelus Ongus

SUMMARYThis study provides the first comprehensive information on the parasite fauna of the white-streaked grouperEpinephelus ongus. A total of 35 specimens from the archipelago Karimunjawa, Java Sea, Indonesia were studied for metazoan parasites. For comparison, the documented parasite community of 521E. areolatus,E. coioidesandE. fuscoguttatusfrom previous studies were analysed. A total of 17 different parasite taxa were recognized forE. ongus, including 14 new host and four new locality records. This increases the known parasite taxa ofE. ongusby more than 80%. The ectoparasite fauna was predominated by the monogeneanPseudorhabdosynochus quadratusresulting in a low Shannon index of species diversity of the entire parasite community (0.17). By contrast, the species diversity excluding the ectoparasites reached the highest value recorded for Indonesian epinephelids (1.93). The endoparasite fauna was predominated by generalists, which are already known from Indonesia. This demonstrates the potential risk of parasite transmission throughE. ongusinto mariculture and vice versa. One-way analyses of similarity revealed a significantly different parasite community pattern ofE. onguscompared withE. areolatusandE. fuscoguttatusas well as minor differences withE. coioides. This finding refers to different habitat preferences of these epinephelids within the analysed size range.

scholarly journals Parasite Fauna of the White-Streaked Grouper (Epinephelus ongus) from the Thousand Islands, Java, Indonesia

2020 ◽  
Author(s):  
Svenja Koepper ◽  
S. Nuryati ◽  
Harry Wilhelm Palm ◽  
S. Theisen ◽  
C. Wild ◽  
...  
Keyword(s):  
Parasite Community ◽  
Parasite Fauna ◽  
Transmission Risk ◽  
Fish Parasites ◽  
Parasite Transmission ◽  
New Host ◽  
Metazoan Parasite ◽  
Thousand Islands ◽  
Java Sea ◽  
Epinephelus Ongus

Abstract Purpose Fish parasites can cause diseases in humans and lead to commercial losses in fisheries and aquaculture. The objectives of this study were to analyze E. ongus’s parasite fauna regarding food safety and parasite transmission risk between Epinephelus species and test whether E.ongus populations can be distinguished by their parasite community. Methods We studied the metazoan parasite fauna of 30 white-streaked groupers Epinephelus ongus from the Thousand Islands, Java Sea, Indonesia, and compared the parasite community with specimens from Karimunjawa archipelago, Java Sea, from a former study. We used common fish parasitological methods for fish examination and parasite calculations. Results We found 12 metazoan parasite species, establishing five new host and five new locality records, increasing the known parasite fauna of E. ongus by 21%. No anisakid worms infected E. ongus. All but one (trematode Gyliauchen cf. nahaensis) species have been previously reported from Epinephelus. Parasite abundance of E. ongus differed significantly between the two regions. Conclusions Due to a certain degree of host specificity to groupers, there is potential risk of parasite transmission from E. ongus into groupers in mariculture or surrounding fishes, which increases (sea) food security related health risks from zoonotic parasites and calls for better monitoring and management plans for E. ongus. The regional separation of the Thousand Islands and Karimunjawa with different food availability and fish ecology causes different parasite abundances, distinguishing two separate E. ongus populations by their parasite fauna.

scholarly journals Community ecology of the metazoan parasites of Brazilian sardinella, Sardinella brasiliensis (Steindachner, 1879) (Actinopterygii: Clupeidae) from the coastal zone of the State of Rio de Janeiro, Brazil

2015 ◽  
Vol 75 (3) ◽  
pp. 736-741 ◽  
Author(s):  
J Moreira ◽  
F Paschoal ◽  
AD Cezar ◽  
JL Luque
Keyword(s):  
Rio De Janeiro ◽  
Positive Association ◽  
Host Record ◽  
Parasite Community ◽  
The State ◽  
Significant Positive Association ◽  
New Host ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Total Length

AbstractBetween March 2010 and August 2011 were necropsied 100 specimens of Sardinella brasiliensis (Steindachner, 1879), from the coast of the State of Rio de Janeiro, Brazil (22°51’S, 43°56’W), to study their community of metazoan parasites. All specimens of S. brasiliensis were parasitized by at least one species of metazoan parasite, with mean of 68.7 ± 71.2 parasites/fish. Eleven species were collected: 3 digeneans, 1 monogenean, 2 cestodes, 3 nematodes and 2 copepods. The digenean Myosaccium ecaude Montgomery was the most abundant, prevalent, and dominant species, representing 72.7% of metazoan parasites collected, showing positive correlation between host’s total length and parasite abundance. Total parasite abundance was positively correlated with host’s total length. Three pairs of adult endoparasites showed significant positive association and covariation. The parasite community of S. brasiliensis showed dominance by digeneans. Sardinella brasiliensis represents new host record for most found parasite species.

scholarly journals A Visitor of Tropical Waters: First Record of a Clymene Dolphin (Stenella clymene) Off the Patagonian Coast of Argentina, With Comments on Diet and Metazoan Parasites

2021 ◽  
Vol 8 ◽  
Author(s):  
Jesús S. Hernández-Orts ◽  
David I. Hernández-Mena ◽  
Camila Pantoja ◽  
Roman Kuchta ◽  
Néstor A. García ◽  
...  
Keyword(s):  
Host Record ◽  
First Record ◽  
Molecular Data ◽  
Immature Stage ◽  
Parasite Fauna ◽  
Cetacean Species ◽  
New Host ◽  
Metazoan Parasites ◽  
Metazoan Parasite ◽  
New Host Record

The poorly known Clymene dolphin (Stenella clymene) is a small oceanic cetacean distributed in tropical and subtropical waters of the Atlantic Ocean. In this study, we report, for the first time, a vagrant individual of Clymene dolphin in Argentina (Rada Tilly) that represents the current southern-most record for this cetacean species. We provide a molecular identification of the dolphin, based on partial sequences of the mitochondrial cytochrome b gene, generated from DNA extracted from its metazoan parasites. Three prey species, namely Argentine hake, Patagonian squid and lobster krill were identified from hard pieces collected in the stomach. Seven metazoan parasite taxa (three in adult stage, one immature stage and three in larval stage) were identified using morphological and molecular data, i.e., the digenean Pholeter gastrophilus (new host record), the cestodes Tetrabothrius (Tetrabothrius) forsteri, Clistobothrium grimaldii unidentified phyllobothriid plerocercoids, the nematodes Anisakis pegreffii (new host record), Halocercus delphini and the acanthocephalan Corynosoma australe (new host record). Our study provides the first molecular exploration of the metazoan parasite diversity in delphinids from the southwestern Atlantic, and contributes significantly to understand the poorly known parasite fauna of the Clymene dolphin.

Parasites as biological tags for Eleginops maclovinus (Teleostei: Eleginopidae) around the Falkland Islands

2007 ◽  
Vol 81 (2) ◽  
pp. 147-153 ◽  
Author(s):  
Paul Brickle ◽  
Ken MacKenzie
Keyword(s):  
Function Analysis ◽  
Hierarchical Cluster ◽  
Parasite Fauna ◽  
Falkland Islands ◽  
New Host ◽  
Metazoan Parasites ◽  
Linear Discriminant ◽  
Eleginops Maclovinus ◽  
Agglomerative Hierarchical Cluster Analysis ◽  
Biological Tags

AbstractThis is the first study of the parasite fauna of Eleginops maclovinus in the Falkland Islands. It was undertaken to catalogue the parasite fauna of E. maclovinus in order to provide a baseline for future studies and to determine whether parasites might be used as biological tags. Between 21 January and 17 March 2002 samples were taken from three stations, Teal Creek (30 fish), Port Louis (30 fish) and Camilla Creek (10 fish), all in East Falkland, and examined for protozoan and metazoan parasites. Twenty-four parasite taxa were recorded, of which three were possible new species, two new host records and five new geographical records. Because of the small number of fish in the Camilla Creek sample it was excluded from further analyses. E. maclovinus is a protandrous hermaphrodite and all fish greater than 53 cm total length were found to be female, so these too were excluded from further analyses. The parasite data from the remaining fish were analysed by an agglomerative hierarchical cluster analysis using an average linkage and a Jaccard measure of similarity, followed by a linear discriminant function analysis (LDA). Both analyses misclassified only one fish from Port Louis as being from Teal Creek, with the LDA giving an overall correct classification of 97.5% (39/40). The results support mechanical tagging data in suggesting that smaller male E. maclovinus are resident in the creeks in which they are caught, and that at this stage of their lives they tend not to migrate over long distances.

scholarly journals Habitat Preferences Dictate Amphibian Assemblage and Diversity in Langkawi Island, Kedah, Peninsular Malaysia

2021 ◽  
Vol 50 (3) ◽  
pp. 605-616
Author(s):  
NUR JOHANA JOHARI ◽  
AMIRRUDIN AHMAD ◽  
EHWAN NGADI ◽  
MUZZNEENA AHMAD MUSTAPHA ◽  
LARRY LEE GRISMER ◽  
...  
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Riparian Forest ◽  
Habitat Preferences ◽  
Distribution Patterns ◽  
Peninsular Malaysia ◽  
Shannon Index ◽  
Habitat Types ◽  
Important Species ◽  
Forest Habitats

Various habitats found on Langkawi Island such as agricultural fields, peat swamps, lowland forests, upland forests, and riverine forests are occupied by many species of anuran fauna. These variations provide a platform to explore species diversity, distribution, and other ecological parameters to understand the distribution patterns and to facilitate the management of important species within particular areas. The objective of this study was to compare species richness of anuran species in different types of habitat on Langkawi Island, Malaysia. We surveyed seven types of habitat, namely agriculture (AG), coastal (CL), forest (FT), pond (PD), fisherman village near estuarine mangrove (FVM), riparian forest (RF), and river (RV). A total of 775 individuals were recorded, representing 23 species from 14 genus and six families known to occur on Langkawi Island. Forest (FT) and riparian forest (RF) (both forest habitats) indicated relatively high values of Shannon Index (H’), 2.60 and 2.38 respectively, compared to the other non-forest habitats, CL (1.82), RV (1.71), FVM (1.56), PD (1.54), and AG (1.53). Rank abundance curves showed that the majority of disturbed habitats displayed geometric series models and broken stick models, whereas forest habitat types (FT and RF) represented log normal models. The performance of species richness estimators varied but Chao 1 estimator performed well for many sampled habitat types and showed the tendency to coalesce with Sobs (Mao Tau) curves except for CL and FVM. As expected, the forested habitat (FT and RF) was more diverse in species diversity compared to those of non-forest groups. Nevertheless, non-forested species were found in abundance, highlighting the relevance of these habitats in supporting the amphibian fauna. This study highlights the importance of habitat types in structuring species diversity and community structures and suggest that the information may be useful to improve conservation practices of inland amphibian habitats.

scholarly journals Species composition and structure of parasites component communities of tugun Coregonus tugun (Pallas, 1814) from the Khatanga and Yenisei Rivers

2019 ◽  
Vol 8 (3) ◽  
pp. 72-80
Author(s):  
Kseniya Viktorovna Polyaeva ◽  
Gennady Nikolaevich Dorovskikh ◽  
Yuliya Konstantinovna Chugunova
Keyword(s):  
Species Composition ◽  
Parasite Community ◽  
Shannon Index ◽  
Egg Laying ◽  
Entire Study ◽  
Generalist Species ◽  
Parasite Communities ◽  
Composition And Structure ◽  
Number Of Individuals ◽  
Species Composition And Structure

Tugun Coregonus tugun (Pallas, 1814) is an endemic of Siberia. Information about the species composition and structure of tugun parasite community on the stage of spawning migration is described in this paper. We carried out ichtioparasitologic studies in the Yenisey and the Khatanga Rivers in 2011-2014. Tugun parasite complex from the Khatanga River remains statistically identical in species composition, number of individuals and biomass and differs from those of the Yeniseis tugun over the entire study period. Apparently two different stocks of tugun were investigated in the Yenisei River. One of them lives in the Yeniseis streambed, the other one lives in the Podkamennaya Tunguska River. The composition of the parasitic fauna of tugun from two rivers is formed by generalist species. Tugun parasites component communities from all material collection stations have high values of the Shannon index and two dominant species (by numbers of parasites and by biomass). We found out that the species biomasses differ significantly on the graphic community structure. The description of tugun parasite communities corresponds to characteristic of a climax community on the stage of destruction except the graphic structure. In the analyzed parasitic communities the processes of egg laying and larval appearance, the death of parasites of previous year generation and infection with this year parasites occur simultaneously. The stages of formation and destruction of the community overlap. The described state of tugun parasites communities has an adaptive value. The load on the host body is reduced which ensures the long-term existence of parasites.

scholarly journals Community ecology of the metazoan parasites of namorado sandperches, Pseudopercis numida Miranda-Ribeiro, 1903 and P. semifasciata Cuvier, 1829 (Perciformes: Pinguipedidae), from the coastal zone of the State of Rio de Janeiro, Brazil

2008 ◽  
Vol 68 (2) ◽  
pp. 269-278 ◽  
Author(s):  
JL. Luque ◽  
NN. Felizardo ◽  
LER. Tavares
Keyword(s):  
Species Richness ◽  
Rio De Janeiro ◽  
Parasite Species ◽  
Neotropical Region ◽  
Component Community ◽  
New Host ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Parasite Species Richness ◽  
Total Length

One hundred and twenty-eight specimens of namorado sandperches, 62 P. numida and 66 P. semifasciata, collected between October 2002 and June 2003 off the Cabo Frio, Rio de Janeiro, Brazil (Lat 23° S and Long 42° W), were examined to study their metazoan parasites. Parasite communities of these fish were composed basically of endoparasites, mainly digenean and cestodes species, with low prevalence and abundance but having high parasite species richness values (at the component community level). Among these values, that found for P. numida is the highest so far recorded for marine fishes from the Neotropical Region. Thirty-nine species of metazoan parasites were collected: 36 from P. numida and 28 from P. semifasciata. Twenty-five parasite species were common to both species of namorado sandperches. Pseudopercis numida and P. semifasciata are new host records for all parasite species collected, with the exception of Microcotyle pseudopercis. Choanodera sp., Leurodera decora, Neolebouria georgenascimentoi, and Proctoeces sp. which were recorded for the first time in the South American Atlantic Ocean. Gnathia sp. from P. numida and Scolex pleuronectis from P. semifasciata were the species having the greatest dominance frequency. Parasite abundance in P. numida and P. semifasciata were positively correlated with the host total length. Only in P. numida was parasite species richness correlated positively with the host total length. No significant differences between endoparasite infracommunities of P. numida and P. semifasciata were detected. The ectoparasites of P. numida had higher values for parasite abundance, parasite richness, Brillouin index, evenness index, and Berger-Parker index than those of the ectoparasites of P. semifasciata. Comparisons among all ecto- and endoparasites showed the ectoparasites of P. numida as the most heterogeneous group. Low similarity values were observed among the three types of parasite infracommunities of the two hosts.

Parasites of round goby, Neogobius melanostomus, currently invading the Elbe River

2019 ◽  
Vol 48 (1) ◽  
pp. 56-65 ◽  
Author(s):  
Yuriy Kvach ◽  
Markéta Ondračková ◽  
Michal Janáč ◽  
Vadym Krasnovyd ◽  
Mária Seifertová ◽  
...  
Keyword(s):  
Round Goby ◽  
Parasite Community ◽  
Neogobius Melanostomus ◽  
Published Data ◽  
Tidal Zone ◽  
New Host ◽  
The North ◽  
Round Gobies ◽  
The Elbe River ◽  
The One

Abstract The round goby, Neogobius melanostomus, is a Ponto-Caspian fish species currently found in many parts of Europe, including the North Sea riverine deltas. The objective of this study was to examine the parasite community of fish caught in the lower Elbe (Süderelbe – tidal zone; Geesthacht – non-tidal) in Germany and compare it with published data from the upper Elbe (Ústí nad Labem) in the Czech Republic. Twelve parasite taxa were recorded in the lower Elbe, six in the Süderelbe and nine near the city of Geesthacht. Süderelbe fish were mainly infected with Angullicola crassus larvae, while gobies from Geesthacht – with glochidia and sporadically occurring Pomporhynchus laevis, and the opposite situation was observed at Ústí nad Labem. It appears that a large tidal weir at Geesthacht significantly contributes to the division of the round goby population, with the Geesthacht parasite community being more similar to that at Ústí nad Labem than the one from the Süderelbe, thus increasing the likelihood that shipping from Hamburg was the introduction vector to Ústí nad Labem. We also recorded Acanthocephalus rhinensis in the Elbe for the first time, and in a new host – the round goby. Thus, round gobies may represent a new vector for the introduction of this parasite along the Elbe.

scholarly journals Interannual variation in the metazoan parasite communities of bigeye trevally Caranx sexfasciatus (Pisces, Carangidae)

Parasite ◽  
2020 ◽  
Vol 27 ◽  
pp. 6 ◽  
Author(s):  
Juan Violante-González ◽  
Scott Monks ◽  
Yesenia Gallegos-Navarro ◽  
Nataly G. Santos-Bustos ◽  
Princessa J. Villalba-Vasquez ◽  
...  
Keyword(s):  
Species Composition ◽  
Parasite Species ◽  
Single Species ◽  
Parasite Community ◽  
Component Community ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
Local Fluctuations ◽  
Low Diversity ◽  
Abiotic Environmental Factors

Parasite communities in Caranx sexfasciatus were characterized and analyzed to determine any interannual variations in structure and/or species composition. In total, 422 C. sexfasciatus were collected from Acapulco Bay, Mexico, between May 2016 and March 2019. Thirty-two taxa of metazoan parasites were identified: five Monogenea, thirteen Digenea, one Acanthocephala, one Cestoda, three Nematoda, seven Copepoda, and two Isopoda. Monogeneans were the most frequent and abundant parasite species in all sampling years. Parasite species richness at the component community level varied significantly from 8 (May 2016) to 25 (March 2019) and was similar to previous reports for other species of Carangidae. The component communities and infracommunities in C. sexfasciatus were characterized by low parasite species numbers, low diversity, and dominance of a single species (the monogenean Neomicrocotyle pacifica). Parasite community structure and species composition varied between sampling years and climatic seasons. Seasonal or local fluctuations in some biotic and abiotic environmental factors probably explain these variations.

scholarly journals The importance of non-forest tree stand features for protection of the Syrian Woodpecker Dendrocopos syriacus in agricultural landscape: a case study from South-Eastern Poland

2020 ◽  
Vol 94 (5) ◽  
pp. 1825-1835
Author(s):  
Jerzy Michalczuk
Keyword(s):  
Species Diversity ◽  
Agricultural Landscape ◽  
Habitat Preferences ◽  
Fruit Trees ◽  
Forest Tree ◽  
Health Condition ◽  
Agricultural Landscapes ◽  
South Eastern ◽  
Dendrocopos Syriacus

Abstract Non-forest tree stands are important habitats for many species of birds in the agricultural landscape. They are also the main habitat of the Syrian Woodpecker Dendrocopos syriacus, whose numbers have been decreasing in recent years in some parts of Europe. Recognition of the habitat requirements of this species may help better planning of its protection in the context of the treed agricultural landscapes. During this study, the habitat preferences of the Syrian Woodpecker were determined in the agricultural landscape of South-Eastern Poland. A set of 12 habitat parameters of tree stands located in the breeding territories of the Syrian Woodpecker (n = 122) and in randomly chosen control areas (n = 122) located outside the range of the breeding territories of this species were characterized. The number and species diversity of trees was significantly higher in stands located in Syrian Woodpecker territories than in the random control areas. Stands occupied by breeding pairs also had trees of worse health condition and a larger proportion of fruit trees. The model best explaining the probability of the occurrence of the species indicates that the Syrian Woodpecker requires mainly the presence of tree stands with a greater species diversity of trees, as well as tree stands in worse health condition. When planning the protection of this species’ habitats in the agricultural landscape, the characteristics of non-forest tree stands noted above should be taken into account.

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