Zoology Commons^™

Effects Of Gut Sediment Contents On Heavy Metal Levels In The Amphipod Corophium Volutator(Pallas), Levent Bat, Dave Raffaelli̇

Turkish Journal of Zoology

Concentrations of copper, zinc and cadmium were determined in Corophium volutator (with and without gut contents) exposed for 4 and 10 days to contaminated sediment. Significant differences were observed in metal concentrations among individuals, where gut contents were removed and those there they were left intact. On the other hand, the concentrations of these metals in Corophium were always high when no time was given for amphipods to depurate their guts. Therefore, it is recommended that either depuration in seawater or removal of the gut should be carried out before analysing amphipods for metal levels.

Experimental Infections Of Muskoxen (Ovibos Moschatus) And Domestic Sheep With Umingmakstrongylus Pallikuukensis (Nematoda: Protostrongylidae): Parasite Development, Population Structure, And Pathology, Susan J. Kutz, Eric P. Hoberg, Lydden Polley

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Three captive muskoxen (Ovibos moschatus) were successfully infected with third-stage larvae of Umingmakstrongylus pallikuukensis digested or emerged from the slugs Deroceras reticulatum and D. laeve, for the first time completing the life cycle of this parasite under experimental conditions. The course of parasite development and patency was followed for 26 months post infection (p.i.) using fecal examinations and radiography. The prepatent periods in two of the muskoxen were 91 and 95 days and the patent period in one extended for 23 months. Larval production peaked 13–14 months p.i. On postmortem of two of the muskoxen at months …

The Chondrocranium Of The Mexican Burrowing Toad, Rhinophrynus Dorsalis, Charles C. Swart, Rafael O. De Sá

Biology Faculty Publications

The chondrocranium of Rhinophrynus dorsalis is described and illustrated. Autapomorphies of R. dorsalis are the presence of the symplectic cartilage and a cartilaginous process on the ascending process of the palatoquadrate. Synapomorphies of Rhinophrynus shared with the Pipidae are: (1) early formation of the lower jaw and (2) presence of a suprarostral plate. Alternative developmental pathways for the formation of the suprarostral plate are considered. Histological data indicates that the suprarostral plate forms from: (1) the early fusion of the cornua trabeculae with the suprarostral cartilages, (2) an anterior growth of the ethmold plate, and (3) subsequent fusion …

Unidad De Los Anfibios Modernos Como Grupo Natural, Rafael O. De Sá

Biology Faculty Publications

RESUMEN

La monofilia de la infraclase Lissamphibia ha sido cuestionada. Algunos autores sugieren un origen independiente del Orden Gymnophiona basados en la condición compacta (= estegocrotafía) del cráneo de la cecilias. La presente revisión indica la irrelevancia del estegocrotafismo para establecer las relaciones filogenéticas del grupo. Los datos disponibles sugieren: 1) el estegocrotafismo es secundariamente derivado en cecilias, y 2) Lissamphibia representa un grupo monofilético.

SUMMARY

Unity of modern Amphibians as a natural group

The monophyly of Lissamphibia has been previously questioned. Some authors suggested an independent origin of Gymnophiona based on the solid condition (= stegokrotaphy) of the caecilian …

Fauna Of The Subfamily Ichneumoninae (Hymenoptera, Ichneumonidae) Of Azerbaijan With New Records, Azer Abulfaz Oghlu Aliyev

Turkish Journal of Zoology

This paper presents information about 103 species of the subfamily ichneumoninae. 10 species of them were included in the Azerbaijan fauna, 25 in the Caucasian fauna and 65 in the Transcaucasian fauna for the first time. They belong to 6 tribes and 36 genera. Their distribution, hosts and biotopes were noted.

The Taxonomy And Ecology Of Mauremys Caspica Rivulatavalenciennes, 1833 (Testudinata: Bataguridae) And Testudo Graeca Ibera Pallas, 1811 (Testudinata: Testudinidae) On Resadiye (Datça) Peninsula, Cemal Varol Tok

Turkish Journal of Zoology

In this survey, the tortoise and turtle fauna of Resadiye (Datça) Peninsula, which has not previously been studied in detail, is given. Mauremys caspica rivulata and Testudo graeca ibera specimens were collected as museum material or released after their measurements were taken, from four and nine localities respectively, establishing the status of the peninsula's testudine fauna. A total of 30 adult and eight juvenile specimens were studied morphologically. Observations on the ecological and biological characteristics of the testudines are also given.

Characterization And Structure-Function Studies Of Human Liver Flavin Monooxygenase Isozyme 3 (Fmo3), Orhan Adali, Richard M. Philpot

Turkish Journal of Zoology

The activity of the flaving-containing monooxygenase (FMO EC 1.14.13.8) can be modulated by a number of nitrogen-containing compounds in a manner that is both isoform and effector-dependent. We showed that the direction (activation or inbihiton) and extent of modulation can also be dependent on substrate concentration. The native human liver FMO3 and arg 433 mutant FMO3 catalyze the methimazole reaction with similar Km values. However, the mutant FMO3-catalyzed reaction was affected differently by high concentration of imipramine, imipramine causing inhibition of activity. Our results suggest that the response of FMO3 to imipramine involves a distribution of compounds between two sites …

Some Biological Aspects Of Penaeid Shrimps Inhabiting Yumurtalık Bight In İskenderun Bay (North-Eastern Mediterranean), Meti̇n Kumlu, Dursun Avşar, O. Tufan Eroldoğan, Nuri̇ Başusta

Turkish Journal of Zoology

The species composition, size frequency distribution and length/weight relationships for each sex, size at first sexual maturity, and spawning seasons of the commercially important shrimp species inhabiting Yumurtalik Bight of the Nort-eastern Mediterranean were studied. Two penaeid shrimp species, Penaeus semisulcatus and Metapenaeus stebbingi, dominated the catches. Only a few individuals of Metapenaeus monoceros were captured during the study. The minimum size at first maturity was estimated to be 130 mm total length (TL) for P. semisulcatus and 55-60 mm TL for M. stebbingi. The size at which 50% of the population is mature is 36 mm carapace length (CL) …

Gonadal Maturation And Spawning Of Penaeus Semisulcatus(Penaeidae: Decapoda), Mevlüt Aktaş, Meti̇n Kumlu

Turkish Journal of Zoology

The effects of eyestalk ablation on maturation, moulting and spawning in Penaeus semisulcatus were investigated in this study. Twelve males and 12 eyestalk-ablated and 12 non-ablated, all individually marked females were stocked into a 12-ton maturation tank. All the ablated females moulted in 9.08±1.68 days and first spawning occurred 16.75±3.41 days following eyestalk ablation. While all the ablated females spawned, producing an average of 177.000 ±133.340 eggs, only three non-ablated females spawned, producing average of 23.216±16.957 eggs during a period of 45 days (P0.05). Average nauplii production per female was 81.574±55.126 for ablated and 13.397±11.535 for non-ablated ones (P

Two New Sex Determining Factors ( M V , F D ) In Housefly, (Musca Domestica) Populations In Turkey, Şükran Çakir

Turkish Journal of Zoology

In most strains of the common housefly, Musca domestica, sex is genetically determined by the presence or absence of a Y chromosome with a dominant male determining factor, M. Standard trains have an XX-XY mechanism. In certain laboratory and natural populations, however, neither females nor males have the Y chromosome. These non-standard populations have autosomal mechanisms for sex determination. In the present study, the existence of two new autosomal sex determining factors, M V and F D , in housefly populations in Turkey was determined.

Competition Between Strains With Autosomal And Standardsex-Determining Mechanisms In The Housefly (Muscidae), Şükran Çakir, Aykut Kence

Turkish Journal of Zoology

Experimental cages started with a mixture of flies at three different ratios (1:9, 5:5, 9:1) from populations having heterosomal and autosomal sex-determining mechanisms were cytogenetically examined over six generations at two different temperatures (25 °C and 35 °C). In general, there was an increase in the frequency of XX males in all competitive population cages. Abnormal testes and intersex appearance, frequent X chromosome aneuploidies and deviation from a 1:1 sex ratio were observed.

Seasonal Variation Of Pseudophyllidean Cestode, Diphyllobothriumspp. Infection In Cyclops Strenuus Abyssorum (Copepoda) In Loch Lomond, Mustafa Dörücü

Turkish Journal of Zoology

The seasonal variation in natural levels of infection with procercoids of pseudophyllidean cestodes, Diphyllobothrium spp, and the abundance of Cyclops strenuus abyssorum (Copepoda) were studied in Loch Lomond, Scotland, From March 1993, to February 1994. The prevalence of infected copepods was found to increase with the temperature of the water, a peak occurring in June, while relatively low levels were recorded between December and March. The population density of C. strenuus abyssorum also exhibited seasonal variation, being higher during the warmer months. Water temperature in Loch Lomond, near Rowardennan, ranged from 3.2 to 16°C. The lowest water temperature was recorded …

The Efficiency Of The Swedish Trappy In Catching Freshwater Crayfish Pacifastacus Leniusculus And Astacus Leptodactylus, Muzaffer Mustafa Harlioğlu

Turkish Journal of Zoology

The efficiency of the Swedish trappy in catching Pacifastacus leniusculus and Astacus leptodactylus was studied. The results showed that the Swedish trappy was very effective at catching both P. leniusculus and A. leptodactylus.In the concrete tank study, 71.6% of the total crayfish in the A. leptodactylus tanks and 60% of the total crayfish in the P. leniusculus tanks had been caught with baited traps at the end of the experiment. On the other hand, it was found that there was considerable movement of crayfish in and out of the traps, and consequently a decline in the number of crayfish in …

Determination Of The Growth Parameters Of The Anadara Cornear. 1844 Population By The Bhattacharya Method In The Eastern Black Sea, Cemaletti̇n Şahi̇n, Ertuğ Düzgüneş, Cengi̇z Mutlu, Mehmet Aydin, Hacer Emi̇ral

Turkish Journal of Zoology

Anadara corneais going to be one of the target species of the dredging fishery along the continental shelf of the Turkish Black Sea coast. Although it has not been exploited yet, studies on the distribution, growth and meat quality have been carried out. In this study, growth parameters were estimated after determining the cohorts by the "Bhattacharya" method. Four year classes were distinguished and using the corresponding lengths of these, von Bertalanffy growth parameters and the length - weight relationship were found to be L ° =75.24 mm, K= 0.370 and t o = -0.103 and W= 0.0015L 2.619 , …

The Effect Of The Ecology Of Toads On The Distribution Of Helminths, Emilia V. Vashetko, Bakhodir H. Siddikov

Turkish Journal of Zoology

This paper presents the results of studies on the helminth fauna of the green toad, Bufo viridis, in Uzbekistan. Twently helminth species were identified. The highest diversity of helminths was recorded in toads in the newly-built districts of Tashkent (1966-76). The helminth fauna of the toads inhabiting foothills was less common.

Erythrocyte Sizes Of Some Anurans From Turkey, Mehmet Kutsay Atatür, Hüseyi̇n Arikan, İ. Ethem Çevi̇k

Turkish Journal of Zoology

The erythrocyte sizes of some anurans from Turkey (Rana ridibunda, Bufo bufo, Bufo viridis, Pelobates syriacus, Bombina bombina, Hyla arborea) were established utilizing blood smears stained with Wright's stain. The largest erythrocytes were found in R. ridibunda, the widest in B. bombina and the smallest in P. syriacus.

Liocarcinus Depurator (Linnaeus, 1758) And Brachynotussexdentatus(Risso, 1827) (Decapoda, Brachyura), Two New Records For The Turkish Black Sea Fauna, A. Suat Ateş

Turkish Journal of Zoology

The present study is on 2 Brachyura species, collected by a scuba diver during investigations on the decapod fauna of the Sinop Peninsula shores of the Western Black Sea region, Turkey, between June, 1995, and July, 1996. Liocarcinus depurator (Linnaeus, 1758) and Brachynotus sexdentatus (Risso, 1827), which was found in the study area, has not been reported previously from Turkish Black Sea coastal waters.

A Study On Mustela Nivalis Linnaeus, 1766 (Mammalia: Carnivora) In Turkey, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Mustafa Sözen, Şaki̇r Özkurt

Turkish Journal of Zoology

In this study, five specimens of Mustela nivalis collected from five localities in Turkey were examined based on karyological, morphological, bacular and some ecological aspects. The karyotype of M. nivalis has 2n=42, NFa=72 and FN=76. The baculum seems to be similar to that of specimens of M. nivalis dinniki from Erivan (Armenia).

Checklist Of Tabanidae (Diptera) From Turkey, Ali̇ Yavuz Kiliç

Turkish Journal of Zoology

After a review of the literature on the Tabanidae fauna of Turkey, it was found that 156 species and 12 subspecies have been reported. Twelve of the species are from the subfamily Pangoninae, 19 species and 2 subspecies are from the subfamiy Chrysopsinae and 125 species and 10 subspecies are from the subfamily Tabaninae.

The Taxonomic Status Of Triturus Vulgaris(Linnaeus, 1758) Populations In Western Anatolia, Turkey, Kurtuluş Olgun, İbrahi̇m Baran, Cemal Varol Tok

Turkish Journal of Zoology

A total of 179 (97 males, 82 females) Triturus vulgaris specimens collected during the breeding season from Western Anatolia (Efes, Ayvacık, Lapseki, Karacabey, Gemlik) and European Turkey (Bolayır) was examined. The morphological and the statistical evaluations showed that the Western Anatolian (except Efes) and the Thrace populations are similar. The West Anatolian populations, therefore, should be included in the nominate subspecies, T.v. vulgaris. The Efes specimens were found to be different from specimens of Ayvacik, Lapseki and Gemlik especially in terms of body measurements. The explanation of the taxonomic status of the Efes population will be possible with the material …

A Study On Vormela Peregusna Guldenstaedt, 1770 (Mammalia: Carnivora) In Turkey, Şaki̇r Özkurt, Mustafa Sözen, Nuri̇ Yi̇ği̇t, Ercüment Çolak

Turkish Journal of Zoology

Karyological and morphological characteristics of a female Vormela peregusna captured from Gönen (Balıkesir) were examined. The diploid number of chromosomes (2n) 38, fundamental number (FN) 72, and the number of autosomal arms (NFa) 68. The X chromosome is medium-sized submetacentric. The morphological and karyological evaluations showed that Turkish peregusna is similar to Vormela peregusna syriacus from Syria.

Age Variations In Microtus Guentheri Danford And Alston, 1880 (Mammalia: Rodentia) In Turkey, Mustafa Sözen, Ercüment Çolak, Nuri̇ Yi̇ği̇t, Şaki̇r Özkurt

Turkish Journal of Zoology

The skull, teeth, phallus and bacula of Microtus guentheri specimens raised in the laboratory were investigated at different stages of postnatal development. The most of the cranial measurements attained those of adults on day 60. There were determined to be some morphological differences between the skulls of young and adult voles. The incisors and the molars began to erupt at 3 and 6 days, respectively. It was shown that there was no difference in respect to the phallic and bacular morphology between young and adults except for size. The proximal bacula became larger during the period between juvenile life and …

Effects Of A Snake Venom And Some Hypometabolic Agents On The Substandard Gas-Oxygen Metabolism In Mice, Sh. I. Allamuratov, R. N. Ahmerov, K. T. Almatov, I. K. Kazakov

Turkish Journal of Zoology

A lethal dose of the snake Vipera lebetina venom decreases the standard gas-oxygen metabolism of mice approximately threefold while its nonlethal dose does so twofold. The same effects on the gas-oxygen metabolism of mice were noted for lethal and nonlethal doses of aminooxyacetate (blocker of aminotransferases), catacin (antihypoxant), halothane (anesthetic agent) and serotonin (hypometabolic agent). It is concluded that the organism's physiologically reversible substandard metabolic (or vital hypometabolic) limit induced by different intoxications is approximately two times as low, and the irreversible substandard metabolic (or lethal hypometabolic) limit is three times as low as the level of the standard metabolism.

Some Ultrastructural Observations On Cellular Interaction Between Trophectoderm And Uterine Epithelium During Preimplantation In Rat, Ramazan Demi̇r, İsmai̇l Üstünel, Necdet Demi̇r

Turkish Journal of Zoology

The blastocystic trophoblast cells consist of different types of cells according to their structural architecture and their functional specialisation: a) supporting, preventing and feeding functions; b) signalization, polarisation, and depolarisation functions between blastocyst and uterine; c) immunological acceptance or rejection and secreting functions. The aim of this study was to investigate the ultrastructure of cellular interaction between mural trophoblast/trophectoderm cells of blastocyst and uterine epithelium in rat. Tissue samples obtained from rats on day 5 of pregnancy were studied ultarstructurally. In contrast to the polar trophoblast cells exhibiting degeneration according to implantataion progress, some mural trophoblast cells play an important …

The Effects Of Methionine Supplementation To Soybean Meal (Sbm)-Based Diets On The Growth And Whole Body-Carcass Chemical Composition Of Tilapia (T. Zillii), Abdurrahman Polat

Turkish Journal of Zoology

The effects of supplementing soybean meal-based diets with methionine on the growth and carcass-whole body chemical composition of T. zillii were studied during a 62-day feeding trial. A control diet prepared for T. zillii was supplemented with five different levels of free methionine, 0.5%, 1%, 1.5%, 2% and 2.5% (the same amounts of ?-cellulose were removed). At the end of the study, the best growth rate and FCR were determined in the group fed a diet supplemented with 0.5% methionine (total 1.38% methionine+cystine). Statistically significant effects of methionine supplementation on whole body protein content were determined (p

Investigation Of The Selectivity Of Multifilament And Monofilament Gill Nets On Pike Perch (Stizostedion Lucioperca (L., 1758)) Fishing In Lake Beyşehir, İsmet Balik

Turkish Journal of Zoology

In this study, carried out in Lake Beyşehir, the selectivity of multifilament and monofilament gill nets used for pike perch fishing were investigated. Multifilament gill nets with 5 differenet mesh sizes and monofilament gill nets with 6 different mesh sizes were used during experimental fishing from October 1994 ve May 1996. According to the results, the common selection factor of multifilament gill nets was calculated to be 4.67 and 4.70 for monofilament gill nets.

Investigation Of The Selectivity Of Monofilament Gill Nets Used In Carp Fishing (Cyprinus Carpio L., 1758) In Lake Beyşehir, İsmet Balik

Turkish Journal of Zoology

In this study, the selectivity of monofilament gill nets used for fishing carp in Lake Beyşehir was studied. Monofilament gill nets with mesh sizes of 7, 8, 13 and 14 cm were used in experimental fishing between October 1994 and May 1996. From the results, the common selection factor of monofilament gill nets was calculated as 2.922.

The Feeding Features Of The Pike-Perch (Stizostedion Lucioperca) Population In Lake Beyşehir, İsmet Balik

Turkish Journal of Zoology

The stomach contents of pike-perch (Stizostedion lucioperca) in Lake Beyşehir were investigated. The stomachs of 474 pike-perch were studied between March 1995 and February 1996. 76.6% of specimens had full and 23.4% had empty stomachs. The contents of the stomachs consisted of Gammarus sp. (77.5%), Mysis sp. (14.7%), Chirinomidae (4.3%), pike-perch (2.7%) and others (0.8%). Around 20.9% cannibalism was estimated and it was widespread among individuals with a length of 11-60 cm. In addition, it appears that pike-perch can consume fellow specimens with a mean size of 35.9% of its length.

The Black Sea Zooplankton: Composition, Spatial/Temporal Distribution And History Of Investigations, A. V. Kovalev, V. A. Skryabin, Yu. A. Zagorodnyaya, Feri̇t Bi̇ngel, Ahmet Erkan Kideyş, U. Ni̇ermann, Z. Uysal

Turkish Journal of Zoology

Investigations into the composition, spatial and temporal distribution of the Black Sea zooplankton were reviewed in context with its historical development. The review comprises the main zooplankton studies published by the riparian countries of the Black Sea beginning with the earliest faunistic publications in the 1860s and 1870s up to the recent multinational ecosystem investigations carried out within the framework of the NATO-TU-Black Sea Project. The reviewed material covers a wide subject range of zooplankton investigations from descriptive studies to distribution and the production mechanisms in the ecosystem. The main findings of recently performed large scale investigations into the horizontal …

A Taxonomical Study On The Rotifer Fauna Of Akşehir Lake, Ahmet Altindağ, Si̇bel Yi̇ği̇t

Turkish Journal of Zoology

In this study the Rotifera fauna of Akşehir lake was studied taxonomically between June 1992 - November 1993. Thirty - two rotifer species and 2 genus belonging to Rotifera phylum have been identified.