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2007

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Articles 61 - 90 of 168

Full-Text Articles in Zoology

On New Populations Of Rana Holtzi And Rana Macrocnemis (Ranidae: Anura), İbrahi̇m Baran, Çeti̇n Ilgaz, Yusuf Kumlutaş, Kurtuluş Olgun, Azi̇z Avci, Fatma İret Jan 2007

On New Populations Of Rana Holtzi And Rana Macrocnemis (Ranidae: Anura), İbrahi̇m Baran, Çeti̇n Ilgaz, Yusuf Kumlutaş, Kurtuluş Olgun, Azi̇z Avci, Fatma İret

Turkish Journal of Zoology

Rana holtzi, which is only known from Karagöl at altitude 2500 m and Çinigöl at altitude 2600 m, was determined from Eğrigöl for the first time at altitude 3000 m. Thus, the distribution range of R. holtzi in the Bolkar Mountains was extended. In addition, specimens of Rana macrocnemis were recorded from Seviçova (2500 m a.s.l.), located in the Bolkar Mountains near Ereğli (Konya), for the first time. Furthermore, the village of Örtülü (Maden, Elazığ), where specimens of Rana macrocnemis were captured, is determined to be southernmost distribution point of R. macrocnemis. Mountain frog specimens captured from new localities were …

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Contributions To The Knowledge Of The Oligochaeta (Annelida) Fauna Of Some Lakes In The Taurus Mountain Range (Turkey), Seray Yildiz, M. Ruşen Ustaoğlu, Süleyman Balik Jan 2007

Contributions To The Knowledge Of The Oligochaeta (Annelida) Fauna Of Some Lakes In The Taurus Mountain Range (Turkey), Seray Yildiz, M. Ruşen Ustaoğlu, Süleyman Balik

Turkish Journal of Zoology

Two expeditions were carried out during July 1996 and July 1997 in order to determine the Oligochaeta fauna of 16 high altitude lakes located in the Taurus Mountains in south-west Anatolia (Turkey). No previous faunistic studies exist from the Taurus Mountains regarding physico-chemical features and Oligochaeta fauna. Fifteen species were identified, comprised of the families Tubificidae (11 species), Naididae (3 species), and Lumbriculidae (1 species). Among the samples, Tubificidae were the most dominant (73% of the specimens), followed by Naididae (20%) and Lumbriculidae (7%).

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Population Size Of The Marsh Frog (Rana Ridibunda Pallas, 1771) In Lake Yayla (Denizli, Turkey), Di̇nçer Ayaz, Cemal Varol Tok, Ahmet Mermer, Murat Tosunoğlu, Murat Afsar, Keri̇m Çi̇çek Jan 2007

Population Size Of The Marsh Frog (Rana Ridibunda Pallas, 1771) In Lake Yayla (Denizli, Turkey), Di̇nçer Ayaz, Cemal Varol Tok, Ahmet Mermer, Murat Tosunoğlu, Murat Afsar, Keri̇m Çi̇çek

Turkish Journal of Zoology

The population size of marsh frogs (Rana ridibunda) was estimated using the mark-recapture method in Lake Yayla (Buldan, Denizli, Turkey). According to the results, the mean estimated population was 14,733 and the sex ratio was female biased (male: female, 0.56). The main limiting factors of the marsh frog population are also outlined.

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Efficacy Of The Rodenticide Bromethalin In The Control Of Microtus Arvalis And Nesokia Indica In Alfalfa Fields, Alireza Khalilaria, Mohsen Morovati, Mehdi Naseri Jan 2007

Efficacy Of The Rodenticide Bromethalin In The Control Of Microtus Arvalis And Nesokia Indica In Alfalfa Fields, Alireza Khalilaria, Mohsen Morovati, Mehdi Naseri

Turkish Journal of Zoology

Rodents cause huge losses to agricultural crops annually. During outbreaks, this pest can cause irreversibly high damage. Solely non-chemical control measures have not been successful in reducing the population of this pest; therefore, the use of chemical rodenticides, especially on crops like alfalfa, is unavoidable. Bromethalin is a neurotoxic, acute, single-dose rodenticide with high efficacy, and since it is mostly used in wax formulation it is not attractive to non-target organisms, and hence is not very dangerous. Bromethalin 0.01% was tested in alfalfa fields of west Azerbaijan, Tehran, and Kerman provinces in completely randomised treatment blocks with 4 treatments (bromethalin …

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Food Utilisation In A Laboratory Colony Of The Giant African Land Snail, Archachatina Marginata (Swainson) (Pulmonata: Achatinidae), Rosemary I. Egonmwan Jan 2007

Food Utilisation In A Laboratory Colony Of The Giant African Land Snail, Archachatina Marginata (Swainson) (Pulmonata: Achatinidae), Rosemary I. Egonmwan

Turkish Journal of Zoology

This study investigates food consumption by juveniles and adults of the edible giant land snail Archachatina marginata under laboratory conditions. In one experiment, the snails were fed weekly from hatching for 13 months with weighed amounts of lettuce (Lactuca sativa), carrot (Daucus carota), potato (Solanum tuberosum), apple (Malus pumila), and calcium. Another group of 2-month-old A. marginata ovum was fed singly for 3 days on each of the test food items. The results show that, when given a choice, A. marginata can select from the 4 types of food and calcium. When given no choice, lettuce provided high digestibility and …

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Limnolegeria Longiseta Motaş, 1928 And Sperchon Rostratus Lundblad, 1969: Two Water Mite Species (Acari, Hydrachnidia) From Turkey, Yunus Ömer Boyaci Jan 2007

Limnolegeria Longiseta Motaş, 1928 And Sperchon Rostratus Lundblad, 1969: Two Water Mite Species (Acari, Hydrachnidia) From Turkey, Yunus Ömer Boyaci

Turkish Journal of Zoology

Two water mite species (Acari, Hydrachnidia) are reported from Turkey. Limnolegeria longiseta Motaş, 1928 and males of Sperchon rostratus Lundblad, 1969 are first records for the Turkish fauna. The morphological features and worldwide distribution of the species are given.

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Notes On The Nesting And Breeding Of Delichon Urbica (Linnaeus, 1758) (Aves: Passeriformes) Near Köprüköy (Kızılırmak, Turkey), Fulya Saygili, Nuri̇ Yi̇ği̇t Jan 2007

Notes On The Nesting And Breeding Of Delichon Urbica (Linnaeus, 1758) (Aves: Passeriformes) Near Köprüköy (Kızılırmak, Turkey), Fulya Saygili, Nuri̇ Yi̇ği̇t

Turkish Journal of Zoology

The migration and some bio-ecological characteristics of a house martin (Delichon urbica) population, which has established colonies under bridges over the Kızılırmak River near Köprüköy village (Kırıkkale), were investigated in 2003 and 2004. These house martins were observed from the beginning of April to the first week of September, when they migrated south. According to the specimens examined, mean measurements of total length, wingspan, and weight were recorded as 133.5 mm, 279.5 mm, and 15.5 g, respectively. Mean measurements and weights of the nests were 12.5 mm long x 9 mm wide x 6 mm high, and 425 g. The …

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Reproductive Biology And Postnatal Development Of Microtus Rossiaemeridionalis Ognev, 1924 (Mammalia: Rodentia) Distributed In Turkey, Nuri̇ Yi̇ği̇t, Tolga Kankiliç, Ercüment Çolak Jan 2007

Reproductive Biology And Postnatal Development Of Microtus Rossiaemeridionalis Ognev, 1924 (Mammalia: Rodentia) Distributed In Turkey, Nuri̇ Yi̇ği̇t, Tolga Kankiliç, Ercüment Çolak

Turkish Journal of Zoology

The reproductive biology and postnatal development of Microtus rossiaemeridionalis were investigated based on field and laboratory observations. This vole preferred humid meadows, and its burrow was complex with several entrances. The breeding season of this species was between December and October, and lasted 11 months. Pregnancy lasted 20-21 days, and average litter size was 5. The first mating was observed in a captive female at an age of 35 days, and other females subsequently mated at 40, 42, 60, and 70 days. Young were weaned at 17 days. The growth rate of weight was 0.45 g/day between birth and day …

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Some Ghost Crabs Of The Genus Ocypode (Decapoda: Brachyura: Ocypodidae) From Pakistan´S Waters (Northern Arabian Sea), Farzana Yousuf, Farah Ali, Quddusi Bashir Kazmi Jan 2007

Some Ghost Crabs Of The Genus Ocypode (Decapoda: Brachyura: Ocypodidae) From Pakistan´S Waters (Northern Arabian Sea), Farzana Yousuf, Farah Ali, Quddusi Bashir Kazmi

Turkish Journal of Zoology

The present paper is based on the ghost crabs Ocypode ceratophthalma, O. gaudichaudii, O. macleayana, and O. rotundata, belonging to the Brachyuran genus Ocypode. The specimens were collected from the sandy beach of Sonmiani on the Makran coast. Four species belonging to 1 genus are described in detail and illustrated.

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Pseudophoxinus Alii (Teleostei: Cyprinidae), A New Fish Species From The Antalya Region, Turkey, Fahretti̇n Küçük Jan 2007

Pseudophoxinus Alii (Teleostei: Cyprinidae), A New Fish Species From The Antalya Region, Turkey, Fahretti̇n Küçük

Turkish Journal of Zoology

Pseudophoxinus alii is a new species described from 3 water bodies (Aksu River, and Ilıca and Kömürcüler streams) in the Antalya region, Turkey. This new species is distinguished from other large-scaled species of Pseudophoxinus in having 41-44 scales in lateral series, commonly 14 predorsal vertebrae, and large eye diameter (26%-32% HL).

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Distribution Pattern And Morphological Differences Between The Sexes Of River Blenny, Salaria Fluviatilis (Asso, 1801), In The Ceyhan River Basin, Turkey, Ahmet Alp, Cemi̇l Kara Jan 2007

Distribution Pattern And Morphological Differences Between The Sexes Of River Blenny, Salaria Fluviatilis (Asso, 1801), In The Ceyhan River Basin, Turkey, Ahmet Alp, Cemi̇l Kara

Turkish Journal of Zoology

The distribution of the river blenny (Salaria fluviatilis) in the Ceyhan River basin and the morphological differences between the sexes were investigated. Occurrence of the river blenny in the Ceyhan River basin depended on altitude of the habitats, and specimens were obtained at altitudes < 750 m. Samples were strongly female biased, which may have been due to the egg-guarding behavior of the males. There was also sexual dimorphism in that male blennies were larger than females (P < 0.05); however, there were no differences in the meristic counts between the sexes (P > 0.05). Analysis of variance showed that all of the standardized morphometric measurements were significantly different among the samples. In discriminant function analysis, morphological differentiation was determined between the sexes. Plotting discriminant function 1 to 2 separated the sexes from each other. Proportions of correctly classified individuals into their original groups were 71.9% for juveniles, 79.0% for …

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Seasonal Fluctuations In The Zooplankton Composition Of A Eutrophic Lake: Lake Marmara (Manisa, Turkey), Şükran Yildiz, Ahmet Altindağ, Mehmet Borga Ergönül Jan 2007

Seasonal Fluctuations In The Zooplankton Composition Of A Eutrophic Lake: Lake Marmara (Manisa, Turkey), Şükran Yildiz, Ahmet Altindağ, Mehmet Borga Ergönül

Turkish Journal of Zoology

Seasonal fluctuations in the zooplankton fauna of Lake Marmara were studied between spring 2001 and winter 2002. In all, 41 species, consisting of 29 Rotifera (81.99%), 8 Cladocera (12.88%), and 4 Copepoda (5.13%), were recorded. The dominant species in the lake were Keratella tecta (Rotifera), Bosmina longirostris (Cladocera), and Eucyclops serrulatus (Copepoda). According to the QBrachionus/Trichocerca index (6.08) used for the determination of trophic level, the lake was hypertrophic.

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Toxic, Residual, And Teratomorphic Effect Of A Neem Extract (N-9) In Comparison To Coopex 25 Wp (Permethrin + Bioallethrin) Against Musca Domestica L. (Holland Strain), Syed Naim-Ul-Hasan Naqvi, Rahila Tabassum, Muhammad Farhanullah Khan, Nikhat Yasmin, S. M. Nurulain, A. A. Burney Jan 2007

Toxic, Residual, And Teratomorphic Effect Of A Neem Extract (N-9) In Comparison To Coopex 25 Wp (Permethrin + Bioallethrin) Against Musca Domestica L. (Holland Strain), Syed Naim-Ul-Hasan Naqvi, Rahila Tabassum, Muhammad Farhanullah Khan, Nikhat Yasmin, S. M. Nurulain, A. A. Burney

Turkish Journal of Zoology

The toxicity and residual effect of a topically applied crude extract of neem (N-9) and a pyrethroid (Coopex) against second-instar larvae of Musca domestica L. (Holland strain) was studied and compared. Toxic and residual studies revealed that Coopex (permethrin + bioallethrin) was more toxic and persistent than N-9. LD_{50} of Coopex 25 W.P. and N-9 was found to be 0.8 and 5.6 µg/larva, respectively; however, deformed pupae and partial emergence of adult flies were observed when only N-9 was applied.

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Quantitative Estimation Of Residues Of Neem Compounds (Nfc And Nc) And Dimilin (Igr) In Treated Callosobruchus Analis F. And Contact Media (Filter Paper And Glass) By Hplc, Rahila Tabassum, Syed Naim-Ul-Hasan Naqvi, Muhammad Farhanullah Khan Jan 2007

Quantitative Estimation Of Residues Of Neem Compounds (Nfc And Nc) And Dimilin (Igr) In Treated Callosobruchus Analis F. And Contact Media (Filter Paper And Glass) By Hplc, Rahila Tabassum, Syed Naim-Ul-Hasan Naqvi, Muhammad Farhanullah Khan

Turkish Journal of Zoology

Employing high performance liquid chromatography, quantitative estimation of neem compounds, NfC and NC, was carried out in treated insects, Callosobruchus analis, and in contact media, in comparison with an IGR, Diflubenzuron (Dimilin). Adult specimens of Callosobruchus analis were treated with impregnated filter paper mimicking an absorbent surface and treated glass mimicking a non-absorbent surface of grain storing containers. In the case of filter paper impregnation, the recovery of NfC was 4.57 µg/10 µl and 1.28 µg/10 µl in treated insect samples, and 0.71 µg/10 µl and 0.50 µg/10 µl in treated filter paper samples after 24 and 144 h of …

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Distribution Of The Gekkonidae Species In Southeast Anatolia, Turkey, And New Localities, İsmai̇l Hakki Uğurtaş, Hi̇kmet Sami̇ Yildirimhan, Murat Sevi̇nç Jan 2007

Distribution Of The Gekkonidae Species In Southeast Anatolia, Turkey, And New Localities, İsmai̇l Hakki Uğurtaş, Hi̇kmet Sami̇ Yildirimhan, Murat Sevi̇nç

Turkish Journal of Zoology

The distribution of Gekkonidae in southeast Anatolia was examined. Specimens were caught during field excursions between 2000 and 2002. The localities of the samples are marked on the provided maps and the distribution of the species is explained. Some habitat and ecological features are also given. Hemidactylus turcicus (Linnaeus, 1758) was recorded for the first time in Şanlıurfa and its distribution extended towards eastern Turkey. In addition, we added new localities to the distribution range of Cyrtopodion scaber (Heyden, 1827), which was previously only known from Şanlıurfa.

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Free-Living Ciliates Of The Anzali Wetland Of The Caspian Sea, Esmira Asadullayeva, Ilham Alekperov Jan 2007

Free-Living Ciliates Of The Anzali Wetland Of The Caspian Sea, Esmira Asadullayeva, Ilham Alekperov

Turkish Journal of Zoology

In this paper 8 ciliate species are described and figured. All these species were found in the Anzali Wetland of the Caspian Sea (Islamic Republic of Iran). The descriptions are based on the observations of living specimens and the analysis of slides impregnated with silver.

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Adding To The Reproductive Biology Of The Parthenogenetic Oribatid Mite, Archegozetes Longisetosus (Acari, Oribatida, Trhypochthoniidae), Michael Heethoff, Michael Laumann, Paavo Bergmann Jan 2007

Adding To The Reproductive Biology Of The Parthenogenetic Oribatid Mite, Archegozetes Longisetosus (Acari, Oribatida, Trhypochthoniidae), Michael Heethoff, Michael Laumann, Paavo Bergmann

Turkish Journal of Zoology

The oribatid mite, Archegozetes longisetosus, serves as a chelicerate model organism due to its relatively short life cycle and ease of laboratory culturing. It is a parthenogenetic species and all cultures recently used in different laboratories are descendants of a single female collected in 1993. While aspects of its developmental and functional biology have been published, knowledge of its reproductive rate and reproductive system is meager, and data on its life history are contradictory. Herein, we present the gross morphology of the reproductive system as obtained by SEM techniques and X-ray synchrotron microtomography, a new tool for studying mite anatomy. …

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Biometrical Study Of Artemia Urmiana (Anostraca: Artemiidae) Cysts Harvested From Lake Urmia (West Azerbaijan, Iran), Alireza Asem, Nasrullah Rastegar-Pouyani, Naser Agh Jan 2007

Biometrical Study Of Artemia Urmiana (Anostraca: Artemiidae) Cysts Harvested From Lake Urmia (West Azerbaijan, Iran), Alireza Asem, Nasrullah Rastegar-Pouyani, Naser Agh

Turkish Journal of Zoology

Artemia urmiana was reported from Lake Urmia by Günther in 1899. The objectives of the present study were to investigate the diameter of untreated and decapsulated cysts and chorion thickness at 26 stations in Lake Urmia. One-way ANOVA (Tukey test, P < 0.05) was used for analyzing the data. Only 31 pair means of untreated cysts among 26 stations showed significant differences, but, on the other hand, 157 pair means of decapsulated cysts among stations showed significant differences. There was a high variation in cyst diameter among the different localities in Lake Urmia. It was shown that this lake consists of recognizable sections producing cysts with different hatching characteristics, which can be used for diverse aquacultural purposes.

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A Survey On The Brachyura (Crustacea, Decapoda) In The Dardanelles, E. Şanver Çeli̇k, A. Suat Ateş, Mehmet Akbulut Jan 2007

A Survey On The Brachyura (Crustacea, Decapoda) In The Dardanelles, E. Şanver Çeli̇k, A. Suat Ateş, Mehmet Akbulut

Turkish Journal of Zoology

This study is on the Decapoda Brachyura found in the Dardanelles, included in the Turkish Straits system. Samples of Brachyura were collected at different depths (0-40 m) at 5 stations chosen in the Dardanelles, using a set fishing net and scuba divers during 1998-1999. A total of 19 species belonging to the Brachyura was identified, and 12 of these are new records for the Dardanelles. However, Parthenope angulifrons Latreille, 1825 is reported from the Turkish Straits system for the first time.

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Interference Competition Between Rails And Crakes (Rallidae) During Foraging In The Post-Breeding Season, Michal Ciach Jan 2007

Interference Competition Between Rails And Crakes (Rallidae) During Foraging In The Post-Breeding Season, Michal Ciach

Turkish Journal of Zoology

In an old riverbed of the Tigris River near the city of Diyarbakir (SE Turkey), observations of foraging Rallidae were made in October 2004. Reciprocal reactions (aggression, mutual foraging) were noted between birds. A total of 20 cases of aggression were observed. The most frequent aggressor was the Water Rail. In an interaction between 2 Spotted Crakes, size difference between the birds was obvious. Three cases of collective foraging were seen: 2 Spotted Crakes, Spotted and Baillon´s Crakes, as well as Little and Baillon´s Crakes. Instances of Crakes and also Moorhens foraging at distances of 3-4 m from each other …

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Structure And Reproductive Characteristics Of Two Brown Trout (Salmo Trutta) Populations In The Çoruh River Basin, North-Eastern Anatolia, Turkey, Murat Arslan, N. Mevlüt Aras Jan 2007

Structure And Reproductive Characteristics Of Two Brown Trout (Salmo Trutta) Populations In The Çoruh River Basin, North-Eastern Anatolia, Turkey, Murat Arslan, N. Mevlüt Aras

Turkish Journal of Zoology

The reproductive characteristics of 2 brown trout (Salmo trutta) populations were examined in 2 tributaries, the Anuri and Cenker streams, of the Çoruh River, north-eastern Turkey. Sampling was carried out by electrofishing monthly from November 2000 to October 2002. Age varied from 0 to 6 in the Anuri Stream, and from 0 to 7 in the Cenker Stream. Fork length (L) ranges were 4.29-29.9 cm and 3.7-34.4 cm for the Anuri and Cenker streams, respectively. The majority of individuals from both populations were smaller than 20 cm. While age and length at first maturity in males and females were 1.99 …

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Some Reproduction Characteristics Of Chalcalburnus Mossulensis (Heckel, 1843) Inhabiting The Karasu River (Erzurum, Turkey), Ayhan Yildirim, Hali̇l İbrahi̇m Hali̇loğlu, Orhan Erdoğan, Mustafa Türkmen Jan 2007

Some Reproduction Characteristics Of Chalcalburnus Mossulensis (Heckel, 1843) Inhabiting The Karasu River (Erzurum, Turkey), Ayhan Yildirim, Hali̇l İbrahi̇m Hali̇loğlu, Orhan Erdoğan, Mustafa Türkmen

Turkish Journal of Zoology

Some reproduction characteristics of Chalcalburnus mossulensis from the Aşkale region of the Karasu River, including sex ratio, spawning season, first maturity, and fecundity, were investigated between November 1995 and October 1997. The male to female ratio was 1:1.08, which was not significantly different from 1:1. Fecundity ranged from 3012 to 11,417 ova per female. There were significant correlations between fecundity, and fork length, total weight, age, and gonad weight. The length and age at first maturity for the males and females were 1.26 years and 9.24 cm, and 1.81 years and 9.65 cm, respectively. The spawning period was from June …

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Local Population Size And Dynamics Of The Color Polymorphic Bush Cricket, Isophya Rizeensis Sevgili, 2003 (Orthoptera: Tettigoniidae) Within The Fırtına Valley, İsmai̇l Kudret Sağlam, Seli̇m Süalp Çağlar Jan 2007

Local Population Size And Dynamics Of The Color Polymorphic Bush Cricket, Isophya Rizeensis Sevgili, 2003 (Orthoptera: Tettigoniidae) Within The Fırtına Valley, İsmai̇l Kudret Sağlam, Seli̇m Süalp Çağlar

Turkish Journal of Zoology

Isophya rizeensis Sevgili, 2003 (Orthoptera: Tettigoniidae) is a color polymorphic bush cricket endemic to the Fırtına Valley in the northeast of Turkey. This paper describes the local population size and dynamics of the species distributed in 13 different habitat patches within the Fırtına Valley. Local population size varied greatly between sites, and a 1-week delay in nymph emergence and maturation was recorded at the highest habitat patch relative to all habitat patches located at lower altitudes. The results given in this paper suggest that the I. rizeensis population in the Fırtına Valley constitutes a metapopulation made up of several local …

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A New Record For The Harvest Spider Fauna Of Turkey: Dicranolasma Giljarovi Silhavy, 1966 (Opilionida, Dicranolasmatidae), Abdullah Bayram, İlkay Çorak Öcal Jan 2007

A New Record For The Harvest Spider Fauna Of Turkey: Dicranolasma Giljarovi Silhavy, 1966 (Opilionida, Dicranolasmatidae), Abdullah Bayram, İlkay Çorak Öcal

Turkish Journal of Zoology

The characteristic features and drawings of Dicranolasma giljarovi Silhavy, 1966, which is a new record for the harvest spider fauna of Turkey, are given. In addition, habitat, phenology and the geographical distribution of the species are presented. The specimens were collected from different parts of Turkey.

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Gastropod Shell Species Occupied By Hermit Crabs (Anomura: Decapoda) Along The Turkish Coast Of The Aegean Sea, A. Suat Ateş, Tuncer Katağan, Ahmet Kocataş Jan 2007

Gastropod Shell Species Occupied By Hermit Crabs (Anomura: Decapoda) Along The Turkish Coast Of The Aegean Sea, A. Suat Ateş, Tuncer Katağan, Ahmet Kocataş

Turkish Journal of Zoology

This study aimed to describe the gastropod shell species inhabited by hermit crabs (Anomura: Decapoda) collected during investigations of the decapod fauna of the Turkish Aegean Sea coast. We documented 12 hermit crab species inhabiting 16 species of gastropod shells. The hermit crab, Pagurus anachoretus Risso, 1827, had the highest inhabitation frequency (IF), inhabiting 37.5% of all the samples collected. The gastropod shell most inhabited was Bittium latreillii (Payraudeau, 1826), which accounted for 66.7% of inhabited shells.

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The Morphological Features Of The Development Stages Of Pselaphochernes Scorpioides (Hermann, 1804) (Arachnida, Pseudoscorpionida), Fati̇h Sezek, Muhli̇s Özkan Jan 2007

The Morphological Features Of The Development Stages Of Pselaphochernes Scorpioides (Hermann, 1804) (Arachnida, Pseudoscorpionida), Fati̇h Sezek, Muhli̇s Özkan

Turkish Journal of Zoology

The morphological features of the developmental stages of Pselaphochernes scorpioides Hermann, 1804 are given.

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Larval Development Of Himri, Barbus Luteus (Cyprinidae: Cypriniformes) Reared In The Laboratory, Ramez Al Hazzaa, Abdulrazak Hussein Jan 2007

Larval Development Of Himri, Barbus Luteus (Cyprinidae: Cypriniformes) Reared In The Laboratory, Ramez Al Hazzaa, Abdulrazak Hussein

Turkish Journal of Zoology

Larval development of the himri barbel, Barbus luteus Heckel, reared at 19-22 °C in natural daylight is described. Morphological and some functional character appearances were similar to the main ontogenetic steps of development in most cyprinids. Small hatched larvae attained both metamorphosis and a length of 10.5 mm after almost 35 days. Relative growth of the selected body proportions demonstrated typical priorities in growth compared to the length. An ontogenetic index was inferred from applying age and length criteria at metamorphosis as a scale for ontogenetic events.

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Gonad Development And Sex Ratio Of Sharptooth Catfish (Clarias Gariepinus Burchell, 1822) Cultured Under Laboratory Conditions, Şehri̇ban Çek, Erdal Yilmaz Jan 2007

Gonad Development And Sex Ratio Of Sharptooth Catfish (Clarias Gariepinus Burchell, 1822) Cultured Under Laboratory Conditions, Şehri̇ban Çek, Erdal Yilmaz

Turkish Journal of Zoology

In the present work, gonad development and sex ratio of sharptooth catfish (Clarias gariepinus) cultured under laboratory conditions over 365 days from hatching were investigated histologically and morphologically. The maturation stage for both males and females was detected 295 days after hatching. Five and 6 developmental stages were indicated for testis and ovaries, respectively. The developmental pattern of ovaries was categorised as the group-synchronous type. The sex ratio of the 200 sampled fish was 90:110 (male:female) and this difference was not significant (P > 0.05). Additionally, final live mean weight of the males was higher than that of the females (P < 0.05). The beginning of vitellogenesis was in April and ovarian development peaked in July. These results suggest that 1-year-old male and female C. gariepinus can be used as brood stock for seed production under standard laboratory conditions.

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The Mollusk Fauna Of Lake Sapanca (Turkey: Marmara) And Some Physico-Chemical Parameters Of Their Abundance, Serap Koşal Şahi̇n, M. Zeki̇ Yildirim Jan 2007

The Mollusk Fauna Of Lake Sapanca (Turkey: Marmara) And Some Physico-Chemical Parameters Of Their Abundance, Serap Koşal Şahi̇n, M. Zeki̇ Yildirim

Turkish Journal of Zoology

To identify the mollusk fauna of Lake Sapanca (Turkey), samples were collected monthly from 5 stations between September 2000 and August 2001. The mollusk fauna of the lake consists of a total of 16 species, 12 of which belong to Gastropoda: Theodoxus fluviatilis, Viviparus acerosus costae, Esperiana accicularis situssineri, Esperiana esperi, Bithynia tentaculata, Lithoglyphus naticoides, Borysthenia naticina, Galba truncatula, Radix labiata, Lymnaee stagnalis, Planorbis planorbis, and Oxyloma elegans, and 4 to Bivalvia: Unio pictorum, Dreissena polymorpha, Anadonta cygnea, and Sphaerium lacustre. Furthermore, temperature, dissolved oxygen, pH, turbidity, and depth of each sample were measured at the sampling sites.

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The Karyotype Of The Wild Boar Sus Scrofa Linnaeus, 1758 In Turkey (Mammalia: Artiodactyla), İrfan Albayrak, Si̇nan İnci̇ Jan 2007

The Karyotype Of The Wild Boar Sus Scrofa Linnaeus, 1758 In Turkey (Mammalia: Artiodactyla), İrfan Albayrak, Si̇nan İnci̇

Turkish Journal of Zoology

This study is based on the karyological analyses of 4 Sus scrofa specimens obtained from Kırıkkale province in 2003 and 2005. It is the first time that karyotypes of Turkish wild boar specimens were determined. The diploid chromosome number (2n) is 38 and number of autosomal arms (NFa) 60. Karyological data were compared to the relevant literature. The results showed that the Turkish wild boar is different from central and western continental European specimens having 36 chromosomes and is identical to the domestic pig, and ones from east and south-east Europe and the Mediterranean islands.

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