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Articles 1981 - 2010 of 2105
Full-Text Articles in Animal Sciences
Light Microscopic Studies On The Histological Development And Histochemical Structure Of The Duodenum On The Prenatal Stage On The Sheeps, Kenan Çinar, Fuat Bi̇lgi̇n, Abdullah Di̇ler
Light Microscopic Studies On The Histological Development And Histochemical Structure Of The Duodenum On The Prenatal Stage On The Sheeps, Kenan Çinar, Fuat Bi̇lgi̇n, Abdullah Di̇ler
Turkish Journal of Zoology
This study was carried out with the aim to investigate of histological structure of duodenum and histochemical character of duodenal mucous on Akkaraman sheep foetus by during intrauterin development. In the study, the number 40 duodenum belonging to the Akkaraman sheep foetus was used as a material. More concentrate neutral mucosubstans and glycogen containing of Lamina epithelialis was determined that it is multilayer structure showing on early development stages not to be found of villi. The later development stages, neutral and asidic mucosubstans containing of goblet cells on Lamina epithelialis was detected that it is convertible to monolayer prizmatic form. …
Effect Of Synthetic Juvenile Hormone C-16 On The Adult Diapause In Anacridium Aegyptium L., Gürsel Ergen, Erdoğan Er
Effect Of Synthetic Juvenile Hormone C-16 On The Adult Diapause In Anacridium Aegyptium L., Gürsel Ergen, Erdoğan Er
Turkish Journal of Zoology
In this study, two different concentrations (10.000 ppm, 15.000 ppm) of synthetic juvenile hormone (SJH) C-16 were topically applied to the diapausing adults of Anacridium aegyptium L. (Orthoptera: Acrididae). The treatment of SJH at two concentrations induced yolk deposition and terminal oocytes growth. The findings showed that development of the eggs was directly proportional with the concentrations of SJH. Concentration of 15.000 ppm was found more effective than 10.000 ppm. Therefore, we have concluded that (SJH) C-16 can terminate adult reproductive diapause in A. aegyptium.
Accumulaton Of Metal And Metal Mixture In The Spleen, Brain And Muscle Tissues Of Tilapia Nilotica, Murat Karakoç, Feri̇t Kargin
Accumulaton Of Metal And Metal Mixture In The Spleen, Brain And Muscle Tissues Of Tilapia Nilotica, Murat Karakoç, Feri̇t Kargin
Turkish Journal of Zoology
Accumulation of zinc and copper in the spleen, brain and muscle tisses of Tilapia nilotica was investigated by using copper (0.1, 0.5 and 1.0 ppm) and zinc (1.0, 5.0 and 10.0 ppm) and copper-zinc mixture (0.1+1.0, 0.5+5.0 and 1.0+10.0 ppm) in the medium for the periods of 30 and 60 days. No mortality was observed during the exposure to of copper, zinc and copper-zinc mixtures over 60 days In both cases (alone and mixture) the highest levels of zinc and copper were accumulated in the spleen, whereas accumulation was the lowest in the brain. Accumulation of a metal in the …
Granular Haemocytes Of Ciona Intestinalis (Tunicata, Ascidiacea), Ayla Öber
Granular Haemocytes Of Ciona Intestinalis (Tunicata, Ascidiacea), Ayla Öber
Turkish Journal of Zoology
The granular blood cells of Tunicates are distinguished in six different types according to the granular density, amount, localization and other cytoplasmic characteristics. They're compared with those of invertebrates and Amphioxus which is the closest group to the Tunicates.
Differentiation Of Brain Neurosecrotory Cells Depending On Ecdysteroid Content Of Haemolymph During 5 Th. Instar Larval Stage Of Silkworm, Bombyx Mori, Osman Parlak, Güler Ünal
Differentiation Of Brain Neurosecrotory Cells Depending On Ecdysteroid Content Of Haemolymph During 5 Th. Instar Larval Stage Of Silkworm, Bombyx Mori, Osman Parlak, Güler Ünal
Turkish Journal of Zoology
In this study, the differentiation in the lateral neurosecretion cells of pars intercerebralis of brain, depending on the different ecdysteroid contents which was determined in the hemolymph of silkworm by radioimmunoassay has been studied using light microscopy. The brains of silkworms in the time of low and high hemolymph ecdysteroid content were fixed in Bouin solution, and the cross sections were stained with PAF after dehidratation. Results shown that the density of fine secretion granulles increased in the cytoplasm of neurosecration cells just before the increase of ecdysteroid content in hemolymph. It was also observed that the ecdysteroid content in …
The Effect Of Water On Growth, Food Consumption, Feces Quantity, Digestive Activity And Glycogen Level Of Gryllus Bimaculatus (Orthoptera: Gryllidae), Ati̇la Yanikoğlu
The Effect Of Water On Growth, Food Consumption, Feces Quantity, Digestive Activity And Glycogen Level Of Gryllus Bimaculatus (Orthoptera: Gryllidae), Ati̇la Yanikoğlu
Turkish Journal of Zoology
In this study, the effect of water on growth (wet weight gain), food consumption, feces quantity, digestive activity and glycogen level of Gryllus bimaculatus female adults was investigated by doing the experiments of feeding and starvation. Wheat bran was given for feeding. All parameters were found to be significantly higher in insects feeding with water than those feeding without water. A significant difference did not occur in mean wet weight and glycogen level in insects either feeding without water or starved for one week. At the end of the experimental period, a wet weight gain (43%) was observed only in …
A Study On The Flesh Productivity And Standard Method For Collecting Of Helix Lucorum Linnaeus, 1758, M. Zeki̇ Yildirim, M. Rüştü Özen, Mustafa Ünlüsayin, Hayri̇ Gülyavuz
A Study On The Flesh Productivity And Standard Method For Collecting Of Helix Lucorum Linnaeus, 1758, M. Zeki̇ Yildirim, M. Rüştü Özen, Mustafa Ünlüsayin, Hayri̇ Gülyavuz
Turkish Journal of Zoology
In this study that has been verified at the Eğirdir environs, Helix lucorum which is one of the edible terrestrial snail species in Turkey, and a standard method of collecting snail samples for consumption were investigated. In the area of study, it was observed that individuals begin to reproduce at the second week of February and that they are spawninig during March-May when the climate is mild. It was also determined that the minimum shell length of individuals is 22 mm, and that shell diameter is 31 mm, and that weight is 10 g which were measured during reproducing period. …
New, Little-Known And Characteristic Ciliate Speciesfrom The Apsheron Coast Of The Caspian Sea, Ilham Alekperov, Esmira Asadullayeva
New, Little-Known And Characteristic Ciliate Speciesfrom The Apsheron Coast Of The Caspian Sea, Ilham Alekperov, Esmira Asadullayeva
Turkish Journal of Zoology
Three new, five little-known and five characteristic ciliate species are described and figured. All these species were found in the psammon and periphyton along the Apsheron coast of the Caspian Sea (Azerbaijan). The descriptions are based on the observations of living specimens and the analysis of slides impregnated with silver.
Effects Of Salinity On The Accumulation Of Copper In Liver, Gill And Muscle Tissues Of Tilapia Nilotica, Murat Karakoç
Effects Of Salinity On The Accumulation Of Copper In Liver, Gill And Muscle Tissues Of Tilapia Nilotica, Murat Karakoç
Turkish Journal of Zoology
In this study, effects of 5, 10, 15 and 20 NaCl concentrations on the accumulation of copper in liver, gill and muscle tissues of Tilapia niloticawere studied over experimental periods of 1, 7, 15 and 30 days at concentrations of 0.1, 1.0 and 10.0 ppm copper in the medium. The highest levels of copper were found in the liver and the lowest values in the muscle tissue in a given NaCl and metal concentration. Accumulation of copper in the liver tissue, however, increased with increasing copper concentrations in the medium in all salt concentrations. The increase of the NaCl concentration …
The Effects Of Toxic Aluminium And Low Ph On Gill Development Of Rainbow Trout ( Oncorhynchus Mykiss, Walbaum) Larvae., Meti̇n Çalta
The Effects Of Toxic Aluminium And Low Ph On Gill Development Of Rainbow Trout ( Oncorhynchus Mykiss, Walbaum) Larvae., Meti̇n Çalta
Turkish Journal of Zoology
In this study, the gill development of rainbow trout ( Oncorhynchus mykiss Walbaum) larvae exposed to toxic aluminium (200 ?g/L), those exposed low pH (4.5) alone and those exposed to both for 30 days were investigated under scanning electron microscopy. General appearance of gills, filament and lamella lengths and the number of lamellae per filament were determined in order to evaluate the effects of these toxicants on gill development. In addition, the death rates and general conditions of larvae were observed. In larvae exposed to low pH alone and in those exposed to aluminium alone, a slight thickness in the …
A Study Of The Taxonomy And Karyology Of Meriones Persicus (Blanford, 1875) (Mammalia: Rodentia) In Turkey, Nuri̇ Yi̇ği̇t, Ercüment Çolak
A Study Of The Taxonomy And Karyology Of Meriones Persicus (Blanford, 1875) (Mammalia: Rodentia) In Turkey, Nuri̇ Yi̇ği̇t, Ercüment Çolak
Turkish Journal of Zoology
In this study, three live specimens captured around Oltu ( Erzurum ) were examined in terms of their morphological and karyological features. The diploid number of the chromosomes was 2n= 42, the fundamental number FN= 78 and the number of autosomal arms was FNa= 74. The X and Y chromosomes were both submetacentric in M. persicus. It was determined that the small white supraorbital spot found between the eyes and ears of the pelage, as well as karyological traits, distinguish Meriones persicus from Meriones tristrami. On the basis of morphological similarity, it was concluded that these taxa were sibling species.
A Note On The Examination Of Morphometric Differentiation Among Fish Populations: The Truss System, Cemal Turan
A Note On The Examination Of Morphometric Differentiation Among Fish Populations: The Truss System, Cemal Turan
Turkish Journal of Zoology
Identifying intraspecific units or stocks of a species with unique morphological characters enables a better management of these subunits of species and ensurs perpetuations of the resources. Multivariate morphometry has been commonly used to investigate the discreteness and interrelationships of stocks within a species. Different types of body measurements have been traditionally used to charecterise stocks. However these measurements have recently been criticised because there are several biases and weaknesses inherent in traditional characters. As an alternative, a new system of morphometric measurements called The Truss Network System has been increasingly used for stock identification. In this review a computer-originated …
Karyological Analysis And Body Proportion Of Catfish (Clariidae, Clarias Lazera, Valenciennes, 1840) In The Göksu Delta, Turkey, Serap Ergene Gözükara, Ender Portakal, Arzu Karahan
Karyological Analysis And Body Proportion Of Catfish (Clariidae, Clarias Lazera, Valenciennes, 1840) In The Göksu Delta, Turkey, Serap Ergene Gözükara, Ender Portakal, Arzu Karahan
Turkish Journal of Zoology
Chromosome analysis of Clarias lazera living in wet lands located in Göksu River (Göksu Delta) was accomplished by modified air-drying. Clarias lazera was found to have 18 metacentric, 26 submetacentric and 12 acrocentric chromosomes. Twenty-five systematically important meristic and morphometric characters of Clarias lazera in the Göksu Delta were examined for 49 specimens. In order to clarify the taxonomic status of Clarias lazera, which is not originally from this region, karyological analyses were carried out, and certain some morhometric characteristics were investigated.
A Morphological Investigation On The Anuran Species Of The Reşadiye (Datça) Peninsula (Anura: Bufonidae, Hylidae, Ranidae), Cemal Varol Tok
A Morphological Investigation On The Anuran Species Of The Reşadiye (Datça) Peninsula (Anura: Bufonidae, Hylidae, Ranidae), Cemal Varol Tok
Turkish Journal of Zoology
In this survey the amphibian fauna of Reşadiye (Datça) Peninsula, which has not been studied in detail so far, is given. No urodelan species has been encountered during the present work; but the presence of four different species belonging to three anuran families is established. Bufo bufo, Bufo viridis, Hyla arborea and Rana ridibunda specimens were collected from two, five, three and six different localities respectively, establishing the status of the peninsula's anura fauna. A total of 125 adult and two juvenile specimens were studied morphologically. Some observations on the ecological and biological characteristics of the anurans are also given.
Specimens Of Ophisops Elegans (Sauria:Lacertidae) Collected From Ihlara Valley (Aksaray), Kurtuluş Olgun, Cemal Varol Tok
Specimens Of Ophisops Elegans (Sauria:Lacertidae) Collected From Ihlara Valley (Aksaray), Kurtuluş Olgun, Cemal Varol Tok
Turkish Journal of Zoology
In this study, a total of 30 specimens (15 , 15 ) collected from Ihlara Valley were examined for their taxonomic characteristics. The Ihlara population was compared with two nearby populations (Kayseri and Karaman), which are included in the distribution range of Ophisops elegans centralanatoliae. When pholidosis, coloration and pattern features were taken into consideration it was concluded that the Ihlara population can be included in the species Ophisops elegans centralanatoliae.
On Lacerta Danfordi (Reptilia: Lacertidae) Population Of The Köyceğiz Specially Protected Area, İbrahi̇m Baran, Yusuf Kumlutaş
On Lacerta Danfordi (Reptilia: Lacertidae) Population Of The Köyceğiz Specially Protected Area, İbrahi̇m Baran, Yusuf Kumlutaş
Turkish Journal of Zoology
In this study, the material collected from Köyceğiz Specially Protected Area, and islands in the vicinity of Marmaris were divided into four different populations and examined comperatively from the view point of taxonomic characters. The populations inhabiting the western and eastern sides of the Köyceğiz Canal are distinctly different from each other regarding their supratemporal stripe characteristics.
Histological Investigation Of Gonad Development Of Chalcalburnus Tarichi (P., 1811), Güler Ünal, Osman Çeti̇nkaya, Mahmut Elp
Histological Investigation Of Gonad Development Of Chalcalburnus Tarichi (P., 1811), Güler Ünal, Osman Çeti̇nkaya, Mahmut Elp
Turkish Journal of Zoology
In this study, gonad development of Chalcalburnus tarichi, an anadromus, endemic fish species of the Lake Van and its inlets was histologically investigated. During oogenesis, six different development phases were histologically identified: chromatin-nucleolus, perinuclear, cortical alveolar, vitellogenic, ripening and ovulation phases. The diameters of oocytes were determined between 31 to 957 µm until the ovulation phase. According to the investigated sepcimens, vitellogenic phase started onward October and first ovulation was taken place in May-June 36 months and older females. It was found that some unspawned ova remained and formed atretic follicles in ovary after ovulation. Three different development phases were …
Species And Subspecies Of The Genus Aphanius Nardo 1897 (Pisces: Cyprinodontidae) In Turkey, Rudolf H. Wi̇ldekamp, Fahretti̇n Küçük, Mustafa Ünlüsayin, Wi̇m Van Neer
Species And Subspecies Of The Genus Aphanius Nardo 1897 (Pisces: Cyprinodontidae) In Turkey, Rudolf H. Wi̇ldekamp, Fahretti̇n Küçük, Mustafa Ünlüsayin, Wi̇m Van Neer
Turkish Journal of Zoology
The Turkish species of the Cyprinodontiform genus Aphanius Nardo 1827 are described. The naming used follows Wildekamp (1993) (1) as the latest available revision. Information is given on morphology, sexual dimorphism, colouration and distribution, as well as remarks on taxonomy, nomenclature, distribution, variability and conservation. Comments are given on the Lazara (1995) (2) revalidation of Lebias as a distinct genus. It is shown that Valenciennes (1846) (3) is the first revisor of Lebias, and not Lazara, and that Aphanius should be maintained as a genus. The taxon Aphanius chantrei (Galliard 1895) is regarded as a junior synonym of Aphanius danfordii …
The First Record Of Epistylis Niagaraeon Astacus Leptodactylusin A Crayfish Rearing Unit, Cip, Muzaffer Mustafa Harlioğlu
The First Record Of Epistylis Niagaraeon Astacus Leptodactylusin A Crayfish Rearing Unit, Cip, Muzaffer Mustafa Harlioğlu
Turkish Journal of Zoology
In this study, the presence of the ectocommensal Epistylis niagarae on the carapace, abdomen, walking legs, uropod, telson, antennae and antennulae of crayfish was observed.
Taxsonomical States Of Lacerta Viridis (Lacertidae) Populations From Turkey, İ. Ethem Çevi̇k, Yusuf Kumlutaş
Taxsonomical States Of Lacerta Viridis (Lacertidae) Populations From Turkey, İ. Ethem Çevi̇k, Yusuf Kumlutaş
Turkish Journal of Zoology
In this research, , A total of 64 MM and 37 VV adult specimens from Turkish Thrace and 158 MM and 188 VV adult specimens from Anatolia were investigated comparatively as two separate populations groups to determine the subspecific status of the species in Turkey. No significant differences are discernible between the two population groups from the viewpoints of pholidosis, morphometrical measurements and rations and pattern and coloration characteıistics. So the Turkish L. viridis populations belong to a single subspecies L. v. meridionalis.
A Taxonomical Study On The Cladocera And Copepoda Species (Crustacea) Of Mert, Erikli, Hamam, Pedina Lakes (İğneada/Kırklareli), Hüseyi̇n Güher
A Taxonomical Study On The Cladocera And Copepoda Species (Crustacea) Of Mert, Erikli, Hamam, Pedina Lakes (İğneada/Kırklareli), Hüseyi̇n Güher
Turkish Journal of Zoology
In this study, the species of Cladocera and Copepoda in the Mert, Erikli, Hamam and Pedina lakes located in the region of İğneada/ Kırklareli were determined during the period of April 1993-May 1994. Results show that the study area is represented with a total of 32 Cladocera and 19 Copepoda species. Of these, Ceriodaphnia megops (Cladocera) is a new record for Turkey.
Investigation On The Blood Cell Counts Of Chalcides Ocellatus (Sauria: Scincidae) Population In Anatolia, Ahmet Mermer
Investigation On The Blood Cell Counts Of Chalcides Ocellatus (Sauria: Scincidae) Population In Anatolia, Ahmet Mermer
Turkish Journal of Zoology
In this investigation, the blood cell counts (erythrocyts and leucocyts) of 136 Chalcides ocellatus specimens (75 females + 61 males), collected from different locations in Anatolia have been investigated from the view point of the effects of geographical distance and altitude factors. The blood cell counts are found to be highest in the population from Gaziantep-Urfa and the cause of this difference is evaluated as due to geographic variation.
An Investigation On The Morphology Of Genital Organs And Oviposition Capacit Of Cicadatra Persica Kirkaldy, 1909 (Cicadidae, Homoptera), Veysel Kartal, Ünal Zeybekoğlu
An Investigation On The Morphology Of Genital Organs And Oviposition Capacit Of Cicadatra Persica Kirkaldy, 1909 (Cicadidae, Homoptera), Veysel Kartal, Ünal Zeybekoğlu
Turkish Journal of Zoology
The aims of this study was determine the morphology of genital organs and maximum oviposition of capacity of a female of Cicadatra persica, which is distributed in Central Anatolia region is harmfull for plants. Therefore, 15 adult male and 15 adult female samples were investigated. The morphology of internal and external genital structures were identified and presented as illustrations. In a female, X 417±7 ovariols, in each ovariol X =3,4±0,1 oocyst were counted and the maximum egg number which was laid by a single female was found as X =1417±24.
Tabanidae (Diptera) Fauna Of Turkish Thrace Region, Ali̇ Yavuz Kiliç
Tabanidae (Diptera) Fauna Of Turkish Thrace Region, Ali̇ Yavuz Kiliç
Turkish Journal of Zoology
Sixtyfour species of Tabanidae (Diptera) were determinated in Trakya region of Turkey by this study. Eight of these, Chrysops relictus Meig., Dasyramphis anthracinus (Meig.), Atylotus latistriatus (Brauer), A. venturii Leclercq, Hybomitra bimaculata (Macq.), H. pilosa (Loew), Tabanus maculicornis Zetterstedt, Haematopota gallica Szi., are new records for Tabanidae fauna of Turkey. 33 out of 64 species were recorded by their distribution patterns in Trakya region for the first time. The number of Tabanidae species in Trakya region reached to 74 with this study and the previous records.
Faunistic And Taxonomic Studies On The Geometridae Species Of Turkish Thrace, Zühal Okyar, Ni̇hat Aktaç
Faunistic And Taxonomic Studies On The Geometridae Species Of Turkish Thrace, Zühal Okyar, Ni̇hat Aktaç
Turkish Journal of Zoology
The present study was undertaken to determine the fauna of Geometridae in Turkish Thrace. Samples were collected from 81 different localities between 19911993. Results show that Geometridae is represented with a total of 115 species belonging to 67 genus of 5 subfamilies as follows : Archiearinae; 1 genus and 1 species, Geometrinae; 4 genus and 4 species, Scopulinae; 7 genus and 41 species, Larentiinae; 22 genus and 31 species, Ennominae; 33 genus and 38 species. On the one hand, of these, 49 species are new records for Turkish Thrace, on the other, within these species, 17 are new records for …
Rodent Fauna Of Imbros And Tenedos (Mammalia:Rodentia), Beytullah Özkan
Rodent Fauna Of Imbros And Tenedos (Mammalia:Rodentia), Beytullah Özkan
Turkish Journal of Zoology
Imbros and Tenedos,Northern islands of Eagean Sea,were visited as a total of 122 days between 1990-1992 and 449 rodent samples were collected.In Imbros,7 rodent species (Sciurus anomalus,Apodemus flavicollis,Apodemus sylvaticus,Rattus rattus,Rattus norvegicus,Mus macedonicus,Spalax leucodon)belonging to 3 families (Sciuridae,Muridae,Spalacidae)and in Tenedos,4 species (Apodemus hermonensis,Rattus rattus,Mus domesticus,Spalax leucodon)of 2 families (Muridae,Spalacidae) were determined. Using the information about their ecological features,morphological comporision of same aged rodent samples from islands with the Thrace and Northwest Anatolia was carried out.As a result of the comparision,it was found that Sciurus of Imbros, Apodemus and Spalax samples of Tenedos showed similarity to the samples from Northwest Anatolia,whereas Apodemus …
Some Biological Characteristics Of Picarel (Spicara Smaris, Linnaeus 1758) In The Eastern Black Sea Coast Of Turkey, Temel Şahi̇n, Yaşar Genç
Some Biological Characteristics Of Picarel (Spicara Smaris, Linnaeus 1758) In The Eastern Black Sea Coast Of Turkey, Temel Şahi̇n, Yaşar Genç
Turkish Journal of Zoology
In this study, the following biological characteristics of picarel (Spicara smaris, Linnaeus 1758) in the Eastern Black Sea Coast have been examined: sex and age distribution, growth in length and weight, growth rates, condition factor and spawning period. A total of 456 individuals, ranged between age groups I-VI, have been composed by 61.41 % females, 38.58 a/o males. The length and weight differences between females and males were significant in age group II (P
On The Lizards Of The Reşadiye (Datça)Peninsula, Cemal Varol Tok
On The Lizards Of The Reşadiye (Datça)Peninsula, Cemal Varol Tok
Turkish Journal of Zoology
Eleven species from six families of lizards have been found in the Reşadiye (Datça)Peninsula between the years 1990-1993.In this survey the morphological characteristics such as pholodisis,color-pattern and body measurements and ratios have been investigated.Systematic positions the species of which we have a sufficient number of samples were more accurate in terms of morfhological characteristics. Besides,the biological and ecological information on the species were also given.
Reseaches On Parasitic Helminths Of Bufo Viridis Laurenti, 1768 (Anura; Amphibia), Hi̇kmet Sami̇ Yildirimhan
Reseaches On Parasitic Helminths Of Bufo Viridis Laurenti, 1768 (Anura; Amphibia), Hi̇kmet Sami̇ Yildirimhan
Turkish Journal of Zoology
In this study, it has been investigated 119 night frog (58 males, 61 females) Bufo viridis Laurenti, 1768 collected from Bursa and Büyükdöllük Marsh place in Edirne between March 1993 and June 1995. During this study Polystoma viridis, Proteocephalus sp., Nematotaenia dispar (Included Plathelminthes), Rhabdias bufonis, Oswaldocruzia filiformis, Cosmocerca commutata, Cosmocercoides sp., Neoxsyomatium brevicautadum (Included Nemathelminthes), Acanthocephalus ranae (Included Acanthocephala) were found. This is the first study concerning the helminth fauna on the Bufo viridis distributed in Turkey. Also all the parasitic species found on the Bufo viridis have been recorded for the first time.
Growth Features Of Pikeperch (Stizostedion Lucioperca L., 1758) Population In Eğirdir Lake, Zehra Arzu Becer Özvarol, Ramazan İki̇z
Growth Features Of Pikeperch (Stizostedion Lucioperca L., 1758) Population In Eğirdir Lake, Zehra Arzu Becer Özvarol, Ramazan İki̇z
Turkish Journal of Zoology
In this research, 672 pikeperch samples which were catched between September 1993-August 1994 from Eğirdir Lake were investigated. Average length, weight; rate of increase in length and weight, age-weight and length-weight relationships for each age group of pikeperch were estimated. Result of the growth at the population of pikeperch especially low growth rate was seen in the II. age group. The catching musn't given permission the pikeperch which under 36.06 cm length in Eğirdir lake for the future of pikeperch population.