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A Preliminary Study On The Population Dynamics Parameters Of Whiting (Merlangius Merlangus Euxinus) In Turkish Black Sea Coastal Waters, Ali̇ İşmen Jan 2002

A Preliminary Study On The Population Dynamics Parameters Of Whiting (Merlangius Merlangus Euxinus) In Turkish Black Sea Coastal Waters, Ali̇ İşmen

Turkish Journal of Zoology

Some population parameters of the whiting (Merlangius merlangus euxinus) distributed along the Turkish Black Sea coast, were determined by using age-length data. The mean annual growth rate in length was found to be 3.7 cm. The maximum age group was determined as IX for females and VI for males. The seasonalized von Bertalanffy growth parameters in length were estimated to be L_o=39.1 cm, K = 0.15 year^{-1}, t_o = -1.53 year, C=0.23, t_s=0.48. There was a difference in growth rate between male and female fish. The females grow faster than males and reach a greater maximum length. Total mortality and …


A New Record For The Turkish Spider Fauna: Cyclosa Conica Pallas (Araneae, Araneidae), Abdullah Bayram, Murat Ünal Jan 2002

A New Record For The Turkish Spider Fauna: Cyclosa Conica Pallas (Araneae, Araneidae), Abdullah Bayram, Murat Ünal

Turkish Journal of Zoology

The characteristic features and drawings of Cyclosa conica Pallas, 1772, which is recorded for the first time in Turkey, are given in this study.


On The Distribution And Taxonomic Status Of Microtus Guentheri (Danford And Alston, 1880) And Microtus Lydius Blackler, 1916 (Mammalia: Rodentia) In Turkey, Nuri̇ Yi̇ği̇t, Ercüment Çolak Jan 2002

On The Distribution And Taxonomic Status Of Microtus Guentheri (Danford And Alston, 1880) And Microtus Lydius Blackler, 1916 (Mammalia: Rodentia) In Turkey, Nuri̇ Yi̇ği̇t, Ercüment Çolak

Turkish Journal of Zoology

Topotypes of Microtus guentheri were compared with specimens of the genus Microtus with 2n=54 chromosomes from western Anatolia. According to morphological and biometrical comparisons, it was determined that M. guentheri is a different species from Microtus lydius. The dorsal colour and the shape of the baculum distinguish M. guentheri from M. lydius morphologically. In addition, ear length, interorbital constriction, mastoid breadth, height of tympanic bulla and weight of M. guentheri were found to be statistically different from those of the nominate subspecies of M. lydius (p


The Effects Of Acute Stress On Rainbow Trout (Oncorhynchus Mykiss), Ayşegül Kubi̇lay, Gülşen Uluköy Jan 2002

The Effects Of Acute Stress On Rainbow Trout (Oncorhynchus Mykiss), Ayşegül Kubi̇lay, Gülşen Uluköy

Turkish Journal of Zoology

The physiological effects of acute stressors (transport, handling, netting and confinement) on rainbow trout in an aquaculture system were investigated. Serum cortisol level, serum glucose and lysozyme activity were determined in rainbow trout stressed by acute stressors, and compared with those of unstressed (control) fish. Serum cortisol, glucose levels and lysozyme activity were significantly higher(P


The Ostracoda (Crustacea) Fauna Of Lakes Erikli, Hamam, Mert, Pedina And Saka (İğneada, Kırklareli,Turkey), Okan Köylüoğlu, Erdoğan Usta, M. Teki̇n Babaç Jan 2002

The Ostracoda (Crustacea) Fauna Of Lakes Erikli, Hamam, Mert, Pedina And Saka (İğneada, Kırklareli,Turkey), Okan Köylüoğlu, Erdoğan Usta, M. Teki̇n Babaç

Turkish Journal of Zoology

No abstract provided.


The Effects Of High Salinity On The Production Of Capoeta Tinca In A Naturally Contaminated River, Fi̇tnat Güler Ekmekçi̇ Jan 2002

The Effects Of High Salinity On The Production Of Capoeta Tinca In A Naturally Contaminated River, Fi̇tnat Güler Ekmekçi̇

Turkish Journal of Zoology

The production properties of Capoeta tinca, the dominant fish population in a naturally contaminated stream in the Kızılırmak Basin, were studied together with the physical and chemical characteristics of the waters and evaluated in order to assess the impact of the high natural salinity on the fish population. The evaluation was based on comparisons of fish specimens caught from Acı stream, which is highly contaminated by a lithology of high salt content, and those from Terme stream, the uncontaminated freshwater branch, between May 1995 and May 1996. The salinity and electrical conductivity of Acı stream varied between 2‰ and 8.5‰, …


Three New Rhizopulvinaria Species (Homoptera: Coccoidea: Coccidae) For Scale Insect Fauna Of Turkey, Mehmet Bora Kaydan, Ferenc Kozar, Bülent Yaşar Jan 2002

Three New Rhizopulvinaria Species (Homoptera: Coccoidea: Coccidae) For Scale Insect Fauna Of Turkey, Mehmet Bora Kaydan, Ferenc Kozar, Bülent Yaşar

Turkish Journal of Zoology

Three Rhizopulvinaria species, Rhizopulvinaria pyrethri Borchsenius, Rhizopulvinaria turkestanica (Archangelskaya), and Rhizopulvinaria viridis Borchsenius, were identified on wild flora in eastern Anatolia in 1997. All of them are new records for the Turkish scale insect fauna.


Androgenesis: The Best Tool For Manipulation Of Fish Genomes, Minal P. Bhise, Tariq A. Khan Jan 2002

Androgenesis: The Best Tool For Manipulation Of Fish Genomes, Minal P. Bhise, Tariq A. Khan

Turkish Journal of Zoology

Androgenesis involves the development of an organism with only paternal chromosomes. The induction of androgenesis using diploid sperm, highly effective UV-irradiation of egg, dispermy using heterologous eggs, the possibility of producing supermales for all male production and the recovery of cryopreserved sperm are recent technological developments in androgenesis in fish. However, few researchers have successfully produced viable diploid androgens in fish. The authors made an attempt to induce androgenesis in the common carp (Cyprinus carpio L.) and the results are discussed along with the potential applications of androgenesis in conserving fish genomes and current knowledge on inducing androgenesis in fish.


Community Structure Of Macrobenthos Of A Southeast Texas Sand-Pit Lake Related To Water Temperature, Ph And Dissolved Oxygen Concentration, Kemal Çeli̇k Jan 2002

Community Structure Of Macrobenthos Of A Southeast Texas Sand-Pit Lake Related To Water Temperature, Ph And Dissolved Oxygen Concentration, Kemal Çeli̇k

Turkish Journal of Zoology

Water temperature (°C), pH, dissolved oxygen concentration (mg/l) and the community structure of the macrobenthos of a small southeast Texas sand-pit (Barry's) lake were studied from June 1995 to February 1996, which covered climatic extremes. The lake was a warm monomictic lake and no anoxic conditions were observed at any depth during the entire study period. A total of 50 taxa and 5614 individuals of macrobenthos were collected. The dominant organisms were Chaoborus punctipennis (Say), Limnodrilus hoffmeisteri (Claparede), and Dero obtusa (Udekem). The only established populations at 6.5 m were Chaoborus punctipennis, Limnodrilus hoffmeisteri, and Chironomus sp. Species diversity ranged …


The Occurrence Of The Rumen Ciliate Metadinium Banksi Dehority, 1985 (Ophryoscolecidae, Entodiniomorphida) From Domestic Goats (Capra Hircus L.) In Southeastern Turkey, Bayram Göçmen, Burk A. Dehority, Sami̇ye Rastgeldi̇ Jan 2002

The Occurrence Of The Rumen Ciliate Metadinium Banksi Dehority, 1985 (Ophryoscolecidae, Entodiniomorphida) From Domestic Goats (Capra Hircus L.) In Southeastern Turkey, Bayram Göçmen, Burk A. Dehority, Sami̇ye Rastgeldi̇

Turkish Journal of Zoology

Metadinium banksi was observed in rumen contents from a single goat out of eight living in southeastern Turkey. It constituted 0.25% of the total ciliate population and had a 12.5% frequency of appearance. The size and percentage occurrence of this species in the present study are compared to those previously reported for other animal hosts living in different geographical locations. This study reports for the first time in Turkey the presence of Metadinium banksi in arctic ruminants.


Coccid (Homoptera: Coccoidea) Species Of Isparta Province, And Their Parasitoids From Turkey And Georgia, George Japoshvili, İsmai̇l Karaca Jan 2002

Coccid (Homoptera: Coccoidea) Species Of Isparta Province, And Their Parasitoids From Turkey And Georgia, George Japoshvili, İsmai̇l Karaca

Turkish Journal of Zoology

A list of coccids distributed in Isparta province (Turkey) is given in this paper. Their parasitoids determined in Isparta and previously reported from Turkey and Georgia are also discussed. As a result of the survey studies performed in June-November, 2001, 21 species of coccids were found on different host plants in Isparta province. From 16 of these coccids, 19 species of parasitoids were obtained. The similarity index of two countries in terms of their coccid parasitoids fauna was 0.635.


The Growth Features Of Tench (Tinca Tinca L., 1758) In Bayındır Dam Lake, Ankara, Turkey, Ahmet Altindağ, Syed Lal Shah, Si̇bel Yi̇ği̇t Jan 2002

The Growth Features Of Tench (Tinca Tinca L., 1758) In Bayındır Dam Lake, Ankara, Turkey, Ahmet Altindağ, Syed Lal Shah, Si̇bel Yi̇ği̇t

Turkish Journal of Zoology

The growth features of tench, Tinca tinca, in Bayındır Dam Lake were studied between March 1999 and February 2000. A total of 100 samples (51 males and 49 females) were examined. Age in both sexes ranged from age group I to V. The sex ratio was 1.04 and 1.0 for males and females respectively. The fork length and weight of females and males varied from 15.2 to 33.2 cm and 51.4 to 650.7 g and 15.7 to 34.7 cm and 52.8 to 822.6 g respectively. Age-length and age-weight relationships were obtained using the Von Bertalanffy growth equation. Allometric growth patterns …


Age Determination Of Shad (Alosa Pontica Eichwald,1838) Inhabiting The Black Sea, Savaş Yilmaz, Nazmi̇ Polat Jan 2002

Age Determination Of Shad (Alosa Pontica Eichwald,1838) Inhabiting The Black Sea, Savaş Yilmaz, Nazmi̇ Polat

Turkish Journal of Zoology

The most reliable bony structure and method were investigated for age determination of shad (Alosa pontica Eichwald, 1838) inhabiting the Black Sea. Therefore, five bony structures such as scale, vertebra, otolith, opercle and subopercle were removed from 240 individuals collected from April 1998 to April 1999. Each bony structure was prepared for age determination by different techniques, and examined by binocular microscope. Mean ages were estimated for each bony structure-reader combination and the precision of age estimated from multiple readings was evaluated. Furthermore, the error of ageing was calculated. Vertebra was the most reliable bony structure for ageing this species …


Comparison Of The Growth Performance And Mortality In Abant Trout (Salmo Trutta Abanticus Tortonese, 1954) And Rainbow Trout (Oncorhynchus Mykiss Walbaum, 1792) Under Farming Conditions, İrfan Uysal, Ati̇lla Alpbaz Jan 2002

Comparison Of The Growth Performance And Mortality In Abant Trout (Salmo Trutta Abanticus Tortonese, 1954) And Rainbow Trout (Oncorhynchus Mykiss Walbaum, 1792) Under Farming Conditions, İrfan Uysal, Ati̇lla Alpbaz

Turkish Journal of Zoology

This experiment was conducted between 15th February 2000 (day 1) and 31st January 2001 (day 350) at the DSI-Gölköy Fish Production Station, Bolu (Turkey). Abant trout larvae obtained from eggs of wild Abant trout broodstocks in Lake Abant and rainbow trout larvae obtained from eggs of the hatchery broodstocks in Gölköy Fish Production Station were used. Trials I and II involved eight groups (four Abant and rainbow trout experimental groups, and four Abant and rainbow trout parallel groups). A total of 1784 larvae was used in both the trials. At the end of the experiment, although the mean wet weight …


Some Assyriellaspecies In South East Anatolia In Turkey Differentiated By Multivariate Statistical Analysis (Gastropoda: Pulmonata, Helicidae), Hasan Akbayin, Murat Hevedanli, Ridvan Şeşen Jan 2001

Some Assyriellaspecies In South East Anatolia In Turkey Differentiated By Multivariate Statistical Analysis (Gastropoda: Pulmonata, Helicidae), Hasan Akbayin, Murat Hevedanli, Ridvan Şeşen

Turkish Journal of Zoology

This study was performed on 3 species of the genus Assyriella ( A. escheriana , A. guttata and A. thospitis) collected from Diyarbakır province in Southeast Anatolia. Two derived and 6 shell variables of 50 specimens were examined for each species. Hierarchical clustering and discriminant analysis were used to evaluate the data in order to clarify and contribute to some systematic problems of these species. It was shown that Ward's method with Euclidean distance is the most appropriate hierarchical clustering method to cluster these species. A. escheriana is clearly differentiated from A. guttata and A. thospitis by both Ward's method …


Morphological And Serological Investigations On The Mountain Frogs Of The Mid-Taurus Range Between East Longitudes 33^O And 36^O, Hüseyi̇n Arikan, Kurtuluş Olgun, Cemal Varol Tok, İ. Ethem Çevi̇k Jan 2001

Morphological And Serological Investigations On The Mountain Frogs Of The Mid-Taurus Range Between East Longitudes 33^O And 36^O, Hüseyi̇n Arikan, Kurtuluş Olgun, Cemal Varol Tok, İ. Ethem Çevi̇k

Turkish Journal of Zoology

In the present study, a total of 115 (65 , 50 ) specimens of mountain frogs from the mid-Taurus Range between east longitudes 33^o and 36^o were investigated from the morphological and serological points of view. From the data obtained, no differences were found at species level among the 3 populations from the region.


A Study Of The Ecofaunal Complexes Of The Leaf-Eating Beetles (Coleoptera, Chrysomelidae) In Azerbaijan, Nailya Mirzoeva Jan 2001

A Study Of The Ecofaunal Complexes Of The Leaf-Eating Beetles (Coleoptera, Chrysomelidae) In Azerbaijan, Nailya Mirzoeva

Turkish Journal of Zoology

A total of 377 leaf-eating beetle species from 69 genera and 11 subfamilies (Coleoptera, Chrysomelidae) were revealed in Azerbaijan, some of which are important pests of agriculture and forestry. The leaf-eating beetle distribution among different areas of Azerbaijan is presented. In the Great Caucasus 263 species are noted, in the Small Caucasus 206, in Kura - Araks lowland 174, and in Lenkoran zone 262. The distribution of the leaf-eating beetles among different sites is also described and the results of zoogeographic analysis of the leaf-eating beetle fauna are presented as well. Eleven zoogeographic groups of the leaf-eating beetles were revealed …


Marsh Frogs, Rana Ridibunda In Lake Akören -26 August National Park (Afyon): A Preliminary Study Of Population Size And A Taxonomical Evaluation, Uğur Kaya, Uğur C. Eri̇şmi̇ş Jan 2001

Marsh Frogs, Rana Ridibunda In Lake Akören -26 August National Park (Afyon): A Preliminary Study Of Population Size And A Taxonomical Evaluation, Uğur Kaya, Uğur C. Eri̇şmi̇ş

Turkish Journal of Zoology

The population size of marsh frogs, Rana ridibunda was estimated using the mark-recapture method in Lake Akören Lake. The triple catch method was used to calculate survival and gains in addition to population size. The population sizes were estimated to be 3016 on the second day, and 3532 on the third day. On the basis of morphological analyses, we concluded that Lake Akören is inhabited by Rana ridibunda ridibunda.


The Carnivores Of The Northeastern Badia, Jordan, Fayez Bunaian, Alia Hatough, Derar Ababaneh, Sultan Mashaqbeh, Mohamed Yuosef, Zuhair Sami Amr Jan 2001

The Carnivores Of The Northeastern Badia, Jordan, Fayez Bunaian, Alia Hatough, Derar Ababaneh, Sultan Mashaqbeh, Mohamed Yuosef, Zuhair Sami Amr

Turkish Journal of Zoology

The presence of 8 carnivores representing 3 families (Canidae, Felidae and Hyaenidae) in the northeastern Badia was con-firmed by trapping and spotlighting. The family Canidae is represented by 4 species: Canis aureus syriaca, Canis lupus arabs, Vulpes vulpes and Vulpes rueppelli. Three felines, Caracal caracal schmitzi, Felis margarita and Felis sylvestris tristrami, were spotlighted. Remains of recently killed Hyaena hyaena syriacawere recovered. Major threats affecting the population of desert carnivores such as poisoning and shooting are discussed in detail. Current local, IUCN and CITES statues of the carnivores of the Badia area are given.


Turridae Swainson, 1840 Species (Gastropoda-Mollusca) Of İzmir Bay (Aegean Sea), Bi̇lal Öztürk Jan 2001

Turridae Swainson, 1840 Species (Gastropoda-Mollusca) Of İzmir Bay (Aegean Sea), Bi̇lal Öztürk

Turkish Journal of Zoology

This study aims to determine the species belonging to the family Turridae in İzmir Bay, based on specimens collected from 11 stations between 1995 and 1998. As a result of examinations, 15 species are determined in the region. Among these, Mangelia paciniana (Calcara, 1839), Raphitoma echinata (Brocchi, 1814) and Philbertia horrida Monterosato, 1884 are Mediterranean endemic species, and are new records for the Turkish coasts. Other species listed in this study are distributed both in the Mediterranean Sea and the Atlantic Ocean.


A Preliminary Study On The Ladybirds (Coleoptera: Coccinellidae) Of Edirne In North-Western Turkey, Selçuk Yurtsever Jan 2001

A Preliminary Study On The Ladybirds (Coleoptera: Coccinellidae) Of Edirne In North-Western Turkey, Selçuk Yurtsever

Turkish Journal of Zoology

Preliminary investigations were carried out to determine the ladybird species of Turkish Trakya. Population samples for the study were obtained from several sites in different habitats near Edirne province. A total of twelve different ladybird species were determined. Of these, the 7-spot ladybird, Coccinella septempunctata, was the commonest species. The density of the 22-spot ladybird, Psyllobora vigintiduopunctata, was higher than that of the other ladybirds in almost all habitats surveyed. Frequencies of the black and yellow forms of the 14-spot ladybird, Propylea quatuordecimpunctata, in the area showed a tendency to be associated with open and shaded habitats respectively. Moreover, the …


A Study On The Distribution, Morphology And Karyology Of Tatera Indica (Hardwicke, 1807) (Mammalia: Rodentia) In Turkey, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Reyhan Çolak, Şaki̇r Özkurt, Mustafa Sözen Jan 2001

A Study On The Distribution, Morphology And Karyology Of Tatera Indica (Hardwicke, 1807) (Mammalia: Rodentia) In Turkey, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Reyhan Çolak, Şaki̇r Özkurt, Mustafa Sözen

Turkish Journal of Zoology

The Habitat, external and cranial morphologies, and karyotype of Turkish specimens of Tatera indica are described for the first time with this study. It was determined that Tatera indica was located in uncultivated arid and semi-arid habitat in southeastern Turkey. Its external and cranial characteristics are consistent with those detailed in published papers. The karyotype of Tatera indica is composed of 2n = 68, NF = 84 and NFa = 80.


A New Record For The Turkish Cladoceran Fauna: Camptocercus Uncinatus Smirnov, 1971, F. Banu Yalim Jan 2001

A New Record For The Turkish Cladoceran Fauna: Camptocercus Uncinatus Smirnov, 1971, F. Banu Yalim

Turkish Journal of Zoology

The occurrence of Camptocercus uncinatus Smirnov in Turkey is determined. A brief description and the necessary figures of the species are given.


A Study On Helophorusfabricius, 1775 (Coleoptera, Hydrophilidae) Species, Abdullah Mart, Orhan Erman Jan 2001

A Study On Helophorusfabricius, 1775 (Coleoptera, Hydrophilidae) Species, Abdullah Mart, Orhan Erman

Turkish Journal of Zoology

In this study, a list of Helophorus species known in Turkey is presented with their distribution in Turkey and the rest of the world. Of these, Helophorus (Atracthelophorus) arvernicus Mulsant, 1846 and Helophorus (Rhopalhelophorus) kirgisicus Knisch, 1914 are recorded in Turkey for the first time and are reviewed according to our specimens. H. (Transithelophorus) ter- minassianae Angus, 1984, Helophorus (Empleurus) nubilus Fabricius, 1776, H. (Eutrichelophorus) micans Faldermann, 1835, H. (A.) abeillei Guillebeau, 1896 and H. (Rhopalhelophorus) lapponicus Thomson, 1854 have been collected in Erzurum for the first time.


Amphipod Fauna Of The Turkish Central Black Sea Region, Murat Sezgi̇n, Ahmet Kocataş, Tuncer Katağan Jan 2001

Amphipod Fauna Of The Turkish Central Black Sea Region, Murat Sezgi̇n, Ahmet Kocataş, Tuncer Katağan

Turkish Journal of Zoology

Following research into amphipod fauna in the central Black Sea region of Turkey, forty-two species of benthic amphipod were recorded. Of these, Ampelisca pseudospinimana, Gammarellus angulosus, Hyale crassipes, Leptocheirus pilosus, Orchestia mediterranea and Orchestia stephenseni are reported from the Turkish Black Sea for the first time, and Microdeutopus versiculatus and Nannonyx propinquus are new records for Turkish waters. With this study, the number of amphipod species known from the Turkish Black Sea coast has increased from fifty-seven to sixty-five.


A New Lessepsian Mollusc Hypselodoris Infucata(Ruppell And Leuckart, 1828) (Gastropoda: Nudibranchia) For The Coasts Of Turkey, Cem Çevi̇k, Bi̇lal Öztürk Jan 2001

A New Lessepsian Mollusc Hypselodoris Infucata(Ruppell And Leuckart, 1828) (Gastropoda: Nudibranchia) For The Coasts Of Turkey, Cem Çevi̇k, Bi̇lal Öztürk

Turkish Journal of Zoology

In this study, Hypselodoris infucata, which is reported only from Israeli waters, is reported for the first time on theEastern Mediterranean coasts of Turkey, and its morphology and geographic distribution are described.


Studies On Sediment Toxicity Bioassays Using Chironomus Thummi K., 1911 Larvae, Levent Bat, Mehmet Akbulut Jan 2001

Studies On Sediment Toxicity Bioassays Using Chironomus Thummi K., 1911 Larvae, Levent Bat, Mehmet Akbulut

Turkish Journal of Zoology

The acute toxicity of zinc, copper and lead to freshwater dipteran Chironomus thummi larvae was evaluated by static bioassays, calculating the LC_{50} (lethality concentration for 50%). Mortality increased with increasing concentrations of zinc, copper and lead. The LC_{50}s of Zn, Cu and Pb for survival were 11.2, 19.1 and 14.3 µg g^{-1}, respectively. The results indicated that Zn had the greatest toxicity, followed by Pb and Cu. Individual weight increased with increasing Cu, Zn and Pb concentrations. The results are discussed and compared with those of other studies.


The Effects Of Precocene Ii On The Fine Structure Of Corpus Allatum In Adult Female Anacridium Aegyptium L. (Orthoptera, Acrididae), Gürsel Ergen Jan 2001

The Effects Of Precocene Ii On The Fine Structure Of Corpus Allatum In Adult Female Anacridium Aegyptium L. (Orthoptera, Acrididae), Gürsel Ergen

Turkish Journal of Zoology

In this study, the effects of the antijuvenile hormone Precocene II on the corpus allatum of adult females of Anacridium aegyptium L. (Orthoptera) were investigated with electron microscopy. In the insects, topically treated with 500 µg precocene II, the corpora allata did not show marked atrophy or destruction. After 10 or 20 days of precocene II treatment, the ultrastructural changes of especially the nuclei, mitochondria, endoplasmic reticulum membranes, Golgi complexes and some other intracellular organelles in the gland cells, probably reflect a moderate sensitivity to this compound.


A Study On The Ornithofauna Of Doğancı Pond In Alpu-Eskişehir, Eli̇f Erdoğdu Jan 2001

A Study On The Ornithofauna Of Doğancı Pond In Alpu-Eskişehir, Eli̇f Erdoğdu

Turkish Journal of Zoology

This study was carried to determine the ornithofauna of Doğancı Pond and vicinity, which is located in the Alpu District of Eskişehir province. The study area, which is situated on one of the migration routes for birds, has a natural pond and wetlands occurring around the pond during spring and fall. In the study period from August 1996 to August 1997, 86 species and 1 subspecies belonging to 36 families from 13 orders were identified in the area.


Age And Growth Parameters Of Red Bandfish (Cepola Rubescens L., 1766) In İzmir Bay, Murat Kaya, Okan Özaydin, Hüseyi̇n Avni̇ Benli̇ Jan 2001

Age And Growth Parameters Of Red Bandfish (Cepola Rubescens L., 1766) In İzmir Bay, Murat Kaya, Okan Özaydin, Hüseyi̇n Avni̇ Benli̇

Turkish Journal of Zoology

The age and growth parameters of red bandfish (Cepola rubescens L.,1766) were determined from the specimens collected in İzmir Bay (Aegean Sea) between January 1996 and February 1997. Mean length at age data from otolith readings were used to estimate the growth parameters of the von Bertalanffy equation: for females, L_{\infity}=78.48 cm, K=0.17 y^{-1}, t_o=0.0972 y, W_{\infity}=110.00 g, K=0.10 y^{-1}, to=0.1033 y and for males L_{\infity}= 83.22 cm, K=0.16 y^{-1}, t_o=0.0888 y ; W_{\infity}=129.83, K=0.0818 y^{-1}, to=-0.4117 y. Length-weight relationships was estimated for males and females to be W=0.07723 L^{1.11217} and W=0.029154 L^{1.38434}, respectively. The observed mean total length and …