Yazar "Bayhan, Bahar" seçeneğine göre listele

Listeleniyor 1 - 5 / 5
  • [ X ]
    Öğe
    ABNORMALITIES IN THE WEDGE SOLE Dicologlossa cuneata (MOREAU, 1881) AND BLACK SEA TURBOT Scophthalmus maeoticus (PALLAS, 1814) FROM TURKISH SEAS
    (2015) Ulutürk, Efe; Filiz, Halit; Acarlı, Deniz; Irmak, Erhan; Bayhan, Bahar
    Both color and morphological abnormalities on two different flatfish species [Dicologlossa cuneata (Moreau, 1881) and Scophthalmus maeoticus (Pallas, 1814)] have been recorded from Turkish seas. Abnormal flatfish species, Dicologlossa cuneata (Moreau, 1881), wedge sole, was sampled from two different localities in Aegean sea. First wedge sole from Izmir bay (Aegean sea) had three different colour abnormalities (ambicoloration; albinism and xanthochroism) on eyed and blind sides of their body. Other abnormal wedge sole specimen from Ekincik cove (Aegean sea) had ambicoloration on blind side of the body. Second abnormal flatfish species Scophthalmus maeoticus (Pallas, 1814), Black sea turbot, was caught from the Black sea coast of Istanbul and the specimen had totally ambicolored (blind side of the body was colored as like as eyed side) and morphological abnormalities (a fleshy piece-hook-above the head).
  • [ X ]
    Öğe
    LENGTH-WEIGHT RELATIONS FOR 29 FISH SPECIES FROM HOMA LAGOON, AEGEAN SEA, TURKEY
    (Wydawnictwo Akad Rolniczej W Szczecinie, 2014) Acarli, Deniz; Kara, Ali; Bayhan, Bahar
    In the course of the presently reported study, covering the Homa Lagoon, Izmir Bay, Turkey, we collected a total of 2690 fish specimens belonging to 15 families and representing 29 species: Anguilla anguilla (Linnaeus, 1758); Atherina hepsetus Linnaeus, 1758; Atherina boyeri Risso, 1810; Belone belone (Linnaeus, 1761); Blennius ocellaris Linnaeus, 1758; Sardina pilchardus (Walbaum, 1792); Aphanius fasciatus (Valenciennes, 1821); Engraulis encrasicolus (Linnaeus, 1758); Gobius niger Linnaeus, 1758; Pomatoschistus marmoratus (Risso, 1810); Pomatoschistus minutus (Pallas, 1770); Zosterisessor ophiocephalus (Pallas, 1814); Dicentrarchus labrax (Linnaeus, 1758); Chelon labrasus (Risso, 1827); Liza aurata (Risso, 1810); Liza ramada (Risso, 1827); Liza saliens (Risso, 1810); Mugil cephalus Linnaeus, 1758; Mullus barbatus Linnaeus, 1758; Mullus surmuletus Linnaeus, 1758; Syngnathus acus Linnaeus, 1758; Syngnathus typhle Linnaeus, 1758; Diplodus annularis (Linnaeus, 1758); Diplodus vulgaris (Geoffroy Saint-Hilaire, 1817); Lithognathus mormyrus (Linnaeus, 1758); Sarpa salpa (Linnaeus, 1758); Sparus aurata Linnaeus, 1758; Platichthys flesus (Linnaeus, 1758); Solea solea (Linnaeus, 1758). The fish were weighed, and measured and their length-weight relations were determined. Samples were collected during 2009-2010 using four different types of fishing gear (beach seine, fyke nets, barrier trap, and trammel nets; mesh size: 25, 28, and 30 mm) that allowed both adult and juvenile specimens to be captured. Significant length-weight relations were found for all species. The exponent b varied between 2.753 for Pomatoschistus marmoratus and 3.650 for Aphanius fasciatus (mean value = 3.115). The length-weight parameters of the same species may be different in the population because of feeding, reproduction activities and fishing etc. Therefore, we need to know length-weight relations of fish, which are captured in a given place in a certain period of time. Length-weight relations for 5 out of the 29 fish species are presented for the first time from Homa Lagoon in the Turkish Aegean Sea.
  • Küçük Resim
    Öğe
    Length-weight relationships for 57 fish species of Bakircay river estuary in Candarli bay
    (Parlar Scientific Publications, 2021) Babauglu, Ali Ozcan; Bayhan, Bahar; Kara, Ali; Acarlı, Deniz
    Known as the fourth longest river in the Aegean sea with its 129 km length, the Bakircay River flows into candarli Bay in the north of Aegean sea. This study was conducted to measure length weight relationships (LWRs) of fishes captured with different fishing gears in the estuary of Bakircay River. This is the first study on this subject. The fishes that caught by each gear and carried in boxes to the lab were measured for total length (TL) as cm and wet weighed (W) as g. The length-weight (LW) relationships were estimated by W=aL(b). The level of statistical significance for r(2) was determined with LogW=loga +blogn. LW relationships were calculated in 57 fish species of 27 families from Bakircay River Estuary in candarli Bay. 3487 fish samples were caught with beach seines, handlines, longlines, fyke nets, scoop nets, cast net and trammel net between November 2012 and December 2015. The number of the samples ranged from 9 individuals for Gusterosteus actileants to 133 ones for Solen spiera, r(2) values varied from 0.84 to 0.99. All regressions were highly significant (p<0.01). The value h of the LW regression changed between 2.371 in Engraulis efricrasicohrs and 3.490 in Syngnathus acus with a median of 3.134 where 25-75% of the values changed from 3.010 and 3,170. Species of Sparidae. Mugilidae and Gobiidae families were captured more than others, which can be accepted as a typical feature for Mediterranean estuarine areas.
  • [ X ]
    Öğe
    New records of Bregmaceros atlanticus (Bregmacerotidae), Echiodon dentatus (Carapidae) and Nemichthys scolopaceus (Nemichthyidae) from the Aegean Sea
    (Pensoft Publishers, 2007) Filiz, Halit; Akçinar, S. Can; Ulutürk, Efe; Bayhan, Bahar; Taşkavak, Ertan; Sever, T. Murat; Bilge, Gökçen
    Three fish species, Bregmaceros atlanticus Goode et Bean, 1886 (Bregmacerotidae), Echiodon dentatus (Cuvier, 1829) (Carapidae), and Nemichthys scolopaceus Richardson, 1848 (Nemichthyidae) were recorded in the Si?acik and Kuşadasi Bays (Eastern Aegean Sea, Turkey). B. atlanticus and E. dentatus constitute new records for the Turkish waters and the Aegean Sea, respectively. The finding of Nemichthys scolopaceus is the second record for the Aegean Sea.
  • [ X ]
    Öğe
    The first record of the oilfish Ruvettus pretiosus Cocco, 1833 (Pisces: Gempylidae) from the Sea of Marmara, Turkey
    (Walter De Gruyter Gmbh, 2017) Acarli, Deniz; Altinagac, Ugur; Ozekinci, Ugur; Bayhan, Bahar
    The benthopelagic oilfish Ruvettus pretiosus Cocco, 1833 was recorded for the first time from the Marmara Sea coast in Turkey. In addition, this is the third record of the species from the Turkish sea waters.