Cirrophorus species (Annelida: Polychaeta: Paraonidae) in the Sea of Marmara, with description of a new species

Erdoğan-Dereli, Deniz, Çinar, Melih Ertan, Dağli, Ertan (2017): Cirrophorus species (Annelida: Polychaeta: Paraonidae) in the Sea of Marmara, with description of a new species. Zootaxa 4347 (1): 137-150, DOI: https://doi.org/10.11646/zootaxa.4347.1.

FIGURE4. Cirrophorus nikebianchii. A in Cirrophorus species (Annelida: Polychaeta: Paraonidae) in the Sea of Marmara, with description of a new species

FIGURE4. Cirrophorus nikebianchii. A, overview (ESFM-POL/2013-1308); B, anterior end, lateral view (ESFM-POL/2013- 1308); C, pygidium, ventral view (ESFM POL/2013-1321); D, neuropodium, chaetiger 122 (ESFM POL/2013-1310); E, lyrate chaetae, chaetiger 93 (ESFM POL/2013-1310); F, modified neurochaeta, chaetiger 145 (ESFM POL/2013-1311). Scale bar: A=143 µm, B=125 µm, C=195 µm, D=170 µm, E=38 µm, F=207 µm

Annelids (Polychaeta and Oligochaeta) from the Sea of Marmara, with descriptions of five new species

This paper deals with annelids (Oligochaeta and Polychaeta) collected in the Sea of Marmara between 2006 and 2010 at depths from 0 to 66 m. A total of five oligochaete and 198 polychaete species were found. Five polychaete species, namely Prosphaerosyllis marmarae sp. nov., Levinsenia demiri sp. nov., Levinsenia kosswigi sp. nov., Levinsenia marmarensis sp. nov. and Levinsenia tribranchiata sp. nov. are new to science, and five oligochaete and 84 polychaete species are new to the fauna of the Sea of Marmara. A list of species found in the region and their maximum densities are presented at depth intervals. The present material includes six alien polychaete species, Paraprionospio coora, Polydora cornuta, Prionospio (Minuspio) pulchra, Pseudopolydora paucibranchiata, Chaetozone corona and Metasychis gotoi, of which the latter four species were new records for the region

FIGURE 8. Cirrophorus branchiatus.A in Cirrophorus species (Annelida: Polychaeta: Paraonidae) in the Sea of Marmara, with description of a new species

FIGURE 8. Cirrophorus branchiatus.A, overview (ESFM/POL-2013-1048); B, anterior end, lateral view (ESFM/POL-2013- 1048); C, prostomium and proboscis, ventro-lateral view (ESFM/POL-2013-62); D, pygidium (ESFM/POL-2013-1048); E, acicular chaeta (ESFM/POL-2013-1048). Scale bar:A=660 µm, B=444 µm, C=192 µm, D=83 µm, E=21 µm

Sinop yarımadası kıyıları (Güney Karadeniz, Türkiye) karışık deniz çayırı yataklarının, Zostera marina L. and Z. noltii Hornem., krustase faunasında görülen zamansal ve alansal değişimler

Bu araştırma Sinop Yarımadası kıyılarının (Güney Karadeniz, Türkiye) üst infralittoral zonunda yayılış gösteren karışık deniz çayırı yataklarının (Zostera marina, Z. noltii) makrobentik krustase türlerini ve biyoekolojik özelliklerini tespit etmek amacıyla yürütülmüştür. Araştırmalar Haziran 2004-Nisan 2005 tarihleri arasında Sinop Yarımadası kıyılarından seçilen 6 farklı istasyonda 2-4 m derinliklerde mevsimsel olarak gerçekleştirilmiştir. Sonuç olarak, 6 ordoya ait toplam 55 tür ile bunlara ait 7057 birey tanımlanmıştır. Amphipoda ordosu tür (% 63) ve birey sayısı bakımından (% 83) en baskın grup olup bunlardan 1902 bireyle (% 27) Ampelisca pseudospinimana en baskın türleri oluşturmaktadır. Bununla birlikte, Isopoda toplam biyomasın % 47’sini oluşturmaktadır. Tespit edilen türler içerisinde en yüksek biyomas değeri % 35 ile Idotea balthica’ ya aittir. Frekans indeksine göre 26 tür devamlı, 13 tür yaygın ve 16 tür de seyrek olarak tanımlanmıştır. En yüksek tür (maks. 26 tür. m-2) ve birey sayısı (2069 birey.m-2) 4 nolu istasyonda sonbahar ve yaz mevsiminde, en az tür ve birey sayısı ise 1 nolu istasyonda kış mevsiminde (min. 6 tür.m-2; 8 birey.m-2) tespit edilmiştir.This research was carried out to determine the macrobenthic crustacean species associated with mixed eelgrass beds (Zostera marina and Z. noltii) occurring in the upper-infralittoral zone of the Sinop peninsula coast (the southern Black Sea, Turkey) and their bioecolological features. From June 2004 to April 2005, investigations were seasonally performed at the depths of 2-4 m at 6 different stations chosen on the Sinop peninsula coast. As a result of the study, a total of 7057 individuals belonging to 55 species and 6 orders were identified. Amphipoda was the dominant group in terms of number of species (63% of the total of orders) and number of individuals (83% of the total individuals). Among these, Ampelisca pseudospinimana had the highest dominance value with up to 1902 specimens (approximately 27%). However, Isopoda accounted for 47% of the total biomass. The species that have the highest individual biomass was isopod, Idotea balthica (35% of total biomass). According to a frequency index, 26 species were designated as constant, 13 species as common and 16 species as rare. The highest number of species (max. 26 species m-2) and number of individuals (2069 ind.m-2) were found at station 4 in fall and summer and the lowest at station 1 in winter (min. 6 species m-2; 8 ind. m-2)

Spatial and temporal variations of soft bottom polychaetes of Sinop Peninsula(southern Black Sea) with new records

The soft bottom polychaete community was examined seasonally at eight stations between August 2009 and July 2010. A total of 76 species belonging to 27 families were identified in the Sinop Peninsula (southern Black Sea), of which 23 species are new records for the Black Sea fauna and 7 species for the Black Sea coast of Turkey. Syllidae was the best represented family in the research area and contributed 15.78% of the total fauna. The most dominant and frequent species were Micronephthys stammeri and Protodorvillea kefersteini in the study area. Community parameters varied significantly among stations and seasons; number of species ranged from 1 to 21 per 400 cm2, density from 25 to 16,700 ind. m2, ShannonWiener diversity index value from 0 to 3.4, and Pielou evenness index value from 0 to 0.98. The highest population density was recorded at station C1 in winter, where P. kefersteini was the most dominant species (15,125 ind. m2). The correlation between polychaete community and environmental variables was strongly high (r 0.91) according to canonical correlation analysis. The main factors affecting the polychaete assemblages were depth and sediment texture

Ophelia bicornisSavigny in Lamarck, 1818 (Polychaeta: Opheliidae)'in Karadeniz (Sinop Yarımadası)'in Türkiye Kıyılarından İlk Kaydıve Ekolojik Özellikleri

Bu makale Sinop Yarımadası'nda (Karadeniz, Türkiye) Ağustos 2009 ve Temmuz 2010 tarihleri arasında 4 istasyondan aylık olarak toplanan Ophelia bicornis Savigny in Lamarck, 1818'in ekolojik ve morfometrik özellikleri hakkındadır. Bu çalışmanın amacı O. bicornis'i Karadeniz'in Türkiye kıyılarından ilk kez rapor etmek ve Sinop Yarımadası kıyılarındaki populasyon yoğunluğunu tespit etmektir. Çalışma bölgesinde toplam 699 adet O. bicornis bireyi toplanmıştır. En yüksek ve en düşük yoğunluk A istasyonunda sonbaharda (sırasıyla Ekim, Kasım) saptanmıştır. O. bicornis'in dişi bireyleri Mayıs ve Ekim ayları arasında kaydedilmiştir. Boy (mm)-Ağırlık (g) ilişkisi için hesaplanan regresyon formülü W0,0002TL2,11 olarak hesaplanmıştır ve bu sonuç O. bicornis'in allometrik olarak büyüdüğünü göstermektedir. O. bicornis biyokütlesi ve birey sayısı ile kaba kum tane boyu yüzdesi arasında istatistiksel olarak anlamlı ilişki olduğu tespit edilmiştirThe present paper deals with ecological and morphometric features of Ophelia bicornis Savigny in Lamarck, 1818 collected monthly from the Sinop Peninsula (Black Sea, Turkey) between August 2009 and July 2010 from 4 stations. This study aimed to report the polychaete for the first time from the Turkish coast of the Black Sea and to determine the population density of O. bicornis on the coasts of the Sinop Peninsula. A total of 699 individuals of O. bicornis were collected. The maximum and minimum density was counted at station A in autumn (October, November, respectively). The female individuals of O. bicornis were recorded between May and October. The regression formula for the length (mm)-weight (g) relationship was found to be W0.0002×TL2.11, indicating that the growth for O. bicornis is allometric. The statistically significant correlation between percentages of coarse sand and number of individuals and biomass of O. bicornis were estimate