scholarly journals First Observation of the Nocturnal Cleaning Relationship between Common Octopus Octopus vulgaris (Cuvier, 1797), and Indo-Pacific Palaemonid Shrimp, Urocaridella pulchella Yokeş & Galil, 2006 from the Iskenderun Bay, Eastern Mediterranean Coast of Turkey

2021 ◽  
Vol 8 (2) ◽  
pp. 98
Author(s):  
Deniz Ergüden ◽  
Deniz Ayas ◽  
Necdet Uyğur
Keyword(s):  
Eastern Mediterranean ◽  
Natural Habitat ◽  
Marine Species ◽  
Mediterranean Coast ◽  
Octopus Vulgaris ◽  
Night Time ◽  
Underwater Observation ◽  
Iskenderun Bay ◽  
Common Octopus ◽  
First Time

During a Scuba survey in Iskenderun Bay at night time on November 2018, a female Urocaridella pulchella individual was observed with nocturnal cleaning on Octopus vulgaris at 16 m in depth. Some photos of the shrimp and its symbiont were taken. Although the nocturnal cleaning relationship between U. pulchella and various marine species has been reported in some studies, the nocturnal cleaning relationship between O. vulgaris and U. pulchella has been observed for the first time. In addition, in the present study, we first reported Indo-Pacific palaemonid shrimp U. pulchella which was encountered in its natural habitat during an underwater observation from Iskenderun Bay, and this report is the first observation for this area and fills a gap in the distribution range of this species.Keywords: eastern Mediterranean, Iskenderun coast, nocturnal cleaning, Palaemonidae, Turkey.

scholarly journals Common octopus (Octopus vulgaris) fisheries in Andalusia Mediterranean coast: Trends in fleet dynamics and the population structure of stock

2019 ◽  
Vol 6 ◽  
Author(s):  
Cristina Ciércoles ◽  
Ana Garrido ◽  
Estefanía León ◽  
JOSE MIGUEL SERNA ◽  
MANUEL JESUS ACOSTA ◽  
...  
Keyword(s):  
Population Structure ◽  
Mediterranean Coast ◽  
Octopus Vulgaris ◽  
Common Octopus ◽  
Fleet Dynamics

scholarly journals Occurrence of Bluntnose Sixgill Shark Hexanchus griseus (Bonnaterre, 1788) in Yeşilovacık Bay, Northeastern Mediterranean

2019 ◽  
pp. 1-7
Author(s):  
Deniz Ayas ◽  
Deniz Ergüden ◽  
Nuray Çiftçi ◽  
Mısra Bakan
Keyword(s):  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Mediterranean Coast ◽  
Shark Species ◽  
Female Specimen ◽  
The West ◽  
Protection Measures ◽  
Total Length ◽  
Iskenderun Bay ◽  
Specific Conservation

Aims: In this study, an individual of H. griseus was caught from the Mersin Bay and this ichthyologic note presents a new female record of H. griseus for Mersin Bay, Mediterranean coast of Turkey. This study aims to contribute to the chronological records of the species in the Mediterranean Sea. Place and Duration of Study: Yeşilovacık bay is a small bay in the west of Mersin Bay. Yeşilovacık bay which lies at approximately 36°07’n latitude, 33°37’e, longitude and about 143 km Western of in Mersin province, Turkey. Sample: On 19 March 2018 blunthose sixgill shark specimen was measured and then deposited in the Museum of the Systematic, Faculty of Fisheries, University of Mersin. Methodology: A female specimen of H. griseus with a total length (TL) of 350 cm (400 kg) was captured by a commercial trawl at a depth around of 280 m of the Yeşilovacık Bay (Northeastern Mediterranean Sea), Turkey. Total length was measured to the nearest 1 mm and the weight of the specimen was determined to the nearest kilogram. Results: Measurements of the specimen are presented and compared with the previous records of H. griseus in the Eastern Mediterranean coast of Turkey (Iskenderun Bay), which are given in Table. The identification was carried out according to the previous report. Conclusion: To date specific conservation measures are not known for this species for the Northeastern Mediterranean coast of Turkey. Thus, the effect of coastal fishery for sharks should be regularly monitored and protection measures should be taken in this region in order for this shark species to continue their conservation for the next generation.

scholarly journals The first Report of The Parasitic Copepod Bomolochus unicirrus (Copepoda: Bomolochidae) From Turkey

2017 ◽  
Vol 5 (4) ◽  
pp. 335
Author(s):  
İbrahim Demirkale ◽  
Argun Akif Özak ◽  
Yetkin Sakarya
Keyword(s):  
Eastern Mediterranean ◽  
Parasitic Copepod ◽  
The Other ◽  
The North ◽  
The Family ◽  
North Eastern ◽  
Iskenderun Bay ◽  
Gill Filaments ◽  
First Time ◽  
Scanning Electron

In this study, Bomolochus unicirrus Brian, 1902, a species of parasitic copepod belonging to the family Bomolochidae (Claus, 1875), was reported for the first time from the north-eastern Mediterranean waters off the Turkish coast. Parasites were collected from the gill filaments of the European barracuda, Sphyraena sphyraena(L.)captured by trawling in Iskenderun Bay, Turkey. The morphological features of B. unicirrus were Redescribed and illustrated based on the newly collected material. Key diagnostic characters and newly observed details in some structures are highlighted and supported by using scanning electron microscopy (SEM). Differences and simply overlooked details in previous descriptions of B. unicirrus, are discussed in detail. In addition, morphological comparisons between presently reported species and the other species of the genus Bomolochus Nordmann, 1832 were also presented.

scholarly journals The Plague of Octopus on the South Coast, and its effect on the Crab and Lobster Fisheries.

1900 ◽  
Vol 6 (2) ◽  
pp. 260-273 ◽  
Author(s):  
Walter Garstang
Keyword(s):  
The Other ◽  
South Coast ◽  
Channel Islands ◽  
Octopus Vulgaris ◽  
The South ◽  
The Past ◽  
Unlimited Number ◽  
Common Octopus ◽  
First Time

Until the spring of 1899 the true or common octopus (Octopus vulgaris, L.) had been comparatively rare in the neighbourhood of Plymouth during the past ten or twelve years—i.e. since the opening of the Plymouth Laboratory in 1888. Specimens could only be obtained for the aquarium at long intervals, in spite of the tempting inducements offered to fishermen. As much as ten shillings has more than once been given to fishermen for a specimen of this voracious mollusk. On the other hand, the smaller and less powerful octopod known as Eledone cirrosa was almost always obtainable, and the octopus tank in the aquarium was rarely devoid of several specimens.In the early part of last year (1899) the situation began to change, and we were for the first time able to keep the tank supplied with a number of true octopus, since which date there has been no difficulty in procuring an unlimited number of specimens, either from the professional fishermen or in the ordinary course of our own fishing operations.We noticed this increase in the abundance of octopus before there was any means of judging whether it was a purely local phenomenon, or was observable over a wider area. The first specimens were brought to us in January, and from May onwards they were obtained in increasing abundance. Early in the same year, however (though I have no exact record of the date), a visitor from the Channel Islands informed me that the increase of octopus in those islands was so great as to have already caused much damage to the shell fisheries there, since the octopus entered the pots of the fishermen, and destroyed the crabs and lobsters which had been caught.

Evidence of external digestion of crustaceans in Octopus vulgaris paralarvae

2000 ◽  
Vol 80 (3) ◽  
pp. 559-560 ◽  
Author(s):  
Vicente Hernández-García ◽  
Ana Y. Martín ◽  
José J. Castro
Keyword(s):  
Octopus Vulgaris ◽  
Crab Species ◽  
The Common ◽  
Common Octopus ◽  
First Time ◽  
Decapod Larvae ◽  
Three Phases

This paper reports, for the first time, the existence of external digestion of decapod larvae by the common octopus, Octopus vulgaris (Mollusca: Cephalopoda), paralarvae. Zoeae of three crab species were externally digested, leaving a whole and empty exoskeleton. The attack sequence on these prey is also described, and divided into the same three phases (attention, positioning and seizure) already known for Sepia hatchlings.

Age and growth of the common guitarfish, Rhinobatos rhinobatos, in Iskenderun Bay (north-eastern Mediterranean, Turkey)

2008 ◽  
Vol 88 (4) ◽  
pp. 837-842 ◽  
Author(s):  
Nuri Başusta ◽  
Sefa Ayhan Demirhan ◽  
Erdoğan Çiçek ◽  
Asiye Başusta ◽  
Tuncay Kuleli
Keyword(s):  
Eastern Mediterranean ◽  
Growth Curves ◽  
Mediterranean Coast ◽  
Age And Growth ◽  
Pooled Data ◽  
Total Length ◽  
The North ◽  
North Eastern ◽  
Iskenderun Bay ◽  
The Common

Age and growth of the common guitarfish (Rhinobatos rhinobatos) were estimated from the north-eastern Mediterranean coast of Turkey. A total of 115 common guitarfish (66 females and 49 males) were sampled. Age determinations were carried out using vertebral sections. Alcian blue dying techniques were used to enhance the visibility of the band on vertebrae. The techniques have been used for the first time on elasmobranchs vertebrae successfully in this study. A total of 97 vertebrae of 115 were visible on the vertebral band in this study. Male and female common guitarfish ranged in age from 1 to 15 and 1 to 24 y respectively. Total length ranged from 42 to 147 cm for females and 39 to 124 cm for males.The relationships between total length (TL) and total weight (TW) were presented as TW = 0.0014*TL3.1672 (R2 = 0.98) for females, TW = 0.0012*TL3.1947 (R2 = 0.98) for males and TW = 0.0012*TL3.1915 (R2 = 0.98) for both sexes. The parameters for von Bertalanffy growth curves were estimated as Linf  = 137.70±9.38 cm, K = 0.159±0.047, to = −2.180 ± 0.90 for pooled data.

First report of Laurencia chondrioides (Ceramiales, Rhodophyta) and its potential to be an invasive in the eastern Mediterranean Sea

2014 ◽  
Vol 57 (6) ◽  
Author(s):  
Razy Hoffman ◽  
Marcelo Sternberg ◽  
Donatella Serio
Keyword(s):  
Mediterranean Sea ◽  
Eastern Mediterranean ◽  
Marine Species ◽  
Mediterranean Coast ◽  
Red Seaweed ◽  
Eastern Mediterranean Sea ◽  
First Report ◽  
First Occurrence ◽  
The Mediterranean ◽  
Invasive Marine Species

AbstractThe Mediterranean coast of Israel is well known as a hotspot of invasive marine species, mostly from the Indian and Pacific oceans. Here, we report the first occurrence of the red seaweed

scholarly journals Marine alien species in Greek Seas: Additions and amendments by 2010

2011 ◽  
Vol 12 (1) ◽  
pp. 95 ◽  
Author(s):  
A. ZENETOS ◽  
S. KATSANEVAKIS ◽  
D. POURSANIDIS ◽  
F. CROCETTA ◽  
D. DAMALAS ◽  
...  
Keyword(s):  
Alien Species ◽  
New Records ◽  
Eastern Mediterranean ◽  
Grey Literature ◽  
Marine Species ◽  
Warm Water Species ◽  
Marine Alien Species ◽  
First Time ◽  
Water Species ◽  
Of Greece

An update of the inventory of alien marine species from the coastal and offshore waters of Greece is presented. Records were compiled based on the existing scientific and grey literature, including the HCMR database of Greek alien species (ELNAIS), technical reports, scientific congresses, academic dissertations, websites, and unpublished/personal observations. 47 species were added to the inventory, including 34 invertebrates, one vertebrate (fish), three plants, eight protozoa, and one cyanobacterium. With the new records, the inventory of alien marine species of Greece now includes a total of 237 species (33 macrophytes, 131 invertebrates, 42 vertebrates, two bacteria and 29 protozoans). Among these, the presence of the gastropodHypselodoris infucata, the bivalvesDendrostrea frons and Septifer forskaliand the chondrichthyan Rhizoprionodon acutus is reported here for the first time. Based on molecular analysis, the occurrence of Bulla arabica in Greek waters is confirmed, and the suggestion that previous records of Bulla ampulla in the Mediterranean should be considered as misidentification of B. arabica is further supported. The acclimitization status of earlier records was revised in the light of new data, and thus the fishEnchelycore anatina, Seriola fasciata andTylerius spinosissimus, the red algaeHypnea cornuta and Sarconema scinaioides, the scyphomedusaCassiopea andromeda, the cephalopodSepioteuthis lessoniana, the nudibranchChromodoris annulata and the bivalvesGastrochaena cymbium andPseudochama corbieri were upgraded from casual records to established populations. The increased rate of introductions of warm water species confirms previous findings, which link the rate of introduction in the eastern Mediterranean to climate change.

scholarly journals Occurrence of the Blue Button Porpita porpita (Linnaeus, 1758) in the Iskenderun Bay, Northeastern Mediterranean Coast of Turkey

2020 ◽  
Vol 61 (2) ◽  
pp. 185-190
Author(s):  
Mevlüt Gürlek ◽  
Cemal Turan ◽  
Ahmet Gökçen ◽  
Serpil Karan ◽  
Servet A. Doğdu ◽  
...  
Keyword(s):  
First Record ◽  
Mediterranean Coast ◽  
Marine Waters ◽  
The Third ◽  
Iskenderun Bay ◽  
First Time ◽  
Northwestern Mediterranean

The blue button Porpita porpita (Linnaeus, 1758) was observed for the first time in July 2018 in the Iskenderun Bay, Northeastern Mediterranean coast of Turkey. This is the third record of this species for Turkish marine waters, while it is the first record for Iskenderun bay. The presence of P. porpita in the northeastern Mediterranean coast of Turkey shows its extension from northwestern Mediterranean coast (Antalya Bay) of Turkey.

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