Comparative analysis of the social vulnerability assessment to climate change applied to fisheries from Spain and Turkey

The aim of this study is to assess the climate effects on fisheries from a bottom-up approach based on fishers' fishing experience, knowledge, and perceptions. To perform this task, a social vulnerability assessment was conducted in two different fishing areas: one in Spain and the other one in Turkey. The vulnerability was measured using the collected data and information through a structured questionnaire, and surveys were carried out among fishers in the Castelló (Spain) and the Aegean Sea (Turkey) between 2018 and 2019. Overall, the results indicated that the two studied regions have a moderate to high vulnerability and that the Aegean Sea was slightly more vulnerable than Castelló. It was also found that storms and temperature are the main climatic stressors that affect the fishing sector, and the economic indicators such as revenue from fishing in both regions showed high degrees of sensitivity. To reduce the vulnerability to climate change, adaptive measures should be implemented while taking into consideration the specific socio-economic and institutional characteristics of each region. In conclusion, the effects of climate change on the fishing sector and their social vulnerability are diverse. Consequently, there is no single climate measure that can minimize the vulnerability of fishing sectors in different regions.This study was supported by Faculty of Fisheries, EGE University and Master’s degree program on Sustainable Fisheries Management by University of Alicante and International Center for Advanced Mediterranean Agronomic Studies (CIHEAM)

Tracking aquatic animals for fisheries management in European waters

Acoustic telemetry (AT) has emerged as a valuable tool for monitoring aquatic animals in both European inland and marine waters over the past two decades. The European Tracking Network (ETN) initiative has played a pivotal role in promoting collaboration among AT researchers in Europe and has led to a significant increase in the number of tagged and observed aquatic animals in transboundary European waters. While AT benefits decision-making and delivers essential data to management bodies, its potential for management decision-making mechanisms has yet to be fully harnessed. We reviewed existing research, studies, and organisational initiatives related to aquatic animal tracking and their utility in fisheries management in European waters. We found that AT has already contributed to many aspects of fisheries management, such as improved understanding of stock dynamics, identification of critical habitats, assessment of migration routes, and evaluation of the effectiveness of conservation measures. However, broader utilisation of tracking technologies is needed. By leveraging the full potential of AT, managers can make more informed decisions to protect, restore, and sustainably manage European waters and creatures that live therein

New Alien Mediterranean Biodiversity Records (August 2022)

In this Collective Article on alien and cryptogenic diversity in the Mediterranean Sea we report a total of 19 species belonging to nine Phyla and coming from nine countries. Several of these records concern fish species, and of particular interest are the first records of: Terapon puta for Italian waters; Pteragopus trispilus from Malta; Plotosus lineatus from Cyprus; and the northernmost Mediterranean record of Lagocephalus sceleratus. The northernmost Mediterranean record was also reported for the sea urchin Diadema setosum. The portunid crab Thalamita poissonii was recorded for the first time in Libya. The copepod Pseudodiaptomus marinus was recorded for the first time in the Marmara Sea. The polychaete Branchiomma luctuosum was recorded for the first time from the Mediterranean coast of France. The alien anemone Diadumene lineata was recorded for the first time from Slovenia. The macroalgae Sargassum furcatum was recorded for the first time from Italy. The new Mediterranean records here reported help tracing abundance and distribution of alien and cryptic species in the Mediterranean Sea

Akyaka (Gökova Körfezi) su ürünleri kooperatifinin işleyişi, av miktarı ve fiyat ilişkisi üzerine araştırmalar

Gökova Körfezi, Türkiye’nin en önemli özel çevre koruma (ÖÇK) alanlarından biridir. Körfezde yoğun olarak küçük ölçekli balıkçılık yapılmaktadır. Balıkçılar genel olarak parekete ve uzatma ağları gibi av araçları kullanılmaktadır. Çalışma Akyaka’da lokalize olmuş ve balıkçılık amacıyla körfezi kullanan S.S Akyaka Su Ürünleri kapsamında yürütülmüştür. Çalışmanın materyali bir yıllık (Mayıs 2005- Nisan 2006) kooperatif veri ve kayıtlarına dayanmaktadır. Bundan başka, kooperatif üyeleri ve yönetimiyle yapılan yüz yüze görüşmelerden elde edilen veriler de analiz amacıyla kullanılmıştır. Bu çalışmada, S.S Akyaka Su Ürünleri Kooperatifi’nin işleyişi av kompozisyonu, av miktarı, av gücü, tekne çıkışları, balık fiyat değişimleri gibi değişkenlerin bir yıl boyunca seyri ve aralarındaki ilişkiler incelenmiştir. Bu ilişkiler ortaya konularak, kooperatifin işleyişiyle (kooperatifin genel özellikleri, idari yapısı ve yönetim organları, gelir ve gider kalemleri, sorunları) ve kooperatifin avcılık faaliyetiyle ilgili (türlere göre av miktarı, denize çıkan tekne sayısı, fiyatlar ve aylık değişimler) bulgular çıkarılarak, kooperatifin daha etkin faaliyet göstermesi için önerilerde bulunulmuştur. Kooperatif çatısı altında, toplam 35 kooperatif üyesi ve aktif olarak çalışan yaklaşık 26 balıkçı teknesi kaydedilmiştir. 1992 yılında kurulan kooperatifte en çok işlem gören balık türleri sırasıyla; Ahtapot (Octopus vulgaris), Palamut (Sarda sarda),Mercan (Pagellus erythrinus), Lokum balığı (Saurida undosquamis), Bakalyaro (Merluccius merluccius), Iskarmoz (Sphyraena sp.), Lahos (Epinephelus aeneus), Nil barbunu (Upaneus molluccensis), Karides (Penaeus kerathurus) ve Kupez (Boops boops) türleridir. En çok gelir getiren türler sırasıyla Lahos (Epinephelus aeneus), Karides (Penaeus kerathurus), Mercan (Pagellus erythrinus), Ahtapot (Octopus vulgais), Çipura ((Sparus aurata)), Nil barbunu (Upaneus molluccensis) Bakalyaro (Merluccius merluccius), Iskarmoz (Sphyraena sp.), Karagöz (Diplodus vulgaris) ve Lokum balığı (Saurida undosquamis) olarak saptanmıştır. Ele alınan dönem içinde, kooperatifin toplam pazarladığı su ürünleri miktarı 14691 kg olarak teşekkül etmiştir. Kooperatif üyesi balıkçıların en çok deniz çıkışı, en çok av ve brüt geliri Mayıs ayında ortaya çıkmıştır.Gökova Bay is one of the most important specially protected areas in Turkey. Small scale fishery dominates the fishery in the Bay. Fishers usually use fishing gears such as longline and gill nets. This research covers the S.S Akyaka Fishery Cooperative which is located in Akyaka and uses the Gökova Bay for fishing. Material of the study based on one year (May 2005-April 2006) data records of the cooperative. Furthermore, face to face interviews with cooperative members and management board of the cooperative were also used for analysis. This research deals with S.S Akyaka Fishery Cooperative and reveals the annual course of the variables such as catch composition and quantity of catches, effort, number of daily sails, changes in price, and the interrelations of these data throughout the mentioned year. By conveying these relations, suggestion are offered for the betterment of the cooperative by comparing and processing findings of operation such as general characteristics, structure, management, incomes & expenses as well as the managerial problems of the cooperative; and fishing activities like quantity of catch per species, number of sails, prices and monthly changes of these data. There are total of 35 members and 26 active boats recorded in the cooperative. Founded in 1992 , the cooperative mostly markets Octopus vulgaris, Sarda sadra, Pagellus erythrinus,, Saurida undosquamis, Merluccius merluccius, Sphyraena sp, Epinephelus aeneus, Upaneus molluccensis, Penaeus kerathurus ve Boops boops species, and the most profitable were observed to be Epinephelus aeneus, Penaeus kerathurus, Pagellus erythrinu, Octopus vulgais, Sparus aurata, Upaneus molluccensis, Merluccius merluccius, Sphyraena sp., Diplodus vulgaris ve Saurida undosquamis species. During the given period, the total quantity marketed was recorded as 14691 kgs. Cooperative members are recorded to have sailed, catch and earn mostly in May

Viability of trawl fishing fleed in Foça (The Aegean Sea), Turkey and some advices to central management authority

This study was conducted in Foça (The Aegean Sea) during the 1999-2000 fishing season. It reveals trawl fishery from socio-economic point of view. Economic and financial performance of trawl vessels were carried out and economic viability of fishing enterprises were discussed as well. Trawl vessels were divided into three groups according to capacity of fishing gear, and non-parametric test Kruskal-Wallis analysis was used to test the differences between these groups (p<0.05). Findings indicate that increasing fuel price adversely affected the financial results. Solely fuel made 41,3% of the operating costs of trawl vessels. This is six times more than that prevails in EU countries. In terms of profitability, 45% of trawl vessels had no profit at all. As there is strong connection between economics and management of fishery, managerial authorities should consider that fishery cannot be managed without monitoring economics situation and take into account of these kinds of studies.This study was conducted in Foça (The Aegean Sea) during the 1999-2000 fishing season. It reveals trawl fishery from socio-economic point of view. Economic and financial performance of trawl vessels were carried out and economic viability of fishing enterprises were discussed as well. Trawl vessels were divided into three groups according to capacity of fishing gear, and non-parametric test Kruskal-Wallis analysis was used to test the differences between these groups (p<0.05). Findings indicate that increasing fuel price adversely affected the financial results. Solely fuel made 41,3% of the operating costs of trawl vessels. This is six times more than that prevails in EU countries. In terms of profitability, 45% of trawl vessels had no profit at all. As there is strong connection between economics and management of fishery, managerial authorities should consider that fishery cannot be managed without monitoring economics situation and take into account of these kinds of studies

Trol balıkçılığında yatırımın karlılık analizi,Foça (Ege Denizi)

Analysis of investment profitability in trawl fishery, Foça (Aegean Sea). Foça is located in the Aegean Sea and characterised by a multi-gear and multispecies fishery. Trawl fishery is one of the most important fishing activity in the region. in the present study, trawlers are revealed from the profitability point of view during the year of 1999-2000 fishing season. Static and dynamic methods such as economic rantability (Rate of Return on Investment), rate of turnover, Internal Rate of Return (ERR), Net Present Value (NPV), pay back period, were used and these values and rates were carried out for trawl fishery. Results of the study indicate that 70% of trawlers are not economically sustainable and need to be better managed.Foça, Ege Denizinde yer alır ve bir çok av aracının, bir çok balık türünün yer aldığı bir balıkçılık ile karakterize edilir. Trol balıkçılığı bölgede en önemli balıkçılık aktivitelerinden biridir. Bu çalışmada, trol balıkçılığı karlılığı açısından ele alınmış ve 1999-2000 yılı av sezonu süresince çalışan trol tekneleri incelenmiştir. Trol balıkçılığının karlılığını ortaya koyarken ekonomik rantabilite, mali rantabilite, iç karlılık oranı, net bugünkü değer, geri ödeme süresi gibi statik ve dinamik yöntemler kullanılmıştır. Çalışmanın sonuçlan, trol teknelerinin %70'inin ekonomik olarak sürdürülebilir olmadığını ve daha iyi işletilmeye gerek duyduğunu göstermektedir

Foça yöresi trol teknelerinin birim av gücü ve ekonomik yapısı üzerine araştırmalar

SUMMARY Importance of fishing by trawlers increases day by day in the production of fish in the world and Turkey. We have responsibilities that searching of fishing activity and its economical analysis because of Foça has taken second place as trawling area after Black Sea Region. During this research, 30 trawlers were detected in that area and has been worked with 22 of them and survey has been done too. The vessels, which were investigated have modem equipment. 105-350 Horse Power. 15-24 m length and 93 % of them made by wooden material. hi this study, technical characteristics of gear, fishing area and its specifications, situations of crew, distribution of income, trawling operation were explained. During 1994, economic results of exploitation has been reported. Although income table of trawling vessels in searching, area was reported. Average net income for each vessel was determined as 989.800.00ÖTL. In addition to that net income was positive and economic rantability was 92.5%, which shows that trawling activities in Foça were profitable and successful. 43ÖZET Trol (akımlarıyla avcılık dünya ve ülkemiz su ürünleri üretiminde giderek artan bir önem arz etmektedir. Türkiye'de trolcülüğün Karadeniz'den sonra yoğun bir şekilde Ege Denizi, Foça civarında yapılması, bölge trollerinin avcılık ve ekonomik faaliyetlerinin araştırılmasını kaçınılmaz kılmıştır. Çalışma kapsamında araştırına bölgesinde 30 adet trol teknesi tespit edilmiş ve tam sayım yöntemi hedeflenerek bunların 22 adeti ile çalışılmış ve anketler yapılmıştır. İncelenen trol takımlarının büyük bir bölümünü modem donanıma sahip, 105-350 MP motor gücünde, 15-24m. boylarında ve % 93ü ahşap tekneler oluşturmuştur. Çalışmada takımlara ait teknik özellikler, av sahaları ve özellikleri, personel durumu, gelirin bölüşümü-paycılık ve operasyon özellikleri hakkında ayrıntılı bilgiler verilerek trol işletmelerine ait 1994 yılı ekonomik faaliyet sonuçlan açıklanmıştır. Bununla birlikte araştırma bölgesi trol takımlarının 1994 yılı gelir tablosu çıkarılmış ve her bir trol takımı için ortalama net hasıla 989.800.000 TL. olarak tespit edilmiştir. Net hasılanın pozitif çıkmasının yanısıra, ekonomik rantabilitelerinin de % 92.5 oranında teşekkül etmesi, Foça'daki trollerin avcılık faaliyetlerini karlı ve başarılı işletmeler olarak yerine getirdiklerini göstermişti