A Preliminary Study on Seasonal Changes in the Feeding Ecology and Growth Patterns of the Lessepsian Red Sea Goatfish Parupeneus forsskali Fourmanoir & Guézé, 1976 in the Gulf of Antalya, Eastern Mediterranean

Year 2025, Volume: 10 Issue: 4, 424 - 430, 31.07.2025

Betül Baran , Abdullah Öz , İlayda Güven , Nehir Kaymak

https://doi.org/10.35229/jaes.1686013

Abstract

The Red Sea goatfish, Parupeneus forsskali Fourmanoir & Guézé, 1976, is endemic to the Red Sea and the Gulf of Aden and is a Lessepsian species that entered the East Mediterranean through the Suez Canal in the early 2000s. This study aimed to determine the changes in the feeding ecology and growth characteristics of P. forskolin distributed in the Gulf of Antalya during two seasons. Statistical analyses revealed that individuals caught in the winter season were heavier and longer than those caught in the autumn season. In autumn, they exhibited high condition with negative allometric growth, whereas in winter, they showed low condition with positive allometric growth. The dietary habits of the species were analyzed through stomach content analysis (F%, N%, W%, and IRI), which revealed a strong preference for crustaceans, particularly Mysida and Euphausiacea. Additionally, seasonal variations were observed in diet proportions and diversity. The contribution of crustaceans to the diet decreased in winter compared to autumn, while diet diversity increased. The findings from this study have the potential to serve as a valuable resource for various fields, including stock management, ecosystem conservation, and interactions between native and non-native species.

Keywords

Parupeneus forsskali , Lessepsian species , feeding ecology , stomach content analysis , condition factor

Ethical Statement

Bu çalışmada doğadan direk örnek taplanmamıştır. Bunun yerine örnekler yerel balıkçılardan temin edilmiştir. Dolayısıyla balıkçılardan zaten daha önceden ölmüş örnekler alındığı için etik kurul alınmamıştır.

Supporting Institution

Akdeniz Üniversitesi

Doğu Akdeniz, Antalya Körfezi'nde Lessepsiyen Kızıldeniz Keçi Balığı Parupeneus forsskali'nın Beslenme Ekolojisi ve Büyüme Özelliklerindeki Mevsimsel Değişimler Üzerine Ön Çalışma

Abstract

Kızıldeniz keçi balığı, Parupeneus forsskali Fourmanoir & Guézé, 1976, Kızıldeniz ve Aden Körfezi'ne endemik olup, Suez Kanalı aracılığıyla 2000'li yılların başında Doğu Akdeniz'e giren bir Lessepsian türüdür. Bu çalışma, Antalya Körfezi'nde dağılan P. forskkali'nin beslenme ekolojisi ve büyüme özelliklerindeki değişiklikleri iki sezon boyunca belirlemeyi amaçlamıştır. İstatistiksel analizler, kış sezonunda yakalanan bireylerin, sonbahar sezonunda yakalananlardan daha ağır ve uzun olduğunu ortaya koymuştur. Sonbaharda, negatif allometrik büyüme ile yüksek kondüsyon sergilerken, kışın, pozitif allometrik büyüme ile düşük kondüsyon gösterdikleri gözlemlenmiştir. Türün beslenme alışkanlıkları, mide içeriği analizi (F%, N%, W% ve IRI) yoluyla incelenmiş ve karideslere, özellikle Mysida ve Euphausiacea'ya güçlü bir tercih gösterdiği belirlenmiştir. Ayrıca, diyet oranları ve çeşitliliğinde mevsimsel değişiklikler gözlemlenmiştir. Karideslerin diyete katkısı, sonbahara kıyasla kışın azalmış, diyet çeşitliliği ise artmıştır. Bu çalışmanın bulguları, stok yönetimi, ekosistem koruma ve yerli ile yerli olmayan türler arasındaki etkileşimler gibi çeşitli alanlar için değerli bir kaynak olma potansiyeline sahiptir.

Keywords

Parupeneus forsskali , Lessepsian türler , beslenme ekolojisi , mide içeriği analizi , kondüsyon faktörü

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