🎉 We are pleased to welcome Dr. Sanny David Lumayno as a new Subject Editor in our open-access journal! ➡️ Learn more about his expertise here: aiep.pensoft.net/news/1250

🦐 Can #shrimp head meal replace fishmeal in milkfish (Chanos chanos) fry diets? Up to 25% substitution matched the control in growth, feed efficiency, and survival, but higher inclusion levels (≥50%) saw significant declines across all three. Full #OA article here doi.org/10.3897/aiep...

A new study investigates the availability of intact fish cells in water as a source of high-quality eDNA, using live and dead Rainbow Trout. Dead fish released significantly more total and intact-cell #eDNA - these findings provide implications for environmental genetics and biodiversity monitoring

This research paper represents the first year-round study of the Naujan white #goby (Glossogobius aureus) from the Philippines, providing practical implications for #aquaculture. Curious? Learn more: doi.org/10.3897/aiep...

🎉 We are delighted to welcome Dr. Ivan Špelić as a new Subject Editor! ➡️ Learn more about his expertise here: aiep.pensoft.net/news/1244

🦈A new study on the chain dogfish (Scyliorhinus retifer) from the Gulf of Mexico reveals clear sexual dimorphism - in body measurements and even in the density and shape of their tiny skin scales. Find out more in our #OA article: doi.org/10.3897/aiep... #Ichthyology #MarineBiology

New study found that cottonseed kernel powder can replace up to 10% of #fishmeal in juvenile goldfish diets with no significant impact on growth, feed efficiency, or survival over 90 days. Is this the future of #sustainable feed options for #aquaculture? #OA study here: doi.org/10.3897/aiep...

New study on gilthead #seabream found Atlantic-origin fish trended toward better growth & feed efficiency than Mediterranean #fish under cage farming - but statistical correction changed that. Learn all the details here: doi.org/10.3897/aiep...

The Abu #mullet (Planiliza abu) is establishing in the southern Caspian Sea region, as well as its spread into inland #waters. New research shows that the species’ known range is expanding northward toward a cool temperate climate, extending beyond its previously known range in southern Iran:

🐟 The Benguela hake (Merluccius polli), typically found along the Atlantic coast of Africa, has been recorded in the Gulf of Cádiz for the first time - hinting at a northward range expansion linked to tropicalization of the region: doi.org/10.3897/aiep...

🧬The complete mitochondrial genome of 𝘈𝘤𝘩𝘦𝘪𝘭𝘰𝘨𝘯𝘢𝘵𝘩𝘶𝘴 𝘪𝘮𝘣𝘦𝘳𝘣𝘪𝘴, a small freshwater #fish from the Yangtze and Yellow River systems, has been sequenced - offering new insight into the #evolutionary relationships of bitterling fishes: doi.org/10.3897/aiep... #genetic #study

Length-weight relationships (LWR) estimated for 21 freshwater fish species from river systems in southeastern South Korea. LWR data for four species recorded in FishBase for the first time, with additional new records for 12 more. Read the full study here: doi.org/10.3897/aiep...

🦈Two juvenile great #white #sharks recorded in the Eastern Adriatic (Croatia 2018, Montenegro 2025), both reported by local fishers. Could the area be a nursery #habitat? Find out more in the open-access study: doi.org/10.3897/aiep...

The small-eyed squaretail (𝘛𝘦𝘵𝘳𝘢𝘨𝘰𝘯𝘶𝘳𝘶𝘴 𝘤𝘶𝘷𝘪𝘦𝘳𝘪) has been recorded in the Adriatic Sea near the Croatian coast, expanding its range and marking the first well-documented record from the Adriatic. All details can be found here: doi.org/10.3897/aiep... #fish #ichthyofauna

A new study examined the feeding #ecology of the Japanese #seabass in Korean coastal waters by analyzing fluctuations in diet composition across reproductive seasons and #fish size classes, thereby confirming the species’ status as a specialized piscivorous #predator. Find all the details here 👇

🎉We're excited to see research published in our making waves beyond #academia. 📰 BBC Wildlife by Melissa Hobson: www.discoverwildlife.com/animal-facts... 📰 National Geographic Poland by Jonasz Przybył: www.national-geographic.pl/przyroda/now... #marinebiology #invasive #species #invasiveness

15-month study of eelgrass beds off Geoje Island, Korea found 51 fish species - with strikingly different communities at sparse vs. dense sites. Habitat type and season both drove assemblage structure, tied to seagrass biomass and temperature: doi.org/10.3897/aiep... #marinebiology #seagrass

🦀 A new study highlights the rapid expansion of the non-indigenous Indo-Pacific crab 𝘎𝘰𝘯𝘪𝘰𝘪𝘯𝘧𝘳𝘢𝘥𝘦𝘯𝘴 𝘨𝘪𝘢𝘳𝘥𝘪 along the Ionian coast of Sicily - marking its westernmost presence in the Mediterranean to date. Read @pensoft.net blog post ⤵️ blog.pensoft.net/2026/04/01/a...

The sketch has turned out so nice! 🫶 If you're curious about the details around the discovery of 𝘗𝘵𝘦𝘳𝘦𝘭𝘦𝘰𝘵𝘳𝘪𝘴 𝘬𝘢𝘭𝘭𝘪𝘴𝘵𝘢 in Taiwan, check out the full study: doi.org/10.3897/aiep...

148 specimens collected from the Gulf of Thailand and the Andaman Sea provide morphological and #molecular insights into the #stingray genus Brevitrygon, enhancing understanding of population structure and #taxonomy in the region 👇 doi.org/10.3897/aiep...

🎉 We are excited to welcome Dr. Mario Santoro as a new subject editor! Learn more about his expertise here: aiep.pensoft.net/news/1155 #parasitology #parasites #ecology

❄️As Arctic oceans change, baseline #fish #biology data is urgently needed. A new study reports length-weight relationships for 12 #species from the Bering, Chukchi & Beaufort seas - including the first ever data for Arctic sculpin👇 doi.org/10.3897/aiep... @fisheries.noaa.gov

A new study sheds light on the #biology of the #catfish 𝘈𝘨𝘦𝘯𝘦𝘪𝘰𝘴𝘶𝘴 𝘭𝘪𝘯𝘦𝘢𝘵𝘶𝘴, found in the #Amazon and Orinoco basins. Interestingly, it is a nocturnal, #fish-eating species, in which females become larger and males reach maturity earlier: doi.org/10.3897/aiep...

From Japan to India: This recent paper tracks the Japanese spiny dragonet's epic 5,200 km Westernmost range extension into Indian waters! A striking reminder of how much hidden biodiversity lurks in trawl bycatch: doi.org/10.3897/aiep... @smnstuttgart.bsky.social

Researchers in Pakistan have successfully combined morphometric analysis and DNA barcoding to establish a reliable identification framework for three endangered catfish species in the Punjab river system. Read the full study: doi.org/10.3897/aiep.56.157418 #catfish

See the differences in trophic ecology, and mitochondrial genetic diversity of three ecologically and economically important species: Terapon jarbua, yellowfin bream (𝘈𝘤𝘢𝘯𝘵𝘩𝘰𝘱𝘢𝘨𝘳𝘶𝘴 𝘭𝘢𝘵𝘶𝘴), and eyebrow gobies (𝘖𝘹𝘺𝘶𝘳𝘪𝘤𝘩𝘵𝘩𝘺𝘴 𝘰𝘱𝘩𝘵𝘩𝘢𝘭𝘮𝘰𝘯𝘦𝘮𝘢) in Tam Giang Lagoon in central Vietnam: doi.org/10.3897/aiep...

Check out this comprehensive biological assessment of the golden grey mullet (𝘊𝘩𝘦𝘭𝘰𝘯 𝘢𝘶𝘳𝘢𝘵𝘶𝘴) in Bizerte Lagoon. By mapping growth, age, and maturity (at 2 years), this study provides the vital data needed for sustainable #fisheries management of this Mediterranean species. doi.org/10.3897/aiep...

We're delighted to announce that Prof. Rahman Patimar is joining our team as a Subject Editor! Read all about his expertise here: aiep.pensoft.net/news/1139

Discover what’s behind the declining populations of the #endemic Algerian barbel (𝘓𝘶𝘤𝘪𝘰𝘣𝘢𝘳𝘣𝘶𝘴 𝘤𝘢𝘭𝘭𝘦𝘯𝘴𝘪𝘴) in Tunisian reservoirs in this latest study: doi.org/10.3897/aiep... #fish #populations #biodiversitydecline

Meet the beautiful #dartfish - Ptereleotris Kallista, a new record for Taiwan, based on four specimens and a fresh photograph⤵️ doi.org/10.3897/aiep...

🧧 As we welcome the Year of the Horse, the Pensoft team extends our warmest wishes for a happy New Year! 🐎 To celebrate the occasion, we're taking a look at horse-related species published in our journals. ➡️ Check out our latest blog post to read all about them: blog.pensoft.net/2026/02/17/y...

A new record of the #triplefin 𝘌𝘯𝘯𝘦𝘢𝘱𝘵𝘦𝘳𝘺𝘨𝘪𝘶𝘴 𝘷𝘦𝘭𝘢𝘵𝘶𝘴 has been documented in the Yaeyama Islands (Iriomote). Surprisingly, it was collected at just 18m depth, despite the species being considered as a deep-water specialist: doi.org/10.3897/aiep... #distribution #morphology

🎉Recently published #article in our journal: New record of white #shark, 𝘊𝘢𝘳𝘤𝘩𝘢𝘳𝘰𝘥𝘰𝘯 𝘤𝘢𝘳𝘤𝘩𝘢𝘳𝘪𝘢𝘴 (Elasmobranchii, Lamniformes, Lamnidae), from the #Mediterranean Spanish coast made it to the home page of National Geographic Spain covered by Pedro Molina ⤵️ www.nationalgeographic.com.es/mundo-animal...

🦈 Accidental catch of a juvenile Great White #shark prompts a review spanning 1862-2023. The review showed that their presence is infrequent but persistent. Evidence suggests they may be following bluefin #tuna migrations into the region. Read the full article here: doi.org/10.3897/aiep...

Did you know that #reptiles can be prey to #salmonids? In a recent study from Germany’s Ammer River, a single rainbow trout (𝘖𝘯𝘤𝘰𝘳𝘩𝘺𝘯𝘤𝘩𝘶𝘴 𝘮𝘺𝘬𝘪𝘴𝘴) was found to have consumed three juvenile grass #snakes (𝘕𝘢𝘵𝘳𝘪𝘹 𝘯𝘢𝘵𝘳𝘪𝘹) ⤵️ doi.org/10.3897/aiep... #freshwater #ecology #trophicinteractions

New study shows that the fall spawning #herring 𝘊𝘭𝘶𝘱𝘦𝘢 𝘩𝘢𝘳𝘦𝘯𝘨𝘶𝘴, an ecotype thought to be functionally extinct from the Baltic Proper, are likely still present in #coastal #waters, with #larvae observed in the southern Stockholm Archipelago during the spring of 2023 and 2024: doi.org/10.3897/aiep...

What can mitochondrial DNA reveal about #fish #evolution? 🧬 Researchers sequenced the mitochondrial #DNA of the Scaly osman 𝘋𝘪𝘱𝘵𝘺𝘤𝘩𝘶𝘴 𝘮𝘢𝘤𝘶𝘭𝘢𝘵𝘶𝘴 and compared it across 56 carp (𝘊𝘺𝘱𝘳𝘪𝘯𝘪𝘥𝘢𝘦) species. 🔎See what they found: doi.org/10.3897/aiep...

As 2025 draws to a close, we at Pensoft want to extend our warmest wishes to our editors, reviewers, researchers, partners, and followers. Thank you for being part of our journey this year. Wishing you all a joyful holiday season and a bright start to the new year! 🎄✨

Last chance to stop by our booth (L12) in the Lennox Suite at #BES2025! What an incredible event it has been so far.

A 2.3 m four-pore slender giant moray has been recorded from Sinan, marking the first confirmed occurrence of 𝑆𝑡𝑟𝑜𝑝ℎ𝑖𝑑𝑜𝑛 𝑡𝑒𝑡𝑟𝑎𝑝𝑜𝑟𝑢𝑠 in Korean waters and the species’ new northern range limit. 🔗 doi.org/10.3897/aiep...

This paper has been resubmitted with an updated DOI: doi.org/10.3897/aiep...

Development of a saline-tolerant YY supermale UPV SpiN tilapia hybrid using molecular marker-assisted selection: doi.org/10.3897/aiep...htt

This study from a small Japanese estuary shows that 𝑍𝑜𝑠𝑡𝑒𝑟𝑎 𝑗𝑎𝑝𝑜𝑛𝑖𝑐𝑎 seagrass beds boost fish diversity and support key species more than nearby bare ground. 🔗 doi.org/10.3897/aiep...

This paper reports the first record of leucism in the spotted eagle ray, 𝐴𝑒𝑡𝑜𝑏𝑎𝑡𝑢𝑠 𝑛𝑎𝑟𝑖𝑛𝑎𝑟𝑖. 🔗 doi.org/10.3897/aiep...

The first regional stock assessment of 𝑆𝑐𝑜𝑚𝑏𝑒𝑟𝑜𝑚𝑜𝑟𝑢𝑠 𝑐𝑜𝑚𝑚𝑒𝑟𝑠𝑜𝑛 in the Eastern Mediterranean Sea provides evidence of overfishing and limited population resilience, underscoring the need for management interventions. 🔗 doi.org/10.3897/aiep...

Researchers present a new distributional record of the Indo-Pacific tropical sand goby, 𝐹𝑎𝑣𝑜𝑛𝑖𝑔𝑜𝑏𝑖𝑢𝑠 𝑟𝑒𝑖𝑐ℎ𝑒𝑖, from Jeju-do Island, Korea, and propose a new Korean common name. 🔗 doi.org/10.3897/aiep...

Five specimens of the cactus roach, 𝑅𝑢𝑡𝑖𝑙𝑢𝑠 𝑣𝑖𝑟𝑔𝑜, were collected from the westernmost Bulgarian stretch of the Danube River, representing the species' first record in the country. 🔗 doi.org/10.3897/aiep...

This pilot-scale study provides essential baseline information on early growth and survival of 𝐶𝑒𝑛𝑡𝑟𝑜𝑝𝑜𝑚𝑢𝑠 𝑛𝑖𝑔𝑟𝑒𝑠𝑐𝑒𝑛𝑠, a promising species for aquaculture diversification in the Eastern Tropical PacificI: doi.org/10.3897/aiep...

A large specimen of the large-eyed sackfish 𝑁𝑒𝑜𝑒𝑝𝑖𝑛𝑛𝑢𝑙𝑎 𝑚𝑖𝑛𝑒𝑡𝑜𝑚𝑎𝑖 is reported from western Taiwan, extending its range by approximately 1200 km southward. 🔗 doi.org/10.3897/aiep...

Researchers present length–weight relationships of 17 data-poor, noncommercial fish species sampled through bottom trawling in the waters of southwestern Taiwan. 🔗 doi.org/10.3897/aiep...