Length–weight relationships for 21 fish species (Actinopterygii) from southeastern Gyeongsangnam-do, South Korea Length–weight relationships (LWR) were estimated for 21 fish species sampled from southeastern Gyeongsangnam-do, South Korea, including the Ulju basin (Yangsan and Hoeya rivers) and the Miryang River ...

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

Feeding ecology and strategy of Japanese seabass, Lateolabrax japonicus (Actinopterygii, Acropomatiformes, Lateolabracidae), in the southern waters off Korean peninsula This study examined the feeding ecology of Lateolabrax japonicus (Cuvier, 1828) in Korean coastal waters, focusing on variations in diet composition across the reproductive seasons and size classes of...

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 👇

Rapid expansion of a Lessepsian migrant crab, Gonioinfradens giardi (Crustacea, Brachyura, Portunidae), in the Ionian Sea: New records and early evidence of establishment The portunid crab, Gonioinfradens giardi (Nobili, 1905), native to the Red Sea and the Indian Ocean, is one of the recent alien decapods expanding in the Mediterranean Sea. Following the first confirm...

🦀The paper documents the expanding presence of 𝘎𝘰𝘯𝘪𝘰𝘪𝘯𝘧𝘳𝘢𝘥𝘦𝘯𝘴 𝘨𝘪𝘢𝘳𝘥𝘪, a portunid #crab native to the Red Sea & Indian Ocean, now establishing itself in the central Mediterranean. Read more about it here:

doi.org/10.3897/aiep...

#invasive #species #marine #biology

🎉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

Or, dive straight into the research here ⤵️
doi.org/10.3897/aiep...

#crab #invasivespecies #invasiveness #conservation #marine #monitoring #crustacean

A new crab is settling in the Mediterranean: early evidence of establishment of a Lessepsian species in the Ionian Sea | Blog New research reveals the rapid expansion of the portunid crab, Gonioinfradens giardi, highlighting ongoing biological changes in the Mediterranean Sea.

🦀 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...

Acta Ichthyologica et Piscatoria ACTA ICHTHYOLOGICA ET PISCATORIA (AIeP) is an international, peer-reviewed scientific journal that publishes articles based on original experimental data or experimental methods, or new analyses of al...

🎉 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...

Reproductive and growth parameters of Chelon auratus (Actinopterygii, Mugiliformes, Mugilidae) in Bizerte Lagoon, Tunisia Effective management of the golden grey mullet, Chelon auratus (Risso, 1810), in Mediterranean coastal ecosystems, including the Bizerte Lagoon, requires a comprehensive understanding of its biologica...

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...

Rahman Patimar joins Acta Ichthyologica et Piscatoria as a new subject editor Rahman Patimar is a fisheries biologist with 25 years of experience as a faculty member and head of department at Gonbad Kavous University, Iran. His research focuses on fish and fisheries biolog...

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

Under threat in North African reservoirs: The decline of the Algerian barb, Luciobarbus callensis (Actinopterygii, Cypriniformes, Cyprinidae), in Tunisia as a case study Despite numerous studies on stocked freshwater fishes in Tunisian reservoirs, the population status of native species remains poorly documented. This study aims to address a critical knowledge gap by ...

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

New record of white shark, Carcharodon carcharias (Elasmobranchii, Lamniformes, Lamnidae), from the Mediterranean Spanish coast This study presents a new record of the white shark, Carcharodon carcharias (Linnaeus, 1758), in Spanish Mediterranean waters. We discuss this finding in the context of documented records from 1862 to...

Dive deeper into the full article here: doi.org/10.3897/aiep...

#greatwhiteshark #sharks

🎉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...

Great white sharks in Spain: new record sparks a 160-year review | A juvenile great white shark was caught off Spain, prompting further research confirming its elusive presence in the Spanish Mediterranean.

Or learn more about it on @pensoft.net's blog: blog.pensoft.net/2026/02/10/g...

🦈 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...

Three juvenile Natrix natrix (Reptilia) as prey of Oncorhynchus mykiss (Actinopterygii, Salmoniformes, Salmonidae) in a Bavarian stream On 14 May 2025, three juvenile grass snakes, Natrix natrix (Linnaeus, 1758), were dissected from the stomach of a single rainbow trout, Oncorhynchus mykiss (Walbaum, 1792), caught in the Ammer River, ...

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

Cc: @stockholm-uni.bsky.social

Recent evidence of a functionally extirpated ecotype of herring, Clupea harengus (Actinopterygii, Clupeiformes, Clupeidae), in the southern Stockholm Archipelago, Baltic Sea The fall spawning ecotype of the herring, Clupea harengus Linnaeus, 1758, is considered functionally extirpated in the Baltic Proper. Once the dominant ecotype in fisheries landings of herring, few ob...

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...