Results 41 to 50 of about 7,835 (214)

First report of albinism in the South American catfish Imparfinis mirini (Siluriformes: Heptapteridae)

open access: yesRevista Mexicana de Biodiversidad, 2017
Albinism is a genetic condition caused by an autosomal recessive gene that affects normal pigmentation in animals. In Neotropical freshwater fish fauna, albinism cases are extremely rare, with only 14 species recorded among more than 6,000 described ...
Pedro S. Manoel   +2 more
doaj   +1 more source

Trigeminal and facial branchiomotor neurons have shared muscle targets in zebrafish larvae

open access: yesJournal of Anatomy, EarlyView.
Cranial nerve innervation map, based on previous studies, shows the trigeminal and facial motor nerves confined to the mandibular and hyoid arch muscles, respectively, except for the trigeminal nerve in the interhyoideus muscle (M.IH). The revised cranial nerve innervation map, based on this study, shows the facial nerve in the intermandibularis ...
Ritika Ghosal   +2 more
wiley   +1 more source

IDENTIFIKASI JENIS - JENIS IKAN DI SUNGAI BATANG GADIS KECAMATAN MUARASIPONGI KABUPATEN MANDAILING NATAL SUMATERA UTARA

open access: yesBioLink, 2017
Research about "Identification the type of fish in Sungai Batang Gadis Muarasipongi subdistrict Mandailing Natal Sumatra Utara" The study aims to determine the types of fish and Chemical Physics parameters.
Anwar anwar   +2 more
doaj   +1 more source

A molecular approach to systematics of Polypteriformes among Osteichthyes [PDF]

open access: yesItalian Journal of Zoology, 2004
Abstract The Sarcopterygii are considered to be the living species most closely related to the ancestors of the tetrapods: they include the extinct rhipidistians, the coelacanths and the dipnoans. Furthermore, many Authors debate whether the Polypteriformes should be assigned a very peculiar place in the phylogeny of the bony fishes. To investigate the
ROCCO, Lucia   +3 more
openaire   +1 more source

Climatic rainfall regime shapes energy flow, trophic structure, and secondary production in streams

open access: yesEcology, Volume 107, Issue 10, October 2026.
Abstract Changes in precipitation patterns linked to climate change have profound implications for the structuring and functioning of riverine ecosystems. This study investigates how rainfall influences secondary production by examining nine rivers across a sharp natural rainfall gradient over 3 years.
Bradley A. Strickland   +10 more
wiley   +1 more source

ĐA DẠNG THÀNH PHẦN LOÀI CÁ RẠN SAN HÔ Ở VỊNH XUÂN ĐÀI TỈNH PHÚ YÊN

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2022
Đã xác định được 65 loài cá rạn san hô thuộc 48 giống, 27 họ, 15 bộ của 2 lớp (cá Sụn – Chondrichthyes và cá xương – Osteichthyes) ở vịnh Xuân Đài, thị xã Sông Cầu, tỉnh Phú Yên.
Dinh Trung Hoang   +2 more
doaj   +1 more source

Rediscovering the Endangered Mediterranean Killifish Aphanius iberus: Environmental DNA Reveals Updated Distribution and Conservation Implications in Coastal Habitats

open access: yesEnvironmental DNA, Volume 8, Issue 5, September‐October 2026.
Key strongholds and successful reintroductions of the endangered Spanish toothcarp, as well as the discovery of remnant populations at some historical sites, were identified through environmental DNA monitoring. These findings highlight eDNA as an effective, non‐invasive tool for advancing conservation efforts of threatened aquatic fauna in fragmented ...
Tessa Lynn Nester   +3 more
wiley   +1 more source

Osteichthyes: tilápia: sistema digestório

open access: yes, 2011
Apresenta vista lateral da cavidade pleuroperitoneal de tilápia (Tilapia sp. (Osteichthyes: Perciformes)). Mostra, também, intestinos, fígado e gônadasComponente Curricular::Ensino Médio::BiologiaComponente Curricular::Educação Superior::Ciências ...
Sebben, Antonio
core   +1 more source

Osteichthyes: tilapia: sistema digestivo

open access: yes, 2016
Muestra una vista lateral de la cavidad pleuroperitoneal de la tilapia (Tilapia sp. (Osteichthyes: Perciformes)). También muestra los intestinos, el hígado y las gónadasEducação Superior::Ciências Biológicas::Biologia GeralEnsino Médio::BiologiaEducação ...
Sebben, Antonio
core   +1 more source

Understanding the welfare of aquarium fish

open access: yesAnimal Sentience
Bony fishes (Osteichthyes) are prevalent in public and domestic aquaria, yet evidence-based welfare practices exist for only a limited number of species.
Paul Rose
doaj   +1 more source

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