Results 21 to 30 of about 2,443 (215)

Natural Biota’s Contribution to Cultured Aquatic Animals’ Growth in Aquaculture Cannot Be Ignored

open access: yesAquaculture Research, Volume 2023, Issue 1, 2023., 2023
The rapid expansion of the aquaculture industry is accompanied by high organic and nutrient loadings from formulated feeds. This leads to water deterioration and pathogenic microorganisms. Natural biota (e.g., bacteria, phytoplankton, zooplankton, and zoobenthos) in ponds form important parts of cultured aquatic animals’ diets.
Shiyu Jin   +14 more
wiley   +1 more source

Neglected symbionts and other metazoan invertebrates associated with molluscs from Africa's largest lake: Diversity, biotic interactions and bioindication

open access: yesFreshwater Biology, Volume 67, Issue 12, Page 2089-2099, December 2022., 2022
Abstract Freshwater molluscs are hosts for diverse metazoan symbionts. However, apart from the digenean helminths, symbionts of molluscs are underreported worldwide. Therefore, this study focused on the diversity of oligochaetes, leeches, mites, insect larvae and nematodes associated with gastropods and bivalves from Lake Victoria, East Africa. Overall,
James Omondi Outa   +3 more
wiley   +1 more source

The Potential of Oligochaeta as Intermediate Host of Myxosporea Parasite in Common Carp (Cyprinus carpio Linnaeus)

open access: yesJurnal Akuakultur Indonesia, 2003
Three genera of oligochaeta, i.e. Branchiura sowerbyi, Limnodrillus sp. and Lumbriculus sp. were fed on spores of Myxobolus artus before predated to juvenile of Cyprinus carpio. Spores of myxosporean were found on the fish, which get Limnodrillus.
Yani Hadiroseyani
doaj   +1 more source

Identification of proteins from the secretory/excretory products (SEPs) of the branchiuran ectoparasite Argulus foliaceus (Linnaeus, 1758) reveals unique secreted proteins amongst haematophagous ecdysozoa

open access: yesParasites & Vectors, 2020
Background It is hypothesised that being a blood-feeding ectoparasite, Argulus foliaceus (Linnaeus, 1758), uses similar mechanisms for digestion and host immune evasion to those used by other haematophagous ecdysozoa, including caligid copepods (e.g. sea
Aisha AmbuAli   +6 more
doaj   +1 more source

Description of a new actinosporean type from South African freshwater [PDF]

open access: yes, 2004
The 1st report on actinospores described these organisms as parasites related to myxosporeans. For a long time this group of parasites was believed to represent an independent taxonomic entity.
Avenant-Oldewage, Annemarie   +2 more
core   +1 more source

Phylogenetic position of Dolops bidentata (Ichthyostraca: Argulidae) based on molecular data: first record of the genus in Mexico

open access: yesRevista Mexicana de Biodiversidad, 2021
Species included in the genus Dolops (Ichthyostraca: Argulidae) have been recorded from Southern and Central Africa, Australia, and mainly from South America, with no records from Central or North America.
Omar Lagunas-Calvo   +2 more
doaj   +1 more source

A new substrate for sampling deep river macroinvertebrates [PDF]

open access: yes, 2009
We compared macroinvertebrate communities colonising multiplate samplers constructed from perspex or tempered hardboard (wood) with an alternative artificial substrate constructed from folded coconut fibre matting (coir) enclosed in nylon netting ...
Chadderton, W. Lindsay   +2 more
core   +2 more sources

Development of a flow‐sensitive macroinvertebrate index for Australian rivers

open access: yesRiver Research and Applications, Volume 38, Issue 5, Page 846-862, June 2022., 2022
Abstract Hydrologically sensitive macroinvertebrate indices have been developed in Europe, the Americas and New Zealand to serve many purposes such as monitoring ecological responses to drought, flow regulation, water extraction and the provision of environmental flows.
Bruce C. Chessman   +2 more
wiley   +1 more source

Description of two new actinosporean types from a brook of Fuji Mountain, Honshu, and from Chitose River, Hokkaido, Japan [PDF]

open access: yes, 2003
Actinospore infection of oligochaetes living in the mud of 3 freshwater biotopes in Japan was studied. Using the cell-well plate method, a new aurantiactinomyxon type was found in 0.77 % of the examined Tubifex tubifex oligochaete specimens from a brook ...
Ogawa, K.   +4 more
core   +1 more source

The potential of aquatic bloodfeeding and nonbloodfeeding leeches as a tool for iDNA characterisation

open access: yesMolecular Ecology Resources, Volume 22, Issue 2, Page 539-553, February 2022., 2022
Abstract Leeches play important roles in food webs due to their abundance, diversity and feeding habits. Studies using invertebrate‐derived DNA (iDNA) extracted from leech gut contents to target vertebrate DNA have focused on the Indo‐Pacific region and mainly leveraged the leech family Haemadipsidae, composed of bloodfeeding terrestrial leeches, while
Christina Lynggaard   +4 more
wiley   +1 more source

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