Results 101 to 110 of about 6,245 (201)

A review of diseases associated with cage culture systems: diagnosis and control in smale scale fish farming [PDF]

open access: yes, 1999
Fish cage culture is a rapid aquacultural practice of producing fish with more yield compared to traditional pond culture. Several species cultured by this method include Cyprinus carpio, Orechromis niloticus, Sarotherodon galilaeus, Tilapia zilli ...
Amubode, F., Okaeme, A.N., Olufemi, B.
core  

An annotated checklist of freshwater fishes of Armenia [PDF]

open access: yes, 2001
A list of freshwater fishes inhabiting lakes, reservoirs and rivers of Armenia is presented which include 39 species and subspecies belonging to 5 orders, 9 families and 29 genera.
Gabrielyan, B.K.
core  

Freshwater Macroinvertebrates [PDF]

open access: yes, 2003
The purpose of this resource is to sample, identify, and count macroinvertebrates at a Hydrology Site. Students collect, sort, identify, and count macroinvertebrates from habitats at their site.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core  

MACROINVERTEBRATES COMPOSITION IN THE BLIZNEC STREAM, SECOND AND THIRD MAKSIMIR LAKE [PDF]

open access: yesCroatian Journal of Fisheries, 2004
Qualitative and quantitative macroinvertebrates in spring period was investigated during two years in the first and second Maksimir Lake and Bliznec stream. The domination of Gastropoda was outstanding at these three investigated sites. From time to time
Marina Piria   +2 more
doaj  

De Nederlandse bloedzuigers Hirudinea

open access: yes, 1982
This publication is a revision of one of the older KNNV publications on the Dutch leeches from 1960. A survey is given of the Dutch Hirudinea and a few species, marked with an asterisk, occurring in the vicinity of the Netherlands. Data are given on taxonomy, biology, ecology, habitat and distribution within and outside the Netherlands for all species ...
Dresscher, T.G.N., Higler, L.W.G.
openaire   +1 more source

New Host and Geographic Distribution Records for the Fish Leech Myzobdella reducta (Meyer, 1940) (Hirudinida: Piscicolidae) [PDF]

open access: yes, 2014
Allen, J. W., Jr.   +8 more
core   +3 more sources

Ingestive behaviour and physiology of the medicinal leech [PDF]

open access: yes, 1988
Ingestion lasts 25 min in Hirudo medicinalis and is characterized by pharyngeal peristalsis which fills the crop. This peristalsis has an initial rate of 2.4 Hz which decays smoothly to 1.2 Hz at termination of ingestion. During ingestion, the leech body
Dickinson, M. H.   +3 more
core  

First Record of Dina Lineata (Hirudinea: Erpobdellidae) in Greater Zab River Kurdistan Region-Iraq

open access: yesScience Journal of University of Zakho, 2013
The leech Dina lineata (Müller, 1774) was recorded in the present study for the first time in Iraq, from samples collected on the stone from Greater Zab River west of Erbil city during a period from May to September 2006.
LUAY A. ALI, HAYFA J. JAWAIR
doaj  

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