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A calanoid is a variety of copepod - a kind of very small crustacean - with a joint between the fifth and sixth body segment.
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∙ 9y ago
A calanoid is a type of small planktonic crustacean that is a member of the order Calanoida within the class Maxillopoda. They are an important part of marine and freshwater ecosystems, forming a key link in the food chain by consuming phytoplankton and being a food source for larger organisms.
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What has the author Taisoo Park written?
Taisoo Park has written: 'Taxonomy and Distribution of the Calanoid Copepod Family Heterorhabdidae (Bulletin of the Scripps Institution of Oceanography)' 'Calanoid copepods of the family Euchaetidae from the Gulf of Mexico and western Caribbean Sea' -- subject(s): Euchaetidae 'Taxonomy and distribution of the calanoid copepod family Heterorhabdidae' -- subject(s): Heterorhabdidae, Classification
What has the author John Mauchline written?
John Mauchline has written: 'Euphausiid, Stomatopod and Leptostracan Crustaceans' -- subject(s): Crustacea 'The Biology of calanoid copepods'
What does a sand eel eat?
Sand sharks it squid but also eat crab and lobster
What has the author Howard Stanley James Roe written?
Ernest Roe has written: 'Students, lecturers and librarians : a study of some problems of communication' -- subject(s): Academic libraries, Libraries and students, Relations with faculty and curriculum 'Academics, librarians, resource management and resource use' -- subject(s): Academic libraries, College teaching 'Some dilemmas of teaching' -- subject(s): Teaching 'Informed professional judgment' -- subject(s): College students, College teachers, Evaluation, Rating of, Universities and colleges 'Using and misusing the materials of teaching and learning' -- subject(s): Aids and devices, Communication in education, Teaching
How big are green algae in water?
Not long if they land on me, horrid tickly things. This is a tricky one to ask as there are around 4,400 different types of greenfly and, as one might expect, there is some degree of variation in the lifespan of different types. It's also worth remembering that a greenfly is only one stage of the insect we call an aphid's life - it spends time as a nymph (pre-adult) and as an egg (in most cases - unusually for an insect, some species can produce live young). The common greenfly we see in the UK is called Brevicoryne brassicae, the cabbage aphid. Nymphs hatch from eggs after about a week to 12 days. The time the individual then takes to develop into the adult greenfly then probably depends more on environmental factors than time - ie, availability of food, temperature etc. However, once it does, a female will be able to produce young for around a month at a rate of five or six per day, after which she will die. I've been unable to find any similar data for male aphids - but "about six weeks" seems a reasonable answer to your question. Here's some interesting greenfly facts: Greenfly can reproduce asexually - that is, a female does not need a male in order to produce young. They've been around for about 280 million years, far longer than humans have. Ants farm aphids in much the same way that we farm cows - the ants collect a sticky substance known as honeydew which made by the aphids and in return protect them from predators. Greenfly often travel vast distances on wind currents - individuals marked in the UK have been found as far away as Russia.
