By J.H.S. Blaxter (ed.), A.J. Southward (ed.)
Quantity 25 of this authoritative evaluation sequence maintains the excessive usual set by means of the editors some time past. Marine biologists far and wide have come to worth and revel in the wide range of thought-provoking papers written through invited experts.In this quantity are experiences of 4 animal teams which span the full diversity of the marine nutrients chain. The function of parasites in ecology is a becoming curiosity and the parasites of zooplankton are defined intimately for the 1st time. features of thegastropods, cephalopods and fish existence also are tested intimately.
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Additional resources for Advances in Marine Biology, Vol. 25
The larval escape response is typically a fast-startle response, comprised of a C-shaped contortion and rapid acceleration (Eaton and DiDomenico, 1986; Blaxter and Batty, 1985). , 1977; Blaxter and Batty, 1985; Blaxter, 1986). Zottoli and Horne (1983) demonstrated a connection between the lateral line and Mauthner cells in adult goldfish. In the zebrafish the faststartle response can be elicited in embryos by tactile or vibrational stimulation as early as 44 h after fertilization (Eaton and DiDomenico, 1986).
I Hake eggs 1 ,a Hake yolk-sac larvae Eggs ai Hake feeding larvae , , , , , , -1 I 1 Euchaeta elongata Sagitta elegans i Pleurobrachia bacheii Prei ators Aequorea victoria iA____ L Month PREDATION AND THE RECRUITMENT PROBLEM 29 stages until larvae begin to feed (Bailey, 1982). This distribution could be an adaptation to avoid predation of eggs by filter-feeding fishes, such as Pacific herring, in the near-surface water of Puget Sound. Although eggs probably are not vulnerable to many invertebrate predators, except amphipods and certain medusae (Bailey and Yen, 1983), yolk-sac larvae are vulnerable to many invertebrates that occur throughout the water column.
He reasoned that alternative prey abundance will affect the time required for a predator to obtain its maximum ration. From his model, Pepin concluded that larval mortality should be a function of predator abundance scaled to relative alternative prey abundance. To our knowledge, the influence of alternative prey on predation rates on fish eggs and larvae in the sea has not been demonstrated. In theory, if prey density were high enough for the predator to make a choice, the rate of predation on one type of prey must decrease if it co-occurs with a less evasive prey (Vinyard, 1980), especially if the predator satiates quickly.
Advances in Marine Biology, Vol. 25 by J.H.S. Blaxter (ed.), A.J. Southward (ed.)