منابع مشابه
Effects of macroalgal structural complexity on nearshore larval and post-larval crab composition
Larval and post-larval crab distribution was surveyed in three different habitats in Kachemak Bay, Alaska to determine temporal and spatial variability. Distribution varied temporally and spatially from June 2005 to September 2006. Nine sites of varying habitat complexity were surveyed monthly using scuba surveys and light traps to measure habitat variables and quantify crab zoeae and megalopae...
متن کاملLarval and Post-Larval Stages of Pacific Oyster (Crassostrea gigas) Are Resistant to Elevated CO2
The average pH of surface oceans has decreased by 0.1 unit since industrialization and is expected to decrease by another 0.3-0.7 units before the year 2300 due to the absorption of anthropogenic CO2. This human-caused pH change is posing serious threats and challenges to the Pacific oyster (Crassostrea gigas), especially to their larval stages. Our knowledge of the effect of reduced pH on C. g...
متن کاملLinking Larval Settlement to Larval Transport: Assumptions, Potentials, and Pitfalls
The majority of benthic organisms inhabiting the nearshore, roughly the zone from 0 to 30 m water depth, have planktonic larvae that inhabit the pelagic environment, where larvae accumulate in an offshore larval pool away from their adult habitats. After a period of time ranging from minutes to years, with a 3 4 week mode for temperate species (Levin & Bridges, 1995), these larvae must return s...
متن کاملLarval nervous systems: true larval and precocious adult.
The apical organ of ciliated larvae of cnidarians and bilaterians is a true larval organ that disappears before or at metamorphosis. It appears to be sensory, probably involved in metamorphosis, but knowledge is scant. The ciliated protostome larvae show ganglia/nerve cords that are retained as the adult central nervous system (CNS). Two structures can be recognized, viz. a pair of cerebral gan...
متن کاملDrosophila adult and larval pheromones modulate larval food choice.
Insects use chemosensory cues to feed and mate. In Drosophila, the effect of pheromones has been extensively investigated in adults, but rarely in larvae. The colonization of natural food sources by Drosophila buzzatii and Drosophila simulans species may depend on species-specific chemical cues left in the food by larvae and adults. We identified such chemicals in both species and measured thei...
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ژورنال
عنوان ژورنال: Journal of the Marine Biological Association of the United Kingdom
سال: 1937
ISSN: 0025-3154,1469-7769
DOI: 10.1017/s0025315400053820