Pandalus jordani is a protandrous (sequential) hermaphrodite. Populations show large year-to-year variation in age composition. In response to this variation, individuals alter the age at which they change sex. This response is predicted by a genetic model that assumes that an individual shrimp maximizes its genetic contribution to the next generation.
to the Common Fishes and. The peninsula of Baja California has a very interesting and unique marine environment. The diversity of fishes and invertebrates increases substantially as you head down Coral bottoms are common in this region, and there is a true coral reef at Cabo. A thin paperback guide to marine animals around Baja-not at all Sea of Cortez Marine Animals A Guide to the Common Fishes and .
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The spread of a graph is the difference between the largest and most negative eigenvalue of its adjacency matrix. We show that for sufficiently large n, the n-vertex outerplanar graph with maximum spread is a vertex joined to a linear forest with Ω(n) edges. We conjecture that the extremal graph is a vertex joined to a path on n − 1 vertices.
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