Cephalopod Capture Methods: An Overview

Data di pubblicazione: 1991

Da: ConchBooks, Harxheim, GermaniaConchBooks

Venditore con 3 stelle

Venditore AbeBooks dal 1 marzo 2007

Condizione: Usato

EUR 6,00

EUR 24,00 spedizione 
Spedito da Germania a U.S.A.

Quantità: 1 disponibile

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Descrizione dell’articolo da parte del venditore

Cephalopods, including octopus, cuttlefish, and squid, are a major component in the marine biomass. Due to high behavioral diversity among species, uncertainty exists concerning the general applicability of sampling and capture techniques. This factor impacts on understanding of the overall abundance and status of stocks. In addition to accelerated exploitation of cephalopods by international fisheries countries, cephalopods represent a major prey component in the diets of other marine species. In the Southern Ocean alone, it is estimated that the consumption of cephalopods by seabirds, whales and seals may reach 34 million tons annually. On a worldwide basis, the total natural predation on cephalopods probably exceeds 100 million tons, more than the total annual harvest of aquatic species by humans. Scientists and fisheries managers are not able to accurately measure cephalopod stocks under direct exploitation. Yet the relatively few species being exploited comprise only a fraction of available worldwide resources. Some of the traditional capture techniques are discussed with an indication of their effectiveness; possible options and access to new or latent methods also are noted. 12 pp., 1 fig., gr. 8.…

Codice articolo W22363

Dati bibliografici

Titolo
Cephalopod Capture Methods: An Overview
Autore
Rathjen, W. F.
Anno di pubblicazione
1991

ConchBooks

Harxheim, Germania

Venditore con 3 stelle

Venditore AbeBooks dal 1 marzo 2007

Tariffe di spedizione da Germania a U.S.A.

ArticoloDa 25 a 45 giorni lavorativiDa 8 a 14 giorni lavorativi
Primo articoloEUR 24,00EUR 34,00
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Descrizione dello Store

Founded in 1985 we are specialized in worldwide literature on Mollusca and marine invertebrates. Our publishing house has meanwhile published approximately 60 titles on that field of interest. We have stocks of most available international books on Malacology and a huge amount of antiquarian literature, even of the latter most titles are only available once.

Specializzazione

Weichtiere / Shells, Schnecken / Snails & Slugs, Muscheln / Bivalves, Tintenfische / Squids / Octopusses / Ammonites, Malacology, Conchology, Marine Biology