Biological Oceanography Research Trends by Lea P. Mertens

By Lea P. Mertens

Organic oceanography matters the biology and ecology of oceanic, marine, coastal and estuarine organisms. those variety from viruses and micro organism to microbes and phytoplankton, from zooplankton and benthic invertebrates to shellfish, fish and marine mammals. The organisms stay in a dynamic fluid simply defined as a chemical soup that covers seventy one percentage of the earth's floor and is in detail coupled to the ambience, the seafloor and the land. hence, to figure out how organisms are encouraged via their atmosphere, organic oceanographers needs to functionality throughout many sub-disciplines reminiscent of biochemistry, genetics, body structure, behaviour, inhabitants dynamics and group ecology. they have to be an expert of ocean physics, chemistry, geology, and atmospheric and radioactive strategies. This ebook offers the most recent study during this box from world wide.

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1993). Since these authors, this ‘technological revolution’ coincided with a reinforced concern felt in the western world for physical oceanography and marine biology. On 1860, the recuperation of a submarine cable from 2000 m depth off Sardinia, which was covered by animals, allowed to reject the Azoic theory in the MED, which had been formulated some years ago by Edward Forbes in the Aegean sub-basin, suggesting that no life existed below 600 m depth. At the end of this century, the first scientific surveys were developed and numerous research marine stations were established along the MED coast.

The main target species, along with the gear used in taking them in the most important smallscale fisheries in both basins of the MED, are shown in Table 3. The bottom trawl fishery is developed on the continental shelf and upper slope down to approximately 800 m. Some of the units (small vessels) operate almost exclusively on the continental shelf (targeting red mullets Mullus surmuletus and M. g. market prices). , 2006). ) Table 2. 4 GSA1: between strait of Gibraltar and Cape of Gata, GSA5: Baleric Islands; GSA6S: between Cape of Gata and Cape San Antonio, and GSA6N: between Cape San Antonio and Cape of Creus Research Trends on Demersal Fisheries Oceanography in the Mediterranean 19 Table 3.

2005. , 2006 divers Metaxatos, 2004 Taxonomic group of each species is shown in parentheses after the name: Fi (fish), Cr (Crustacean), Ce (Cephalopod), Bi (Bivalve). 20 Joan Moranta, Antoni Quetglas, Enric Massutí, et al. Figure 6. Percentage of landings (A, in weight) and earnings (B, in euros) in the four main fleets for the period 2000-2006, both pelagic (purse seine and drifting longline) and demersal (trawl and small-scale), of two commercially important ports of Iberian Coast (Ca:Sant Carles de la Ràpita, Ro: Roses) and the Balearic Islands (BI) in the western Mediterranean.

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