Studio portrait of Werner and Hans Rath; Mannheim Portraits Family

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Family portrait including Elsa Fleissig nee Loewenthal, August Fleissig, Lena Loewenthal, Hans Frankenbach and Justin Loewenthal Portraits Family

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Walther Simon of Hamburg with his wife and daughter Ursula outdoors; Schenectady, New York Portraits Family

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Studio portrait of unidentified woman with three young boys Portraits Family

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Portrait of Molling and Sanger (Loewy) families on vacation; Marienbad Portraits Family

Therese Molling (1890-1981) is in back row in white dress, to her left is her mother Henny Molling nee Meyerhof (1864-1934), her husband (and Therese's father) Adolf Molling (1865-1921) is posing on the grass in front.

Elizabeth Engel nee Benjamin-Rasmussen with her daughter Dorel Hall nee Engel in Elizabeth's home; Silver Springs, Maryland Portraits Family

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Reproduction of family tree, possibly the Gottschalk Stammbaum from the home of Henriette Gottschalk nee Rothschild Genealogy

Others remember the Gottschalk Stammbaum from the home of Henriette Gottschalk nee Rothschild as having only one tree

John and Ursula Schlosstein nee Gottschalk with their infant son Ralph. portraits family

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Therese Godshaw's nee Molling 70th birthday party at the Krakauer home; Boston Portraits Family

Left to right behind table: John Krakauer, Donald, Michael and Robert Godshaw (Children of Hal and Anne), Grandma Therese Godshaw nee Molling, Julius Pick (Grandfather of Robert, Michael and Donald). In front of table: Wendy and Gerry Godshaw (children of Kurt and Edith.

Outdoor family portrait after the memorial services for Therese Godshaw nee Molling at Hal Godshaws house; Argonne Drive, Kenmore, New York.

Front row from left to right: Robert Godshaw, Wendy Godshaw, Rosel Pick (Anne Godshaw's mother), Debbie Godshaw born Mariner, Hal Godshaaw, Francis Schlosstein; 2nd row from left to right: David Dysert, Mickey Sloan born McMath, Edith Godshaw nee Osterer, baby (probably Gary Godshaw), Anne Godshaw born Pick, Julius Pick (Anne's father), Ursula Schlosstein born Gottschalk, Elizabeth Krakauer nee Gottschalk, Michael Godshaw; back row from left to right: Charles (Karl-Hermann Solomon) Sloan, Gerald Godshaw (partially hidden), unknown (probably Peter Godshaw), Kurt Godshaw, John Krakauer, Donald Godshaw, Tom Krakauer, Ralph Schlosstein, John Schlosstein.

Outdoor family portrait after the memorial services for Therese Godshaw nee Molling at Hal Godshaws house; Argonne Drive, Kenmore, New York.

Front row from left to right: Robert Godshaw, Wendy Godshaw, Rosel Pick (Anne Godshaw's mother), Debbie Godshaw born Mariner, Hal Godshaaw, Francis Schlosstein; 2nd row from left to right: David Dysert, Mickey Sloan born McMath, Edith Godshaw nee Osterer, baby (probably Gary Godshaw), Anne Godshaw born Pick, Julius Pick (Anne's father), Ursula Schlosstein born Gottschalk, Elizabeth Krakauer nee Gottschalk, Michael Godshaw; back row from left to right: Charlie Sloan, Gerald Godshaw (partially hidden), unknown, Kurt Godshaw, John Krakauer, Donald Godshaw, Tom Krakauer, Ralph Schlosstein, John Schlosstein.

Portrait of Elly Goldschmidt and her children Ilse and Robert. Portraits Family

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Portrait of Joseph and his sister Elly Schoenbeck; Cologne, Germany. Portraits family

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Ilse and Robert Goldschmidt with their parents Albert Goldschmidt and Elly nee Schoenbeck grandfather Albert Schoenbeck and great grandmother Sophie Schoenbeck nee Mahler. Portraits Family

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Optimising between and within family selection for harvest weight in prawns with restricted harvest size.

Manual grading of prawns restricts the number that can be harvested. A restricted harvest size places a limit on the opposing within family and between family sources of selection pressure. A simulation study with inbreeding constrained at 0.5% per generation, a harvest size of 2000, heritability of 0.3, common family environmental effect of 0.1, indicates that maximum response to selection could be achieved with as few as 40 families. Increasing the number of families above 80 may reduce total selection response. It is important to be aware that increasing the number of families may not always yield a greater genetic response.